# Extra autoconf macros for the Glasgow fptools # # To be a good autoconf citizen, names of local macros have prefixed with FP_ to # ensure we don't clash with any pre-supplied autoconf ones. AC_DEFUN([GHC_SELECT_FILE_EXTENSIONS], [ $2='' $3='.so' case $1 in *-unknown-cygwin32) AC_MSG_WARN([GHC does not support the Cygwin target at the moment]) AC_MSG_WARN([I'm assuming you wanted to build for i386-unknown-mingw32]) exit 1 ;; *-unknown-mingw32) windows=YES $2='.exe' $3='.dll' ;; i386-apple-darwin|powerpc-apple-darwin) $3='.dylib' ;; x86_64-apple-darwin) $3='.dylib' ;; arm-apple-darwin10|i386-apple-darwin11) $2='.a' $3='.dylib' ;; esac ]) # FPTOOLS_SET_PLATFORM_VARS # ---------------------------------- # Set the platform variables AC_DEFUN([FPTOOLS_SET_PLATFORM_VARS], [ # If no argument was given for a configuration variable, then discard # the guessed canonical system and use the configuration of the # bootstrapping ghc. If an argument was given, map it from gnu format # to ghc format. # # For why we do it this way, see: #3637, #1717, #2951 # # In bindists, we haven't called AC_CANONICAL_{BUILD,HOST,TARGET} # so this justs uses $bootstrap_target. if test "$build_alias" = "" then if test "$bootstrap_target" != "" then build=$bootstrap_target echo "Build platform inferred as: $build" else echo "Can't work out build platform" exit 1 fi BuildArch=`echo "$build" | sed 's/-.*//'` BuildVendor=`echo "$build" | sed -e 's/.*-\(.*\)-.*/\1/'` BuildOS=`echo "$build" | sed 's/.*-//'` else GHC_CONVERT_CPU([$build_cpu], [BuildArch]) GHC_CONVERT_VENDOR([$build_vendor], [BuildVendor]) GHC_CONVERT_OS([$build_os], [$BuildArch], [BuildOS]) fi if test "$host_alias" = "" then if test "$bootstrap_target" != "" then host=$bootstrap_target echo "Host platform inferred as: $host" else echo "Can't work out host platform" exit 1 fi HostArch=`echo "$host" | sed 's/-.*//'` HostVendor=`echo "$host" | sed -e 's/.*-\(.*\)-.*/\1/'` HostOS=`echo "$host" | sed 's/.*-//'` else GHC_CONVERT_CPU([$host_cpu], [HostArch]) GHC_CONVERT_VENDOR([$host_vendor], [HostVendor]) GHC_CONVERT_OS([$host_os], [$HostArch], [HostOS]) fi if test "$target_alias" = "" then if test "$host_alias" != "" then GHC_CONVERT_CPU([$host_cpu], [TargetArch]) GHC_CONVERT_VENDOR([$host_vendor], [TargetVendor]) GHC_CONVERT_OS([$host_os], [$TargetArch],[TargetOS]) else if test "$bootstrap_target" != "" then target=$bootstrap_target echo "Target platform inferred as: $target" else echo "Can't work out target platform" exit 1 fi TargetArch=`echo "$target" | sed 's/-.*//'` TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'` TargetOS=`echo "$target" | sed 's/.*-//'` fi else GHC_CONVERT_CPU([$target_cpu], [TargetArch]) GHC_CONVERT_VENDOR([$target_vendor], [TargetVendor]) GHC_CONVERT_OS([$target_os], [$TargetArch], [TargetOS]) fi GHC_SELECT_FILE_EXTENSIONS([$host], [exeext_host], [soext_host]) GHC_SELECT_FILE_EXTENSIONS([$target], [exeext_target], [soext_target]) windows=NO case $host in *-unknown-mingw32) windows=YES ;; esac BuildPlatform="$BuildArch-$BuildVendor-$BuildOS" BuildPlatform_CPP=`echo "$BuildPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'` BuildArch_CPP=` echo "$BuildArch" | sed -e 's/\./_/g' -e 's/-/_/g'` BuildVendor_CPP=` echo "$BuildVendor" | sed -e 's/\./_/g' -e 's/-/_/g'` BuildOS_CPP=` echo "$BuildOS" | sed -e 's/\./_/g' -e 's/-/_/g'` HostPlatform="$HostArch-$HostVendor-$HostOS" HostPlatform_CPP=`echo "$HostPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'` HostArch_CPP=` echo "$HostArch" | sed -e 's/\./_/g' -e 's/-/_/g'` HostVendor_CPP=` echo "$HostVendor" | sed -e 's/\./_/g' -e 's/-/_/g'` HostOS_CPP=` echo "$HostOS" | sed -e 's/\./_/g' -e 's/-/_/g'` TargetPlatform="$TargetArch-$TargetVendor-$TargetOS" TargetPlatform_CPP=`echo "$TargetPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'` TargetArch_CPP=` echo "$TargetArch" | sed -e 's/\./_/g' -e 's/-/_/g'` TargetVendor_CPP=` echo "$TargetVendor" | sed -e 's/\./_/g' -e 's/-/_/g'` TargetOS_CPP=` echo "$TargetOS" | sed -e 's/\./_/g' -e 's/-/_/g'` echo "GHC build : $BuildPlatform" echo "GHC host : $HostPlatform" echo "GHC target : $TargetPlatform" AC_SUBST(BuildPlatform) AC_SUBST(HostPlatform) AC_SUBST(TargetPlatform) AC_SUBST(HostPlatform_CPP) AC_SUBST(BuildPlatform_CPP) AC_SUBST(TargetPlatform_CPP) AC_SUBST(HostArch_CPP) AC_SUBST(BuildArch_CPP) AC_SUBST(TargetArch_CPP) AC_SUBST(HostOS_CPP) AC_SUBST(BuildOS_CPP) AC_SUBST(TargetOS_CPP) AC_SUBST(HostVendor_CPP) AC_SUBST(BuildVendor_CPP) AC_SUBST(TargetVendor_CPP) AC_SUBST(exeext_host) AC_SUBST(exeext_target) AC_SUBST(soext_host) AC_SUBST(soext_target) ]) # FPTOOLS_SET_HASKELL_PLATFORM_VARS # ---------------------------------- # Set the Haskell platform variables AC_DEFUN([FPTOOLS_SET_HASKELL_PLATFORM_VARS], [ checkArch() { case [$]1 in i386) test -z "[$]2" || eval "[$]2=ArchX86" ;; x86_64|amd64) test -z "[$]2" || eval "[$]2=ArchX86_64" ;; powerpc) test -z "[$]2" || eval "[$]2=ArchPPC" ;; powerpc64) test -z "[$]2" || eval "[$]2=ArchPPC_64" ;; sparc) test -z "[$]2" || eval "[$]2=ArchSPARC" ;; arm) GET_ARM_ISA() test -z "[$]2" || eval "[$]2=\"ArchARM {armISA = \$ARM_ISA, armISAExt = \$ARM_ISA_EXT, armABI = \$ARM_ABI}\"" ;; aarch64) test -z "[$]2" || eval "[$]2=ArchARM64" ;; alpha) test -z "[$]2" || eval "[$]2=ArchAlpha" ;; mips|mipseb) test -z "[$]2" || eval "[$]2=ArchMipseb" ;; mipsel) test -z "[$]2" || eval "[$]2=ArchMipsel" ;; hppa|hppa1_1|ia64|m68k|powerpc64le|rs6000|s390|s390x|sparc64|vax) test -z "[$]2" || eval "[$]2=ArchUnknown" ;; *) echo "Unknown arch [$]1" exit 1 ;; esac } checkVendor() { case [$]1 in dec|unknown|hp|apple|next|sun|sgi|ibm|montavista|portbld) ;; *) echo "Unknown vendor [$]1" exit 1 ;; esac } checkOS() { case [$]1 in linux) test -z "[$]2" || eval "[$]2=OSLinux" ;; ios) test -z "[$]2" || eval "[$]2=OSiOS" ;; darwin) test -z "[$]2" || eval "[$]2=OSDarwin" ;; solaris2) test -z "[$]2" || eval "[$]2=OSSolaris2" ;; mingw32) test -z "[$]2" || eval "[$]2=OSMinGW32" ;; freebsd) test -z "[$]2" || eval "[$]2=OSFreeBSD" ;; dragonfly) test -z "[$]2" || eval "[$]2=OSDragonFly" ;; kfreebsdgnu) test -z "[$]2" || eval "[$]2=OSKFreeBSD" ;; openbsd) test -z "[$]2" || eval "[$]2=OSOpenBSD" ;; netbsd) test -z "[$]2" || eval "[$]2=OSNetBSD" ;; haiku) test -z "[$]2" || eval "[$]2=OSHaiku" ;; osf3) test -z "[$]2" || eval "[$]2=OSOsf3" ;; nto-qnx) test -z "[$]2" || eval "[$]2=OSQNXNTO" ;; dragonfly|osf1|hpux|linuxaout|freebsd2|cygwin32|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix) test -z "[$]2" || eval "[$]2=OSUnknown" ;; linux-android) test -z "[$]2" || eval "[$]2=OSAndroid" ;; *) echo "Unknown OS '[$]1'" exit 1 ;; esac } dnl ** check for Apple-style dead-stripping support dnl (.subsections-via-symbols assembler directive) AC_MSG_CHECKING(for .subsections_via_symbols) AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])], [AC_MSG_RESULT(yes) HaskellHaveSubsectionsViaSymbols=True AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1], [Define to 1 if Apple-style