3 # Process this file with autoconf to produce a configure script.
5 # Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
7 # This configure.ac is free software; the author
8 # gives unlimited permission to copy and/or distribute it,
9 # with or without modifications, as long as this notice is preserved.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
13 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
16 dnl This configure script is complicated, because GRUB needs to deal
17 dnl with three potentially different types:
19 dnl build -- the environment for building GRUB
20 dnl host -- the environment for running utilities
21 dnl target -- the environment for running GRUB
23 dnl In addition, GRUB needs to deal with a platform specification
24 dnl which specifies the system running GRUB, such as firmware.
25 dnl This is necessary because the target type in autoconf does not
26 dnl describe such a system very well.
28 dnl The current strategy is to use variables with no prefix (such as
29 dnl CC, CFLAGS, etc.) for the host type, variables with prefix "BUILD_"
30 dnl (such as BUILD_CC, BUILD_CFLAGS, etc.) for the build type and variables
31 dnl with the prefix "TARGET_" (such as TARGET_CC, TARGET_CFLAGS, etc.) are
32 dnl used for the target type. See INSTALL for full list of variables.
34 AC_INIT([GRUB],[2.03],[bug-grub@gnu.org])
36 AC_CONFIG_AUX_DIR([build-aux])
38 # We don't want -g -O2 by default in CFLAGS
41 # Checks for build, host and target systems.
44 save_program_prefix="${program_prefix}"
46 program_prefix="${save_program_prefix}"
48 AM_INIT_AUTOMAKE([1.10.1])
50 AC_CONFIG_SRCDIR([include/grub/dl.h])
51 AC_CONFIG_HEADER([config-util.h])
53 # Program name transformations
55 grub_TRANSFORM([grub-bios-setup])
56 grub_TRANSFORM([grub-editenv])
57 grub_TRANSFORM([grub-install])
58 grub_TRANSFORM([grub-mkconfig])
59 grub_TRANSFORM([grub-mkfont])
60 grub_TRANSFORM([grub-mkimage])
61 grub_TRANSFORM([grub-glue-efi])
62 grub_TRANSFORM([grub-mklayout])
63 grub_TRANSFORM([grub-mkpasswd-pbkdf2])
64 grub_TRANSFORM([grub-mkrelpath])
65 grub_TRANSFORM([grub-mkrescue])
66 grub_TRANSFORM([grub-probe])
67 grub_TRANSFORM([grub-reboot])
68 grub_TRANSFORM([grub-script-check])
69 grub_TRANSFORM([grub-set-default])
70 grub_TRANSFORM([grub-sparc64-setup])
71 grub_TRANSFORM([grub-render-label])
72 grub_TRANSFORM([grub-file])
74 # Optimization flag. Allow user to override.
75 if test "x$TARGET_CFLAGS" = x; then
76 TARGET_CFLAGS="$TARGET_CFLAGS -Os"
79 # Default HOST_CPPFLAGS
80 HOST_CPPFLAGS="$HOST_CPPFLAGS -Wall -W"
81 HOST_CPPFLAGS="$HOST_CPPFLAGS -DGRUB_UTIL=1"
83 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -Wall -W"
86 i[[3456]]86) target_cpu=i386 ;;
87 amd64) target_cpu=x86_64 ;;
88 sparc) target_cpu=sparc64 ;;
91 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_CPU_MIPSEL=1"
95 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_CPU_MIPS=1"
105 # Specify the platform (such as firmware).
106 AC_ARG_WITH([platform],
107 AS_HELP_STRING([--with-platform=PLATFORM],
108 [select the host platform [[guessed]]]))
110 # Guess the platform if not specified.
111 if test "x$with_platform" = x; then
112 case "$target_cpu"-"$target_vendor" in
113 i386-apple) platform=efi ;;
114 i386-*) platform=pc ;;
115 x86_64-apple) platform=efi ;;
116 x86_64-*) platform=pc ;;
117 powerpc-*) platform=ieee1275 ;;
118 powerpc64-*) platform=ieee1275 ;;
119 powerpc64le-*) platform=ieee1275 ;;
120 sparc64-*) platform=ieee1275 ;;
121 mipsel-*) platform=loongson ;;
122 mips-*) platform=arc ;;
123 ia64-*) platform=efi ;;
124 arm-*) platform=uboot ;;
125 arm64-*) platform=efi ;;
127 AC_MSG_WARN([unsupported CPU: "$target_cpu" - only building utilities])
132 platform="$with_platform"
135 case "$target_cpu"-"$platform" in
140 x86_64-*) target_cpu=i386 ;;
141 powerpc64-ieee1275) target_cpu=powerpc ;;
142 powerpc64le-ieee1275) target_cpu=powerpc ;;
145 # Check if the platform is supported, make final adjustments.
146 case "$target_cpu"-"$platform" in
154 i386-linuxbios) platform=coreboot ;;
161 mips-qemu-mips) platform=qemu_mips;;
165 mipsel-qemu-mips) platform=qemu_mips;;
166 mipsel-yeeloong) platform=loongson ;;
167 mipsel-fuloong) platform=loongson ;;
175 *) AC_MSG_ERROR([platform "$platform" is not supported for target CPU "$target_cpu"]) ;;
178 if test x$platform != xemu ; then
179 case "$target_cpu" in
180 i386 | powerpc) target_m32=1 ;;
181 x86_64 | sparc64) target_m64=1 ;;
185 if test x"$target_cpu-$platform" = xsparc64-emu ; then
190 windows* | mingw32*) target_os=cygwin ;;
193 # This normalizes the names, and creates a new variable ("host_kernel")
194 # while at it, since the mapping is not always 1:1 (e.g. different OSes
195 # using the same kernel type).
197 gnu*) host_kernel=hurd ;;
198 linux*) host_kernel=linux ;;
199 freebsd* | kfreebsd*-gnu) host_kernel=kfreebsd ;;
200 netbsd*) host_kernel=netbsd ;;
201 solaris*) host_kernel=illumos ;;
202 darwin*) host_kernel=xnu ;;
203 cygwin | windows* | mingw32*) host_kernel=windows ;;
207 cygwin | windows* | mingw32*) have_exec=n ;;
208 aros*) have_exec=n ;;
213 coreboot) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_COREBOOT=1" ;;
214 multiboot) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MULTIBOOT=1" ;;
215 efi) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_EFI=1" ;;
216 xen) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_XEN=1" ;;
217 ieee1275) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_IEEE1275=1" ;;
218 uboot) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_UBOOT=1" ;;
219 qemu) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_QEMU=1" ;;
220 pc) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_PCBIOS=1" ;;
221 emu) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_EMU=1" ;;
222 loongson) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS_LOONGSON=1" ;;
223 qemu_mips) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS_QEMU_MIPS=1" ;;
224 arc) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_ARC=1" ;;
226 if test x${target_cpu} = xmipsel ; then
227 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE=`echo mips_$platform | sed y,abcdefghijklmnopqrstuvwxyz,ABCDEFGHIJKLMNOPQRSTUVWXYZ,`"
229 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE=`echo ${target_cpu}_$platform | sed y,abcdefghijklmnopqrstuvwxyz,ABCDEFGHIJKLMNOPQRSTUVWXYZ,`"
232 case "${target_cpu}-$platform" in
234 TARGET_LINK_ADDR=0x88200000
235 TARGET_DECOMPRESSOR_LINK_ADDR=0x88100000
238 TARGET_LINK_ADDR=0x80700000
239 TARGET_DECOMPRESSOR_LINK_ADDR=0x80600000
241 mips*-qemu_mips | mips*-loongson)
242 TARGET_DECOMPRESSOR_LINK_ADDR=0x80100000
246 AC_SUBST(TARGET_LINK_ADDR)
247 AC_SUBST(TARGET_DECOMPRESSOR_LINK_ADDR)
249 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $machine_CPPFLAGS"
253 AC_SUBST(host_kernel)
258 # Define default variables
261 AC_ARG_WITH([bootdir],
262 AS_HELP_STRING([--with-bootdir=DIR],
263 [set the name of /boot directory [[guessed]]]),
264 [have_with_bootdir=y],
265 [have_with_bootdir=n])
266 if test x$have_with_bootdir = xy; then
267 bootdirname="$with_bootdir"
271 # Because /boot is used for the boot block in NetBSD and OpenBSD,
273 *) bootdirname='boot' ;;
277 AC_SUBST(bootdirname)
278 AC_DEFINE_UNQUOTED(GRUB_BOOT_DIR_NAME, "$bootdirname",
279 [Default boot directory name]")
281 AC_ARG_WITH([grubdir],
282 AS_HELP_STRING([--with-grubdir=DIR],
283 [set the name of grub directory [[guessed]]]),
284 [grubdirname="$with_grubdir"],
285 [grubdirname="$PACKAGE"])
287 AC_SUBST(grubdirname)
288 AC_DEFINE_UNQUOTED(GRUB_DIR_NAME, "$grubdirname",
289 [Default grub directory name])
292 # Checks for build programs.
295 # Although cmp is listed in the GNU Coding Standards as a command which
296 # can used directly, OpenBSD lacks cmp in the default installation.
297 AC_CHECK_PROGS([CMP], [cmp])
298 if test "x$CMP" = x; then
299 AC_MSG_ERROR([cmp is not found])
302 AC_CHECK_PROGS([YACC], [bison])
303 if test "x$YACC" = x; then
304 AC_MSG_ERROR([bison is not found])
316 if test "x$LEX" = "x:"; then
317 AC_MSG_ERROR([flex is not found])
319 version=`$LEX --version | $AWK '{ split($2,x,"."); print x[[1]]*10000+x[[2]]*100+x[[3]]; }'`
320 if test -n "$version" -a "$version" -ge 20535; then
323 AC_MSG_ERROR([flex is too old. GRUB requires 2.5.35 or above])
327 # These are not a "must".
328 AC_PATH_PROGS(MAKEINFO, makeinfo true)
331 # Checks for host programs.
341 test "x$GCC" = xyes || AC_MSG_ERROR([GCC is required])
343 AC_CHECK_PROG(HAVE_CXX, $CXX, yes, no)
346 AM_GNU_GETTEXT([external])
349 # Identify characteristics of the host architecture.
350 unset ac_cv_c_bigendian
352 if test x"$target_cpu-$platform" = xsparc64-emu ; then
353 CFLAGS="$CFLAGS -m64"
354 HOST_CFLAGS="$HOST_CFLAGS -m64"
357 CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=64"
358 HOST_CPPFLAGS="$HOST_CPPFLAGS -D_FILE_OFFSET_BITS=64"
361 AC_CHECK_SIZEOF(void *)
362 AC_CHECK_SIZEOF(long)
365 cygwin | windows* | mingw32*)
366 HOST_CPPFLAGS="$HOST_CPPFLAGS -DUNICODE=1 -D_WIN32_WINNT=0x0500"
367 CPPFLAGS="$CPPFLAGS -DUNICODE=1 -D_WIN32_WINNT=0x0500"
368 AC_CHECK_SIZEOF(TCHAR,,[#include <windows.h>])
373 cygwin | windows* | mingw32* | aros*)
376 AC_CHECK_SIZEOF(off_t)
377 if test x"$ac_cv_sizeof_off_t" != x8 ; then
378 AC_CHECK_SIZEOF(off64_t)
379 test x"$ac_cv_sizeof_off64_t" = x8 || AC_MSG_ERROR([Large file support is required])
383 if test x$USE_NLS = xno; then
384 HOST_CFLAGS="$HOST_CFLAGS -fno-builtin-gettext"
387 if test "x$cross_compiling" = xyes; then
388 AC_MSG_WARN([cannot generate manual pages while cross compiling])
390 AC_PATH_PROG(HELP2MAN, help2man)
393 # Check for functions and headers.
