7810e74787
* configure.ac: Fixed a bug caused by the previous cygwin patch, variable `target_platform' should be `platform'.
393 lines
11 KiB
Text
393 lines
11 KiB
Text
# Process this file with autoconf to produce a configure script.
|
|
|
|
# Copyright (C) 2002,2003,2004,2005,2006,2007,2008 Free Software Foundation, Inc.
|
|
#
|
|
# This configure.ac is free software; the author
|
|
# gives unlimited permission to copy and/or distribute it,
|
|
# with or without modifications, as long as this notice is preserved.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
|
|
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
|
|
# PARTICULAR PURPOSE.
|
|
|
|
dnl This configure script is complicated, because GRUB needs to deal
|
|
dnl with three potentially different types:
|
|
dnl
|
|
dnl build -- the environment for building GRUB
|
|
dnl host -- the environment for running utilities
|
|
dnl target -- the environment for running GRUB
|
|
dnl
|
|
dnl In addition, GRUB needs to deal with a platform specification
|
|
dnl which specifies the system running GRUB, such as firmware.
|
|
dnl This is necessary because the target type in autoconf does not
|
|
dnl describe such a system very well.
|
|
dnl
|
|
dnl The current strategy is to use variables with no prefix (such as
|
|
dnl CC, CFLAGS, etc.) for the host type as well as the build type,
|
|
dnl because GRUB does not need to use those variables for the build
|
|
dnl type, so there is no conflict. Variables with the prefix "TARGET_"
|
|
dnl (such as TARGET_CC, TARGET_CFLAGS, etc.) are used for the target
|
|
dnl type.
|
|
|
|
|
|
AC_INIT(GRUB, 1.96, [bug-grub@gnu.org])
|
|
AC_PREREQ(2.53)
|
|
AC_CONFIG_SRCDIR([include/grub/dl.h])
|
|
AC_CONFIG_HEADER([config.h])
|
|
|
|
# Checks for host and target systems.
|
|
AC_CANONICAL_HOST
|
|
AC_CANONICAL_TARGET
|
|
|
|
# Program name transformations
|
|
AC_ARG_PROGRAM
|
|
|
|
case "$host_cpu" in
|
|
powerpc64) host_m32=1 ;;
|
|
esac
|
|
|
|
case "$target_cpu" in
|
|
i[[3456]]86) target_cpu=i386 ;;
|
|
esac
|
|
|
|
# Specify the platform (such as firmware).
|
|
AC_ARG_WITH([platform],
|
|
AS_HELP_STRING([--with-platform=PLATFORM],
|
|
[select the host platform [[guessed]]]))
|
|
|
|
# Guess the platform if not specified.
|
|
if test "x$with_platform" = x; then
|
|
case "$target_cpu"-"$target_vendor" in
|
|
i386-apple) platform=efi ;;
|
|
i386-*) platform=pc ;;
|
|
x86_64-apple) platform=efi ;;
|
|
x86_64-*) platform=pc ;;
|
|
powerpc-*) platform=ieee1275 ;;
|
|
powerpc64-*) platform=ieee1275 ;;
|
|
sparc64-*) platform=ieee1275 ;;
|
|
*) AC_MSG_ERROR([unsupported CPU: "$target_cpu"]) ;;
|
|
esac
|
|
else
|
|
platform="$with_platform"
|
|
fi
|
|
|
|
# Adjust CPU unless target was explicitly specified.
|
|
if test -z "$target_alias"; then
|
|
case "$target_cpu"-"$platform" in
|
|
x86_64-efi) ;;
|
|
x86_64-*) target_cpu=i386 ;;
|
|
powerpc64-ieee1275) target_cpu=powerpc ;;