dead-stripping is supported.]) ], [HaskellHaveSubsectionsViaSymbols=False AC_MSG_RESULT(no)]) dnl ** check for .ident assembler directive AC_MSG_CHECKING(whether your assembler supports .ident directive) AC_COMPILE_IFELSE( [AC_LANG_SOURCE([__asm__ (".ident \"GHC x.y.z\"");])], [AC_MSG_RESULT(yes) HaskellHaveIdentDirective=True], [AC_MSG_RESULT(no) HaskellHaveIdentDirective=False]) dnl *** check for GNU non-executable stack note support (ELF only) dnl (.section .note.GNU-stack,"",@progbits) dnl This test doesn't work with "gcc -g" in gcc 4.4 (GHC trac #3889: dnl Error: can't resolve `.note.GNU-stack' {.note.GNU-stack section} - `.Ltext0' {.text section} dnl so we empty CFLAGS while running this test CFLAGS2="$CFLAGS" CFLAGS= AC_MSG_CHECKING(for GNU non-executable stack support) AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])], [AC_MSG_RESULT(yes) HaskellHaveGnuNonexecStack=True], [AC_MSG_RESULT(no) HaskellHaveGnuNonexecStack=False]) CFLAGS="$CFLAGS2" checkArch "$BuildArch" "HaskellBuildArch" checkVendor "$BuildVendor" checkOS "$BuildOS" "" checkArch "$HostArch" "HaskellHostArch" checkVendor "$HostVendor" checkOS "$HostOS" "" checkArch "$TargetArch" "HaskellTargetArch" checkVendor "$TargetVendor" checkOS "$TargetOS" "HaskellTargetOs" AC_SUBST(HaskellTargetArch) AC_SUBST(HaskellTargetOs) AC_SUBST(HaskellHaveSubsectionsViaSymbols) AC_SUBST(HaskellHaveIdentDirective) AC_SUBST(HaskellHaveGnuNonexecStack) ]) # GET_ARM_ISA # ---------------------------------- # Get info about the ISA on the ARM arch AC_DEFUN([GET_ARM_ISA], [ AC_COMPILE_IFELSE([ AC_LANG_PROGRAM( [], [#if defined(__ARM_ARCH_2__) || \ defined(__ARM_ARCH_3__) || \ defined(__ARM_ARCH_3M__) || \ defined(__ARM_ARCH_4__) || \ defined(__ARM_ARCH_4T__) || \ defined(__ARM_ARCH_5__) || \ defined(__ARM_ARCH_5T__) || \ defined(__ARM_ARCH_5E__) || \ defined(__ARM_ARCH_5TE__) return 0; #else not pre arm v6 #endif] )], [AC_DEFINE(arm_HOST_ARCH_PRE_ARMv6, 1, [ARM pre v6]) AC_DEFINE(arm_HOST_ARCH_PRE_ARMv7, 1, [ARM pre v7]) changequote(, )dnl ARM_ISA=ARMv5 ARM_ISA_EXT="[]" changequote([, ])dnl ], [ AC_COMPILE_IFELSE([ AC_LANG_PROGRAM( [], [#if defined(__ARM_ARCH_6__) || \ defined(__ARM_ARCH_6J__) || \ defined(__ARM_ARCH_6T2__) || \ defined(__ARM_ARCH_6Z__) || \ defined(__ARM_ARCH_6ZK__) || \ defined(__ARM_ARCH_6M__) return 0; #else not pre arm v7 #endif] )], [AC_DEFINE(arm_HOST_ARCH_PRE_ARMv7, 1, [ARM pre v7]) ARM_ISA=ARMv6 AC_COMPILE_IFELSE([ AC_LANG_PROGRAM( [], [#if defined(__VFP_FP__) return 0; #else no vfp #endif] )], [changequote(, )dnl ARM_ISA_EXT="[VFPv2]" changequote([, ])dnl ], [changequote(, )dnl ARM_ISA_EXT="[]" changequote([, ])dnl ] )], [changequote(, )dnl ARM_ISA=ARMv7 ARM_ISA_EXT="[VFPv3,NEON]" changequote([, ])dnl ]) ]) AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [], [#if defined(__SOFTFP__) return 0; #else not softfp #endif] )], [changequote(, )dnl ARM_ABI="SOFT" changequote([, ])dnl ], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [], [#if defined(__ARM_PCS_VFP) return 0; #else no hard float ABI #endif] )], [ARM_ABI="HARD"], [ARM_ABI="SOFTFP"] )] ) ]) # FP_SETTINGS # ---------------------------------- # Set the variables used in the settings file AC_DEFUN([FP_SETTINGS], [ if test "$windows" = YES then mingw_bin_prefix=mingw/bin/ SettingsCCompilerCommand="\$topdir/../${mingw_bin_prefix}gcc.exe" SettingsLdCommand="\$topdir/../${mingw_bin_prefix}ld.exe" SettingsArCommand="\$topdir/../${mingw_bin_prefix}ar.exe" SettingsPerlCommand='$topdir/../perl/perl.exe' SettingsDllWrapCommand="\$topdir/../${mingw_bin_prefix}dllwrap.exe" SettingsWindresCommand="\$topdir/../${mingw_bin_prefix}windres.exe" SettingsTouchCommand='$topdir/touchy.exe' else SettingsCCompilerCommand="$WhatGccIsCalled" SettingsLdCommand="$LdCmd" SettingsArCommand="$ArCmd" SettingsPerlCommand="$PerlCmd" SettingsDllWrapCommand="/bin/false" SettingsWindresCommand="/bin/false" SettingsLibtoolCommand="libtool" SettingsTouchCommand='touch' if test -z "$LlcCmd" then SettingsLlcCommand="llc" else SettingsLlcCommand="$LlcCmd" fi if test -z "$OptCmd" then SettingsOptCommand="opt" else SettingsOptCommand="$OptCmd" fi fi SettingsCCompilerFlags="$CONF_CC_OPTS_STAGE2" SettingsCCompilerLinkFlags="$CONF_GCC_LINKER_OPTS_STAGE2" SettingsLdFlags="$CONF_LD_LINKER_OPTS_STAGE2" AC_SUBST(SettingsCCompilerCommand) AC_SUBST(SettingsCCompilerFlags) AC_SUBST(SettingsCCompilerLinkFlags) AC_SUBST(SettingsLdCommand) AC_SUBST(SettingsLdFlags) AC_SUBST(SettingsArCommand) AC_SUBST(SettingsPerlCommand) AC_SUBST(SettingsDllWrapCommand) AC_SUBST(SettingsWindresCommand) AC_SUBST(SettingsLibtoolCommand) AC_SUBST(SettingsTouchCommand) AC_SUBST(SettingsLlcCommand) AC_SUBST(SettingsOptCommand) ]) # FPTOOLS_SET_C_LD_FLAGS # ---------------------------------- # Set the C, LD and CPP flags for a given platform # $1 is the platform # $2 is the name of the CC flags variable # $3 is the name of the linker flags variable when linking with gcc # $4 is the name of the linker flags variable when linking with ld # $5 is the name of the CPP flags variable AC_DEFUN([FPTOOLS_SET_C_LD_FLAGS], [ AC_MSG_CHECKING([Setting up $2, $3, $4 and $5]) case $$1 in i386-*) # Workaround for #7799 $2="$$2 -U__i686" ;; esac case $$1 in i386-apple-darwin) $2="$$2 -m32" $3="$$3 -m32" $4="$$4 -arch i386" $5="$$5 -m32" ;; x86_64-apple-darwin) $2="$$2 -m64" $3="$$3 -m64" $4="$$4 -arch x86_64" $5="$$5 -m64" ;; alpha-*) # For now, to suppress the gcc warning "call-clobbered # register used for global register variable", we simply # disable all warnings altogether using the -w flag. Oh well. $2="$$2 -w -mieee -D_REENTRANT" $3="$$3 -w -mieee -D_REENTRANT" $5="$$5 -w -mieee -D_REENTRANT" ;; hppa*) # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi! # (very nice, but too bad the HP /usr/include files don't agree.) $2="$$2 -D_HPUX_SOURCE" $3="$$3 -D_HPUX_SOURCE" $5="$$5 -D_HPUX_SOURCE" ;; esac # If gcc knows about the stack protector, turn it off. # Otherwise the stack-smash handler gets triggered. echo 'int main(void) {return 0;}' > conftest.c if $CC -c conftest.c -fno-stack-protector > /dev/null 2>&1 then $2="$$2 -fno-stack-protector" fi rm -f conftest.c conftest.o AC_MSG_RESULT([done]) ]) AC_DEFUN([FP_PATH_PROG],[ AC_PATH_PROG($1,$2,$3,$4,$5,$6) # If we have a cygwin path for something, and we try to run it # from cabal or python, then it'll fail. So we convert to a # native path. if test "$HostOS" = "mingw32" && \ test "${OSTYPE}" != "msys" && \ test "${$1}" != "" then # Canonicalise to :/path/to/gcc $1=`cygpath -m "${$1}"` fi ]) # FP_VISIBILITY_HIDDEN # ---------------------------------- # Is the visibility hidden attribute supported? AC_DEFUN([FP_VISIBILITY_HIDDEN], [ AC_MSG_CHECKING([whether __attribute__((visibility("hidden"))) is supported]) echo '__attribute__((visibility("hidden"))) void foo(void) {}' > conftest.c if $CC -Wall -Werror -c conftest.c > /dev/null 2>&1 then AC_MSG_RESULT([yes]) AC_DEFINE(HAS_VISIBILITY_HIDDEN, 1, [Has visibility hidden]) else