394 AC_CHECK_FUNCS(posix_memalign memalign getextmntent)
395 AC_CHECK_HEADERS(sys/param.h sys/mount.h sys/mnttab.h limits.h)
397 # glibc 2.25 still includes sys/sysmacros.h in sys/types.h but emits deprecation
398 # warning which causes compilation failure later with -Werror. So use -Werror here
399 # as well to force proper sys/sysmacros.h detection.
400 SAVED_CFLAGS="$CFLAGS"
401 CFLAGS="$HOST_CFLAGS -Werror"
403 CFLAGS="$SAVED_CFLAGS"
405 AC_CHECK_MEMBERS([struct statfs.f_fstypename],,,[$ac_includes_default
406 #include <sys/param.h>
407 #include <sys/mount.h>])
409 AC_CHECK_MEMBERS([struct statfs.f_mntfromname],,,[$ac_includes_default
410 #include <sys/param.h>
411 #include <sys/mount.h>])
413 # For opendisk() and getrawpartition() on NetBSD.
414 # Used in util/deviceiter.c and in util/hostdisk.c.
415 AC_CHECK_HEADER([util.h], [
416 AC_CHECK_LIB([util], [opendisk], [
418 AC_DEFINE(HAVE_OPENDISK, 1, [Define if opendisk() in -lutil can be used])
420 AC_CHECK_LIB([util], [getrawpartition], [
422 AC_DEFINE(HAVE_GETRAWPARTITION, 1, [Define if getrawpartition() in -lutil can be used])
427 AC_CACHE_CHECK([whether -Wtrampolines work], [grub_cv_host_cc_wtrampolines], [
428 SAVED_CFLAGS="$CFLAGS"
429 CFLAGS="$HOST_CFLAGS -Wtrampolines -Werror"
430 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
431 int va_arg_func (int fixed, va_list args);]], [[]])],
432 [grub_cv_host_cc_wtrampolines=yes],
433 [grub_cv_host_cc_wtrampolines=no])
434 CFLAGS="$SAVED_CFLAGS"
437 if test x"$grub_host_cv_cc_wtrampolines" = xyes ; then
438 HOST_CFLAGS="$HOST_CFLAGS -Wtrampolines"
442 # Check for host and build compilers.
445 AC_CHECK_PROGS(BUILD_CC, [gcc egcs cc])
446 test -z "$BUILD_CC" && AC_MSG_ERROR([none of gcc, egcs and cc is found. set BUILD_CC manually.])
447 BUILD_CPP="$BUILD_CC -E"
450 haiku*) BUILD_LIBM= ;;
454 dnl FIXME proper test seems to require too deep dive into Autoconf internals.
455 dnl For now just list known platforms that we support.
458 cygwin*|mingw32*|mingw64*) BUILD_EXEEXT=.exe ;;
461 AC_SUBST(BUILD_EXEEXT)
463 # In some build environments like termux /bin/sh is not a valid
464 # shebang. Use $SHELL instead if it's executable and /bin/sh isn't
465 BUILD_SHEBANG=/bin/sh
466 for she in /bin/sh "$SHELL"; do
467 if test -x "$she" ; then
471 AC_SUBST(BUILD_SHEBANG)
476 WARN_FLAGS="-Wall -W -Wshadow -Wpointer-arith -Wundef -Wchar-subscripts -Wcomment -Wdeprecated-declarations -Wdisabled-optimization -Wdiv-by-zero -Wfloat-equal -Wformat-extra-args -Wformat-security -Wformat-y2k -Wimplicit -Wimplicit-function-declaration -Wimplicit-int -Wmain -Wmissing-braces -Wmissing-format-attribute -Wmultichar -Wparentheses -Wreturn-type -Wsequence-point -Wshadow -Wsign-compare -Wswitch -Wtrigraphs -Wunknown-pragmas -Wunused -Wunused-function -Wunused-label -Wunused-parameter -Wunused-value -Wunused-variable -Wwrite-strings -Wnested-externs -Wstrict-prototypes"
477 EXTRA_WARN_FLAGS="-Wextra -Wattributes -Wendif-labels -Winit-self -Wint-to-pointer-cast -Winvalid-pch -Wmissing-field-initializers -Wnonnull -Woverflow -Wvla -Wpointer-to-int-cast -Wstrict-aliasing -Wvariadic-macros -Wvolatile-register-var -Wpointer-sign -Wmissing-include-dirs -Wmissing-prototypes -Wmissing-declarations -Wformat=2"
479 HOST_CFLAGS="$HOST_CFLAGS $WARN_FLAGS -Wcast-align"
481 AC_CACHE_CHECK([which extra warnings work], [grub_cv_cc_w_extra_flags], [
482 SAVED_CFLAGS="$CFLAGS"
483 grub_cv_cc_w_extra_flags=
484 for x in $EXTRA_WARN_FLAGS; do
485 CFLAGS="$HOST_CFLAGS $x -Werror"
486 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])], [flag=1], [flag=0])
487 if test x$flag = x1 ; then
488 grub_cv_cc_w_extra_flags="$grub_cv_cc_w_extra_flags $x"
491 CFLAGS="$SAVED_CFLAGS"
494 HOST_CFLAGS="$HOST_CFLAGS $grub_cv_cc_w_extra_flags"
497 # Check for target programs.
500 # Find tools for the target.
501 if test "x$target_alias" != x && test "x$host_alias" != "x$target_alias"; then
502 tmp_ac_tool_prefix="$ac_tool_prefix"
503 ac_tool_prefix=$target_alias-
505 AC_CHECK_TOOLS(TARGET_CC, [gcc egcs cc],
506 [AC_MSG_ERROR([none of gcc, egcs and cc is found. set TARGET_CC manually.])])
507 AC_CHECK_TOOL(TARGET_OBJCOPY, objcopy)
508 AC_CHECK_TOOL(TARGET_STRIP, strip)
509 AC_CHECK_TOOL(TARGET_NM, nm)
510 AC_CHECK_TOOL(TARGET_RANLIB, ranlib)
512 ac_tool_prefix="$tmp_ac_tool_prefix"
514 if test "x$TARGET_CC" = x; then
517 AC_CHECK_TOOL(TARGET_OBJCOPY, objcopy)
518 AC_CHECK_TOOL(TARGET_STRIP, strip)
519 AC_CHECK_TOOL(TARGET_NM, nm)
520 AC_CHECK_TOOL(TARGET_RANLIB, ranlib)
525 AC_SUBST(BUILD_CFLAGS)
526 AC_SUBST(BUILD_CPPFLAGS)
527 AC_SUBST(BUILD_LDFLAGS)
530 AC_SUBST(TARGET_RANLIB)
531 AC_SUBST(TARGET_STRIP)
532 AC_SUBST(TARGET_OBJCOPY)
534 # Test the C compiler for the target environment.
537 tmp_LDFLAGS="$LDFLAGS"
538 tmp_CPPFLAGS="$CPPFLAGS"
541 CFLAGS="$TARGET_CFLAGS"
542 CPPFLAGS="$TARGET_CPPFLAGS"
543 LDFLAGS="$TARGET_LDFLAGS"
547 TARGET_CFLAGS="$TARGET_CFLAGS $WARN_FLAGS -g -Wredundant-decls -Wmissing-prototypes -Wmissing-declarations"
548 TARGET_CCASFLAGS="$TARGET_CCASFLAGS -g"
550 if test "x$target_cpu" != xi386 && test "x$target_cpu" != xx86_64; then
551 TARGET_CFLAGS="$TARGET_CFLAGS -Wcast-align"
554 TARGET_CC_VERSION="$(LC_ALL=C $TARGET_CC --version | head -n1)"
556 AC_CACHE_CHECK([which extra warnings work], [grub_cv_target_cc_w_extra_flags], [
557 LDFLAGS="$TARGET_LDFLAGS -nostdlib -static"
559 grub_cv_target_cc_w_extra_flags=
560 for x in $EXTRA_WARN_FLAGS; do
561 CFLAGS="$TARGET_CFLAGS $x -Werror"
562 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
563 asm (".globl start; start:");
565 void __main (void) {}
567 ]], [[]])], [flag=1], [flag=0])
568 if test x$flag = x1 ; then
569 grub_cv_target_cc_w_extra_flags="$grub_cv_target_cc_w_extra_flags $x"
574 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_w_extra_flags"
576 AC_CACHE_CHECK([if compiling with clang], [grub_cv_cc_target_clang],
578 CFLAGS="$TARGET_CFLAGS"
580 [AC_LANG_PROGRAM([], [[
585 [grub_cv_cc_target_clang=no], [grub_cv_cc_target_clang=yes])])
587 if test x$target_cpu = xpowerpc -o x$target_cpu = xmips; then
588 AC_CACHE_CHECK([for options to get big-endian compilation], grub_cv_target_cc_big_endian, [
589 grub_cv_target_cc_big_endian=no
590 for cand in "-target $target_cpu -Wl,-EB" "-target $target_cpu" \
591 "-target $target_cpu-linux-gnu -Wl,-EB" "-target $target_cpu-linux-gnu" \
592 "-EB" "-mbig-endian"; do
593 if test x"$grub_cv_target_cc_big_endian" != xno ; then
596 CFLAGS="$TARGET_CFLAGS $cand -Werror"
597 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
598 #if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__ORDER_BIG_ENDIAN__ != __BYTE_ORDER__)
599 #error still little endian
601 asm (".globl start; start:");
602 asm (".globl _start; _start:");
603 asm (".globl __start; __start:");
605 void __main (void) {}
608 [grub_cv_target_cc_big_endian="$cand"], [])
612 if test x"$grub_cv_target_cc_big_endian" = xno ; then
613 AC_MSG_ERROR([could not force big-endian])
616 skip_linkflags="$(echo "$grub_cv_target_cc_big_endian"|sed 's@-Wl,-EB@@')"
618 TARGET_CFLAGS="$TARGET_CFLAGS $skip_linkflags"
619 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $skip_linkflags"
620 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $skip_linkflags"
621 TARGET_LDFLAGS="$TARGET_LDFLAGS $grub_cv_target_cc_big_endian"
622 elif test x$target_cpu = xmipsel; then
623 AC_CACHE_CHECK([for options to get little-endian compilation], grub_cv_target_cc_little_endian, [
624 grub_cv_target_cc_little_endian=no
625 for cand in "-target $target_cpu -Wl,-EL" "-target $target_cpu" \
626 "-target $target_cpu-linux-gnu -Wl,-EL" "-target $target_cpu-linux-gnu" \
628 if test x"$grub_cv_target_cc_little_endian" != xno ; then
631 CFLAGS="$TARGET_CFLAGS $cand -Werror"
632 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
633 #if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__ORDER_BIG_ENDIAN__ == __BYTE_ORDER__)
634 #error still big endian
636 asm (".globl start; start:");
637 asm (".globl _start; _start:");
638 asm (".globl __start; __start:");
640 void __main (void) {}
643 [grub_cv_target_cc_little_endian="$cand"], [])
647 if test x"$grub_cv_target_cc_little_endian" = xno ; then
648 AC_MSG_ERROR([could not force little-endian])
651 skip_linkflags="$(echo "$grub_cv_target_cc_little_endian"|sed 's@-Wl,-EL@@')"
653 TARGET_CFLAGS="$TARGET_CFLAGS $skip_linkflags"
654 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $skip_linkflags"
655 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $skip_linkflags"
656 TARGET_LDFLAGS="$TARGET_LDFLAGS $grub_cv_target_cc_little_endian"
659 # GRUB code is N32-compliant but it's experimental and we would prefer to
660 # avoid having too much variety when it doesn't result in any real improvement.
