/
configure.in
4763 lines (4461 loc) · 151 KB
/
configure.in
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dnl Process this file with autoconf to produce a configure script.
AC_INIT()
{
AC_CONFIG_AUX_DIR(tool)
AC_PREREQ(2.67)
AC_DEFUN([RUBY_PREREQ_AC],
[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]), [$1]), [-1],
AC_MSG_ERROR([Autoconf version ]$1[ or higher is required]$2))])
AC_DISABLE_OPTION_CHECKING
AC_ARG_VAR([cflags], [additional CFLAGS])
AC_ARG_VAR([cppflags], [additional CPPFLAGS])
AC_ARG_VAR([cxxflags], [additional CXXFLAGS])
AC_DEFUN([RUBY_RM_RECURSIVE], [
m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]), [2.70]), [-1], [
# suppress error messages, rm: cannot remove 'conftest.dSYM', from
# AC_EGREP_CPP with CFLAGS=-g on Darwin.
#
# TODO: remove this hack when AC_PREREQ() becomes 2.70 or later.
AS_CASE([$build_os], [darwin*], [
rm() {
rm_recursive=''
for arg do
AS_CASE("$arg",
[--*], [],
[-*r*], [break],
[conftest.*], [AS_IF([test -d "$arg"], [rm_recursive=-r; break])],
[])
done
command rm $rm_recursive "[$]@"
}
])])])
{ # environment section
HAVE_BASERUBY=yes
AC_ARG_WITH(baseruby,
AS_HELP_STRING([--with-baseruby=RUBY], [use RUBY as baseruby; RUBY is the pathname of ruby]),
[AS_CASE(["$withval"],
[*ruby*],[BASERUBY=$withval],
[no],[HAVE_BASERUBY=no],
[AC_MSG_ERROR(need ruby)])
],
[
AC_PATH_PROG([BASERUBY], [ruby], [false])
])
AS_IF([test "$HAVE_BASERUBY" = yes -a "`RUBYOPT=- $BASERUBY -e 'print 42' 2>/dev/null`" = 42], [
AS_IF([test "`RUBYOPT=- $BASERUBY --disable=gems -e 'print 42' 2>/dev/null`" = 42], [
BASERUBY="$BASERUBY --disable=gems"
])
$BASERUBY -C "$srcdir" tool/downloader.rb -d tool -e gnu config.guess config.sub
], [
BASERUBY="echo executable host ruby is required. use --with-baseruby option.; false"
HAVE_BASERUBY=no
])
AC_SUBST(BASERUBY)
AC_SUBST(HAVE_BASERUBY)
: ${GIT=git}
HAVE_GIT=yes
AC_ARG_WITH(git,
AS_HELP_STRING([--without-git], [never use git]),
[AS_CASE([$withval],
[no], [GIT=never-use HAVE_GIT=no],
[yes], [],
[GIT=$withval])])
AS_IF([test x"$HAVE_GIT" = xyes], [command -v "$GIT" > /dev/null || HAVE_GIT=no])
AC_SUBST(GIT)
AC_SUBST(HAVE_GIT)
AC_DEFUN([RUBY_MINGW32],
[AS_CASE(["$host_os"],
[cygwin*], [
AC_CACHE_CHECK(for mingw32 environment, rb_cv_mingw32,
[AC_TRY_CPP([
#ifndef __MINGW32__
# error
#endif
], rb_cv_mingw32=yes,rb_cv_mingw32=no)
rm -f conftest*])
AS_IF([test "$rb_cv_mingw32" = yes], [
target_os="mingw32"
: ${ac_tool_prefix:="`expr "$CC" : ['\(.*-\)g\?cc[^/]*$']`"}
])
])
AS_CASE(["$target_os"], [mingw*msvc], [
target_os="`echo ${target_os} | sed 's/msvc$//'`"
])
AS_CASE(["$target_cpu-$target_os"], [x86_64-mingw*], [
target_cpu=x64
])
])
AC_DEFUN([RUBY_NACL],
[
AS_CASE(["${host_os}"],
[nacl], [
ac_cv_exeext=.nexe
host_vendor=chromium
ac_cv_host=chromium
AC_MSG_CHECKING([wheather \$NACL_SDK_ROOT is set])
AS_IF([test x"${NACL_SDK_ROOT}" = x], [
AC_MSG_RESULT([no])
AC_MSG_ERROR([You need to set \$NACL_SDK_ROOT environment variable to build for NativeClient])
])
AC_MSG_RESULT([yes])
nacl_cv_build_variant=glibc
AC_ARG_WITH(newlib,
AS_HELP_STRING([--with-newlib], [uses newlib version of NativeClient SDK]),
[AS_CASE([$withval],
[no], [nacl_cv_build_variant=glibc],