AC_MSG_RESULT([no]) fi rm -f conftest.c conftest.o ]) # FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN # ---------------------------------- # Little endian ARM on Linux with some ABIs has big endian word order # in doubles. Define FLOAT_WORDS_BIGENDIAN if this is the case. AC_DEFUN([FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN], [AC_CACHE_CHECK([whether float word order is big endian], [fptools_cv_float_word_order_bigendian], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [#include ], [#if defined(__FLOAT_WORD_ORDER) && __FLOAT_WORD_ORDER == BIG_ENDIAN return 0; #else not float word order big endian #endif] )], [fptools_cv_float_word_order_bigendian=yes], [fptools_cv_float_word_order_bigendian=no]) ]) case $fptools_cv_float_word_order_bigendian in yes) AC_DEFINE([FLOAT_WORDS_BIGENDIAN], 1, [Define to 1 if your processor stores words of floats with the most significant byte first]) ;; esac ]) # FP_ARG_WITH_PATH_GNU_PROG # -------------------- # Find the specified command on the path or allow a user to set it manually # with a --with- option. An error will be thrown if the command isn't # found. # # This is ignored on the mingw32 platform. # # $1 = the variable to set # $2 = the with option name # $3 = the command to look for # AC_DEFUN([FP_ARG_WITH_PATH_GNU_PROG], [ AC_ARG_WITH($2, [AC_HELP_STRING([--with-$2=ARG], [Use ARG as the path to $2 [default=autodetect]])], [ if test "$HostOS" = "mingw32" then AC_MSG_WARN([Request to use $withval will be ignored]) else $1=$withval fi # Remember that we set this manually. Used to override CC_STAGE0 # and friends later, if we are not cross-compiling. With_$2=$withval ], [ if test "$HostOS" != "mingw32" then if test "$target_alias" = "" ; then AC_PATH_PROG([$1], [$3]) else AC_PATH_PROG([$1], [$target_alias-$3]) fi if test -z "$$1" then AC_MSG_ERROR([cannot find $3 in your PATH]) fi fi ] ) ]) # FP_ARG_WITH_PATH_GNU_PROG # FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL # -------------------- # Same as FP_ARG_WITH_PATH_GNU_PROG but no error will be thrown if the command # isn't found. # # This is ignored on the mingw32 platform. # # $1 = the variable to set # $2 = the with option name # $3 = the command to look for # AC_DEFUN([FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL], [ AC_ARG_WITH($2, [AC_HELP_STRING([--with-$2=ARG], [Use ARG as the path to $2 [default=autodetect]])], [ if test "$HostOS" = "mingw32" then AC_MSG_WARN([Request to use $withval will be ignored]) else $1=$withval fi # Remember that we set this manually. Used to override CC_STAGE0 # and friends later, if we are not cross-compiling. With_$2=$withval ], [ if test "$HostOS" != "mingw32" then AC_PATH_PROG([$1], [$3]) fi ] ) ]) # FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL # FP_PROG_CONTEXT_DIFF # -------------------- # Figure out how to do context diffs. Sets the output variable ContextDiffCmd. # # Note: NeXTStep thinks diff'ing a file against itself is "trouble". AC_DEFUN([FP_PROG_CONTEXT_DIFF], [AC_CACHE_CHECK([for a working context diff], [fp_cv_context_diff], [echo foo > conftest1 echo foo > conftest2 fp_cv_context_diff=no for fp_var in '-U 1' '-u1' '-C 1' '-c1' do if diff $fp_var conftest1 conftest2 > /dev/null 2>&1; then fp_cv_context_diff="diff $fp_var" break fi done]) if test x"$fp_cv_context_diff" = xno; then AC_MSG_ERROR([cannot figure out how to do context diffs]) fi AC_SUBST(ContextDiffCmd, [$fp_cv_context_diff]) ])# FP_PROG_CONTEXT_DIFF # FP_COMPUTE_INT(EXPRESSION, VARIABLE, INCLUDES, IF-FAILS) # -------------------------------------------------------- # Assign VARIABLE the value of the compile-time EXPRESSION using INCLUDES for # compilation. Execute IF-FAILS when unable to determine the value. Works for # cross-compilation, too. # # Implementation note: We are lazy and use an internal autoconf macro, but it # is supported in autoconf versions 2.50 up to the actual 2.57, so there is # little risk. AC_DEFUN([FP_COMPUTE_INT], [_AC_COMPUTE_INT([$1], [$2], [$3], [$4])[]dnl ])# FP_COMPUTE_INT # FP_CHECK_ALIGNMENT(TYPE, [IGNORED], [INCLUDES = DEFAULT-INCLUDES]) # ------------------------------------------------------------------ # A variation of AC_CHECK_SIZEOF for computing the alignment restrictions of a # given type. Defines ALIGNMENT_TYPE. AC_DEFUN([FP_CHECK_ALIGNMENT], [AS_LITERAL_IF(m4_translit([[$1]], [*], [p]), [], [AC_FATAL([$0: requires literal arguments])])[]dnl AC_CHECK_TYPE([$1], [], [], [$3])[]dnl m4_pushdef([fp_Cache], [AS_TR_SH([fp_cv_alignment_$1])])[]dnl AC_CACHE_CHECK([alignment of $1], [fp_Cache], [if test "$AS_TR_SH([ac_cv_type_$1])" = yes; then FP_COMPUTE_INT([offsetof(struct { char c; $1 ty; },ty)], [fp_Cache], [AC_INCLUDES_DEFAULT([$3])], [AC_MSG_ERROR([cannot compute alignment ($1) See `config.log' for more details.], [77])]) else fp_Cache=0 fi])[]dnl AC_DEFINE_UNQUOTED(AS_TR_CPP(alignment_$1), $fp_Cache, [The alignment of a `$1'.])[]dnl m4_popdef([fp_Cache])[]dnl ])# FP_CHECK_ALIGNMENT # FP_LEADING_UNDERSCORE # --------------------- # Test for determining whether symbol names have a leading underscore. We assume # that they _haven't_ if anything goes wrong. Sets the output variable # LeadingUnderscore to YES or NO and defines LEADING_UNDERSCORE correspondingly. # # Some nlist implementations seem to try to be compatible by ignoring a leading # underscore sometimes (eg. FreeBSD). We therefore have to work around this by # checking for *no* leading underscore first. Sigh. --SDM # # Similarly on OpenBSD, but this test doesn't help. -- dons AC_DEFUN([FP_LEADING_UNDERSCORE], [AC_CHECK_LIB([elf], [nlist], [LIBS="-lelf $LIBS"]) AC_CACHE_CHECK([leading underscore in symbol names], [fptools_cv_leading_underscore], [ # Hack!: nlist() under Digital UNIX insist on there being an _, # but symbol table listings shows none. What is going on here?!? # # Another hack: cygwin doesn't come with nlist.h , so we hardwire # the underscoredness of that "platform" case $HostPlatform in *openbsd*) # x86 openbsd is ELF from 3.4 >, meaning no leading uscore case $build in i386-*2\.@<:@0-9@:>@ | i386-*3\.