661 # Moreover N64 isn't supported.
662 if test "x$target_cpu" = xmips || test "x$target_cpu" = xmipsel ; then
663 AC_CACHE_CHECK([for options to force MIPS o32 ABI], grub_cv_target_cc_mips_o32_abi, [
664 grub_cv_target_cc_mips_o32_abi=no
665 for arg in "" "-mabi=32" "-target $target_cpu -mabi=32" ; do
666 if test x"$grub_cv_target_cc_mips_o32_abi" != xno ; then
669 CFLAGS="$TARGET_CFLAGS $arg -Werror"
670 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
671 #if !defined(_ABIO32) || !defined(_MIPS_SIM) || (_MIPS_SIM != _ABIO32)
674 asm (".globl start; start:");
675 asm (".globl _start; _start:");
676 asm (".globl __start; __start:");
678 void __main (void) {}
681 [grub_cv_target_cc_mips_o32_abi="$arg"], [])
685 if test x"$grub_cv_target_cc_mips_o32_abi" = xno ; then
686 AC_MSG_ERROR([could not force MIPS o32 ABI])
689 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_mips_o32_abi"
690 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $grub_cv_target_cc_mips_o32_abi"
693 AC_CACHE_CHECK([for options to compile assembly], [grub_cv_cc_target_asm_compile], [
695 case "x$target_cpu-$platform" in
705 xpowerpc-* | xsparc64-* | xarm-*)
706 test_program=$target_cpu
709 if test x"$test_program" = x ; then
710 grub_cv_cc_target_asm_compile=
713 for arg in "" "-no-integrated-as"; do
714 cmdline="$TARGET_CC -c -o /dev/null $TARGET_CCASFLAGS $arg $TARGET_CPPFLAGS $srcdir/asm-tests/$test_program.S"
715 echo "Running $cmdline" >&AS_MESSAGE_LOG_FD
716 if $cmdline >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
717 grub_cv_cc_target_asm_compile="$arg"
722 if test x"$found" = xno ; then
723 AC_MSG_ERROR([could not compile assembly])
728 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $grub_cv_cc_target_asm_compile"
730 if test "x$target_cpu" = xi386 && test "x$platform" != xemu; then
731 TARGET_CFLAGS="$TARGET_CFLAGS -march=i386"
734 if test "x$target_m32" = x1; then
736 TARGET_CFLAGS="$TARGET_CFLAGS -m32"
737 TARGET_CCASFLAGS="$TARGET_CCASFLAGS -m32"
738 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -m32"
739 TARGET_LDFLAGS="$TARGET_LDFLAGS -m32"
740 TARGET_MODULE_FORMAT="elf32"
743 if test "x$target_m64" = x1; then
745 TARGET_CFLAGS="$TARGET_CFLAGS -m64"
746 TARGET_CCASFLAGS="$TARGET_CCASFLAGS -m64"
747 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -m64"
748 TARGET_LDFLAGS="$TARGET_LDFLAGS -m64"
749 TARGET_MODULE_FORMAT="elf64"
752 if test "x$grub_cv_cc_target_clang" = xno && test "x$target_cpu" = xi386 && test "x$platform" != xemu && test "x$platform" != xefi; then
753 TARGET_CFLAGS="$TARGET_CFLAGS -mrtd -mregparm=3"
756 # on mips redirect cache flushing function to non-existant one.
757 if test "x$target_cpu" = xmips || test "x$target_cpu" = xmipsel ; then
758 AC_CACHE_CHECK([whether -mflush-func=grub_red_herring works], [grub_cv_cc_mflush_func], [
759 CFLAGS="$TARGET_CFLAGS -mflush-func=grub_red_herring -Werror"
760 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
761 [grub_cv_cc_mflush_func=yes],
762 [grub_cv_cc_mflush_func=no])
765 if test "x$grub_cv_cc_mflush_func" = xyes; then
766 TARGET_CFLAGS="$TARGET_CFLAGS -mflush-func=grub_red_herring"
771 # Force no alignment to save space on i386.
772 if test "x$target_cpu" = xi386; then
773 AC_CACHE_CHECK([whether -falign-loops works], [grub_cv_cc_falign_loop], [
774 CFLAGS="$TARGET_CFLAGS -falign-loops=1 -Werror"
775 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
776 [grub_cv_cc_falign_loop=yes],
777 [grub_cv_cc_falign_loop=no])
780 AC_CACHE_CHECK([whether -malign-loops works], [grub_cv_cc_malign_loop], [
781 CFLAGS="$TARGET_CFLAGS -malign-loops=1 -Werror"
782 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
783 [grub_cv_cc_malign_loop=yes],
784 [grub_cv_cc_malign_loop=no])
787 if test "x$grub_cv_cc_falign_loop" = xyes; then
788 TARGET_CFLAGS="$TARGET_CFLAGS -falign-jumps=1 -falign-loops=1 -falign-functions=1"
789 elif test "x$grub_cv_cc_malign_loop" = xyes; then
790 TARGET_CFLAGS="$TARGET_CFLAGS -malign-jumps=1 -malign-loops=1 -malign-functions=1"
794 AC_CACHE_CHECK([whether -freg-struct-return works], [grub_cv_cc_freg_struct_return], [
795 CFLAGS="$TARGET_CFLAGS -freg-struct-return -Werror"
796 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
797 [grub_cv_cc_freg_struct_return=yes],
798 [grub_cv_cc_freg_struct_return=no])
801 if test "x$grub_cv_cc_freg_struct_return" = xyes; then
802 TARGET_CFLAGS="$TARGET_CFLAGS -freg-struct-return"
805 if ( test "x$target_cpu" = xi386 || test "x$target_cpu" = xx86_64 ) && test "x$platform" != xemu; then
806 # Some toolchains enable these features by default, but they need
807 # registers that aren't set up properly in GRUB.
808 TARGET_CFLAGS="$TARGET_CFLAGS -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow"
811 # GRUB doesn't use float or doubles at all. Yet some toolchains may decide
812 # that floats are a good fit to run instead of what's written in the code.
813 # Given that floating point unit is disabled (if present to begin with)
814 # when GRUB is running which may result in various hard crashes.
815 if test x"$platform" != xemu ; then
816 AC_CACHE_CHECK([for options to get soft-float], grub_cv_target_cc_soft_float, [
817 grub_cv_target_cc_soft_float=no
818 if test "x$target_cpu" = xarm64; then
819 CFLAGS="$TARGET_CFLAGS -mgeneral-regs-only -Werror"
820 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
821 [grub_cv_target_cc_soft_float="-mgeneral-regs-only"], [])
823 if test "x$target_cpu" = xia64; then
824 CFLAGS="$TARGET_CFLAGS -mno-inline-float-divide -mno-inline-sqrt -Werror"
825 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
826 [grub_cv_target_cc_soft_float="-mno-inline-float-divide -mno-inline-sqrt"], [])
828 for cand in "-msoft-float -Xclang -msoft-float -Xclang -no-implicit-float" \
829 "-Xclang -msoft-float -Xclang -no-implicit-float" \
830 "-Xclang -msoft-float" "-msoft-float"; do
831 if test x"$grub_cv_target_cc_soft_float" != xno ; then
834 CFLAGS="$TARGET_CFLAGS $cand -Werror"
835 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
836 [grub_cv_target_cc_soft_float="$cand"], [])
840 if test x"$grub_cv_target_cc_soft_float" = xno ; then
841 AC_MSG_ERROR([could not force soft-float])
844 case x"$grub_cv_target_cc_soft_float" in
846 # A trick so that clang doesn't see it on link stаge
847 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $grub_cv_target_cc_soft_float"
850 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_soft_float"
853 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $grub_cv_target_cc_soft_float"
857 if test x"$target_cpu" = xsparc64 ; then
858 AC_CACHE_CHECK([for options to reserve application registers], grub_cv_target_cc_mno_app_regs, [
859 grub_cv_target_cc_mno_app_regs=no
860 for cand in "-mllvm -sparc-reserve-app-registers" \
862 if test x"$grub_cv_target_cc_mno_app_regs" != xno ; then
865 CFLAGS="$TARGET_CFLAGS $cand -Werror"
866 CPPFLAGS="$TARGET_CPPFLAGS"
867 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
868 [grub_cv_target_cc_mno_app_regs="$cand"], [])
872 if test x"$grub_cv_target_cc_mno_app_regs" = xno ; then
873 AC_MSG_ERROR([could not reserve application registers])
875 if test x"$grub_cv_target_cc_mno_app_regs" = x"-mllvm -sparc-reserve-app-registers" ; then
876 # A trick so that clang doesn't see it on link stаge
877 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $grub_cv_target_cc_mno_app_regs"
879 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_mno_app_regs"
882 AC_CACHE_CHECK([for no-relax options], grub_cv_target_cc_mno_relax, [
883 grub_cv_target_cc_mno_relax=no
884 for cand in "-mno-relax" "-Wl,--no-relax"; do
885 if test x"$grub_cv_target_cc_mno_relax" != xno ; then
888 LDFLAGS="$TARGET_LDFLAGS $cand -nostdlib -static"
889 CFLAGS="$TARGET_CFLAGS -Werror"
890 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
891 asm (".globl start; start:");
893 void __main (void) {}
895 ]], [[]])], [grub_cv_target_cc_mno_relax="$cand"], [])
898 LDFLAGS="$TARGET_LDFLAGS"
899 CFLAGS="$TARGET_CFLAGS"
901 if test x"$grub_cv_target_cc_mno_relax" = xno ; then
902 AC_MSG_ERROR([could not find no-relax options])