|
|
esac
|
|
fi
|
|
|
|
# Check if the platform is supported, make final adjustments.
|
|
case "$target_cpu"-"$platform" in
|
|
i386-efi) ;;
|
|
x86_64-efi) ;;
|
|
i386-pc) ;;
|
|
i386-coreboot) ;;
|
|
i386-linuxbios) platform=coreboot ;;
|
|
i386-ieee1275) ;;
|
|
powerpc-ieee1275) ;;
|
|
sparc64-ieee1275) ;;
|
|
*) AC_MSG_ERROR([platform "$platform" is not supported for target CPU "$target_cpu"]) ;;
|
|
esac
|
|
|
|
case "$target_cpu" in
|
|
i386 | powerpc) target_m32=1 ;;
|
|
x86_64 | sparc64) target_m64=1 ;;
|
|
esac
|
|
|
|
AC_SUBST(target_cpu)
|
|
AC_SUBST(platform)
|
|
|
|
#
|
|
# Checks for build programs.
|
|
#
|
|
|
|
# Although cmp is listed in the GNU Coding Standards as a command which
|
|
# can used directly, OpenBSD lacks cmp in the default installation.
|
|
AC_CHECK_PROGS([CMP], [cmp])
|
|
if test "x$CMP" = x; then
|
|
AC_MSG_ERROR([cmp is not found])
|
|
fi
|
|
|
|
AC_CHECK_PROGS([YACC], [bison])
|
|
if test "x$YACC" = x; then
|
|
AC_MSG_ERROR([bison is not found])
|
|
fi
|
|
|
|
for file in /usr/share/unifont/unifont.hex ; do
|
|
if test -e $file ; then
|
|
AC_SUBST([UNIFONT_HEX], [$file])
|
|
break
|
|
fi
|
|
done
|
|
|
|
AC_PROG_INSTALL
|
|
AC_PROG_AWK
|
|
AC_PROG_MAKE_SET
|
|
|
|
# These are not a "must".
|
|
AC_PATH_PROG(RUBY, ruby)
|
|
AC_PATH_PROG(HELP2MAN, help2man)
|
|
|
|
#
|
|
# Checks for host programs.
|
|
#
|
|
|
|
AC_PROG_CC
|
|
# Must be GCC.
|
|
test "x$GCC" = xyes || AC_MSG_ERROR([GCC is required])
|
|
|
|
AC_GNU_SOURCE
|
|
AC_SYS_LARGEFILE
|
|
|
|
# Identify characteristics of the host architecture.
|
|
AC_C_BIGENDIAN
|
|
AC_CHECK_SIZEOF(void *)
|
|
AC_CHECK_SIZEOF(long)
|
|
|
|
if test "x$host_m32" = x1; then
|
|
# Force 32-bit mode.
|
|
CFLAGS="$CFLAGS -m32"
|
|
LDFLAGS="$LDFLAGS -m32"
|
|
fi
|
|
|
|
# Check LZO when compiling for the i386-pc.
|
|
if test "$target_cpu"-"$platform" = i386-pc; then
|
|
AC_ARG_ENABLE([lzo],
|
|
[AS_HELP_STRING([--enable-lzo],
|
|
[use lzo to compress kernel (default is lzma)])])
|
|
[if [ x"$enable_lzo" = xyes ]; then
|
|
# There are three possibilities. LZO version 2 installed with the name
|
|
# liblzo2, with the name liblzo, and LZO version 1.]
|
|
AC_DEFINE([ENABLE_LZO], [1], [Use lzo compression])
|
|
AC_CHECK_LIB([lzo2], [__lzo_init_v2], [LIBLZO="-llzo2"],
|
|
[AC_CHECK_LIB([lzo], [__lzo_init_v2], [LIBLZO="-llzo"],
|
|
[AC_CHECK_LIB([lzo], [__lzo_init2], [LIBLZO="-llzo"],
|
|
[AC_MSG_ERROR([LZO library version 1.02 or later is required])])])])
|
|
AC_SUBST([LIBLZO])
|
|
[LIBS="$LIBS $LIBLZO"]
|
|
AC_CHECK_FUNC([lzo1x_999_compress], ,
|
|
[AC_MSG_ERROR([LZO1X-999 must be enabled])])
|
|
|
|
[# LZO version 2 uses lzo/lzo1x.h, while LZO version 1 uses lzo1x.h.]