@<:@0-3@:>@ ) fptools_cv_leading_underscore=yes ;; *) fptools_cv_leading_underscore=no ;; esac ;; alpha-dec-osf*) fptools_cv_leading_underscore=no;; *cygwin32) fptools_cv_leading_underscore=yes;; i386-unknown-mingw32) fptools_cv_leading_underscore=yes;; x86_64-unknown-mingw32) fptools_cv_leading_underscore=no;; # HACK: Apple doesn't seem to provide nlist in the 64-bit-libraries x86_64-apple-darwin*) fptools_cv_leading_underscore=yes;; *-apple-ios) fptools_cv_leading_underscore=yes;; *) AC_RUN_IFELSE([AC_LANG_SOURCE([[#ifdef HAVE_NLIST_H #include struct nlist xYzzY1[] = {{"xYzzY1", 0},{0}}; struct nlist xYzzY2[] = {{"_xYzzY2", 0},{0}}; #endif int main(argc, argv) int argc; char **argv; { #ifdef HAVE_NLIST_H if(nlist(argv[0], xYzzY1) == 0 && xYzzY1[0].n_value != 0) exit(1); if(nlist(argv[0], xYzzY2) == 0 && xYzzY2[0].n_value != 0) exit(0); #endif exit(1); }]])],[fptools_cv_leading_underscore=yes],[fptools_cv_leading_underscore=no],[fptools_cv_leading_underscore=no]) ;; esac]); AC_SUBST([LeadingUnderscore], [`echo $fptools_cv_leading_underscore | sed 'y/yesno/YESNO/'`]) if test x"$fptools_cv_leading_underscore" = xyes; then AC_DEFINE([LEADING_UNDERSCORE], [1], [Define to 1 if C symbols have a leading underscore added by the compiler.]) fi])# FP_LEADING_UNDERSCORE # FP_COMPARE_VERSIONS(VERSION1, TEST, VERSION2, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # ---------------------------------------------------------------------------------- # Compare dotted version numbers VERSION1 and VERSION2 lexicographically according # to TEST (one of -eq, -ne, -lt, -le, -gt, or -ge). AC_DEFUN([FP_COMPARE_VERSIONS], [fp_version1=$1; fp_version2=$3 fp_save_IFS=$IFS; IFS='.' while test x"$fp_version1" != x || test x"$fp_version2" != x do set dummy $fp_version1; shift fp_num1="" test $[@%:@] = 0 || { fp_num1="[$]1"; shift; } test x"$fp_num1" = x && fp_num1="0" fp_version1="[$]*" set dummy $fp_version2; shift fp_num2="" test $[@%:@] = 0 || { fp_num2="[$]1"; shift; } test x"$fp_num2" = x && fp_num2="0" fp_version2="[$]*" test "$fp_num1" = "$fp_num2" || break; done IFS=$fp_save_IFS AS_IF([test "$fp_num1" $2 "$fp_num2"], [$4], [$5])[]dnl ])# FP_COMPARE_VERSIONS dnl dnl Check for Happy and version. If we're building GHC, then we need dnl at least Happy version 1.19. If there's no installed Happy, we look dnl for a happy source tree and point the build system at that instead. dnl AC_DEFUN([FPTOOLS_HAPPY], [FP_PATH_PROG(HappyCmd,happy,) AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version, changequote(, )dnl [if test x"$HappyCmd" != x; then fptools_cv_happy_version=`"$HappyCmd" -v | grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'` ; else fptools_cv_happy_version=""; fi; changequote([, ])dnl ]) if test ! -f compiler/parser/Parser.hs || test ! -f compiler/cmm/CmmParse.hs then FP_COMPARE_VERSIONS([$fptools_cv_happy_version],[-lt],[1.19], [AC_MSG_ERROR([Happy version 1.19 or later is required to compile GHC.])])[] fi HappyVersion=$fptools_cv_happy_version; AC_SUBST(HappyVersion) ]) dnl dnl Check for Alex and version. If we're building GHC, then we need dnl at least Alex version 2.1.1. dnl AC_DEFUN([FPTOOLS_ALEX], [ FP_PATH_PROG(AlexCmd,alex,) AC_CACHE_CHECK([for version of alex], fptools_cv_alex_version, changequote(, )dnl [if test x"$AlexCmd" != x; then fptools_cv_alex_version=`"$AlexCmd" -v | grep 'Alex [Vv]ersion' | sed -e 's/Alex [Vv]ersion \([0-9\.]*\).*/\1/g'` ; else fptools_cv_alex_version=""; fi; changequote([, ])dnl ]) FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-ge],[3.0], [Alex3=YES],[Alex3=NO]) if test ! -f compiler/cmm/CmmLex.hs || test ! -f compiler/parser/Lexer.hs then FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-lt],[3.1.0], [AC_MSG_ERROR([Alex version 3.1.0 or later is required to compile GHC.])])[] fi AlexVersion=$fptools_cv_alex_version; AC_SUBST(AlexVersion) AC_SUBST(Alex3) ]) # FP_PROG_LD_FLAG # --------------- # Sets the output variable $2 to $1 if ld supports the $1 flag. # Otherwise the variable's value is empty. AC_DEFUN([FP_PROG_LD_FLAG], [ AC_CACHE_CHECK([whether ld understands $1], [fp_cv_$2], [echo 'int foo() { return 0; }' > conftest.c ${CC-cc} -c conftest.c if ${LdCmd} -r $1 -o conftest2.o conftest.o > /dev/null 2>&1; then fp_cv_$2=$1 else fp_cv_$2= fi rm -rf conftest*]) $2=$fp_cv_$2 ])# FP_PROG_LD_FLAG # FP_PROG_LD_BUILD_ID # ------------ # Sets the output variable LdHasBuildId to YES if ld supports # --build-id, or NO otherwise. AC_DEFUN([FP_PROG_LD_BUILD_ID], [ AC_CACHE_CHECK([whether ld understands --build-id], [fp_cv_ld_build_id], [echo 'int foo() { return 0; }' > conftest.c ${CC-cc} -c conftest.c if ${LdCmd} -r --build-id=none -o conftest2.o conftest.o > /dev/null 2>&1; then fp_cv_ld_build_id=yes else fp_cv_ld_build_id=no fi rm -rf conftest*]) if test "$fp_cv_ld_build_id" = yes; then LdHasBuildId=YES else LdHasBuildId=NO fi AC_SUBST([LdHasBuildId]) ])# FP_PROG_LD_BUILD_ID # FP_PROG_LD_IS_GNU # ----------------- # Sets the output variable LdIsGNULd to YES or NO, depending on whether it is # GNU ld or not. AC_DEFUN([FP_PROG_LD_IS_GNU], [ AC_CACHE_CHECK([whether ld is GNU ld], [fp_cv_gnu_ld], [if ${LdCmd} --version 2> /dev/null | grep "GNU" > /dev/null 2>&1; then fp_cv_gnu_ld=yes else fp_cv_gnu_ld=no fi]) AC_SUBST([LdIsGNULd], [`echo $fp_cv_gnu_ld | sed 'y/yesno/YESNO/'`]) ])# FP_PROG_LD_IS_GNU # FP_PROG_LD_NO_COMPACT_UNWIND # ---------------------------- # Sets the output variable LdHasNoCompactUnwind to YES if ld supports # -no_compact_unwind, or NO otherwise. AC_DEFUN([FP_PROG_LD_NO_COMPACT_UNWIND], [ AC_CACHE_CHECK([whether ld understands -no_compact_unwind], [fp_cv_ld_no_compact_unwind], [echo 'int foo() { return 0; }' > conftest.c ${CC-cc} -c conftest.c if ${LdCmd} -r -no_compact_unwind -o conftest2.o conftest.o > /dev/null 2>&1; then fp_cv_ld_no_compact_unwind=yes else fp_cv_ld_no_compact_unwind=no fi rm -rf conftest*]) if test "$fp_cv_ld_no_compact_unwind" = yes; then LdHasNoCompactUnwind=YES else LdHasNoCompactUnwind=NO fi AC_SUBST([LdHasNoCompactUnwind]) ])# FP_PROG_LD_NO_COMPACT_UNWIND # FP_PROG_LD_FILELIST # ------------------- # Sets the output variable LdHasFilelist to YES if ld supports # -filelist, or NO otherwise. AC_DEFUN([FP_PROG_LD_FILELIST], [ AC_CACHE_CHECK([whether ld understands -filelist], [fp_cv_ld_has_filelist], [ echo 'int foo() { return 0; }' > conftest1.c echo 'int bar() { return 0; }' > conftest2.c ${CC-cc} -c conftest1.c ${CC-cc} -c conftest2.c echo conftest1.o > conftest.o-files echo conftest2.o >> conftest.o-files if ${LdCmd} -r -filelist conftest.o-files -o conftest.o > /dev/null 2>&1 then fp_cv_ld_has_filelist=yes else fp_cv_ld_has_filelist=no fi rm -rf conftest* ]) if test "$fp_cv_ld_has_filelist" = yes; then LdHasFilelist=YES else LdHasFilelist=NO fi AC_SUBST([LdHasFilelist]) ])# FP_PROG_LD_FILELIST # FP_PROG_AR # ---------- # Sets fp_prog_ar to a (non-Cygwin) path to ar. Exits if no ar can be found AC_DEFUN([FP_PROG_AR], [FP_PATH_PROG([fp_prog_ar], [ar]) if test -z "$fp_prog_ar"; then AC_MSG_ERROR([cannot find ar in your PATH, no idea how to make a library]) fi ])# FP_PROG_AR # FP_PROG_AR_IS_GNU # ----------------- # Sets fp_prog_ar_is_gnu to yes or no, depending on whether it is GNU ar or not. AC_DEFUN([FP_PROG_AR_IS_GNU], [AC_REQUIRE([FP_PROG_AR]) AC_CACHE_CHECK([whether $fp_prog_ar is GNU ar], [fp_cv_prog_ar_is_gnu], [if "$fp_prog_ar" --version 2> /dev/null | grep "GNU" > /dev/null 2>&1; then fp_cv_prog_ar_is_gnu=yes else fp_cv_prog_ar_is_gnu=no fi]) fp_prog_ar_is_gnu=$fp_cv_prog_ar_is_gnu AC_SUBST([ArIsGNUAr], [`echo $fp_prog_ar_is_gnu | tr 'a-z' 'A-Z'`]) ])# FP_PROG_AR_IS_GNU # FP_PROG_AR_SUPPORTS_ATFILE # ----------------- # Sets fp_prog_ar_supports_atfile to yes or no, depending on whether # or not it supports the @file syntax AC_DEFUN([FP_PROG_AR_SUPPORTS_ATFILE], [AC_REQUIRE([FP_PROG_AR]) AC_REQUIRE([FP_PROG_AR_ARGS]) AC_CACHE_CHECK([whether $fp_prog_ar supports @file], [fp_cv_prog_ar_supports_atfile], [ rm -f conftest* touch conftest.file echo conftest.file > conftest.atfile echo conftest.file >> conftest.atfile "$fp_prog_ar" $fp_prog_ar_args conftest.a @conftest.atfile > /dev/null 2>&1 fp_prog_ar_supports_atfile_tmp=`"$fp_prog_ar" t conftest.a 2> /dev/null | grep -c conftest.file` rm -f conftest* if test "$fp_prog_ar_supports_atfile_tmp" -eq 2 then fp_cv_prog_ar_supports_atfile=yes else fp_cv_prog_ar_supports_atfile=no fi]) fp_prog_ar_supports_atfile=$fp_cv_prog_ar_supports_atfile AC_SUBST([ArSupportsAtFile], [`echo $fp_prog_ar_supports_atfile | tr 'a-z' 'A-Z'`]) ])# FP_PROG_AR_SUPPORTS_ATFILE # FP_PROG_AR_ARGS # --------------- # Sets fp_prog_ar_args to the arguments for ar and the output variable ArCmd # to a non-Cygwin invocation of ar including these arguments. AC_DEFUN([FP_PROG_AR_ARGS], [AC_REQUIRE([FP_PROG_AR_IS_GNU]) AC_CACHE_CHECK([for ar arguments], [fp_cv_prog_ar_args], [ # GNU ar needs special treatment: it appears to have problems with # object files with the same name if you use the 's' modifier, but # simple 'ar q' works fine, and doesn't need a separate ranlib. if test $fp_prog_ar_is_gnu = yes; then fp_cv_prog_ar_args="q" else touch conftest.dummy for fp_var in clqsZ clqs cqs clq cq ; do rm -f conftest.a if "$fp_prog_ar" $fp_var conftest.a conftest.dummy > /dev/null 2> /dev/null; then fp_cv_prog_ar_args=$fp_var break fi done rm -f conftest* if test -z "$fp_cv_prog_ar_args"; then AC_MSG_ERROR([cannot figure out how to use your $fp_prog_ar]) fi fi]) fp_prog_ar_args=$fp_cv_prog_ar_args AC_SUBST([ArCmd], ["$fp_prog_ar"]) AC_SUBST([ArArgs], ["$fp_prog_ar_args"]) ])# FP_PROG_AR_ARGS # FP_PROG_AR_NEEDS_RANLIB # ----------------------- # Sets the output variable RANLIB_CMD to "ranlib" if it is needed and # found, to "true" otherwise. Sets REAL_RANLIB_CMD to the ranlib program, # even if we don't need ranlib (libffi might still need it). AC_DEFUN([FP_PROG_AR_NEEDS_RANLIB],[ AC_REQUIRE([FP_PROG_AR_IS_GNU]) AC_REQUIRE([FP_PROG_AR_ARGS]) AC_REQUIRE([AC_PROG_CC]) AC_PROG_RANLIB if test $fp_prog_ar_is_gnu = yes then fp_cv_prog_ar_needs_ranlib=no elif test "$TargetOS_CPP" = "darwin" then # It's quite tedious to check for Apple's crazy timestamps in # .a files, so we hardcode it. fp_cv_prog_ar_needs_ranlib=yes else case $fp_prog_ar_args in *s*) fp_cv_prog_ar_needs_ranlib=no;; *) fp_cv_prog_ar_needs_ranlib=yes;; esac fi # workaround for AC_PROG_RANLIB which sets RANLIB to `:' when # ranlib is missing on the target OS. The problem is that # ghc-cabal cannot execute `:' which is a shell built-in but can # execute `true' which is usually simple program supported by the # OS. # Fixes #8795 if test "$RANLIB" = ":" then RANLIB="true" fi REAL_RANLIB_CMD="$RANLIB" if test $fp_cv_prog_ar_needs_ranlib = yes then RANLIB_CMD="$RANLIB" else RANLIB_CMD="true" fi AC_SUBST([REAL_RANLIB_CMD]) AC_SUBST([RANLIB_CMD]) ])# FP_PROG_AR_NEEDS_RANLIB # FP_GCC_VERSION # ----------- # Extra testing of the result AC_PROG_CC, testing the gcc version no. Sets the # output variable GccVersion. AC_DEFUN([FP_GCC_VERSION], [AC_REQUIRE([AC_PROG_CC]) if test -z "$CC" then AC_MSG_ERROR([gcc is required]) fi GccLT34=NO GccLT46=NO AC_CACHE_CHECK([version of gcc], [fp_cv_gcc_version], [ fp_cv_gcc_version="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [[^0-9]]*\([[0-9.]]*\).*/\1/g'`" FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [3.0], [AC_MSG_ERROR([Need at least gcc version 3.0 (3.4+ recommended)])]) # See #2770: gcc 2.95 doesn't work any more, apparently. There probably # isn't a very good reason for that, but for now just make configure # fail. FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [3.4], GccLT34=YES) FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [4.6], GccLT46=YES) ]) AC_SUBST([GccVersion], [$fp_cv_gcc_version]) AC_SUBST(GccLT34) AC_SUBST(GccLT46) ])# FP_GCC_VERSION dnl Check to see if the C compiler is clang or llvm-gcc dnl GccIsClang=NO AC_DEFUN([FP_CC_LLVM_BACKEND], [AC_REQUIRE([AC_PROG_CC]) AC_MSG_CHECKING([whether C compiler is clang]) $CC -x c /dev/null -dM -E > conftest.txt 2>&1 if grep "__clang__" conftest.txt >/dev/null 2>&1; then AC_SUBST([CC_CLANG_BACKEND], [1]) AC_SUBST([CC_LLVM_BACKEND], [1]) GccIsClang=YES AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) AC_MSG_CHECKING([whether C compiler has an LLVM back end]) if grep "__llvm__" conftest.txt >/dev/null 2>&1; then AC_SUBST([CC_CLANG_BACKEND], [0]) AC_SUBST([CC_LLVM_BACKEND], [1]) AC_MSG_RESULT([yes]) else AC_SUBST([CC_CLANG_BACKEND], [0]) AC_SUBST([CC_LLVM_BACKEND], [0]) AC_MSG_RESULT([no]) fi fi AC_SUBST(GccIsClang) rm -f conftest.txt ]) dnl Small feature test for perl version. Assumes PerlCmd dnl contains path to perl binary. dnl dnl (Perl versions prior to v5.6 does not contain the string "v5"; dnl instead they display version strings such as "version 5.005".) dnl AC_DEFUN([FPTOOLS_CHECK_PERL_VERSION], [$PerlCmd -v >conftest.out 2>&1 if grep "v5" conftest.out >/dev/null 2>&1; then : else AC_MSG_ERROR([your version of perl probably won't work, try upgrading it.]) fi rm -fr conftest* ]) # FP_CHECK_PROG(VARIABLE, PROG-TO-CHECK-FOR, # [VALUE-IF-NOT-FOUND], [PATH], [REJECT]) # ----------------------------------------------------- # HACK: A small wrapper around AC_CHECK_PROG, setting VARIABLE to the full path # of PROG-TO-CHECK-FOR when found. AC_DEFUN([FP_CHECK_PROG], [AC_CHECK_PROG([$1], [$2], [$as_dir/$ac_word$ac_exec_ext], [$3], [$4], [$5])][]dnl )# FP_CHECK_PROC # FP_PROG_FIND # ------------ # Find a non-WinDoze version of the "find" utility. AC_DEFUN([FP_PROG_FIND], [AC_PATH_PROGS([fp_prog_find], [gfind find], find) echo foo > conftest.txt $fp_prog_find conftest.txt -print > conftest.out 2>&1 if grep '^conftest.txt$' conftest.out > /dev/null 2>&1 ; then # OK, looks like a real "find". case $HostPlatform in *mingw32) if test x${OSTYPE} != xmsys then fp_prog_find="`cygpath --mixed ${fp_prog_find}`" AC_MSG_NOTICE([normalized find command to $fp_prog_find]) fi ;; *) ;; esac FindCmd="$fp_prog_find" else # Found a poor WinDoze version of "find", ignore it. AC_MSG_WARN([$fp_prog_find looks like a non-*nix find, ignoring it]) FP_CHECK_PROG([FindCmd], [find], [], [], [$fp_prog_find]) fi rm -f conftest.txt conftest.out AC_SUBST([FindCmd])[]dnl ])# FP_PROG_FIND # FP_PROG_SORT # ------------ # Find a Unix-like sort AC_DEFUN([FP_PROG_SORT], [AC_PATH_PROG([fp_prog_sort], [sort]) echo conwip > conftest.txt $fp_prog_sort -f conftest.txt > conftest.out 2>&1 if grep 'conwip' conftest.out > /dev/null 2>&1 ; then # The goods SortCmd="$fp_prog_sort" else # Summink else..pick next one. AC_MSG_WARN([$fp_prog_sort looks like a non-*nix sort, ignoring it]) FP_CHECK_PROG([SortCmd], [sort], [], [], [$fp_prog_sort]) fi rm -f conftest.txt conftest.out AC_SUBST([SortCmd])[]dnl ])# FP_PROG_SORT dnl dnl FPTOOLS_NOCACHE_CHECK prints a message, then sets the dnl values of the second argument to the result of running dnl the commands given by the third. It does not cache its dnl result, so it is suitable for checks which should be dnl run every time. dnl AC_DEFUN([FPTOOLS_NOCACHE_CHECK], [AC_MSG_CHECKING([$1]) $3 AC_MSG_RESULT([$][$2]) ]) dnl dnl FPTOOLS_GHC_VERSION(version) dnl FPTOOLS_GHC_VERSION(major, minor [, patchlevel]) dnl FPTOOLS_GHC_VERSION(version, major, minor, patchlevel) dnl dnl Test for version of installed ghc. Uses $GHC. dnl [original version pinched from c2hs] dnl AC_DEFUN([FPTOOLS_GHC_VERSION], [FPTOOLS_NOCACHE_CHECK([version of ghc], [fptools_version_of_ghc], ["${WithGhc-ghc}" --version > conftestghc 2>&1 cat conftestghc >&AS_MESSAGE_LOG_FD #Useless Use Of cat award... fptools_version_of_ghc=`cat conftestghc | sed -n -e 's/, patchlevel *\([[0-9]]\)/.