904 TARGET_LDFLAGS="$TARGET_LDFLAGS $grub_cv_target_cc_mno_relax"
907 # By default, GCC 4.4 generates .eh_frame sections containing unwind
908 # information in some cases where it previously did not. GRUB doesn't need
909 # these and they just use up vital space. Restore the old compiler
911 AC_CACHE_CHECK([whether -fno-dwarf2-cfi-asm works], [grub_cv_cc_fno_dwarf2_cfi_asm], [
912 CFLAGS="$TARGET_CFLAGS -fno-dwarf2-cfi-asm"
913 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
914 [grub_cv_cc_fno_dwarf2_cfi_asm=yes],
915 [grub_cv_cc_fno_dwarf2_cfi_asm=no])
918 if test "x$grub_cv_cc_fno_dwarf2_cfi_asm" = xyes; then
919 TARGET_CFLAGS="$TARGET_CFLAGS -fno-dwarf2-cfi-asm"
922 if test x"$target_os" = xcygwin; then
923 AC_CACHE_CHECK([whether option -fno-reorder-functions works], grub_cv_cc_no_reorder_functions, [
924 CFLAGS="$TARGET_CFLAGS -fno-reorder-functions"
925 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
926 [grub_cv_cc_no_reorder_functions=yes],
927 [grub_cv_cc_no_reorder_functions=no])
931 if test x"$target_os" = xcygwin && test "x$grub_cv_cc_no_reorder_functions" = xyes; then
932 TARGET_CFLAGS="$TARGET_CFLAGS -fno-reorder-functions"
935 AC_CACHE_CHECK([whether -mno-stack-arg-probe works], [grub_cv_cc_mno_stack_arg_probe], [
936 CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
937 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
938 [grub_cv_cc_mno_stack_arg_probe=yes],
939 [grub_cv_cc_mno_stack_arg_probe=no])
942 if test "x$grub_cv_cc_mno_stack_arg_probe" = xyes; then
943 TARGET_CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
947 # By default, GCC 4.6 generates .eh_frame sections containing unwind
948 # information in some cases where it previously did not. GRUB doesn't need
949 # these and they just use up vital space. Restore the old compiler
951 AC_CACHE_CHECK([whether -fno-asynchronous-unwind-tables works], [grub_cv_cc_fno_asynchronous_unwind_tables], [
952 CFLAGS="$TARGET_CFLAGS -fno-asynchronous-unwind-tables"
953 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
954 [grub_cv_cc_fno_asynchronous_unwind_tables=yes],
955 [grub_cv_cc_fno_asynchronous_unwind_tables=no])
958 if test "x$grub_cv_cc_fno_asynchronous_unwind_tables" = xyes; then
959 TARGET_CFLAGS="$TARGET_CFLAGS -fno-asynchronous-unwind-tables"
962 AC_CACHE_CHECK([whether -fno-unwind-tables works], [grub_cv_cc_fno_unwind_tables], [
963 CFLAGS="$TARGET_CFLAGS -fno-unwind-tables"
964 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
965 [grub_cv_cc_fno_unwind_tables=yes],
966 [grub_cv_cc_fno_unwind_tables=no])
969 if test "x$grub_cv_cc_fno_unwind_tables" = xyes; then
970 TARGET_CFLAGS="$TARGET_CFLAGS -fno-unwind-tables"
974 CFLAGS="$TARGET_CFLAGS"
977 if test x"$platform" = xemu ; then
979 grub_cv_target_cc_link_format=
982 grub_cv_target_cc_link_format="-arch,${target_cpu}"
983 TARGET_LDFLAGS="$TARGET_LDFLAGS -Wl,$grub_cv_target_cc_link_format"
985 *windows* | *cygwin* | *mingw*)
986 if test x${target_cpu} = xi386 ; then
987 grub_cv_target_cc_link_format=-mi386pe
988 TARGET_OBJ2ELF='./build-grub-pe2elf$(BUILD_EXEEXT)'
990 if test x${target_cpu} = xx86_64 ; then
991 grub_cv_target_cc_link_format=-mi386pep
992 TARGET_OBJ2ELF='./build-grub-pep2elf$(BUILD_EXEEXT)'
994 TARGET_LDFLAGS="$TARGET_LDFLAGS -Wl,$grub_cv_target_cc_link_format"
997 elif test x"$target_cpu" = xi386 || test x"$target_cpu" = xx86_64; then
998 AC_CACHE_CHECK([for target linking format], [grub_cv_target_cc_link_format], [
999 grub_cv_target_cc_link_format=unknown
1000 for format in -melf_${target_cpu} -melf_${target_cpu}_fbsd -melf_${target_cpu}_obsd -melf_${target_cpu}_haiku -mi386pe -mi386pep -arch,${target_cpu}; do
1001 if test x${target_cpu} != xi386 && test x$format = x-mi386pe; then
1004 if test x${target_cpu} != xx86_64 && test x$format = x-mi386pep; then
1007 CFLAGS="$TARGET_CFLAGS"
1008 LDFLAGS="$TARGET_LDFLAGS -Wl,$format -nostdlib -static"
1009 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
1010 asm (".globl start; start:");
1011 asm (".globl _start; _start:");
1012 asm (".globl __start; __start:");
1014 void __main (void) {}
1015 ]], [[]])], [flag=1], [flag=0])
1016 if test x"$flag" = x1; then
1017 grub_cv_target_cc_link_format="$format"
1021 if test x"$grub_cv_target_cc_link_format" = xunknown; then
1022 AC_MSG_ERROR([no suitable link format found])
1024 TARGET_LDFLAGS="$TARGET_LDFLAGS -Wl,$grub_cv_target_cc_link_format"
1025 if test x"$grub_cv_target_cc_link_format" = x-mi386pe ; then
1026 TARGET_OBJ2ELF='./build-grub-pe2elf$(BUILD_EXEEXT)'
1028 if test x"$grub_cv_target_cc_link_format" = x-mi386pep ; then
1029 TARGET_OBJ2ELF='./build-grub-pep2elf$(BUILD_EXEEXT)'
1033 if test x$grub_cv_target_cc_link_format = x-arch,i386 || test x$grub_cv_target_cc_link_format = x-arch,x86_64; then
1034 TARGET_APPLE_LINKER=1
1035 AC_CHECK_PROG([TARGET_OBJCONV], [objconv], [objconv], [])
1036 if test "x$TARGET_OBJCONV" = x ; then
1037 AC_CHECK_PROG([TARGET_OBJCONV], [objconv], [./objconv], [], [.])
1039 if test "x$TARGET_OBJCONV" = x ; then
1040 AC_MSG_ERROR([objconv not found which is required when building with apple compiler])
1042 TARGET_IMG_LDSCRIPT=
1043 TARGET_IMG_CFLAGS="-static"
1044 TARGET_IMG_LDFLAGS='-nostdlib -static -Wl,-preload -Wl,-segalign,20'
1045 TARGET_IMG_LDFLAGS_AC='-nostdlib -static -Wl,-preload -Wl,-segalign,20'
1046 TARGET_IMG_BASE_LDOPT="-Wl,-image_base"
1047 TARGET_LDFLAGS_OLDMAGIC=""
1048 elif test x$grub_cv_target_cc_link_format = x-mi386pe || test x$grub_cv_target_cc_link_format = x-mi386pep ; then
1049 TARGET_APPLE_LINKER=0
1050 TARGET_LDFLAGS_OLDMAGIC="-Wl,-N"
1051 TARGET_IMG_LDSCRIPT='$(top_srcdir)'"/${grub_coredir}/conf/i386-cygwin-img-ld.sc"
1052 TARGET_IMG_LDFLAGS="-Wl,-T${TARGET_IMG_LDSCRIPT}"
1053 TARGET_IMG_LDFLAGS_AC="-Wl,-T${srcdir}/${grub_coredir}/conf/i386-cygwin-img-ld.sc"
1054 TARGET_IMG_BASE_LDOPT="-Wl,-Ttext"
1057 TARGET_APPLE_LINKER=0
1058 TARGET_LDFLAGS_OLDMAGIC="-Wl,-N"
1059 TARGET_IMG_LDSCRIPT=
1060 TARGET_IMG_LDFLAGS='-Wl,-N'
1061 TARGET_IMG_LDFLAGS_AC='-Wl,-N'
1062 TARGET_IMG_BASE_LDOPT="-Wl,-Ttext"
1066 CFLAGS="$TARGET_CFLAGS"
1068 AC_ARG_ENABLE([efiemu],
1069 [AS_HELP_STRING([--enable-efiemu],
1070 [build and install the efiemu runtimes (default=guessed)])])
1071 if test x"$enable_efiemu" = xno ; then
1072 efiemu_excuse="explicitly disabled"
1075 if test x"$grub_cv_target_cc_link_format" = x-mi386pe || test x"$grub_cv_target_cc_link_format" = x-mi386pep ; then
1076 efiemu_excuse="not available on cygwin"
1078 if test x"$target_cpu" != xi386 ; then
1079 efiemu_excuse="only available on i386"
1081 if test x"$platform" = xefi ; then
1082 efiemu_excuse="not available on efi"
1085 if test x"$efiemu_excuse" = x ; then
1086 AC_CACHE_CHECK([whether options required for efiemu work], grub_cv_cc_efiemu, [
1087 CFLAGS="-m64 -nostdlib -O2 -mcmodel=large -mno-red-zone"
1088 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1089 [grub_cv_cc_efiemu=yes],
1090 [grub_cv_cc_efiemu=no])
1092 if test x$grub_cv_cc_efiemu = xno; then
1093 efiemu_excuse="cannot compile with -m64 -mcmodel=large -mno-red-zone -nostdlib"
1096 if test x"$efiemu_excuse" = x ; then
1097 AC_CACHE_CHECK([for efiemu64 linking format], [grub_cv_target_cc_efiemu64_link_format], [
1098 grub_cv_target_cc_efiemu64_link_format=unknown
1099 for format in -melf_x86_64 -melf_x86_64_fbsd -melf_x86_64_obsd -melf_x86_64_haiku -arch,x86_64; do
1100 CFLAGS="-m64 -nostdlib -O2 -mcmodel=large -mno-red-zone"
1101 LDFLAGS="-m64 -Wl,$format -nostdlib -static"
1102 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
1103 asm (".globl start; start:");
1104 asm (".globl _start; _start:");
1105 asm (".globl __start; __start:");
1107 void __main (void) {}
1108 ]], [[]])], [flag=1], [flag=0])
1109 if test x"$flag" = x1; then
1110 grub_cv_target_cc_efiemu64_link_format="$format"
1114 if test x"$grub_cv_target_cc_efiemu64_link_format" = xunknown; then
1115 efiemu_excuse="no suitable link format for efiemu64 found"
1117 EFIEMU64_LINK_FORMAT="-Wl,$grub_cv_target_cc_efiemu64_link_format"
1120 if test x"$enable_efiemu" = xyes && test x"$efiemu_excuse" != x ; then
1121 AC_MSG_ERROR([efiemu runtime was explicitly requested but can't be compiled ($efiemu_excuse)])