[yes], [nacl_cv_build_variant=newlib])])
AS_CASE(["$target_cpu"],
[x86_64], [nacl_cv_cpu_nick=x86
nacl_cv_cpu_nick2=x86_64],
[i?86], [nacl_cv_cpu_nick=x86
nacl_cv_cpu_nick2=x86_32],
[le32], [nacl_cv_cpu_nick=pnacl
nacl_cv_cpu_nick2=pnacl
ac_cv_exeext=.pexe],
[nacl_cv_cpu_nick=$target_cpu])
AS_CASE(["$build_os"],
[linux*], [nacl_cv_os_nick=linux],
[darwin*], [nacl_cv_os_nick=mac],
[cygwin*|mingw*], [nacl_cv_os_nick=win],
[nacl_cv_os_nick=$build_os])
host="$host_cpu-chromium-$host_os-"
ac_tool_prefix="$host_cpu-nacl-"
AC_MSG_CHECKING([NativeClient toolchain])
AS_IF([test x"$nacl_cv_cpu_nick" = xpnacl], [
NACL_TOOLCHAIN="${nacl_cv_os_nick}_pnacl"
ac_tool_prefix=pnacl-
], [test -d \
"${NACL_SDK_ROOT}/toolchain/${nacl_cv_os_nick}_${nacl_cv_cpu_nick}_${nacl_cv_build_variant}"], [
NACL_TOOLCHAIN="${nacl_cv_os_nick}_${nacl_cv_cpu_nick}_${nacl_cv_build_variant}"
], [test -d \
"${NACL_SDK_ROOT}/toolchain/${nacl_cv_os_nick}_x86_${nacl_cv_cpu_nick}/${nacl_cv_build_variant}"], [
NACL_TOOLCHAIN="${nacl_cv_os_nick}_x86_${nacl_cv_cpu_nick}/${nacl_cv_build_variant}"
], [
AS_CASE(
["${nacl_cv_build_variant}"],
[glibc], [AS_IF([test \
-d "${NACL_SDK_ROOT}/toolchain/${nacl_cv_os_nick}_${nacl_cv_cpu_nick}_newlib" \
-a -d "${NACL_SDK_ROOT}/toolchain/${nacl_cv_os_nick}_${nacl_cv_cpu_nick}"], [
NACL_TOOLCHAIN="${nacl_cv_os_nick}_${nacl_cv_cpu_nick}"
])],
[newlib], [ NACL_TOOLCHAIN="${nacl_cv_os_nick}_${nacl_cv_cpu_nick}" ])
])
AS_IF([test ! -e "${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/${ac_tool_prefix}gcc"], [
AS_IF([test "${build_cpu}" = i686 -a -e "${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/nacl-gcc"], [
ac_tool_prefix=nacl-
])
AS_IF([test "${build_cpu}" = x86_64 -a -e "${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/nacl-gcc"], [
ac_tool_prefix=nacl64-
])
])
AS_IF([test -z "${NACL_TOOLCHAIN}"], [
AC_MSG_ERROR([Unrecognized --host and --build combination or NaCl SDK is not installed])
])
AC_MSG_RESULT(${NACL_TOOLCHAIN})
AC_MSG_CHECKING([path to SDK])
AS_IF([! echo -- "${PATH}" | grep -F "${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/bin" > /dev/null], [
PATH="${PATH}:${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/bin"
])
AC_MSG_RESULT(${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/bin)
RUBY_APPEND_OPTIONS(XCFLAGS, '-I$(NACL_SDK_ROOT)/include')
AS_IF([test x"${nacl_cv_cpu_nick}" = xpnacl], [
RUBY_APPEND_OPTIONS(XCFLAGS, '-isystem $(NACL_SDK_ROOT)/include/pnacl')
], [test x"${nacl_cv_build_variant}" = xnewlib], [
RUBY_APPEND_OPTIONS(XCFLAGS, '-isystem $(NACL_SDK_ROOT)/include/newlib')
])
AC_MSG_CHECKING([nacl library path])
AS_IF([test -d "${NACL_SDK_ROOT}/lib/${nacl_cv_build_variant}_${nacl_cv_cpu_nick2}/Release"], [
nacl_cv_libpath="${nacl_cv_build_variant}_${nacl_cv_cpu_nick2}"
], [test -d "${NACL_SDK_ROOT}/lib/${nacl_cv_cpu_nick2}/Release"], [
nacl_cv_libpath="${nacl_cv_cpu_nick2}"
], [
AC_MSG_ERROR([not found])
])
AC_MSG_RESULT([${nacl_cv_libpath}])
RUBY_APPEND_OPTIONS(XLDFLAGS, '-L$(NACL_SDK_ROOT)/'"lib/${nacl_cv_libpath}/Release")
AC_SUBST(NACL_TOOLCHAIN)
AC_SUBST(NACL_SDK_ROOT)
AC_SUBST(NACL_SDK_VARIANT, "${nacl_cv_build_variant}")