|
|
AC_CHECK_HEADERS([lzo/lzo1x.h lzo1x.h])
|
|
[else]
|
|
AC_DEFINE([ENABLE_LZMA], [1], [Use lzma compression])
|
|
[fi]
|
|
AC_SUBST([enable_lzo])
|
|
fi
|
|
|
|
# Check for functions.
|
|
AC_CHECK_FUNCS(posix_memalign memalign)
|
|
|
|
#
|
|
# Check for target programs.
|
|
#
|
|
|
|
|
|
# Use linker script if present, otherwise use builtin -N script.
|
|
AC_MSG_CHECKING([for option to link raw image])
|
|
if test -f "${srcdir}/conf/${target_cpu}-${platform}-${target_os}-img-ld.sc"; then
|
|
TARGET_IMG_LDSCRIPT='$(top_srcdir)'"/conf/${target_cpu}-${platform}-${target_os}-img-ld.sc"
|
|
TARGET_IMG_LDFLAGS="-Wl,-T${TARGET_IMG_LDSCRIPT}"
|
|
TARGET_IMG_LDFLAGS_AC="-Wl,-T${srcdir}/conf/${target_cpu}-${platform}-${target_os}-img-ld.sc"
|
|
else
|
|
TARGET_IMG_LDSCRIPT=
|
|
TARGET_IMG_LDFLAGS='-Wl,-N'
|
|
TARGET_IMG_LDFLAGS_AC='-Wl,-N'
|
|
fi
|
|
AC_SUBST(TARGET_IMG_LDSCRIPT)
|
|
AC_SUBST(TARGET_IMG_LDFLAGS)
|
|
AC_MSG_RESULT([$TARGET_IMG_LDFLAGS_AC])
|
|
|
|
# For platforms where ELF is not the default link format.
|
|
AC_MSG_CHECKING([for command to convert module to ELF format])
|
|
if test "$host_os" = cygwin; then
|
|
TARGET_OBJ2ELF='grub-pe2elf.exe'
|
|
fi
|
|
AC_SUBST(TARGET_OBJ2ELF)
|
|
AC_MSG_RESULT([$TARGET_OBJ2ELF])
|
|
|
|
# For cross-compiling.
|
|
if test "x$target" != "x$host"; then
|
|
# XXX this depends on the implementation of autoconf!
|
|
tmp_ac_tool_prefix="$ac_tool_prefix"
|
|
ac_tool_prefix=$target_alias-
|
|
|
|
AC_CHECK_TOOLS(TARGET_CC, [gcc egcs cc],
|
|
[AC_MSG_ERROR([none of gcc, egcs and cc is found. set TARGET_CC manually.])])
|
|
AC_CHECK_TOOL(OBJCOPY, objcopy)
|
|
AC_CHECK_TOOL(STRIP, strip)
|
|
AC_CHECK_TOOL(NM, nm)
|
|
|
|
ac_tool_prefix="$tmp_ac_tool_prefix"
|
|
else
|
|
if test "x$TARGET_CC" = x; then
|
|
TARGET_CC=$CC
|
|
fi
|
|
AC_CHECK_TOOL(OBJCOPY, objcopy)
|
|
AC_CHECK_TOOL(STRIP, strip)
|
|
AC_CHECK_TOOL(NM, nm)
|
|
fi
|
|
AC_SUBST(TARGET_CC)