1123 if test x"$efiemu_excuse" = x ; then
1128 AC_SUBST([enable_efiemu])
1129 AC_SUBST([EFIEMU64_LINK_FORMAT])
1131 CFLAGS="$TARGET_CFLAGS"
1133 AC_SUBST(TARGET_LDFLAGS_OLDMAGIC)
1136 LDFLAGS="$TARGET_LDFLAGS"
1138 if test "$target_cpu" = x86_64 || test "$target_cpu" = sparc64 ; then
1139 # Use large model to support 4G memory
1140 AC_CACHE_CHECK([whether option -mcmodel=large works], grub_cv_cc_mcmodel, [
1141 CFLAGS="$TARGET_CFLAGS -mcmodel=large"
1142 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1143 [grub_cv_cc_mcmodel=yes],
1144 [grub_cv_cc_mcmodel=no])
1146 if test "x$grub_cv_cc_mcmodel" = xyes; then
1147 TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=large"
1148 elif test "$target_cpu" = sparc64; then
1149 TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=medany"
1153 if test "$target_cpu"-"$platform" = x86_64-efi; then
1154 # EFI writes to stack below %rsp, we must not use the red zone
1155 AC_CACHE_CHECK([whether option -mno-red-zone works], grub_cv_cc_no_red_zone, [
1156 CFLAGS="$TARGET_CFLAGS -mno-red-zone"
1157 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1158 [grub_cv_cc_no_red_zone=yes],
1159 [grub_cv_cc_no_red_zone=no])
1161 if test "x$grub_cv_cc_no_red_zone" = xno; then
1162 AC_MSG_ERROR([-mno-red-zone not supported, upgrade your gcc])
1165 TARGET_CFLAGS="$TARGET_CFLAGS -mno-red-zone"
1168 if test "x$target_cpu" = xarm; then
1169 AC_CACHE_CHECK([for options to disable movt and movw], grub_cv_target_cc_mno_movt, [
1170 grub_cv_target_cc_mno_movt=no
1171 for cand in "-mno-movt" \
1172 "-mllvm -arm-use-movt=0"; do
1173 if test x"$grub_cv_target_cc_mno_movt" != xno ; then
1176 CFLAGS="$TARGET_CFLAGS $cand -Werror"
1177 CPPFLAGS="$TARGET_CPPFLAGS"
1178 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1179 [grub_cv_target_cc_mno_movt="$cand"], [])
1183 if test x"$grub_cv_target_cc_mno_movt" != xno ; then
1184 # A trick so that clang doesn't see it on link stage
1185 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $grub_cv_target_cc_mno_movt"
1187 AC_CACHE_CHECK([whether option -mthumb-interwork works], grub_cv_cc_mthumb_interwork, [
1188 CFLAGS="$TARGET_CFLAGS -mthumb-interwork -Werror"
1189 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1190 [grub_cv_cc_mthumb_interwork=yes],
1191 [grub_cv_cc_mthumb_interwork=no])
1193 if test "x$grub_cv_cc_mthumb_interwork" = xyes; then
1194 TARGET_CFLAGS="$TARGET_CFLAGS -mthumb-interwork"
1195 # Clang defaults to thumb interworking
1196 elif test "x$grub_cv_cc_target_clang" = xno ; then
1197 AC_MSG_ERROR([your compiler doesn't support -mthumb-interwork])
1201 AC_CACHE_CHECK([whether option -Qn works], grub_cv_target_cc_qn, [
1202 CFLAGS="$TARGET_CFLAGS -Qn -Werror"
1203 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1204 [grub_cv_target_cc_qn=yes],
1205 [grub_cv_target_cc_qn=no])])
1206 if test "x$grub_cv_target_cc_qn" = xyes; then
1207 TARGET_CFLAGS="$TARGET_CFLAGS -Qn"
1211 # Compiler features.
1214 CFLAGS="$TARGET_CFLAGS"
1216 # Position independent executable.
1219 grub_CHECK_NO_PIE_ONEWORD
1221 [# Need that, because some distributions ship compilers that include
1222 # `-fPIE' or '-fpie' and '-pie' in the default specs.
1223 if [ x"$pie_possible" = xyes ]; then
1224 TARGET_CFLAGS="$TARGET_CFLAGS -fno-PIE -fno-pie"
1227 if [ x"$link_nopie_needed" = xyes ] || [ x"$pie_possible" = xyes ]; then
1228 if [ x"$nopie_possible" = xyes ]; then
1229 TARGET_LDFLAGS="$TARGET_LDFLAGS -no-pie"
1231 if [ x"$nopie_oneword_possible" = xyes ]; then
1232 TARGET_LDFLAGS="$TARGET_LDFLAGS -nopie"
1236 CFLAGS="$TARGET_CFLAGS"
1237 LDFLAGS="$TARGET_LDFLAGS"
1239 # Position independent executable.
1241 [# On most platforms we don't want PIC as it only makes relocations harder
1242 # and code less efficient. On mips we want to have one got table per module
1243 # and reload $gp in every function.
1244 # GCC implements it using symbol __gnu_local_gp in non-PIC as well.
1245 # However with clang we need PIC for this reloading to happen.
1246 # With arm64 we need relocations that are in some way representable in
1247 # PE as we need to support arm64-efi. Without -fPIC clang generates
1248 # movk's which aren't representable.
1249 # Since default varies across dictributions use either -fPIC or -fno-PIC
1251 if ( test x$target_cpu = xmips || test x$target_cpu = xmipsel || test x$target_cpu = xarm64 ) && test "x$grub_cv_cc_target_clang" = xyes ; then
1252 TARGET_CFLAGS="$TARGET_CFLAGS -fPIC"
1253 elif [ x"$pic_possible" = xyes ]; then
1254 TARGET_CFLAGS="$TARGET_CFLAGS -fno-PIC"
1257 CFLAGS="$TARGET_CFLAGS"
1259 # Smashing stack protector.
1260 grub_CHECK_STACK_PROTECTOR
1261 # Need that, because some distributions ship compilers that include
1262 # `-fstack-protector' in the default specs.
1263 if test "x$ssp_possible" = xyes; then
1264 TARGET_CFLAGS="$TARGET_CFLAGS -fno-stack-protector"
1267 CFLAGS="$TARGET_CFLAGS"
1269 grub_CHECK_STACK_ARG_PROBE
1270 # Cygwin's GCC uses alloca() to probe the stackframe on static
1271 # stack allocations above some threshold.
1272 if test x"$sap_possible" = xyes; then
1273 TARGET_CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
1276 CFLAGS="$TARGET_CFLAGS"
1278 # -mno-unaligned-access -mstrict-align
1279 if test "$target_cpu" = arm; then
1280 AC_CACHE_CHECK([for compile options to get strict alignment], [grub_cv_target_cc_strict_align], [
1281 grub_cv_target_cc_strict_align=
1282 for arg in -mno-unaligned-access "-Xclang -mstrict-align" -mstrict-align; do
1283 CFLAGS="$TARGET_CFLAGS $arg -Werror"
1284 LDFLAGS="$TARGET_LDFLAGS"
1285 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], [flag=1], [flag=0])
1286 if test x"$flag" = x1; then
1287 grub_cv_target_cc_strict_align="$arg"
1292 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_strict_align"
1293 if test x"$grub_cv_target_cc_strict_align" = x"-Xclang -mstrict-align"; then
1294 TARGET_LDFLAGS="$TARGET_LDFLAGS -Qunused-arguments"
1296 AC_CACHE_CHECK([if compiler generates unaligned accesses], [grub_cv_cc_target_emits_unaligned],
1297 [CFLAGS="$TARGET_CFLAGS"
1298 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
1299 #ifdef __ARM_FEATURE_UNALIGNED
1303 [grub_cv_cc_target_emits_unaligned=no], [grub_cv_cc_target_emits_unaligned=yes])])
1304 if test x$grub_cv_cc_target_emits_unaligned = xyes; then
1305 AC_MSG_ERROR([compiler generates unaligned accesses])
1309 # Set them to their new values for the tests below.
1311 if test x"$platform" = xemu ; then
1312 CFLAGS="$TARGET_CFLAGS -Wno-error"
1313 elif test "x$TARGET_APPLE_LINKER" = x1 ; then
1314 CFLAGS="$TARGET_CFLAGS -nostdlib -static -Wno-error"
1316 CFLAGS="$TARGET_CFLAGS -nostdlib -Wno-error"
1318 CPPFLAGS="$TARGET_CPPFLAGS"
1321 if test "x$TARGET_APPLE_LINKER" = x0 && test x"$platform" != xemu; then
1322 if test x$grub_cv_asm_uscore = xyes; then
1323 DEFSYM="-Wl,--defsym,_abort=_main -Wl,--defsym,__main=_main"
1325 DEFSYM="-Wl,--defsym,abort=main -Wl,--defsym,_main=main -Wl,--defsym,__main=main"
1327 CFLAGS="$TARGET_CFLAGS -nostdlib $DEFSYM"
1330 # Check for libgcc symbols
1331 if test x"$platform" = xemu; then
1332 AC_CHECK_FUNCS(__udivsi3 __umodsi3 __divsi3 __modsi3 __divdi3 __moddi3 __udivdi3 __umoddi3 __ctzdi2 __ctzsi2 __aeabi_uidiv __aeabi_uidivmod __aeabi_idiv __aeabi_idivmod __aeabi_ulcmp __muldi3 __aeabi_lmul __aeabi_memcpy __aeabi_memcpy4 __aeabi_memcpy8 __aeabi_memclr __aeabi_memclr4 __aeabi_memclr8 __aeabi_memset __aeabi_lasr __aeabi_llsl __aeabi_llsr _restgpr_14_x __ucmpdi2 __ashldi3 __ashrdi3 __lshrdi3 __bswapsi2 __bswapdi2 __bzero __register_frame_info __deregister_frame_info ___chkstk_ms __chkstk_ms)
1335 if test "x$TARGET_APPLE_LINKER" = x1 ; then
1336 CFLAGS="$TARGET_CFLAGS -nostdlib -static"
1338 CFLAGS="$TARGET_CFLAGS -nostdlib"
1342 # Defined in aclocal.m4.
1344 if test "x$TARGET_APPLE_LINKER" != x1 ; then
1345 grub_PROG_OBJCOPY_ABSOLUTE
1347 grub_PROG_LD_BUILD_ID_NONE
1348 if test "x$target_cpu" = xi386; then
1349 if test "$platform" != emu && test "x$TARGET_APPLE_LINKER" != x1 ; then
1350 if test ! -z "$TARGET_IMG_LDSCRIPT"; then
1351 # Check symbols provided by linker script.