AC_SUBST(NACL_LIB_PATH, "${nacl_cv_libpath}")
AC_CHECK_TOOLS(CC, [clang gcc])
AC_CHECK_TOOLS(CXX, [clang++ g++])
])])
AC_DEFUN([RUBY_NACL_CHECK_PEPPER_TYPES],
[AS_CASE(["${host_os}"],
[nacl], [
AC_CHECK_TYPES([struct PPB_Core, struct PPB_Messaging, struct PPB_Var,
struct PPB_URLLoader, struct PPB_URLRequestInfo,
struct PPB_URLResponseInfo, struct PPB_FileRef,
struct PPP_Instance])
])
])
AC_DEFUN([RUBY_CPPOUTFILE],
[AC_CACHE_CHECK(whether ${CPP} accepts -o, rb_cv_cppoutfile,
[save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS='-o conftest-1.i'
rb_cv_cppoutfile=no
AC_TRY_CPP([test-for-cppout],
[grep test-for-cppout conftest-1.i > /dev/null && rb_cv_cppoutfile=yes])
CPPFLAGS="$save_CPPFLAGS"
rm -f conftest*])
AS_IF([test "$rb_cv_cppoutfile" = yes], [
CPPOUTFILE='-o conftest.i'
], [test "$rb_cv_cppoutfile" = no], [
CPPOUTFILE='> conftest.i'
], [test -n "$rb_cv_cppoutfile"], [
CPPOUTFILE="$rb_cv_cppoutfile"
])
AC_SUBST(CPPOUTFILE)])
AC_DEFUN([RUBY_PROG_GNU_LD],
[AC_CACHE_CHECK(whether the linker is GNU ld, rb_cv_prog_gnu_ld,
[AS_IF([`$CC $CFLAGS $CPPFLAGS $LDFLAGS --print-prog-name=ld 2>&1` -v 2>&1 | grep "GNU ld" > /dev/null], [
rb_cv_prog_gnu_ld=yes
], [
rb_cv_prog_gnu_ld=no
])])
GNU_LD=$rb_cv_prog_gnu_ld
AC_SUBST(GNU_LD)])
eval `sed -n ['s/^@%:@define RUBY_API_VERSION_\([A-Z][A-Z_0-9]*\) \([0-9][0-9]*\)/API_\1=\2/p'] $srcdir/include/ruby/version.h`
RUBY_PROGRAM_VERSION=`sed -n 's/^@%:@define RUBY_VERSION "\(.*\)"/\1/p' $srcdir/version.h`
MAJOR=`echo $RUBY_PROGRAM_VERSION | cut -d. -f1`
MINOR=`echo $RUBY_PROGRAM_VERSION | cut -d. -f2`
TEENY=`echo $RUBY_PROGRAM_VERSION | cut -d. -f3`
for v in MAJOR MINOR TEENY; do
AS_IF([eval "test \"\$$v\" = ''"], [
AC_MSG_ERROR(could not determine $v number from version.h)
])
done
AS_IF([test "$MAJOR.$MINOR" != "$API_MAJOR.$API_MINOR"], [
AC_MSG_ERROR([API version $API_MAJOR.$API_MINOR differs from program version $MAJOR.$MINOR])
])
AC_SUBST(MAJOR)
AC_SUBST(MINOR)
AC_SUBST(TEENY)
AC_SUBST(RUBY_PROGRAM_VERSION)
RUBY_PATCHLEVEL=`sed -n 's/^#define RUBY_PATCHLEVEL //p' $srcdir/version.h`
AC_DEFINE(CANONICALIZATION_FOR_MATHN)
dnl checks for alternative programs
AC_CANONICAL_BUILD
RUBY_RM_RECURSIVE
AC_ARG_WITH(gcc,
AS_HELP_STRING([--without-gcc], [never use gcc]),
[
AS_CASE([$withval],
[no], [: ${CC=cc}],
[yes], [: ${CC=gcc}],
[CC=$withval])])
dnl If the user switches compilers, we can't believe the cache
AS_IF([test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"], [
AC_MSG_ERROR(cached CC is different -- throw away $cache_file
(it is also a good idea to do 'make clean' before compiling))
])
test -z "$CC" || ac_cv_prog_CC="$CC"
AS_IF([test "$program_prefix" = NONE], [
program_prefix=
])
AS_IF([test "$prefix" -ef .], [
AC_MSG_ERROR(--prefix cannot be the current working directory.)
])
RUBY_BASE_NAME=`echo ruby | sed "$program_transform_name"`
RUBYW_BASE_NAME=`echo rubyw | sed "$program_transform_name"`
AC_SUBST(RUBY_BASE_NAME)
AC_SUBST(RUBYW_BASE_NAME)
AC_SUBST(RUBY_VERSION_NAME, '${RUBY_BASE_NAME}-${ruby_version}')
AC_CANONICAL_TARGET
test x"$target_alias" = x &&
target_os=`echo $target_os | sed 's/linux-gnu$/linux/;s/linux-gnu/linux-/'`
ac_install_sh='' # unusable for extension libraries.