|
|
|
|
|
|
# Test the C compiler for the target environment.
|
|
tmp_CC="$CC"
|
|
tmp_CFLAGS="$CFLAGS"
|
|
tmp_LDFLAGS="$LDFLAGS"
|
|
tmp_CPPFLAGS="$CPPFLAGS"
|
|
tmp_LIBS="$LIBS"
|
|
CC="$TARGET_CC"
|
|
CFLAGS="$TARGET_CFLAGS"
|
|
CPPFLAGS="$TARGET_CPPFLAGS"
|
|
LDFLAGS="$TARGET_LDFLAGS"
|
|
LIBS=""
|
|
|
|
if test "x$TARGET_CFLAGS" = x; then
|
|
# debug flags.
|
|
TARGET_CFLAGS="-Wall -W -Wshadow -Wpointer-arith -Wmissing-prototypes \
|
|
-Wundef -Wstrict-prototypes -g"
|
|
|
|
# optimization flags.
|
|
AC_CACHE_CHECK([whether optimization for size works], grub_cv_cc_Os, [
|
|
CFLAGS=-Os
|
|
AC_TRY_COMPILE(, , grub_cv_cc_Os=yes, grub_cv_cc_Os=no)
|
|
])
|
|
if test "x$grub_cv_cc_Os" = xyes; then
|
|
TARGET_CFLAGS="$TARGET_CFLAGS -Os"
|
|
else
|
|
TARGET_CFLAGS="$TARGET_CFLAGS -O2 -fno-strength-reduce -fno-unroll-loops"
|
|
fi
|
|
|
|
# Force no alignment to save space on i386.
|
|
if test "x$target_cpu" = xi386; then
|
|
AC_CACHE_CHECK([whether -falign-loops works], [grub_cv_cc_falign_loop], [
|
|
CFLAGS="-falign-loops=1"
|
|
AC_TRY_COMPILE(, , [grub_cv_cc_falign_loop=yes], [grub_cv_cc_falign_loop=no])
|
|
])
|
|
|
|
if test "x$grub_cv_cc_falign_loop" = xyes; then
|
|
TARGET_CFLAGS="$TARGET_CFLAGS -falign-jumps=1 -falign-loops=1 -falign-functions=1"
|
|
else
|
|
TARGET_CFLAGS="$TARGET_CFLAGS -malign-jumps=1 -malign-loops=1 -malign-functions=1"
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
if test "x$target_m32" = x1; then
|
|
# Force 32-bit mode.
|
|
TARGET_CFLAGS="$TARGET_CFLAGS -m32"
|
|
TARGET_LDFLAGS="$TARGET_LDFLAGS -m32"
|
|
fi
|
|
|
|
if test "x$target_m64" = x1; then
|
|
# Force 64-bit mode.
|
|
TARGET_CFLAGS="$TARGET_CFLAGS -m64"
|
|
TARGET_LDFLAGS="$TARGET_LDFLAGS -m64"
|
|
fi
|
|
|
|
#
|
|
# Compiler features.
|
|
#
|
|
|
|
# Smashing stack protector.
|
|
grub_CHECK_STACK_PROTECTOR
|
|
# Need that, because some distributions ship compilers that include
|
|
# `-fstack-protector' in the default specs.
|
|
if test "x$ssp_possible" = xyes; then
|
|
TARGET_CFLAGS="$TARGET_CFLAGS -fno-stack-protector"
|
|
fi
|
|
grub_CHECK_STACK_ARG_PROBE
|
|
# Cygwin's GCC uses alloca() to probe the stackframe on static
|
|
# stack allocations above some threshold.
|
|
if test x"$sap_possible" = xyes; then
|
|
TARGET_CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
|
|
fi
|
|
|
|
AC_SUBST(TARGET_CFLAGS)
|
|
AC_SUBST(TARGET_CPPFLAGS)
|
|
AC_SUBST(TARGET_LDFLAGS)
|
|
AC_SUBST(MODULE_LDFLAGS)
|
|
|
|
# Set them to their new values for the tests below.
|
|
CC="$TARGET_CC"
|
|
CFLAGS="$TARGET_CFLAGS"
|
|
CPPFLAGS="$TARGET_CPPFLAGS"
|
|
LDFLAGS="$TARGET_LDFLAGS"