1352 CFLAGS="$TARGET_CFLAGS -nostdlib ${TARGET_IMG_LDFLAGS_AC} ${TARGET_IMG_BASE_LDOPT},0x8000"
1354 grub_CHECK_BSS_START_SYMBOL
1355 grub_CHECK_END_SYMBOL
1357 CFLAGS="$TARGET_CFLAGS"
1361 grub_PROG_NM_MINUS_P
1362 grub_PROG_NM_DEFINED_ONLY
1363 AC_SUBST(TARGET_NMFLAGS_MINUS_P)
1364 AC_SUBST(TARGET_NMFLAGS_DEFINED_ONLY)
1366 if test "$platform" != emu; then
1367 AC_CACHE_CHECK([whether -nostdinc -isystem works], [grub_cv_cc_isystem], [
1368 SAVED_CPPFLAGS="$CPPFLAGS"
1369 CPPFLAGS="$TARGET_CPPFLAGS -nostdinc -isystem `$TARGET_CC -print-file-name=include`"
1370 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
1372 int va_arg_func (int fixed, va_list args);]], [[]])],
1373 [grub_cv_cc_isystem=yes],
1374 [grub_cv_cc_isystem=no])
1375 CPPFLAGS="$SAVED_CPPFLAGS"
1378 if test x"$grub_cv_cc_isystem" = xyes ; then
1379 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -nostdinc -isystem `$TARGET_CC -print-file-name=include`"
1383 AC_CACHE_CHECK([whether -Wtrampolines work], [grub_cv_cc_wtrampolines], [
1384 CFLAGS="$TARGET_CFLAGS -Wtrampolines -Werror"
1385 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
1386 int va_arg_func (int fixed, va_list args);]], [[]])],
1387 [grub_cv_cc_wtrampolines=yes],
1388 [grub_cv_cc_wtrampolines=no])
1391 if test x"$grub_cv_cc_wtrampolines" = xyes ; then
1392 TARGET_CFLAGS="$TARGET_CFLAGS -Wtrampolines"
1395 # Restore the flags.
1397 CFLAGS="$tmp_CFLAGS"
1398 CPPFLAGS="$tmp_CPPFLAGS"
1399 LDFLAGS="$tmp_LDFLAGS"
1403 # Check for options.
1406 # Memory manager debugging.
1407 AC_ARG_ENABLE([mm-debug],
1408 AS_HELP_STRING([--enable-mm-debug],
1409 [include memory manager debugging]),
1410 [AC_DEFINE([MM_DEBUG], [1],
1411 [Define to 1 if you enable memory manager debugging.])])
1413 AC_ARG_ENABLE([cache-stats],
1414 AS_HELP_STRING([--enable-cache-stats],
1415 [enable disk cache statistics collection]))
1417 if test x$enable_cache_stats = xyes; then
1422 AC_SUBST([DISK_CACHE_STATS])
1424 AC_ARG_ENABLE([boot-time],
1425 AS_HELP_STRING([--enable-boot-time],
1426 [enable boot time statistics collection]))
1428 if test x$enable_boot_time = xyes; then
1433 AC_SUBST([BOOT_TIME_STATS])
1435 AC_ARG_ENABLE([grub-emu-sdl],
1436 [AS_HELP_STRING([--enable-grub-emu-sdl],
1437 [build and install the `grub-emu' debugging utility with SDL support (default=guessed)])])
1439 AC_ARG_ENABLE([grub-emu-pci],
1440 [AS_HELP_STRING([--enable-grub-emu-pci],
1441 [build and install the `grub-emu' debugging utility with PCI support (potentially dangerous) (default=no)])])
1443 if test "$platform" = emu; then
1445 if test x"$enable_grub_emu_sdl" = xno ; then
1446 grub_emu_sdl_excuse="explicitly disabled"
1448 [if [ x"$grub_emu_sdl_excuse" = x ]; then
1449 # Check for libSDL libraries.]
1450 AC_CHECK_LIB([SDL], [SDL_Init], [LIBSDL="-lSDL"],
1451 [grub_emu_sdl_excuse=["libSDL libraries are required to build \`grub-emu' with SDL support"]])
1455 [if [ x"$grub_emu_sdl_excuse" = x ]; then
1456 # Check for headers.]
1457 AC_CHECK_HEADERS([SDL/SDL.h], [],
1458 [grub_emu_sdl_excuse=["libSDL header file is required to build \`grub-emu' with SDL support"]])
1461 if test x"enable_grub_emu_sdl" = xyes && test x"$grub_emu_sdl_excuse" != x ; then
1462 AC_MSG_ERROR([SDL support for grub-emu was explicitly requested but can't be compiled ($grub_emu_sdl_excuse)])
1464 if test x"$grub_emu_sdl_excuse" = x ; then
1465 enable_grub_emu_sdl=yes
1467 enable_grub_emu_sdl=no
1470 if test x"$enable_grub_emu_pci" != xyes ; then
1471 grub_emu_pci_excuse="not enabled"
1474 [if [ x"$grub_emu_pci_excuse" = x ]; then
1475 # Check for libpci libraries.]
1476 AC_CHECK_LIB([pciaccess], [pci_system_init], [LIBPCIACCESS="-lpciaccess"],
1477 [grub_emu_pci_excuse=["need libpciaccess library"]])
1478 AC_SUBST([LIBPCIACCESS])
1480 [if [ x"$grub_emu_pci_excuse" = x ]; then
1481 # Check for headers.]
1482 AC_CHECK_HEADERS([pciaccess.h], [],
1483 [grub_emu_pci_excuse=["need libpciaccess headers"]])
1486 if test x"$grub_emu_pci_excuse" = x ; then
1487 enable_grub_emu_pci=yes
1490 enable_grub_emu_pci=no
1493 AC_SUBST([enable_grub_emu_sdl])
1494 AC_SUBST([enable_grub_emu_pci])
1498 # Ignore --enable-emu-* if platform is not emu
1499 enable_grub_emu_sdl=no
1500 enable_grub_emu_pci=no
1503 AC_ARG_ENABLE([grub-mkfont],
1504 [AS_HELP_STRING([--enable-grub-mkfont],
1505 [build and install the `grub-mkfont' utility (default=guessed)])])
1506 if test x"$enable_grub_mkfont" = xno ; then
1507 grub_mkfont_excuse="explicitly disabled"
1510 if test x"$grub_mkfont_excuse" = x ; then
1511 # Check for freetype libraries.
1512 AC_CHECK_TOOLS([FREETYPE], [freetype-config])
1513 if test "x$FREETYPE" = x ; then
1514 grub_mkfont_excuse=["need freetype2 library"]
1518 unset ac_cv_header_ft2build_h
1520 if test x"$grub_mkfont_excuse" = x ; then
1521 # Check for freetype libraries.
1522 freetype_cflags=`$FREETYPE --cflags`
1523 freetype_libs=`$FREETYPE --libs`
1524 SAVED_CPPFLAGS="$CPPFLAGS"
1526 CPPFLAGS="$CPPFLAGS $freetype_cflags"
1527 LIBS="$LIBS $freetype_libs"
1528 AC_CHECK_HEADERS([ft2build.h], [],
1529 [grub_mkfont_excuse=["need freetype2 headers"]])
1530 AC_LINK_IFELSE([AC_LANG_CALL([], [FT_Load_Glyph])], [], [grub_mkfont_excuse=["freetype2 library unusable"]])
1531 CPPFLAGS="$SAVED_CPPFLAGS"
1535 if test x"$enable_grub_mkfont" = xyes && test x"$grub_mkfont_excuse" != x ; then
1536 AC_MSG_ERROR([grub-mkfont was explicitly requested but can't be compiled ($grub_mkfont_excuse)])
1538 if test x"$grub_mkfont_excuse" = x ; then
1539 enable_grub_mkfont=yes
1541 enable_grub_mkfont=no
1543 AC_SUBST([enable_grub_mkfont])
1544 AC_SUBST([freetype_cflags])
1545 AC_SUBST([freetype_libs])
1549 SAVED_CFLAGS="$CFLAGS"
1550 SAVED_CPPFLAGS="$CPPFLAGS"
1551 SAVED_LDFLAGS="$LDFLAGS"
1554 CFLAGS="$BUILD_CFLAGS"
1555 CPPFLAGS="$BUILD_CPPFLAGS"
1556 LDFLAGS="$BUILD_LDFAGS"
1558 unset ac_cv_c_bigendian
1559 unset ac_cv_header_ft2build_h
1561 AC_COMPUTE_INT([BUILD_SIZEOF_VOID_P], [sizeof (void *)])
1562 AC_COMPUTE_INT([BUILD_SIZEOF_LONG], [sizeof (long)])
1563 AC_C_BIGENDIAN([BUILD_WORDS_BIGENDIAN=1], [BUILD_WORDS_BIGENDIAN=0], [BUILD_WORDS_BIGENDIAN=err], [BUILD_WORDS_BIGENDIAN=err])
1565 if test x$BUILD_WORDS_BIGENDIAN = xerr ; then
1566 AC_MSG_ERROR([couldnt determine build endianness])
1569 AC_SUBST([BUILD_SIZEOF_LONG])
1570 AC_SUBST([BUILD_SIZEOF_VOID_P])
1571 AC_SUBST([BUILD_WORDS_BIGENDIAN])
1573 if test x"$grub_build_mkfont_excuse" = x ; then
1574 # Check for freetype libraries.
1575 AC_CHECK_PROGS([BUILD_FREETYPE], [freetype-config])
1576 if test "x$BUILD_FREETYPE" = x ; then
1577 grub_build_mkfont_excuse=["need freetype2 library"]
1581 if test x"$grub_build_mkfont_excuse" = x ; then
1582 # Check for freetype libraries.
1583 build_freetype_cflags=`$BUILD_FREETYPE --cflags`
1584 build_freetype_libs=`$BUILD_FREETYPE --libs`
1585 SAVED_CPPFLAGS_2="$CPPFLAGS"
1587 CPPFLAGS="$CPPFLAGS $build_freetype_cflags"
1588 LIBS="$LIBS $build_freetype_libs"
1589 AC_CHECK_HEADERS([ft2build.h], [],
1590 [grub_build_mkfont_excuse=["need freetype2 headers"]])
1591 AC_LINK_IFELSE([AC_LANG_CALL([], [FT_Load_Glyph])], [], [grub_build_mkfont_excuse=["freetype2 library unusable"]])
1593 CPPFLAGS="$SAVED_CPPFLAGS_2"
1596 if test x"$enable_build_grub_mkfont" = xyes && test x"$grub_build_mkfont_excuse" != x ; then
1597 AC_MSG_ERROR([build-grub-mkfont was explicitly requested but can't be compiled ($grub_build_mkfont_excuse)])
1599 if test x"$grub_build_mkfont_excuse" = x ; then
1600 enable_build_grub_mkfont=yes
1602 enable_build_grub_mkfont=no
1604 if test x"$enable_build_grub_mkfont" = xno && ( test "x$platform" = xqemu || test "x$platform" = xloongson || test "x$platform" = xqemu_mips || test "x$platform" = xcoreboot ); then
1605 if test x"$grub_build_mkfont_excuse" = x ; then
1606 AC_MSG_ERROR([qemu, coreboot and loongson ports need build-time grub-mkfont])
1608 AC_MSG_ERROR([qemu, coreboot and loongson ports need build-time grub-mkfont ($grub_build_mkfont_excuse)])
1612 AC_SUBST([build_freetype_cflags])
1613 AC_SUBST([build_freetype_libs])
1617 CFLAGS="$SAVED_CFLAGS"
1618 CPPFLAGS="$SAVED_CPPFLAGS"
1619 LDFLAGS="$SAVED_LDFLAGS"
1626 AC_ARG_ENABLE([grub-themes],
1627 [AS_HELP_STRING([--enable-grub-themes],
1628 [build and install GRUB themes (default=guessed)])])
1629 if test x"$enable_grub_themes" = xno ; then
1630 starfield_excuse="explicitly disabled"
1633 if test x"$starfield_excuse" = x && test x"$enable_build_grub_mkfont" = xno ; then
1634 starfield_excuse="No build-time grub-mkfont"
1637 if test x"$starfield_excuse" = x; then
1638 for ext in pcf pcf.gz bdf bdf.gz ttf ttf.gz; do
1639 for dir in . /usr/src /usr/share/fonts/X11/misc /usr/share/fonts/truetype/ttf-dejavu /usr/share/fonts/dejavu /usr/share/fonts/truetype; do
1640 if test -f "$dir/DejaVuSans.$ext"; then
1641 DJVU_FONT_SOURCE="$dir/DejaVuSans.$ext"
1647 if test "x$DJVU_FONT_SOURCE" = x; then
1648 starfield_excuse="No DejaVu found"
1652 if test x"$enable_grub_themes" = xyes && test x"$starfield_excuse" != x; then
1653 AC_MSG_ERROR([themes were explicitly requested but requirements are not satisfied ($starfield_excuse)])
1656 AC_SUBST([DJVU_FONT_SOURCE])
1660 for ext in pcf pcf.gz bdf bdf.gz ttf ttf.gz; do
1661 for dir in . /usr/src /usr/share/fonts/X11/misc /usr/share/fonts/unifont /usr/share/fonts/uni /usr/share/fonts/truetype/unifont /usr/share/fonts/misc; do
1662 if test -f "$dir/unifont.$ext"; then
1663 md5="$(md5sum "$dir/unifont.$ext"|awk '{ print $1; }')"
1664 # PCF and BDF from version 6.3 isn't hanled properly by libfreetype.