\1/;s/.* version \([[0-9]][[0-9.]]*\).*/\1/p'` rm -fr conftest* if test "[$]fptools_version_of_ghc" = "" then fptools_version_of_ghc='unknown' fi fptools_version_of_ghc[_major]=`echo [$]fptools_version_of_ghc | sed -e 's/^\([[0-9]]\).*/\1/'` fptools_version_of_ghc[_minor]=`echo [$]fptools_version_of_ghc | sed -e 's/^[[0-9]]\.\([[0-9]]*\).*/\1/'` fptools_version_of_ghc[_pl]=`echo [$]fptools_version_of_ghc | sed -n -e 's/^[[0-9]]\.[[0-9]]*\.\([[0-9]]*\)/\1/p'` # if test "[$]fptools_version_of_ghc[_pl]" = "" then fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor]" fptools_version_of_ghc[_pl]="0" else fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor].[$]fptools_version_of_ghc[_pl]" fi # ifelse($#, [1], [dnl [$1]="[$]fptools_version_of_ghc[_all]" ], $#, [2], [dnl [$1]="[$]fptools_version_of_ghc[_major]" [$2]="[$]fptools_version_of_ghc[_minor]" ], $#, [3], [dnl [$1]="[$]fptools_version_of_ghc[_major]" [$2]="[$]fptools_version_of_ghc[_minor]" [$3]="[$]fptools_version_of_ghc[_pl]" ], $#, [4], [dnl [$1]="[$]fptools_version_of_ghc[_all]" [$2]="[$]fptools_version_of_ghc[_major]" [$3]="[$]fptools_version_of_ghc[_minor]" [$4]="[$]fptools_version_of_ghc[_pl]" ]) ]) ])dnl # FP_CHECK_FUNC(FUNCTION, PROLOGUE, BODY, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # --------------------------------------------------------------------------------- # A variant of AC_CHECK_FUNCS, limited to a single FUNCTION, but with the # additional flexibility of specifying the PROLOGUE and BODY. AC_DEFUN([FP_CHECK_FUNC], [AS_VAR_PUSHDEF([fp_func], [fp_cv_func_$1])dnl AC_CACHE_CHECK([for $1], fp_func, [AC_LINK_IFELSE([AC_LANG_PROGRAM([$2], [$3])], [AS_VAR_SET(fp_func, yes)], [AS_VAR_SET(fp_func, no)])]) AS_IF([test AS_VAR_GET(fp_func) = yes], [AC_DEFINE(AS_TR_CPP(HAVE_$1), [1], [Define to 1 if you have the `]$1[' function.]) $4], [$5])dnl AS_VAR_POPDEF([fp_func])dnl ])# FP_CHECK_FUNC # FP_GEN_DOCBOOK_XML # ------------------ # Generates a DocBook XML V4.5 document in conftest.xml. # # It took a lot of experimentation to find a document that will cause # xsltproc to fail with an error code when the relevant # stylesheets/DTDs are not found. I couldn't make xsltproc fail with # a single-file document, it seems a multi-file document is needed. # -- SDM 2009-06-03 # AC_DEFUN([FP_GEN_DOCBOOK_XML], [rm -f conftest.xml conftest-book.xml cat > conftest.xml << EOF ]]> &conftest-book; EOF cat >conftest-book.xml << EOF A DocBook “Test Document” A Chapter Title This is a paragraph, referencing . Another Chapter Title This is another paragraph, referencing . EOF ]) # FP_GEN_DOCBOOK_XML # FP_PROG_DBLATEX # ---------------- # Sets the output variable DblatexCmd to the full path of dblatex, # which we use for building PDF and PS docs. # DblatexCmd is empty if dblatex could not be found. AC_DEFUN([FP_PROG_DBLATEX], [FP_PATH_PROG([DblatexCmd], [dblatex]) if test -z "$DblatexCmd"; then AC_MSG_WARN([cannot find dblatex in your PATH, you will not be able to build the PDF and PS documentation]) fi ])# FP_PROG_DBLATEX # FP_PROG_XSLTPROC # ---------------- # Sets the output variable XsltprocCmd to the full path of the XSLT processor # xsltproc. XsltprocCmd is empty if xsltproc could not be found. AC_DEFUN([FP_PROG_XSLTPROC], [FP_PATH_PROG([XsltprocCmd], [xsltproc]) if test -z "$XsltprocCmd"; then AC_MSG_WARN([cannot find xsltproc in your PATH, you will not be able to build the HTML documentation]) fi ])# FP_PROG_XSLTPROC # FP_DOCBOOK_XSL # ---------------------------- # Check that we can process a DocBook XML document to HTML using xsltproc. AC_DEFUN([FP_DOCBOOK_XSL], [AC_REQUIRE([FP_PROG_XSLTPROC])dnl if test -n "$XsltprocCmd"; then AC_CACHE_CHECK([for DocBook XSL stylesheet], fp_cv_dir_docbook_xsl, [FP_GEN_DOCBOOK_XML fp_cv_dir_docbook_xsl=no if $XsltprocCmd --nonet http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl conftest.xml > /dev/null 2>&1; then fp_cv_dir_docbook_xsl=yes fi rm -rf conftest*]) fi if test x"$fp_cv_dir_docbook_xsl" = xno; then AC_MSG_WARN([cannot find DocBook XSL stylesheets, you will not be able to build the documentation]) HAVE_DOCBOOK_XSL=NO else HAVE_DOCBOOK_XSL=YES fi AC_SUBST([HAVE_DOCBOOK_XSL]) ])# FP_DOCBOOK_XSL # FP_PROG_XMLLINT # ---------------- # Sets the output variable XmllintCmd to the full path of the XSLT processor # xmllint. XmllintCmd is empty if xmllint could not be found. AC_DEFUN([FP_PROG_XMLLINT], [FP_PATH_PROG([XmllintCmd], [xmllint]) if test -z "$XmllintCmd"; then AC_MSG_WARN([cannot find xmllint in your PATH, you will not be able to validate your documentation]) fi ])# FP_PROG_XMLLINT # FP_CHECK_DOCBOOK_DTD # -------------------- AC_DEFUN([FP_CHECK_DOCBOOK_DTD], [AC_REQUIRE([FP_PROG_XMLLINT])dnl if test -n "$XmllintCmd"; then AC_MSG_CHECKING([for DocBook DTD]) FP_GEN_DOCBOOK_XML if $XmllintCmd --nonet --valid --noout conftest.xml ; then AC_MSG_RESULT([ok]) else AC_MSG_RESULT([failed]) AC_MSG_WARN([cannot find a DTD for DocBook XML V4.5, you will not be able to validate your documentation]) AC_MSG_WARN([check your XML_CATALOG_FILES environment variable and/or /etc/xml/catalog]) fi rm -rf conftest* fi ])# FP_CHECK_DOCBOOK_DTD # FP_PROG_GHC_PKG # ---------------- # Try to find a ghc-pkg matching the ghc mentioned in the environment variable # WithGhc. Sets the output variable GhcPkgCmd. AC_DEFUN([FP_PROG_GHC_PKG], [AC_CACHE_CHECK([for ghc-pkg matching $WithGhc], fp_cv_matching_ghc_pkg, [ # If we are told to use ghc-stage2, then we're using an in-tree # compiler. In this case, we just want ghc-pkg, not ghc-pkg-stage2, # so we sed off -stage[0-9]$. However, if we are told to use # ghc-6.12.1 then we want to use ghc-pkg-6.12.1, so we keep any # other suffix. fp_ghc_pkg_guess=`echo $WithGhc | sed -e 's/-stage@<:@0-9@:>@$//' -e 's,ghc\(@<:@^/\\@:>@*\)$,ghc-pkg\1,'` if "$fp_ghc_pkg_guess" list > /dev/null 2>&1; then fp_cv_matching_ghc_pkg=$fp_ghc_pkg_guess else AC_MSG_ERROR([Cannot find matching ghc-pkg]) fi]) GhcPkgCmd=$fp_cv_matching_ghc_pkg AC_SUBST([GhcPkgCmd]) ])# FP_PROG_GHC_PKG # FP_GCC_EXTRA_FLAGS # ------------------ # Determine which extra flags we need to pass gcc when we invoke it # to compile .hc code. # # -fwrapv is needed for gcc to emit well-behaved code in the presence of # integer wrap around. (Trac #952) # AC_DEFUN([FP_GCC_EXTRA_FLAGS], [AC_REQUIRE([FP_GCC_VERSION]) AC_CACHE_CHECK([for extra options to pass gcc when compiling via C], [fp_cv_gcc_extra_opts], [fp_cv_gcc_extra_opts= FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.4], [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fwrapv"], []) ]) AC_SUBST([GccExtraViaCOpts],$fp_cv_gcc_extra_opts) ]) # FP_SETUP_PROJECT_VERSION # --------------------- AC_DEFUN([FP_SETUP_PROJECT_VERSION], [ if test "$RELEASE" = "NO"; then AC_MSG_CHECKING([for GHC version date]) if test -f VERSION_DATE; then PACKAGE_VERSION=${PACKAGE_VERSION}.