AC_ARG_WITH(os-version-style,
AS_HELP_STRING([--with-os-version-style=TYPE],
[OS version number for target and target_os [[full]]]
[(full|teeny|minor+0|minor|major+0|major|none)]),
[os_version_style=$withval],
[os_version_style=full
AS_CASE($target_os, [[*[0-9].*]],
[AS_CASE([`/usr/bin/ruby -e 'puts RUBY_PLATFORM' 2>/dev/null`],
[[*-*[0-9].*.0]], [os_version_style=minor+0],
[[*-*[0-9].*.*]], [os_version_style=full],
[[*-*[0-9].0] ], [os_version_style=major+0],
[[*-*[0-9].*] ], [os_version_style=minor],
[[*-*[0-9]] ], [os_version_style=major],
)])
])
os_version_style_transform=
AS_CASE("${os_version_style}",
[full|teeny], [],
[minor+0], [os_version_style_transform=['s/\([0-9]\.[0-9][0-9]*\)\.[0-9][.0-9]*$/\1.0/']],
[minor], [os_version_style_transform=['s/\([0-9]\.[0-9][0-9]*\)\.[0-9][.0-9]*$/\1/']],
[major+0], [os_version_style_transform=['s/\([0-9]\)\.[0-9][.0-9]*$/\1.0/']],
[major], [os_version_style_transform=['s/\([0-9]\)\.[0-9][.0-9]*$/\1/']],
[none], [os_version_style_transform=['s/[0-9]\.[0-9][.0-9]*$//']],
[AC_MSG_ERROR(unknown --with-os-version-style: $withval)])
AS_IF([test -z "$target_alias" -a -n "$os_version_style_transform"],
[
target=`echo ${target} | sed "$os_version_style_transform"`
target_os=`echo ${target_os} | sed "$os_version_style_transform"`
])
AC_DEFUN([RUBY_APPEND_OPTION],
[# RUBY_APPEND_OPTION($1)
AS_CASE([" [$]{$1-} "],
[*" $2 "*], [], [' '], [ $1="$2"], [ $1="[$]$1 $2"])])
AC_DEFUN([RUBY_APPEND_OPTIONS],
[# RUBY_APPEND_OPTIONS($1)
for rb_opt in $2; do
AS_CASE([" [$]{$1-} "],
[*" [$]{rb_opt} "*], [], [' '], [ $1="[$]{rb_opt}"], [ $1="[$]$1 [$]{rb_opt}"])
done])
AC_DEFUN([RUBY_PREPEND_OPTION],
[# RUBY_PREPEND_OPTION($1)
AS_CASE([" [$]{$1-} "],
[*" $2 "*], [], [' '], [ $1="$2"], [ $1="$2 [$]$1"])])
AC_DEFUN([RUBY_PREPEND_OPTIONS],
[# RUBY_PREPEND_OPTIONS($1)
unset rb_opts; for rb_opt in $2; do
AS_CASE([" [$]{rb_opts} [$]{$1-} "],
[*" [$]{rb_opt} "*], [], [' '], [ $1="[$]{rb_opt}"], [ rb_opts="[$]{rb_opts}[$]{rb_opt} "])
done
$1="[$]{rb_opts}[$]$1"])
AC_ARG_WITH(arch,
AS_HELP_STRING([--with-arch=ARCHS],
[build an Apple/NeXT Multi Architecture Binary (MAB);
ARCHS is a comma-delimited list of architectures for
which to build; if this option is disabled or omitted
entirely, then the package will be built only for the
target platform]),
[target_archs="$withval"], [unset target_archs])
AC_DEFUN([RUBY_DEFAULT_ARCH], [
AC_MSG_CHECKING([arch option])
AS_CASE([$1],
[*64], [ARCH_FLAG=-m64],
[[i[3-6]86]], [ARCH_FLAG=-m32],
[AC_MSG_ERROR(unknown target architecture: $target_archs)]
)
AC_MSG_RESULT([$ARCH_FLAG])
])
AC_DEFUN([RUBY_UNIVERSAL_ARCH], [
# RUBY_UNIVERSAL_ARCH begin
ARCH_FLAG=`expr " $CXXFLAGS " : ['.* \(-m[0-9][0-9]*\) ']`
test ${CXXFLAGS+set} && CXXFLAGS=`echo "$CXXFLAGS" | sed [-e 's/ *-arch *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g']`
ARCH_FLAG=`expr " $CFLAGS " : ['.* \(-m[0-9][0-9]*\) ']`
test ${CFLAGS+set} && CFLAGS=`echo "$CFLAGS" | sed [-e 's/ *-arch *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g']`
test ${LDFLAGS+set} && LDFLAGS=`echo "$LDFLAGS" | sed [-e 's/ *-arch *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g']`
unset universal_binary universal_archnames
AS_IF([test ${target_archs+set}], [
AC_MSG_CHECKING([target architectures])
target_archs=`echo $target_archs | tr , ' '`
# /usr/lib/arch_tool -archify_list $TARGET_ARCHS
for archs in $target_archs
do
AS_CASE([",$universal_binary,"],[*",$archs,"*], [],[
cpu=`$SHELL "$ac_aux_dir/config.sub" "${archs}-${target_os}" 2>&1` || {
AC_MSG_RESULT([failed])
AC_MSG_ERROR([$cpu])
}
cpu=`echo $cpu | sed 's/-.*-.*//'`
universal_binary="${universal_binary+$universal_binary,}$cpu"
universal_archnames="${universal_archnames} ${archs}=${cpu}"
ARCH_FLAG="${ARCH_FLAG+$ARCH_FLAG }-arch $archs"
])
done
target_archs="$universal_binary"
unset universal_binary
AS_CASE(["$target_archs"],
[*,*], [universal_binary=yes],
[unset universal_archnames])
AC_MSG_RESULT([$target_archs])
target=`echo $target | sed "s/^$target_cpu-/-/"`
target_alias=`echo $target_alias | sed "s/^$target_cpu-/-/"`
AS_IF([test "${universal_binary-no}" = yes], [
AC_SUBST(try_header,try_compile)
target_cpu=universal
real_cross_compiling=$cross_compiling
], [
AS_IF([test x"$target_cpu" != x"${target_archs}"], [
echo 'int main(){return 0;}' > conftest.c
AS_IF([$CC $CFLAGS $ARCH_FLAG -o conftest conftest.c > /dev/null 2>&1], [
rm -fr conftest.*
], [
RUBY_DEFAULT_ARCH("$target_archs")
])
])
target_cpu=${target_archs}
])
AS_CASE(["$target"], [-*], [ target="$target_cpu${target}"])
AS_CASE(["$target_alias"], [-*], [ target_alias="$target_cpu${target_alias}"])
], [
AS_IF([test x"$target_alias" = x], [
AS_CASE(["$target_os"],
[darwin*], [
AC_MSG_CHECKING([for real target cpu])
target=`echo $target | sed "s/^$target_cpu-/-/"`
target_cpu=`$CC -E - 2>/dev/null <<EOF |
#ifdef __x86_64__
"processor-name=x86_64"
#endif
#ifdef __i386__
"processor-name=i386"
#endif
#ifdef __ppc__
"processor-name=powerpc"
#endif
#ifdef __ppc64__
"processor-name=powerpc64"
#endif
EOF
sed -n 's/^"processor-name=\(.*\)"/\1/p'`
target="$target_cpu${target}"
AC_MSG_RESULT([$target_cpu])
])
])
target_archs="$target_cpu"
])
AS_IF([test "${target_archs}" != "${rb_cv_target_archs-${target_archs}}"], [
AC_MSG_ERROR([target arch(s) has changed from ${rb_cv_target_archs-nothing} to ${target_archs}])
], [
rb_cv_target_archs=${target_archs}
])
AS_IF([test "x${ARCH_FLAG}" != x], [
CFLAGS="${CFLAGS:+$CFLAGS }${ARCH_FLAG}"
LDFLAGS="${LDFLAGS:+$LDFLAGS }${ARCH_FLAG}"
])
# RUBY_UNIVERSAL_ARCH end
])
AC_ARG_ENABLE(load-relative,
AS_HELP_STRING([--enable-load-relative], [resolve load paths at run time]),
[load_relative=$enableval])
AC_ARG_PROGRAM
dnl Checks for programs.
