534 lines
16 KiB
Text
534 lines
16 KiB
Text
# Process this file with autoconf to produce a configure script.
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# Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009 Free Software Foundation, Inc.
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#
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# This configure.ac is free software; the author
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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# PARTICULAR PURPOSE.
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dnl This configure script is complicated, because GRUB needs to deal
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dnl with three potentially different types:
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dnl
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dnl build -- the environment for building GRUB
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dnl host -- the environment for running utilities
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dnl target -- the environment for running GRUB
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dnl
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dnl In addition, GRUB needs to deal with a platform specification
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dnl which specifies the system running GRUB, such as firmware.
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dnl This is necessary because the target type in autoconf does not
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dnl describe such a system very well.
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dnl
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dnl The current strategy is to use variables with no prefix (such as
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dnl CC, CFLAGS, etc.) for the host type as well as the build type,
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dnl because GRUB does not need to use those variables for the build
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dnl type, so there is no conflict. Variables with the prefix "TARGET_"
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dnl (such as TARGET_CC, TARGET_CFLAGS, etc.) are used for the target
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dnl type.
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AC_INIT([GRUB],[1.96],[bug-grub@gnu.org])
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AC_PREREQ(2.59)
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AC_CONFIG_SRCDIR([include/grub/dl.h])
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AC_CONFIG_HEADER([config.h])
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# Checks for host and target systems.
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AC_CANONICAL_HOST
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AC_CANONICAL_TARGET
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# Program name transformations
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AC_ARG_PROGRAM
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case "$target_cpu" in
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i[[3456]]86) target_cpu=i386 ;;
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sparc) target_cpu=sparc64 ;;
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esac
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# Specify the platform (such as firmware).
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AC_ARG_WITH([platform],
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AS_HELP_STRING([--with-platform=PLATFORM],
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[select the host platform [[guessed]]]))
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# Guess the platform if not specified.
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if test "x$with_platform" = x; then
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case "$target_cpu"-"$target_vendor" in
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i386-apple) platform=efi ;;
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i386-*) platform=pc ;;
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x86_64-apple) platform=efi ;;
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x86_64-*) platform=pc ;;
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powerpc-*) platform=ieee1275 ;;
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powerpc64-*) platform=ieee1275 ;;
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sparc64-*) platform=ieee1275 ;;
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*) AC_MSG_ERROR([unsupported CPU: "$target_cpu"]) ;;
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esac
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else
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platform="$with_platform"
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fi
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# Adjust CPU unless target was explicitly specified.
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if test -z "$target_alias"; then
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case "$target_cpu"-"$platform" in
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x86_64-efi) ;;
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x86_64-*) target_cpu=i386 ;;
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powerpc64-ieee1275) target_cpu=powerpc ;;
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esac
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fi
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# Check if the platform is supported, make final adjustments.
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case "$target_cpu"-"$platform" in
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i386-efi) ;;
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x86_64-efi) ;;
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i386-pc) ;;
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i386-coreboot) ;;
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i386-linuxbios) platform=coreboot ;;
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i386-ieee1275) ;;
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i386-qemu) ;;
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powerpc-ieee1275) ;;
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sparc64-ieee1275) ;;
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*) AC_MSG_ERROR([platform "$platform" is not supported for target CPU "$target_cpu"]) ;;
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esac
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case "$target_cpu" in
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i386 | powerpc) target_m32=1 ;;
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x86_64 | sparc64) target_m64=1 ;;
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esac
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case "$host_os" in
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mingw32) host_os=cygwin ;;
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esac
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# This normalizes the names, and creates a new variable ("host_kernel")
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# while at it, since the mapping is not always 1:1 (e.g. different OSes
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# using the same kernel type).