`cat VERSION_DATE` AC_MSG_RESULT(given $PACKAGE_VERSION) elif test -d .git; then changequote(, )dnl ver_date=`git log -n 1 --date=short --pretty=format:%ci | cut -d ' ' -f 1 | tr -d -` if echo $ver_date | grep '^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$' 2>&1 >/dev/null; then true; else changequote([, ])dnl AC_MSG_ERROR([failed to detect version date: check that git is in your path]) fi PACKAGE_VERSION=${PACKAGE_VERSION}.$ver_date AC_MSG_RESULT(inferred $PACKAGE_VERSION) elif test -f VERSION; then PACKAGE_VERSION=`cat VERSION` AC_MSG_RESULT(given $PACKAGE_VERSION) else AC_MSG_WARN([cannot determine snapshot version: no .git directory and no VERSION file]) dnl We'd really rather this case didn't happen, but it might dnl do (in particular, people using lndir trees may find that dnl the build system can't find any other date). If it does dnl happen, then we use the current date. dnl This way we get some idea about how recent a build is. dnl It also means that packages built for 2 different builds dnl will probably use different version numbers, so things are dnl less likely to go wrong. PACKAGE_VERSION=${PACKAGE_VERSION}.`date +%Y%m%d` fi fi # Some renamings AC_SUBST([ProjectName], [$PACKAGE_NAME]) AC_SUBST([ProjectVersion], [$PACKAGE_VERSION]) # Split PACKAGE_VERSION into (possibly empty) parts VERSION_MAJOR=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/` VERSION_TMP=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3'/` VERSION_MINOR=`echo $VERSION_TMP | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/` ProjectPatchLevel=`echo $VERSION_TMP | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3'/` # Calculate project version as an integer, using 2 digits for minor version case $VERSION_MINOR in ?) ProjectVersionInt=${VERSION_MAJOR}0${VERSION_MINOR} ;; ??) ProjectVersionInt=${VERSION_MAJOR}${VERSION_MINOR} ;; *) AC_MSG_ERROR([bad minor version in $PACKAGE_VERSION]) ;; esac AC_SUBST([ProjectVersionInt]) # The project patchlevel is zero unless stated otherwise test -z "$ProjectPatchLevel" && ProjectPatchLevel=0 # Remove dots from the patch level; this allows us to have versions like 6.4.1.20050508 ProjectPatchLevel=`echo $ProjectPatchLevel | sed 's/\.//'` AC_SUBST([ProjectPatchLevel]) ])# FP_SETUP_PROJECT_VERSION # Check for a working timer_create(). We need a pretty detailed check # here, because there exist partially-working implementations of # timer_create() in certain versions of Linux (see bug #1933). # AC_DEFUN([FP_CHECK_TIMER_CREATE],[ AC_CHECK_FUNC([timer_create],[HAVE_timer_create=yes],[HAVE_timer_create=no]) if test "$HAVE_timer_create" = "yes" then if test "$cross_compiling" = "yes" then # We can't test timer_create when we're cross-compiling, so we # optimistiaclly assume that it actually works properly. AC_DEFINE([USE_TIMER_CREATE], 1, [Define to 1 if we can use timer_create(CLOCK_PROCESS_CPUTIME_ID,...)]) else AC_CACHE_CHECK([for a working timer_create(CLOCK_REALTIME)], [fptools_cv_timer_create_works], [AC_TRY_RUN([ #include #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_TIME_H #include #endif #ifdef HAVE_SIGNAL_H #include #endif #ifdef HAVE_UNISTD_H #include #endif static volatile int tock = 0; static void handler(int i) { tock = 1; } static void timeout(int i) { // timer_settime() has been known to hang, so just in case // we install a 1-second timeout (see #2257) exit(99); } int main(int argc, char *argv[]) { struct sigevent ev; timer_t timer; struct itimerspec it; struct sigaction action; int m,n,count = 0; ev.sigev_notify = SIGEV_SIGNAL; ev.sigev_signo = SIGVTALRM; action.sa_handler = handler; action.sa_flags = 0; sigemptyset(&action.sa_mask); if (sigaction(SIGVTALRM, &action, NULL) == -1) { fprintf(stderr,"SIGVTALRM problem\n"); exit(3); } action.sa_handler = timeout; action.sa_flags = 0; sigemptyset(&action.sa_mask); if (sigaction(SIGALRM, &action, NULL) == -1) { fprintf(stderr,"SIGALRM problem\n"); exit(3); } alarm(1); if (timer_create(CLOCK_PROCESS_CPUTIME_ID, &ev, &timer) != 0) { fprintf(stderr,"No CLOCK_PROCESS_CPUTIME_ID timer\n"); exit(1); } it.it_value.tv_sec = 0; it.it_value.tv_nsec = 1; it.it_interval = it.it_value; if (timer_settime(timer, 0, &it, NULL) != 0) { fprintf(stderr,"settime problem\n"); exit(4); } tock = 0; for(n = 3; n < 20000; n++){ for(m = 2; m <= n/2; m++){ if (!(n%m)) count++; if (tock) goto out; } } out: if (!tock) { fprintf(stderr,"no CLOCK_PROCESS_CPUTIME_ID signal\n"); exit(5); } timer_delete(timer); if (timer_create(CLOCK_REALTIME, &ev, &timer) != 0) { fprintf(stderr,"No CLOCK_REALTIME timer\n"); exit(2); } it.it_value.tv_sec = 0; it.it_value.tv_nsec = 1000000; it.it_interval = it.it_value; if (timer_settime(timer, 0, &it, NULL) != 0) { fprintf(stderr,"settime problem\n"); exit(4); } tock = 0; usleep(3000); if (!tock) { fprintf(stderr,"no CLOCK_REALTIME signal\n"); exit(5); } timer_delete(timer); exit(0); } ], [fptools_cv_timer_create_works=yes], [fptools_cv_timer_create_works=no]) ]) case $fptools_cv_timer_create_works in yes) AC_DEFINE([USE_TIMER_CREATE], 1, [Define to 1 if we can use timer_create(CLOCK_PROCESS_CPUTIME_ID,...)]);; esac fi fi ]) # FP_ICONV # ------------- AC_DEFUN([FP_ICONV], [ dnl-------------------------------------------------------------------- dnl * Deal with arguments telling us iconv is somewhere odd dnl-------------------------------------------------------------------- dnl Note: ICONV_LIB_DIRS and ICONV_INCLUDE_DIRS are not predefined dnl to the empty string to allow them to be overridden from the dnl environment. AC_ARG_WITH([iconv-includes], [AC_HELP_STRING([--with-iconv-includes], [directory containing iconv.h])], [ICONV_INCLUDE_DIRS=$withval]) AC_ARG_WITH([iconv-libraries], [AC_HELP_STRING([--with-iconv-libraries], [directory containing iconv library])], [ICONV_LIB_DIRS=$withval]) AC_SUBST(ICONV_INCLUDE_DIRS) AC_SUBST(ICONV_LIB_DIRS) ])# FP_ICONV # FP_GMP # ------------- AC_DEFUN([FP_GMP], [ dnl-------------------------------------------------------------------- dnl * Deal with arguments telling us gmp is somewhere odd dnl-------------------------------------------------------------------- AC_ARG_WITH([gmp-includes], [AC_HELP_STRING([--with-gmp-includes], [directory containing gmp.h])], [GMP_INCLUDE_DIRS=$withval]) AC_ARG_WITH([gmp-libraries], [AC_HELP_STRING([--with-gmp-libraries], [directory