cflagspat=
test -z "$optflags" ||
cflagspat="$cflagspat;s|"`eval echo '"'"${optflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
test -z "$debugflags" ||
cflagspat="$cflagspat;s|"`eval echo '"'"${debugflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
test -z "warnflags" ||
cflagspat="$cflagspat;s|"`eval echo '"'"${warnflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
AS_IF([test -z "${CFLAGS+set}"], [
cflags=`echo " $cflags " | sed "$cflagspat;s/^ *//;s/ *$//"`
orig_cflags="$cflags"
cflags="$cflags "'${optflags} ${debugflags} ${warnflags}'
])
AS_IF([test -z "${CXXFLAGS+set}"], [
cxxflags=`echo " $cxxflags " | sed "$cflagspat;s/^ *//;s/ *$//"`
orig_cxxflags="$cxxflags"
cxxflags="$cxxflags "'${optflags} ${debugflags} ${warnflags}'
])
RUBY_NACL
AS_CASE(["$host_os:$build_os"],
[darwin*:darwin*], [
AC_CHECK_TOOLS(CC, [clang gcc cc])
# Following Apple deployed clang are broken
# clang version 1.0 (http://llvm.org/svn/llvm-project/cfe/tags/Apple/clang-23 exported)
# Apple clang version 2.0 (tags/Apple/clang-137) (based on LLVM 2.9svn)
# Apple clang version 2.1 (tags/Apple/clang-163.7.1) (based on LLVM 3.0svn)
AS_IF([! $CC -E -xc - <<SRC >/dev/null], [
@%:@if defined __APPLE_CC__ && defined __clang_major__ && __clang_major__ < 3
@%:@error premature clang
@%:@endif
SRC
AC_MSG_ERROR([clang version 3.0 or later is required])
])
])
AS_IF([test x"${build}" != x"${host}"], [
AC_CHECK_TOOL(CC, gcc)
])
AC_PROG_CC
dnl Select the appropriate C++ compiler in OS X
AS_CASE(["$build_os"],
[darwin1*.*], [
AS_CASE(["x$CC"],
[xgcc-4.2|x/usr/bin/gcc-4.2], [: ${CXX=g++-4.2}],
[xgcc|x/usr/bin/gcc], [: ${CXX=g++}],
[xcc|x/usr/bin/cc], [: ${CXX=c++}],
[xicc], [: ${CXX=icpc}],
[xclang|x/usr/bin/clang], [: ${CXX=clang++}])
])
test -z "$CXX" || ac_cv_prog_CXX="$CXX"
AC_PROG_CXX
RUBY_MINGW32
AC_PROG_GCC_TRADITIONAL
AC_SUBST(GCC)
AS_CASE(["$target_os"],
[solaris*], [AC_PATH_TOOL([LD], [ld], [/usr/ccs/bin/ld], [/usr/ccs/bin:$PATH])],
[AC_CHECK_TOOL([LD], [ld], [ld])])
AC_SUBST(LD)
AS_IF([test "$GCC" = yes], [
linker_flag=-Wl,
: ${optflags=-O3}
gcc_major=`echo =__GNUC__ | $CC -E -xc - | sed '/^=/!d;s///'`
gcc_minor=`echo =__GNUC_MINOR__ | $CC -E -xc - | sed '/^=/!d;s///'`
test -n "$gcc_major" || gcc_major=0
test -n "$gcc_minor" || gcc_minor=0
# RUBY_APPEND_OPTIONS(XCFLAGS, ["-include ruby/config.h" "-include ruby/missing.h"])
], [
linker_flag=
])
RUBY_PROG_GNU_LD
RUBY_CPPOUTFILE
: ${OUTFLAG='-o '}
: ${COUTFLAG=${OUTFLAG}}
: ${CSRCFLAG=''}
AC_SUBST(OUTFLAG)
AC_SUBST(COUTFLAG)
AC_SUBST(CSRCFLAG)
cc_version=
for option in --version -v -V -qversion; do
cc_version_message=`$CC $option 2>&1`
cc_version_status=$?