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case "$host_os" in
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gnu*) host_kernel=hurd ;;
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linux*) host_kernel=linux ;;
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freebsd* | kfreebsd*-gnu) host_kernel=freebsd ;;
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cygwin) host_kernel=windows ;;
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esac
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AC_SUBST(host_cpu)
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AC_SUBST(host_os)
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AC_SUBST(host_kernel)
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AC_SUBST(target_cpu)
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AC_SUBST(platform)
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#
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# Checks for build programs.
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#
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# Although cmp is listed in the GNU Coding Standards as a command which
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# can used directly, OpenBSD lacks cmp in the default installation.
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AC_CHECK_PROGS([CMP], [cmp])
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if test "x$CMP" = x; then
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AC_MSG_ERROR([cmp is not found])
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fi
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AC_CHECK_PROGS([YACC], [bison])
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if test "x$YACC" = x; then
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AC_MSG_ERROR([bison is not found])
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fi
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for file in /usr/src/unifont.bdf ; do
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if test -e $file ; then
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AC_SUBST([UNIFONT_BDF], [$file])
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break
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fi
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done
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AC_PROG_INSTALL
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AC_PROG_AWK
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AC_PROG_MAKE_SET
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# These are not a "must".
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AC_PATH_PROG(RUBY, ruby)
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AC_PATH_PROG(HELP2MAN, help2man)
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#
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# Checks for host programs.
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#
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AC_PROG_CC
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# Must be GCC.
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test "x$GCC" = xyes || AC_MSG_ERROR([GCC is required])
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AC_GNU_SOURCE
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AC_SYS_LARGEFILE
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# Identify characteristics of the host architecture.
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AC_C_BIGENDIAN
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AC_CHECK_SIZEOF(void *)
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AC_CHECK_SIZEOF(long)
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grub_apple_cc
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if test x$grub_cv_apple_cc = xyes ; then
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CFLAGS="$CFLAGS -DAPPLE_CC=1 -fnested-functions"
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ASFLAGS="$ASFLAGS -DAPPLE_CC=1"
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fi
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# Check LZO when compiling for the i386-pc.
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if test "$target_cpu"-"$platform" = i386-pc; then
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AC_ARG_ENABLE([lzo],
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[AS_HELP_STRING([--enable-lzo],
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[use lzo to compress kernel (default is lzma)])])
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[if [ x"$enable_lzo" = xyes ]; then
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# There are three possibilities. LZO version 2 installed with the name
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# liblzo2, with the name liblzo, and LZO version 1.]
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AC_DEFINE([ENABLE_LZO], [1], [Use lzo compression])
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AC_CHECK_LIB([lzo2], [__lzo_init_v2], [LIBLZO="-llzo2"],
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[AC_CHECK_LIB([lzo], [__lzo_init_v2], [LIBLZO="-llzo"],
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[AC_CHECK_LIB([lzo], [__lzo_init2], [LIBLZO="-llzo"],
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[AC_MSG_ERROR([LZO library version 1.02 or later is required])])])])
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AC_SUBST([LIBLZO])
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[LIBS="$LIBS $LIBLZO"]
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AC_CHECK_FUNC([lzo1x_999_compress], ,
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[AC_MSG_ERROR([LZO1X-999 must be enabled])])
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[# LZO version 2 uses lzo/lzo1x.h, while LZO version 1 uses lzo1x.h.]
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AC_CHECK_HEADERS([lzo/lzo1x.h lzo1x.h])
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[else]
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AC_DEFINE([ENABLE_LZMA], [1], [Use lzma compression])
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[fi]
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AC_SUBST([enable_lzo])
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fi
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# Check for functions.
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AC_CHECK_FUNCS(posix_memalign memalign asprintf)
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#
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# Check for target programs.
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#
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# Find tools for the target.
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if test "x$target_alias" != x && test "x$host_alias" != "x$target_alias"; then
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tmp_ac_tool_prefix="$ac_tool_prefix"
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ac_tool_prefix=$target_alias-
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AC_CHECK_TOOLS(TARGET_CC, [gcc egcs cc],
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[AC_MSG_ERROR([none of gcc, egcs and cc is found. set TARGET_CC manually.])])