1665 if test "$md5" = 0a54834d2788c83886a3e1785a6a1e61 || test "$md5" = 28f2565c7a41d8d407e2551159385edb || test "$md5" = dae5e588461b3b92b87b6ffee734f936 || test "$md5" = 4a3d687aa5bb329ed05f4263a1016791 ; then
1668 FONT_SOURCE="$dir/unifont.$ext"
1674 if test x"$enable_build_grub_mkfont" = xno ; then
1678 if test "x$FONT_SOURCE" = x && ( test "x$platform" = xqemu || test "x$platform" = xloongson || test "x$platform" = xqemu_mips || test "x$platform" = xcoreboot ); then
1679 if test x"$grub_build_mkfont_excuse" = x ; then
1680 AC_MSG_ERROR([qemu, coreboot and loongson ports need unifont])
1682 AC_MSG_ERROR([qemu, coreboot and loongson ports need unifont ($grub_build_mkfont_excuse)])
1686 AC_SUBST([FONT_SOURCE])
1688 if test x"$FONT_SOURCE" = x && test x"$DJVU_FONT_SOURCE" = x && test x"$grub_build_mkfont_excuse" = x; then
1689 grub_build_mkfont_excuse="no fonts"
1693 AC_ARG_ENABLE([grub-mount],
1694 [AS_HELP_STRING([--enable-grub-mount],
1695 [build and install the `grub-mount' utility (default=guessed)])])
1696 if test x"$enable_grub_mount" = xno ; then
1697 grub_mount_excuse="explicitly disabled"
1700 if test x"$grub_mount_excuse" = x ; then
1701 AC_CHECK_LIB([fuse], [fuse_main_real], [],
1702 [grub_mount_excuse="need FUSE library"])
1705 if test x"$grub_mount_excuse" = x ; then
1706 # Check for fuse headers.
1707 SAVED_CPPFLAGS="$CPPFLAGS"
1708 CPPFLAGS="$CPPFLAGS -DFUSE_USE_VERSION=26"
1709 AC_CHECK_HEADERS([fuse/fuse.h], [],
1710 [grub_mount_excuse=["need FUSE headers"]])
1711 CPPFLAGS="$SAVED_CPPFLAGS"
1714 if test x"$enable_grub_mount" = xyes && test x"$grub_mount_excuse" != x ; then
1715 AC_MSG_ERROR([grub-mount was explicitly requested but can't be compiled ($grub_mount_excuse)])
1717 if test x"$grub_mount_excuse" = x ; then
1718 enable_grub_mount=yes
1720 enable_grub_mount=no
1722 AC_SUBST([enable_grub_mount])
1724 AC_ARG_ENABLE([device-mapper],
1725 [AS_HELP_STRING([--enable-device-mapper],
1726 [enable Linux device-mapper support (default=guessed)])])
1727 if test x"$enable_device_mapper" = xno ; then
1728 device_mapper_excuse="explicitly disabled"
1731 if test x"$device_mapper_excuse" = x ; then
1732 # Check for device-mapper header.
1733 AC_CHECK_HEADER([libdevmapper.h], [],
1734 [device_mapper_excuse="need libdevmapper header"])
1737 if test x"$device_mapper_excuse" = x ; then
1738 # Check for device-mapper library.
1739 AC_CHECK_LIB([devmapper], [dm_task_create], [],
1740 [device_mapper_excuse="need devmapper library"])
1743 if test x"$device_mapper_excuse" = x ; then
1744 # Check for device-mapper library.
1745 AC_CHECK_LIB([devmapper], [dm_log_with_errno_init],
1747 [device_mapper_excuse="need devmapper library"])
1750 if test x"$device_mapper_excuse" = x ; then
1751 LIBDEVMAPPER="-ldevmapper"
1752 AC_DEFINE([HAVE_DEVICE_MAPPER], [1],
1753 [Define to 1 if you have the devmapper library.])
1756 AC_SUBST([LIBDEVMAPPER])
1759 if test x$host_kernel = xkfreebsd; then
1760 AC_CHECK_LIB([geom], [geom_gettree], [],
1761 [AC_MSG_ERROR([Your platform requires libgeom])])
1767 AC_ARG_ENABLE([liblzma],
1768 [AS_HELP_STRING([--enable-liblzma],
1769 [enable liblzma integration (default=guessed)])])
1770 if test x"$enable_liblzma" = xno ; then
1771 liblzma_excuse="explicitly disabled"
1774 if test x"$liblzma_excuse" = x ; then
1775 AC_CHECK_LIB([lzma], [lzma_code],
1776 [],[liblzma_excuse="need lzma library"])
1778 if test x"$liblzma_excuse" = x ; then
1779 AC_CHECK_HEADER([lzma.h], [], [liblzma_excuse="need lzma header"])
1782 if test x"$enable_liblzma" = xyes && test x"$liblzma_excuse" != x ; then
1783 AC_MSG_ERROR([liblzma support was explicitly requested but requirements are not satisfied ($liblzma_excuse)])
1787 if test x"$liblzma_excuse" = x ; then
1789 AC_DEFINE([USE_LIBLZMA], [1],
1790 [Define to 1 if you have the LZMA library.])
1795 AC_ARG_ENABLE([libzfs],
1796 [AS_HELP_STRING([--enable-libzfs],
1797 [enable libzfs integration (default=guessed)])])
1798 if test x"$enable_libzfs" = xno ; then
1799 libzfs_excuse="explicitly disabled"
1802 if test x"$libzfs_excuse" = x ; then
1803 # Only check for system headers if libzfs support has not been disabled.
1804 AC_CHECK_HEADERS(libzfs.h libnvpair.h)
1807 if test x"$libzfs_excuse" = x ; then
1808 AC_CHECK_LIB([zfs], [libzfs_init],
1810 [libzfs_excuse="need zfs library"])
1813 if test x"$libzfs_excuse" = x ; then
1814 AC_CHECK_LIB([nvpair], [nvlist_lookup_string],
1816 [libzfs_excuse="need nvpair library"])
1819 if test x"$enable_libzfs" = xyes && test x"$libzfs_excuse" != x ; then
1820 AC_MSG_ERROR([libzfs support was explicitly requested but requirements are not satisfied ($libzfs_excuse)])
1823 if test x"$libzfs_excuse" = x ; then
1824 # We need both libzfs and libnvpair for a successful build.
1826 AC_DEFINE([HAVE_LIBZFS], [1],
1827 [Define to 1 if you have the ZFS library.])
1828 LIBNVPAIR="-lnvpair"
1829 AC_DEFINE([HAVE_LIBNVPAIR], [1],
1830 [Define to 1 if you have the NVPAIR library.])
1834 AC_SUBST([LIBNVPAIR])
1838 AC_SUBST([FONT_SOURCE])
1839 AS_IF([test x$target_cpu = xi386 -a x$platform = xqemu],
1840 [AC_SUBST([GRUB_BOOT_MACHINE_LINK_ADDR], 0xffe00)])
1842 AC_SUBST(HAVE_ASM_USCORE)
1843 AC_SUBST(BSS_START_SYMBOL)
1844 AC_SUBST(END_SYMBOL)
1848 AC_ARG_ENABLE([werror],
1849 [AS_HELP_STRING([--disable-werror],
1850 [do not use -Werror when building GRUB])])
1851 if test x"$enable_werror" != xno ; then
1852 TARGET_CFLAGS="$TARGET_CFLAGS -Werror"
1853 HOST_CFLAGS="$HOST_CFLAGS -Werror"
1856 TARGET_CPP="$TARGET_CC -E"
1857 TARGET_CCAS=$TARGET_CC
1859 # Includes which include make-time substitutions. They must come last
1860 # as to avoid executing top_builddir in shell.