AS_CASE($cc_version_status, [0], [:], [continue])
AS_CASE($cc_version_message, [*Warning*], [continue])
cc_version='$(CC) '$option
break
done
AC_SUBST(CC_VERSION, $cc_version)
AC_SUBST(CC_VERSION_MESSAGE, $cc_version_message)
RUBY_UNIVERSAL_ARCH
AS_IF([test "$target_cpu" != "$host_cpu" -a "$GCC" = yes -a "$cross_compiling" = no -a "$universal_binary" = no], [
RUBY_DEFAULT_ARCH("$target_cpu")
])
AS_CASE(["$target_cpu-$target_os"], [[i[3-6]86*]], [
AC_CACHE_CHECK([for __sync_val_compare_and_swap], [rb_cv_gcc_compiler_cas], [
AC_TRY_LINK([unsigned long atomic_var;],
[
__sync_val_compare_and_swap(&atomic_var, 0, 1);
],
[rb_cv_gcc_compiler_cas=yes],
[rb_cv_gcc_compiler_cas=no])])
AS_IF([test "$rb_cv_gcc_compiler_cas" = no], [
unset rb_cv_gcc_compiler_cas
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -march=i486"
AC_CACHE_CHECK([for __sync_val_compare_and_swap with -march=i486], [rb_cv_gcc_compiler_cas], [
AC_TRY_LINK([unsigned long atomic_var;],
[
__sync_val_compare_and_swap(&atomic_var, 0, 1);
],
[rb_cv_gcc_compiler_cas=yes
ARCH_FLAG="-march=i486"],
[rb_cv_gcc_compiler_cas=no])])
CFLAGS="$save_CFLAGS"
])])
AS_CASE(["$target_os"], [darwin*], [
ac_cv_prog_ac_ct_RANLIB=:
ac_cv_prog_ac_ct_AR='libtool -static'
rb_cv_arflags='-no_warning_for_no_symbols -o'
])
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_CHECK_TOOL(AR, ar)
AS_IF([test -z "$AR"], [
AC_CHECK_PROGS(AR, aal, ar)
])
AC_CACHE_CHECK([for $AR flags], [rb_cv_arflags], [
AS_IF([$AR rcD conftest.a > /dev/null 2>&1 && rm conftest.a],
[rb_cv_arflags=rcD], [rb_cv_arflags=rcu])
])
AC_SUBST(ARFLAGS, ["$rb_cv_arflags "])
AC_CHECK_TOOL(AS, as)
ASFLAGS=$ASFLAGS
AC_SUBST(ASFLAGS)
AS_CASE(["$target_os"],[cygwin*|mingw*], [ac_cv_prog_ac_ct_OBJCOPY=":"])
# BSD's ports and MacPorts prefix GNU binutils with 'g'
AC_CHECK_TOOLS(OBJDUMP, [objdump gobjdump])
AC_CHECK_TOOLS(OBJCOPY, [objcopy gobjcopy])
AS_CASE(["$target_os"],
[cygwin*|mingw*], [
AC_CHECK_TOOL(WINDRES, windres)
AC_CHECK_TOOL(DLLWRAP, dllwrap)
target=`echo $target | sed "s/^$target_cpu-/-/"`
target_alias=`echo $target_alias | sed "s/^$target_cpu-/-/"`
target_cpu=`echo $target_cpu | sed s/i.86/i386/`
AS_CASE(["$target"], [-*], [ target="$target_cpu${target}"])
AS_CASE(["$target_alias"], [-*], [ target_alias="$target_cpu${target_alias}"])
AS_CASE(["$target_os"],
[mingw*], [
test "$rb_cv_msvcrt" = "" && unset rb_cv_msvcrt
AC_CACHE_CHECK(for mingw32 runtime DLL, rb_cv_msvcrt, [
AC_TRY_LINK([@%:@include <stdio.h>],
[FILE* volatile f = stdin; return 0;],
[rb_cv_msvcrt=`$OBJDUMP -p conftest$ac_exeext |
tr A-Z a-z |
sed -n '/^[[ ]]*dll name: \(msvc.*\)\.dll$/{s//\1/p;q;}'`],
[rb_cv_msvcrt=msvcrt])
test "$rb_cv_msvcrt" = "" && rb_cv_msvcrt=msvcrt])
RT_VER=`echo "$rb_cv_msvcrt" | tr -cd [0-9]`
test "$RT_VER" = "" && RT_VER=60
AC_DEFINE_UNQUOTED(RUBY_MSVCRT_VERSION, $RT_VER)
])
: ${enable_shared=yes}
],
[aix*], [AC_CHECK_TOOL(NM, nm, /usr/ccs/bin/nm, /usr/ccs/bin:$PATH)],
[hiuxmpp*], [AC_DEFINE(__HIUX_MPP__)]) # by TOYODA Eizi <toyoda@npd.kishou.go.jp>
AC_CHECK_TOOL(NM, nm)
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AC_PROG_MKDIR_P
AS_IF([test "x$MKDIR_P" = "x -d"], [
AS_IF([test x"$as_mkdir_p" != xfalse], [
MKDIR_P='mkdir -p'
echo "use 'mkdir -p' as MKDIR_P"
], [
AC_MSG_ERROR([mkdir -p is required])
])
])
MAKEDIRS="$MKDIR_P"
AC_SUBST(MAKEDIRS)
AC_DEFUN([RUBY_DTRACE_AVAILABLE],
[AC_CACHE_CHECK(whether dtrace USDT is available, rb_cv_dtrace_available,
[