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AC_CHECK_TOOL(OBJCOPY, objcopy)
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AC_CHECK_TOOL(STRIP, strip)
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AC_CHECK_TOOL(NM, nm)
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ac_tool_prefix="$tmp_ac_tool_prefix"
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else
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if test "x$TARGET_CC" = x; then
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TARGET_CC=$CC
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fi
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AC_CHECK_TOOL(OBJCOPY, objcopy)
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AC_CHECK_TOOL(STRIP, strip)
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AC_CHECK_TOOL(NM, nm)
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fi
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AC_SUBST(TARGET_CC)
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# Test the C compiler for the target environment.
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tmp_CC="$CC"
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tmp_CFLAGS="$CFLAGS"
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tmp_LDFLAGS="$LDFLAGS"
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tmp_CPPFLAGS="$CPPFLAGS"
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tmp_LIBS="$LIBS"
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CC="$TARGET_CC"
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CFLAGS="$TARGET_CFLAGS"
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CPPFLAGS="$TARGET_CPPFLAGS"
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LDFLAGS="$TARGET_LDFLAGS"
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LIBS=""
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if test "x$TARGET_CFLAGS" = x; then
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# debug flags.
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TARGET_CFLAGS="-Wall -W -Wshadow -Wpointer-arith -Wmissing-prototypes \
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-Wundef -Wstrict-prototypes -g"
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# optimization flags.
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AC_CACHE_CHECK([whether optimization for size works], grub_cv_cc_Os, [
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CFLAGS=-Os
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_Os=yes],
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[grub_cv_cc_Os=no])
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])
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if test "x$grub_cv_cc_Os" = xyes; then
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TARGET_CFLAGS="$TARGET_CFLAGS -Os"
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else
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TARGET_CFLAGS="$TARGET_CFLAGS -O2 -fno-strength-reduce -fno-unroll-loops"
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fi
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# Force no alignment to save space on i386.
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if test "x$target_cpu" = xi386; then
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AC_CACHE_CHECK([whether -falign-loops works], [grub_cv_cc_falign_loop], [
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CFLAGS="$CFLAGS -falign-loops=1"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_falign_loop=yes],
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[grub_cv_cc_falign_loop=no])
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])
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if test "x$grub_cv_cc_falign_loop" = xyes; then
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TARGET_CFLAGS="$TARGET_CFLAGS -falign-jumps=1 -falign-loops=1 -falign-functions=1"
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else
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TARGET_CFLAGS="$TARGET_CFLAGS -malign-jumps=1 -malign-loops=1 -malign-functions=1"
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fi
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fi
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fi
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grub_apple_target_cc
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if test x$grub_cv_apple_target_cc = xyes ; then
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TARGET_CFLAGS="$TARGET_CFLAGS -DAPPLE_CC=1 -fnested-functions"
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CFLAGS="$CFLAGS -DAPPLE_CC=1 -fnested-functions"
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TARGET_ASFLAGS="$TARGET_ASFLAGS -DAPPLE_CC=1"
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TARGET_APPLE_CC=1
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AC_CHECK_PROG([OBJCONV], [objconv], [objconv], [])
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if test "x$OBJCONV" = x ; then
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AC_CHECK_PROG([OBJCONV], [objconv], [./objconv], [], [.])
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fi
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if test "x$OBJCONV" = x ; then
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AC_MSG_ERROR([objconv not found which is required when building with apple compiler])
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fi
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TARGET_IMG_LDSCRIPT=
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TARGET_IMG_CFLAGS="-static"
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TARGET_IMG_LDFLAGS='-nostdlib -static -Wl,-preload -Wl,-segalign,20 -Wl,-image_base,'
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TARGET_IMG_LDFLAGS_AC='-nostdlib -static -Wl,-preload -Wl,-segalign,20 -Wl,-image_base,'
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else
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TARGET_APPLE_CC=0
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# Use linker script if present, otherwise use builtin -N script.