1861 HOST_CPPFLAGS="$HOST_CPPFLAGS -I\$(top_builddir)/include"
1862 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -I\$(top_srcdir)/include"
1863 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -I\$(top_builddir)/include"
1865 GRUB_TARGET_CPU="${target_cpu}"
1866 GRUB_PLATFORM="${platform}"
1868 AC_SUBST(GRUB_TARGET_CPU)
1869 AC_SUBST(GRUB_PLATFORM)
1871 AC_SUBST(TARGET_OBJCONV)
1872 AC_SUBST(TARGET_CPP)
1873 AC_SUBST(TARGET_CCAS)
1874 AC_SUBST(TARGET_OBJ2ELF)
1875 AC_SUBST(TARGET_MODULE_FORMAT)
1876 AC_SUBST(TARGET_CC_VERSION)
1878 AC_SUBST(TARGET_CFLAGS)
1879 AC_SUBST(TARGET_LDFLAGS)
1880 AC_SUBST(TARGET_CPPFLAGS)
1881 AC_SUBST(TARGET_CCASFLAGS)
1883 AC_SUBST(TARGET_IMG_LDFLAGS)
1884 AC_SUBST(TARGET_IMG_CFLAGS)
1885 AC_SUBST(TARGET_IMG_BASE_LDOPT)
1886 AC_SUBST(TARGET_APPLE_LINKER)
1888 AC_SUBST(HOST_CFLAGS)
1889 AC_SUBST(HOST_LDFLAGS)
1890 AC_SUBST(HOST_CPPFLAGS)
1891 AC_SUBST(HOST_CCASFLAGS)
1893 AC_SUBST(BUILD_LIBM)
1896 # Automake conditionals
1899 AM_CONDITIONAL([COND_real_platform], [test x$platform != xnone])
1900 AM_CONDITIONAL([COND_emu], [test x$platform = xemu])
1901 AM_CONDITIONAL([COND_i386_pc], [test x$target_cpu = xi386 -a x$platform = xpc])
1902 AM_CONDITIONAL([COND_i386_efi], [test x$target_cpu = xi386 -a x$platform = xefi])
1903 AM_CONDITIONAL([COND_ia64_efi], [test x$target_cpu = xia64 -a x$platform = xefi])
1904 AM_CONDITIONAL([COND_i386_qemu], [test x$target_cpu = xi386 -a x$platform = xqemu])
1905 AM_CONDITIONAL([COND_i386_ieee1275], [test x$target_cpu = xi386 -a x$platform = xieee1275])
1906 AM_CONDITIONAL([COND_i386_coreboot], [test x$target_cpu = xi386 -a x$platform = xcoreboot])
1907 AM_CONDITIONAL([COND_i386_multiboot], [test x$target_cpu = xi386 -a x$platform = xmultiboot])
1908 AM_CONDITIONAL([COND_x86_64_efi], [test x$target_cpu = xx86_64 -a x$platform = xefi])
1909 AM_CONDITIONAL([COND_i386_xen], [test x$target_cpu = xi386 -a x$platform = xxen])
1910 AM_CONDITIONAL([COND_x86_64_xen], [test x$target_cpu = xx86_64 -a x$platform = xxen])
1911 AM_CONDITIONAL([COND_mips_loongson], [test x$target_cpu = xmipsel -a x$platform = xloongson])
1912 AM_CONDITIONAL([COND_mips_qemu_mips], [test "(" x$target_cpu = xmips -o x$target_cpu = xmipsel ")" -a x$platform = xqemu_mips])
1913 AM_CONDITIONAL([COND_mips_arc], [test "(" x$target_cpu = xmips -o x$target_cpu = xmipsel ")" -a x$platform = xarc])
1914 AM_CONDITIONAL([COND_sparc64_ieee1275], [test x$target_cpu = xsparc64 -a x$platform = xieee1275])
1915 AM_CONDITIONAL([COND_sparc64_emu], [test x$target_cpu = xsparc64 -a x$platform = xemu])
1916 AM_CONDITIONAL([COND_powerpc_ieee1275], [test x$target_cpu = xpowerpc -a x$platform = xieee1275])
1917 AM_CONDITIONAL([COND_mips], [test x$target_cpu = xmips -o x$target_cpu = xmipsel])
1918 AM_CONDITIONAL([COND_mipsel], [test x$target_cpu = xmipsel])
1919 AM_CONDITIONAL([COND_mipseb], [test x$target_cpu = xmips])
1920 AM_CONDITIONAL([COND_arm], [test x$target_cpu = xarm ])
1921 AM_CONDITIONAL([COND_arm_uboot], [test x$target_cpu = xarm -a x$platform = xuboot])
1922 AM_CONDITIONAL([COND_arm_coreboot], [test x$target_cpu = xarm -a x$platform = xcoreboot])
1923 AM_CONDITIONAL([COND_arm_efi], [test x$target_cpu = xarm -a x$platform = xefi])
1924 AM_CONDITIONAL([COND_arm64], [test x$target_cpu = xarm64 ])
1925 AM_CONDITIONAL([COND_arm64_efi], [test x$target_cpu = xarm64 -a x$platform = xefi])
1927 AM_CONDITIONAL([COND_HOST_HURD], [test x$host_kernel = xhurd])
1928 AM_CONDITIONAL([COND_HOST_LINUX], [test x$host_kernel = xlinux])
1929 AM_CONDITIONAL([COND_HOST_NETBSD], [test x$host_kernel = xnetbsd])
1930 AM_CONDITIONAL([COND_HOST_WINDOWS], [test x$host_kernel = xwindows])
1931 AM_CONDITIONAL([COND_HOST_KFREEBSD], [test x$host_kernel = xkfreebsd])
1932 AM_CONDITIONAL([COND_HOST_XNU], [test x$host_kernel = xxnu])
1933 AM_CONDITIONAL([COND_HOST_ILLUMOS], [test x$host_kernel = xillumos])
1935 AM_CONDITIONAL([COND_MAN_PAGES], [test x$cross_compiling = xno -a x$HELP2MAN != x])
1936 AM_CONDITIONAL([COND_GRUB_EMU_SDL], [test x$enable_grub_emu_sdl = xyes])
1937 AM_CONDITIONAL([COND_GRUB_EMU_PCI], [test x$enable_grub_emu_pci = xyes])
1938 AM_CONDITIONAL([COND_GRUB_MKFONT], [test x$enable_grub_mkfont = xyes])
1939 AM_CONDITIONAL([COND_GRUB_MOUNT], [test x$enable_grub_mount = xyes])
1940 AM_CONDITIONAL([COND_HAVE_FONT_SOURCE], [test x$FONT_SOURCE != x])
1941 if test x$FONT_SOURCE != x ; then
1946 AC_SUBST(HAVE_FONT_SOURCE)
1947 AM_CONDITIONAL([COND_APPLE_LINKER], [test x$TARGET_APPLE_LINKER = x1])
1948 AM_CONDITIONAL([COND_ENABLE_EFIEMU], [test x$enable_efiemu = xyes])
1949 AM_CONDITIONAL([COND_ENABLE_CACHE_STATS], [test x$DISK_CACHE_STATS = x1])
1950 AM_CONDITIONAL([COND_ENABLE_BOOT_TIME_STATS], [test x$BOOT_TIME_STATS = x1])
1952 AM_CONDITIONAL([COND_HAVE_CXX], [test x$HAVE_CXX = xyes])
1954 AM_CONDITIONAL([COND_HAVE_ASM_USCORE], [test x$HAVE_ASM_USCORE = x1])
1955 AM_CONDITIONAL([COND_STARFIELD], [test "x$starfield_excuse" = x])
1956 AM_CONDITIONAL([COND_HAVE_EXEC], [test "x$have_exec" = xy])
1958 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
1959 test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
1960 datarootdir="$(eval echo "$datarootdir")"
1961 grub_libdir="$(eval echo "$libdir")"
1962 grub_localedir="$(eval echo "$localedir")"
1963 grub_datadir="$(eval echo "$datadir")"
1964 grub_sysconfdir="$(eval echo "$sysconfdir")"
1965 AC_DEFINE_UNQUOTED(LOCALEDIR, "$grub_localedir", [Locale dir])
1966 AC_DEFINE_UNQUOTED(GRUB_LIBDIR, "$grub_libdir", [Library dir])
1967 AC_DEFINE_UNQUOTED(GRUB_DATADIR, "$grub_datadir", [Data dir])
1968 AC_DEFINE_UNQUOTED(GRUB_SYSCONFDIR, "$grub_sysconfdir", [Configuration dir])
1972 if test "$platform" != none; then
1973 cpudir="${target_cpu}"
1974 if test x${cpudir} = xmipsel; then
1978 if test x"$link_dir" = xyes ; then
1979 AC_CONFIG_LINKS([include/grub/cpu:include/grub/$cpudir])
1980 if test "$platform" != emu ; then
1981 AC_CONFIG_LINKS([include/grub/machine:include/grub/$cpudir/$platform])
1984 mkdir -p include/grub 2>/dev/null
1985 rm -rf include/grub/cpu
1986 cp -rp $srcdir/include/grub/$cpudir include/grub/cpu 2>/dev/null
1987 if test "$platform" != emu ; then
1988 rm -rf include/grub/machine
1989 cp -rp $srcdir/include/grub/$cpudir/$platform include/grub/machine 2>/dev/null
1993 # Just enough to stop the compiler failing with -I$(srcdir)/include.
1994 mkdir -p include 2>/dev/null
1995 rm -rf include/grub/cpu include/grub/machine
1998 AC_CONFIG_FILES([Makefile])
1999 AC_CONFIG_FILES([grub-core/Makefile])
2000 AC_CONFIG_FILES([grub-core/gnulib/Makefile])
2001 AC_CONFIG_FILES([po/Makefile.in])
2002 AC_CONFIG_FILES([docs/Makefile])
2003 AC_CONFIG_FILES([util/bash-completion.d/Makefile])
2004 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
2005 AC_CONFIG_FILES([config.h])
2009 echo "*******************************************************"
2010 echo GRUB2 will be compiled with following components:
2011 echo Platform: "$target_cpu"-"$platform"
2012 if [ x"$platform" = xemu ]; then
2013 if [ x"$grub_emu_sdl_excuse" = x ]; then
2014 echo SDL support for grub-emu: Yes
2016 echo SDL support for grub-emu: No "($grub_emu_sdl_excuse)"
2018 if [ x"$grub_emu_pci_excuse" = x ]; then
2019 echo PCI support for grub-emu: Yes
2021 echo PCI support for grub-emu: No "($grub_emu_pci_excuse)"
2024 if test x"$device_mapper_excuse" = x ; then
2025 echo With devmapper support: Yes
2027 echo With devmapper support: No "($device_mapper_excuse)"
2029 if [ x"$enable_mm_debug" = xyes ]; then
2030 echo With memory debugging: Yes
2032 echo With memory debugging: No
2034 if [ x"$enable_cache_stats" = xyes ]; then
2035 echo With disk cache statistics: Yes
2037 echo With disk cache statistics: No
2040 if [ x"$enable_boot_time" = xyes ]; then
2041 echo With boot time statistics: Yes
2043 echo With boot time statistics: No
2046 if [ x"$efiemu_excuse" = x ]; then
2047 echo efiemu runtime: Yes
2049 echo efiemu runtime: No "($efiemu_excuse)"
2051 if [ x"$grub_mkfont_excuse" = x ]; then
2052 echo grub-mkfont: Yes
2054 echo grub-mkfont: No "($grub_mkfont_excuse)"
2056 if [ x"$grub_mount_excuse" = x ]; then
2057 echo grub-mount: Yes
2059 echo grub-mount: No "($grub_mount_excuse)"
2061 if [ x"$starfield_excuse" = x ]; then
2062 echo starfield theme: Yes
2063 echo With DejaVuSans font from $DJVU_FONT_SOURCE
2065 echo starfield theme: No "($starfield_excuse)"
2067 if [ x"$libzfs_excuse" = x ]; then
2068 echo With libzfs support: Yes
2070 echo With libzfs support: No "($libzfs_excuse)"
2072 if [ x"$grub_build_mkfont_excuse" = x ]; then
2073 echo Build-time grub-mkfont: Yes
2074 if test "x$FONT_SOURCE" = x ; then
2075 echo "Without unifont"
2077 echo "With unifont from $FONT_SOURCE"
2080 echo Build-time grub-mkfont: No "($grub_build_mkfont_excuse)"
2081 echo "Without unifont (no build-time grub-mkfont)"
2083 if test x"$liblzma_excuse" != x ; then
2084 echo "Without liblzma (no support for XZ-compressed mips images) ($liblzma_excuse)"
2086 echo "With liblzma from $LIBLZMA (support for XZ-compressed mips images)"
2088 echo "*******************************************************"