|
|
|
|
# Defined in aclocal.m4.
|
|
grub_PROG_TARGET_CC
|
|
grub_PROG_OBJCOPY_ABSOLUTE
|
|
grub_PROG_LD_BUILD_ID_NONE
|
|
grub_ASM_USCORE
|
|
if test "x$target_cpu" = xi386; then
|
|
if test ! -z "$TARGET_IMG_LDSCRIPT"; then
|
|
# Check symbols provided by linker script.
|
|
CFLAGS="$TARGET_CFLAGS -nostdlib $TARGET_IMG_LDFLAGS_AC -Wl,-Ttext,8000,--defsym,___main=0x8100"
|
|
fi
|
|
if test "x$platform" = xpc; then
|
|
grub_CHECK_START_SYMBOL
|
|
grub_CHECK_BSS_START_SYMBOL
|
|
grub_CHECK_END_SYMBOL
|
|
fi
|
|
CFLAGS="$TARGET_CFLAGS"
|
|
grub_I386_ASM_PREFIX_REQUIREMENT
|
|
grub_I386_ASM_ADDR32
|
|
grub_I386_ASM_ABSOLUTE_WITHOUT_ASTERISK
|
|
grub_I386_CHECK_REGPARM_BUG
|
|
else
|
|
AC_DEFINE([NESTED_FUNC_ATTR], [], [Catch gcc bug])
|
|
fi
|
|
|
|
# Restore the flags.
|
|
CC="$tmp_CC"
|
|
CFLAGS="$tmp_CFLAGS"
|
|
CPPFLAGS="$tmp_CPPFLAGS"
|
|
LDFLAGS="$tmp_LDFLAGS"
|
|
LIBS="$tmp_LIBS"
|
|
|
|
#
|
|
# Check for options.
|
|
#
|
|
|
|
# Memory manager debugging.
|
|
AC_ARG_ENABLE([mm-debug],
|
|
AS_HELP_STRING([--enable-mm-debug],
|
|
[include memory manager debugging]),
|
|
[AC_DEFINE([MM_DEBUG], [1],
|
|
[Define to 1 if you enable memory manager debugging.])])
|
|
|
|
AC_ARG_ENABLE([grub-emu],
|
|
[AS_HELP_STRING([--enable-grub-emu],
|
|
[build and install the `grub-emu' debugging utility])])
|
|
[if [ x"$enable_grub_emu" = xyes ]; then
|
|
# Check for curses libraries.]
|
|
AC_CHECK_LIB([ncurses], [wgetch], [LIBCURSES="-lncurses"],
|
|
[AC_CHECK_LIB([curses], [wgetch], [LIBCURSES="-lcurses"],
|
|
[AC_MSG_ERROR([(n)curses libraries are required to build `grub-emu'])])])
|
|
AC_SUBST([LIBCURSES])
|
|
|
|
[# Check for headers.]
|
|
AC_CHECK_HEADERS([ncurses/curses.h], [],
|
|
[AC_CHECK_HEADERS([ncurses.h], [],
|
|
[AC_CHECK_HEADERS([curses.h], [],
|
|
[AC_MSG_ERROR([(n)curses header files are required to build `grub-emu'])])])])
|
|
[fi]
|
|
AC_SUBST([enable_grub_emu])
|
|
|
|
AC_ARG_ENABLE([grub-fstest],
|
|
[AS_HELP_STRING([--enable-grub-fstest],
|
|
[build and install the `grub-fstest' debugging utility])])
|
|
AC_SUBST([enable_grub_fstest])
|
|
|
|
# Output files.
|
|
AC_CONFIG_LINKS([include/grub/cpu:include/grub/$target_cpu
|
|
include/grub/machine:include/grub/$target_cpu/$platform])
|
|
AC_CONFIG_FILES([Makefile gensymlist.sh genkernsyms.sh])
|
|
AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
|
|
AC_OUTPUT
|