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if test -f "${srcdir}/conf/${target_cpu}-${platform}-${host_os}-img-ld.sc"; then
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TARGET_IMG_LDSCRIPT='$(top_srcdir)'"/conf/${target_cpu}-${platform}-${host_os}-img-ld.sc"
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TARGET_IMG_LDFLAGS="-Wl,-T${TARGET_IMG_LDSCRIPT} -Wl,-Ttext,"
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TARGET_IMG_LDFLAGS_AC="-Wl,-T${srcdir}/conf/${target_cpu}-${platform}-${host_os}-img-ld.sc"
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else
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TARGET_IMG_LDSCRIPT=
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TARGET_IMG_LDFLAGS='-Wl,-N -Wl,-Ttext,'
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TARGET_IMG_LDFLAGS_AC='-Wl,-N -Wl,-Ttext,'
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fi
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TARGET_IMG_CFLAGS=
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fi
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AC_SUBST(TARGET_IMG_LDSCRIPT)
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AC_SUBST(TARGET_IMG_LDFLAGS)
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AC_SUBST(TARGET_IMG_CFLAGS)
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# For platforms where ELF is not the default link format.
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AC_MSG_CHECKING([for command to convert module to ELF format])
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case "${host_os}" in
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cygwin) TARGET_OBJ2ELF='grub-pe2elf' ;;
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*) ;;
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esac
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AC_SUBST(TARGET_OBJ2ELF)
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AC_MSG_RESULT([$TARGET_OBJ2ELF])
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if test "x$target_m32" = x1; then
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# Force 32-bit mode.
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TARGET_CFLAGS="$TARGET_CFLAGS -m32"
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TARGET_LDFLAGS="$TARGET_LDFLAGS -m32"
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TARGET_MODULE_FORMAT="elf32"
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fi
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if test "x$target_m64" = x1; then
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# Force 64-bit mode.
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TARGET_CFLAGS="$TARGET_CFLAGS -m64"
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TARGET_LDFLAGS="$TARGET_LDFLAGS -m64"
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TARGET_MODULE_FORMAT="elf64"
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fi
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if test "$target_cpu"-"$platform" = x86_64-efi; then
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# Use large model to support 4G memory
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AC_CACHE_CHECK([whether option -mcmodel=large works], grub_cv_cc_mcmodel, [
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SAVED_CFLAGS=$CFLAGS
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CFLAGS="$CFLAGS -m64 -mcmodel=large"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_mcmodel=yes],
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[grub_cv_cc_mcmodel=no])
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])
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if test "x$grub_cv_cc_mcmodel" = xno; then
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CFLAGS="$SAVED_CFLAGS -m64 -DMCMODEL_SMALL=1"
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TARGET_CFLAGS="$TARGET_CFLAGS -DMCMODEL_SMALL=1"
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AC_MSG_WARN([-mcmodel=large not supported. You wan't be able to use the memory over 4GiB. Upgrade your gcc])
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else
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TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=large"
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fi
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# EFI writes to stack below %rsp, we must not use the red zone
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AC_CACHE_CHECK([whether option -mno-red-zone works], grub_cv_cc_no_red_zone, [
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CFLAGS="$CFLAGS -m64 -mno-red-zone"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_no_red_zone=yes],
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[grub_cv_cc_no_red_zone=no])
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])
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if test "x$grub_cv_cc_no_red_zone" = xno; then
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AC_MSG_ERROR([-mno-red-zone not supported, upgrade your gcc])
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fi
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TARGET_CFLAGS="$TARGET_CFLAGS -mno-red-zone"
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fi
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#
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# Compiler features.
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#
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# Need __enable_execute_stack() for nested function trampolines?
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grub_CHECK_ENABLE_EXECUTE_STACK
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# Smashing stack protector.
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grub_CHECK_STACK_PROTECTOR
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# Need that, because some distributions ship compilers that include
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# `-fstack-protector' in the default specs.