echo "provider conftest{ probe fire(); };" > conftest_provider.d
rb_cv_dtrace_available=no
AS_FOR(opt, rb_dtrace_opt, ["-xnolibs" ""], [dnl
AS_IF([$DTRACE opt -h -o conftest_provider.h -s conftest_provider.d >/dev/null 2>/dev/null],
[], [continue])
AC_TRY_COMPILE([@%:@include "conftest_provider.h"], [CONFTEST_FIRE();],
[], [continue])
# DTrace is available on the system
rb_cv_dtrace_available=yes${rb_dtrace_opt:+"(opt)"}
break
])
rm -f conftest.[co] conftest_provider.[dho]
])
AS_CASE(["$rb_cv_dtrace_available"], ["yes("*")"],
[DTRACE_OPT=`expr "$rb_cv_dtrace_available" : "yes(\(.*\))"`])
])
AC_DEFUN([RUBY_DTRACE_POSTPROCESS],
[AC_CACHE_CHECK(whether $DTRACE needs post processing, rb_cv_prog_dtrace_g,
[
rb_cv_prog_dtrace_g=no
AS_IF([{
cat >conftest_provider.d <<_PROBES &&
provider conftest {
probe fire();
};
_PROBES
$DTRACE ${DTRACE_OPT} -h -o conftest_provider.h -s conftest_provider.d >/dev/null 2>/dev/null &&
:
}], [
AC_TRY_COMPILE([@%:@include "conftest_provider.h"], [CONFTEST_FIRE();], [
AS_IF([{
cp -p conftest.${ac_objext} conftest.${ac_objext}.save &&
$DTRACE ${DTRACE_OPT} -G -s conftest_provider.d conftest.${ac_objext} 2>/dev/null &&
:
}], [
AS_IF([cmp -s conftest.o conftest.${ac_objext}.save], [
rb_cv_prog_dtrace_g=yes
], [
rb_cv_prog_dtrace_g=rebuild
])
])])
])
rm -f conftest.[co] conftest_provider.[dho]
])
])
AC_CHECK_PROG([DTRACE], [${ac_tool_prefix}dtrace], [${ac_tool_prefix}dtrace])
AS_IF([test "$cross_compiling:$ac_cv_prog_DTRACE" = no: -a -n "$ac_tool_prefix"], [
AC_CHECK_PROG([DTRACE], [dtrace], [dtrace])
])
AC_CHECK_PROGS(DOT, dot)
AC_CHECK_PROGS(DOXYGEN, doxygen)
AS_CASE(["${host_os}"], [nacl], [AC_PATH_PROG(PYTHON, python)])
AC_CHECK_PROG(PKG_CONFIG, pkg-config, [pkg-config], [], [],
[`"$as_dir/$ac_word$ac_exec_ext" --print-errors --version > /dev/null 2>&1 || echo "$as_dir/$ac_word$ac_exec_ext"`])
# checks for UNIX variants that set C preprocessor variables
AC_USE_SYSTEM_EXTENSIONS
AC_SUBST(RM, ['rm -f'])
AC_SUBST(CP, ['cp'])
RMDIRS='$(top_srcdir)/tool/rmdirs'
RMDIR=rmdir
mkdir "rmdirs_$$_test" "rmdirs_$$_test/a"
rmdir --ignore-fail-on-non-empty "rmdirs_$$_test" 2>/dev/null &&
RMDIR='rmdir --ignore-fail-on-non-empty'
$RMDIR -p "rmdirs_$$_test/a" 2>/dev/null &&
{ test -d "rmdirs_$$_test" || RMDIRS="$RMDIR -p"; }
rmdir "rmdirs_$$_test/a" "rmdirs_$$_test" 2>/dev/null
AC_SUBST(RMDIR)
AC_SUBST(RMDIRS)
AC_SUBST(RMALL, ['rm -fr'])
AC_MSG_CHECKING([for cd using physical directory])
rm -fr conf$$.dir
mkdir conf$$.dir &&
(cd conf$$.dir && mkdir src build && cd src &&
$as_ln_s ../build . > /dev/null 2>&1 && cd build &&
for chdir in 'cd -P' 'PWD= cd'; do
/bin/sh -c "$chdir ../src && echo '$chdir' > cdcmd" 2> /dev/null && break
done)
AS_IF([test -f conf$$.dir/src/cdcmd], [
read CHDIR < conf$$.dir/src/cdcmd 2> /dev/null
], [
CHDIR=cd
])
rm -fr conf$$.dir
AC_MSG_RESULT([$CHDIR])
AC_SUBST(CHDIR)
}
{ # compiler section
AC_DEFUN([RUBY_WERROR_FLAG], [dnl
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $rb_cv_warnflags"
AS_IF([test "${ac_c_werror_flag+set}"], [
rb_c_werror_flag="$ac_c_werror_flag"
], [
unset rb_c_werror_flag
])
ac_c_werror_flag=yes
$1
CFLAGS="$save_CFLAGS"
save_CFLAGS=
AS_IF([test "${rb_c_werror_flag+set}"], [
ac_c_werror_flag="$rb_c_werror_flag"
], [
unset ac_c_werror_flag
])])
RUBY_WERROR_FLAG([
AC_MSG_CHECKING([whether CFLAGS is valid])
AC_TRY_COMPILE([], [],
[AC_MSG_RESULT(yes)],
[
AC_MSG_RESULT(no)
AC_MSG_ERROR([something wrong with CFLAGS="$CFLAGS"])
]
)
AC_MSG_CHECKING([whether LDFLAGS is valid])