containing gmp library])], [GMP_LIB_DIRS=$withval]) AC_SUBST(GMP_INCLUDE_DIRS) AC_SUBST(GMP_LIB_DIRS) ])# FP_GMP # -------------------------------------------------------------- # Calculate absolute path to build tree # -------------------------------------------------------------- AC_DEFUN([FP_INTREE_GHC_PWD],[ AC_MSG_NOTICE(Building in-tree ghc-pwd) dnl This would be dnl make -C utils/ghc-pwd clean && make -C utils/ghc-pwd dnl except we don't want to have to know what make is called. Sigh. rm -rf utils/ghc-pwd/dist-boot mkdir utils/ghc-pwd/dist-boot dnl If special linker flags are needed to build things, then allow dnl the user to pass them in via LDFLAGS. changequote(, )dnl GHC_LDFLAGS=`echo $LDFLAGS | sed 's/\(^\| \)\([^ ]\)/\1-optl\2/g'` changequote([, ])dnl if ! "$WithGhc" $GHC_LDFLAGS -v0 -no-user-$GHC_PACKAGE_DB_FLAG -hidir utils/ghc-pwd/dist-boot -odir utils/ghc-pwd/dist-boot -stubdir utils/ghc-pwd/dist-boot --make utils/ghc-pwd/Main.hs -o utils/ghc-pwd/dist-boot/ghc-pwd then AC_MSG_ERROR([Building ghc-pwd failed]) fi GHC_PWD=utils/ghc-pwd/dist-boot/ghc-pwd ]) AC_DEFUN([FP_BINDIST_GHC_PWD],[ GHC_PWD=utils/ghc-pwd/dist-install/build/tmp/ghc-pwd-bindist ]) AC_DEFUN([FP_FIND_ROOT],[ AC_MSG_CHECKING(for path to top of build tree) hardtop=`$GHC_PWD` dnl Remove common automounter nonsense hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|'` if ! test -d "$hardtop"; then AC_MSG_ERROR([cannot determine current directory]) fi dnl We don't support building in directories with spaces. case "$hardtop" in *' '*) AC_MSG_ERROR([ The build system does not support building in a directory containing space characters. Suggestion: move the build tree somewhere else.]) ;; esac AC_SUBST(hardtop) AC_MSG_RESULT($hardtop) ]) # GHC_CONVERT_CPU(cpu, target_var) # -------------------------------- # converts cpu from gnu to ghc naming, and assigns the result to $target_var AC_DEFUN([GHC_CONVERT_CPU],[ case "$1" in aarch64*) $2="aarch64" ;; alpha*) $2="alpha" ;; arm*) $2="arm" ;; hppa1.1*) $2="hppa1_1" ;; hppa*) $2="hppa" ;; i386|i486|i586|i686) $2="i386" ;; ia64) $2="ia64" ;; m68k*) $2="m68k" ;; mipseb*) $2="mipseb" ;; mipsel*) $2="mipsel" ;; mips*) $2="mips" ;; powerpc64le*) $2="powerpc64le" ;; powerpc64*) $2="powerpc64" ;; powerpc*) $2="powerpc" ;; rs6000) $2="rs6000" ;; s390x*) $2="s390x" ;; s390*) $2="s390" ;; sparc64*) $2="sparc64" ;; sparc*) $2="sparc" ;; vax) $2="vax" ;; x86_64|amd64) $2="x86_64" ;; *) echo "Unknown CPU $1" exit 1 ;; esac ]) # GHC_CONVERT_VENDOR(vendor, target_var) # -------------------------------- # converts vendor from gnu to ghc naming, and assigns the result to $target_var AC_DEFUN([GHC_CONVERT_VENDOR],[ case "$1" in pc|gentoo|w64) # like i686-pc-linux-gnu, i686-gentoo-freebsd8, x86_64-w64-mingw32 $2="unknown" ;; softfloat) # like armv5tel-softfloat-linux-gnueabi $2="unknown" ;; *) #pass thru by default $2="$1" ;; esac ]) # GHC_CONVERT_OS(os, converted_cpu, target_var) # -------------------------------- # converts os from gnu to ghc naming, and assigns the result to $target_var AC_DEFUN([GHC_CONVERT_OS],[ case "$1-$2" in darwin10-arm|darwin11-i386) $3="ios" ;; *) case "$1" in linux-android*) $3="linux-android" ;; linux-*|linux) $3="linux" ;; # As far as I'm aware, none of these have relevant variants freebsd|netbsd|openbsd|dragonfly|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix|haiku) $3="$1" ;; freebsd*) # like i686-gentoo-freebsd7 # i686-gentoo-freebsd8 # i686-gentoo-freebsd8.2 $3="freebsd" ;; nto-qnx*) $3="nto-qnx" ;; *) echo "Unknown OS $1" exit 1 ;; esac ;; esac ]) # BOOTSTRAPPING_GHC_INFO_FIELD # -------------------------------- # Set the variable $1 to the value of the ghc --info field $2. AC_DEFUN([BOOTSTRAPPING_GHC_INFO_FIELD],[ $1=`"$WithGhc" --info | grep "^ ,(\"$2\"," | sed -e 's/.*","//' -e 's/")$//'` tmp=${$1#\$topdir/} if test "${$1}" != "$tmp" then topdir=`"$WithGhc" --print-libdir | sed 's#\\\\#/#g'` $1="$topdir/$tmp" fi AC_SUBST($1) ]) # LIBRARY_VERSION(lib, [dir]) # -------------------------------- # Gets the version number of a library. # If $1 is ghc-prim, then we define LIBRARY_ghc_prim_VERSION as 1.2.3 # $2 points to the directory under libraries/ AC_DEFUN([LIBRARY_VERSION],[ dir=m4_default([$2],[$1]) LIBRARY_[]translit([$1], [-], [_])[]_VERSION=`grep -i "^version:" libraries/${dir}/$1.cabal | sed "s/.* //"` AC_SUBST(LIBRARY_[]translit([$1], [-], [_])[]_VERSION) ]) # XCODE_VERSION() # -------------------------------- # Gets the version number of XCode, if on a Mac AC_DEFUN([XCODE_VERSION],[ if test "$TargetOS_CPP" = "darwin" then AC_MSG_CHECKING(XCode version) XCodeVersion=`xcodebuild -version | grep Xcode | sed "s/Xcode //"` # Old XCode versions don't actually give the XCode version if test "$XCodeVersion" = "" then AC_MSG_RESULT(not found (too old?)) XCodeVersion1=0 XCodeVersion2=0 else AC_MSG_RESULT($XCodeVersion) XCodeVersion1=`echo "$XCodeVersion" | sed 's/\..*//'` changequote(, )dnl XCodeVersion2=`echo "$XCodeVersion" | sed 's/[^.]*\.\([^.]*\).*/\1/'` changequote([, ])dnl AC_MSG_NOTICE(XCode version component 1: $XCodeVersion1) AC_MSG_NOTICE(XCode version component 2: $XCodeVersion2) fi fi ]) # FIND_LLVM_PROG() # -------------------------------- # Find where the llvm tools are. We have a special function to handle when they # are installed with a version suffix (e.g., llc-3.1). # # $1 = the variable to set # $2 = the with option name # $3 = the command to look for # AC_DEFUN([FIND_LLVM_PROG],[ FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL([$1], [$2], [$3]) if test "$$1" == ""; then save_IFS=$IFS IFS=":;" for p in ${PATH}; do if test -d "${p}"; then $1=`${FindCmd} "${p}" -type f -perm +111 -maxdepth 1 -regex '.*/$3-[[0-9]]\.[[0-9]]' -or -type l -perm +111 -maxdepth 1 -regex '.*/$3-[[0-9]]\.[[0-9]]' | ${SortCmd} -n | tail -1` if test -n "$$1"; then break fi fi done IFS=$save_IFS fi ]) # FIND_GCC() # -------------------------------- # Finds where gcc is # # $1 = the variable to set # $2 = the with option name # $3 = the command to look for AC_DEFUN([FIND_GCC],[ if test "$TargetOS_CPP" = "darwin" && test "$XCodeVersion1" -eq 4 && test "$XCodeVersion2" -lt 2 then # In Xcode 4.1, 'gcc-4.2' is the gcc legacy backend (rather # than the LLVM backend). We prefer the legacy gcc, but in # Xcode 4.2 'gcc-4.2' was removed. FP_ARG_WITH_PATH_GNU_PROG([$1], [gcc-4.2], [gcc-4.2]) elif test "$windows" = YES then $1="$CC" else FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL([$1], [$2], [$3]) # From Xcode 5 on, OS X command line tools do not include gcc # anymore. Use clang. if test -z "$$1" then FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL([$1], [clang], [clang]) fi if test -z "$$1" then AC_MSG_ERROR([cannot find $3 nor clang in your PATH]) fi fi AC_SUBST($1) ]) AC_DEFUN([MAYBE_OVERRIDE_STAGE0],[ if test ! -z "$With_$1" -a "$CrossCompiling" != "YES"; then AC_MSG_NOTICE([Not cross-compiling, so --with-$1 also sets $2]) $2=$With_$1 fi ]) # LocalWords: fi