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if test "x$ssp_possible" = xyes; then
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TARGET_CFLAGS="$TARGET_CFLAGS -fno-stack-protector"
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fi
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grub_CHECK_STACK_ARG_PROBE
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# Cygwin's GCC uses alloca() to probe the stackframe on static
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# stack allocations above some threshold.
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if test x"$sap_possible" = xyes; then
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TARGET_CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
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fi
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AC_SUBST(TARGET_CFLAGS)
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AC_SUBST(TARGET_MODULE_FORMAT)
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AC_SUBST(OBJCONV)
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AC_SUBST(TARGET_APPLE_CC)
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AC_SUBST(TARGET_ASFLAGS)
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AC_SUBST(TARGET_CPPFLAGS)
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AC_SUBST(TARGET_LDFLAGS)
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# Set them to their new values for the tests below.
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CC="$TARGET_CC"
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if test "x$TARGET_APPLE_CC" = x1 ; then
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CFLAGS="$TARGET_CFLAGS -nostdlib"
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else
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CFLAGS="$TARGET_CFLAGS -nostdlib -Wl,--defsym,___main=0x8100"
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fi
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CPPFLAGS="$TARGET_CPPFLAGS"
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LDFLAGS="$TARGET_LDFLAGS"
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# Defined in aclocal.m4.
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grub_PROG_TARGET_CC
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if test "x$TARGET_APPLE_CC" != x1 ; then
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grub_PROG_OBJCOPY_ABSOLUTE
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fi
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grub_PROG_LD_BUILD_ID_NONE
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grub_ASM_USCORE
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if test "x$target_cpu" = xi386; then
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if test ! -z "$TARGET_IMG_LDSCRIPT"; then
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# Check symbols provided by linker script.
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CFLAGS="$TARGET_CFLAGS -nostdlib $TARGET_IMG_LDFLAGS_AC -Wl,-Ttext,8000,--defsym,___main=0x8100"
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fi
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if test "x$TARGET_APPLE_CC" != x1 ; then
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grub_CHECK_BSS_START_SYMBOL
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grub_CHECK_END_SYMBOL
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fi
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CFLAGS="$TARGET_CFLAGS"
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grub_I386_ASM_PREFIX_REQUIREMENT
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grub_I386_ASM_ADDR32
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grub_I386_ASM_ABSOLUTE_WITHOUT_ASTERISK
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else
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AC_DEFINE([NESTED_FUNC_ATTR], [], [Catch gcc bug])
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fi
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AH_BOTTOM([#if defined(__i386__) && !defined(GRUB_UTIL)
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#define NESTED_FUNC_ATTR __attribute__ ((__regparm__ (1)))
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#else
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#define NESTED_FUNC_ATTR
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#endif])
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# Restore the flags.
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CC="$tmp_CC"
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CFLAGS="$tmp_CFLAGS"
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CPPFLAGS="$tmp_CPPFLAGS"
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LDFLAGS="$tmp_LDFLAGS"
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LIBS="$tmp_LIBS"
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#
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# Check for options.
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#
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# Memory manager debugging.
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AC_ARG_ENABLE([mm-debug],
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AS_HELP_STRING([--enable-mm-debug],
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[include memory manager debugging]),
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[AC_DEFINE([MM_DEBUG], [1],
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[Define to 1 if you enable memory manager debugging.])])
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AC_ARG_ENABLE([grub-emu],
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[AS_HELP_STRING([--enable-grub-emu],
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[build and install the `grub-emu' debugging utility])])
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AC_ARG_ENABLE([grub-emu-usb],
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[AS_HELP_STRING([--enable-grub-emu-usb],
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[build and install the `grub-emu' debugging utility with USB support])])
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[if [ x"$enable_grub_emu" = xyes ]; then
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# Check for curses libraries.]
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AC_CHECK_LIB([ncurses], [wgetch], [LIBCURSES="-lncurses"],
|
|
[AC_CHECK_LIB([curses], [wgetch], [LIBCURSES="-lcurses"],
|
|
[AC_MSG_ERROR([(n)curses libraries are required to build `grub-emu'])])])
|
|
AC_SUBST([LIBCURSES])
|
|
|
|
[# Check for headers.]
|
|
AC_CHECK_HEADERS([ncurses/curses.h], [],
|
|
[AC_CHECK_HEADERS([ncurses.h], [],
|
|
[AC_CHECK_HEADERS([curses.h], [],
|
|
[AC_MSG_ERROR([(n)curses header files are required to build `grub-emu'])])])])
|
|
|
|
[if [ x"$enable_grub_emu_usb" = xyes ]; then
|
|
# Check for libusb libraries.]
|
|
AC_CHECK_LIB([usb], [usb_claim_interface], [LIBUSB="-lusb"],
|
|
[AC_MSG_ERROR([libusb libraries are required to build `grub-emu' with USB support])])
|
|
AC_SUBST([LIBUSB])
|
|
|
|
[# Check for headers.]
|
|
AC_CHECK_HEADERS([usb.h], [],
|
|
[AC_MSG_ERROR([libusb header file is required to build `grub-emu' with USB support])])
|
|
[fi]
|
|
[fi]
|
|
AC_SUBST([enable_grub_emu])
|
|
AC_SUBST([enable_grub_emu_usb])
|
|
|
|
AC_ARG_ENABLE([grub-fstest],
|
|
[AS_HELP_STRING([--enable-grub-fstest],
|
|
[build and install the `grub-fstest' debugging utility])])
|
|
AC_SUBST([enable_grub_fstest])
|
|
|
|
AC_ARG_ENABLE([grub-pe2elf],
|
|
[AS_HELP_STRING([--enable-grub-pe2elf],
|
|
[build and install the `grub-pe2elf' conversion utility])])
|
|
AC_SUBST([enable_grub_pe2elf])
|
|
|
|
AC_ARG_ENABLE([grub-mkfont],
|
|
[AS_HELP_STRING([--enable-grub-mkfont],
|
|
[build and install the `grub-mkfont' utility])])
|
|
if test x"$enable_grub_mkfont" = xyes ; then
|
|
# Check for freetype libraries.
|
|
AC_CHECK_PROGS([FREETYPE], [freetype-config])
|
|
if test "x$FREETYPE" = x ; then
|
|
AC_MSG_ERROR([freetype2 libraries are required to build `grub-mkfont'])
|
|
fi
|
|
freetype_cflags=`freetype-config --cflags`
|
|
freetype_libs=`freetype-config --libs`
|
|
fi
|
|
AC_SUBST([enable_grub_mkfont])
|
|
AC_SUBST([freetype_cflags])
|
|
AC_SUBST([freetype_libs])
|
|
|
|
AC_ARG_ENABLE([efiemu],
|
|
[AS_HELP_STRING([--enable-efiemu],
|
|
[build and install the efiemu runtimes])])
|
|
AC_SUBST([enable_efiemu])
|
|
AC_SUBST(ASFLAGS)
|
|
|
|
# Output files.
|
|
grub_CHECK_LINK_DIR
|
|
if test x"$link_dir" = xyes ; then
|
|
AC_CONFIG_LINKS([include/grub/cpu:include/grub/$target_cpu
|
|
include/grub/machine:include/grub/$target_cpu/$platform])
|
|
else
|
|
mkdir -p include/grub 2>/dev/null
|
|
rm -rf include/grub/cpu
|
|
cp -rp $srcdir/include/grub/$target_cpu include/grub/cpu 2>/dev/null
|
|
rm -rf include/grub/machine
|
|
cp -rp $srcdir/include/grub/$target_cpu/$platform include/grub/machine 2>/dev/null
|
|
fi
|
|
AC_CONFIG_FILES([Makefile gensymlist.sh genkernsyms.sh])
|
|
AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
|
|
AC_OUTPUT
|