{
mkdir tmp.$$.try_link &&
cd tmp.$$.try_link &&
cp ../confdefs.h . &&
echo '<?xml?><plist><dict><key>CFBundleIdentifier</key><string></string></dict></plist>' > Info.plist &&
:
} || AC_MSG_ERROR([failed to make temporary directory])
AC_TRY_LINK([], [],
[AC_MSG_RESULT(yes)],
[
cd .. && rm -fr tmp.$$.try_link
AC_MSG_RESULT(no)
AC_MSG_ERROR([something wrong with LDFLAGS="$LDFLAGS"])
]
)
cd .. && rm -fr tmp.$$.try_link
])
AC_DEFUN([RUBY_TRY_CFLAGS], [
AC_MSG_CHECKING([whether ]$1[ is accepted as CFLAGS])
RUBY_WERROR_FLAG([
CFLAGS="[$]CFLAGS $1"
AC_TRY_COMPILE([$4], [$5],
[$2
AC_MSG_RESULT(yes)],
[$3
AC_MSG_RESULT(no)])
])
])
AC_DEFUN([RUBY_TRY_LDFLAGS], [
save_LDFLAGS="$LDFLAGS"
LDFLAGS="[$]LDFLAGS $1"
AC_MSG_CHECKING([whether $1 is accepted as LDFLAGS])
RUBY_WERROR_FLAG([
AC_TRY_LINK([$4], [$5],
[$2
AC_MSG_RESULT(yes)],
[$3
AC_MSG_RESULT(no)])
])
LDFLAGS="$save_LDFLAGS"
save_LDFLAGS=
])
: ${DLDFLAGS="$LDFLAGS"}
: ${RPATHFLAG=''}
rpathflag=''
AS_IF([test x"${RPATHFLAG}" = x], [
AS_CASE(["$target_os"],
[hpux*], [AS_IF([test "$rb_cv_prog_gnu_ld" = no], [rpathflag='+b '])],
[aix*], [rpathflag='-blibpath:'],
[for rpathflag in -R "-rpath "; do
AS_CASE("$rpathflag",
[*" "], [AS_CASE(["${linker_flag}"],
[*,], [rpathflag=`echo "$rpathflag" | tr ' ' ,`])])
rpathflag="${linker_flag}${rpathflag}"
RUBY_TRY_LDFLAGS([${rpathflag}.], [], [rpathflag=])
AS_IF([test "x${rpathflag}" != x], [])
done])
], [
rpathflag=`echo "$RPATHFLAG" | sed 's/%.*//'`
])
AS_CASE([$RUBY_PATCHLEVEL], [-*],
[RUBY_DEVEL=yes], [RUBY_DEVEL=no])
particular_werror_flags=$RUBY_DEVEL
AC_ARG_ENABLE(werror,
AS_HELP_STRING([--disable-werror],
[don't make warnings into errors
even if a compiler support -Werror feature
[[disabled by default unless development version]]]),
[particular_werror_flags=$enableval])
rb_cv_warnflags="$warnflags"
AS_IF([test "$GCC:${warnflags+set}:no" = yes::no], [
AS_IF([test $gcc_major -ge 4], [
extra_warning=-Werror=extra-tokens
], [
extra_warning=
])
AS_IF([test $gcc_major -ge 5 -a $gcc_major -le 6], [
extra_warning="$extra_warning -Wno-maybe-uninitialized"
])
for wflag in -Wno-unused-parameter -Wno-parentheses -Wno-long-long \
-diag-disable=2259 \
-Wno-missing-field-initializers \
-Wno-tautological-compare \
-Wno-parentheses-equality \
-Wno-constant-logical-operand \
-Wno-self-assign \
-Wunused-variable \
-Werror=implicit-int \
-Werror=pointer-arith \
-Werror=write-strings \
-Werror=declaration-after-statement \
-Werror=shorten-64-to-32 \
-Werror=implicit-function-declaration \
-Werror=division-by-zero \
-Werror=deprecated-declarations \
-Wno-packed-bitfield-compat \
-Wsuggest-attribute=noreturn \
-Wsuggest-attribute=format \
-Wimplicit-fallthrough=0 \
$extra_warning \
; do
AS_IF([test "$particular_werror_flags" != yes], [
wflag=`echo x$wflag | sed 's/^x-Werror=/-W/;s/^x//'`
])
ok=no
RUBY_TRY_CFLAGS($wflag, [
RUBY_APPEND_OPTIONS(warnflags, $wflag)
ok=yes
])
AS_CASE([$ok:$wflag], [no:-Werror=*], [
wflag=`echo x$wflag | sed 's/^x-Werror=/-W/'`
RUBY_TRY_CFLAGS($wflag, [
RUBY_APPEND_OPTIONS(warnflags, $wflag)
particular_werror_flags=no
])
])
done
AS_CASE([" $warnflags "],[*" -Wno-missing-field-initializers "*], [wflag="-Wall -Wextra"],
[wflag=-Wall])
RUBY_TRY_CFLAGS($wflag, [warnflags="$wflag${warnflags+ $warnflags}"])
# Disable warnflags while conftest. -Werror=* flags might make bad OS capability guess.
rb_cv_warnflags="$warnflags"
warnflags=
])
RUBY_TRY_CFLAGS(-Qunused-arguments, [RUBY_APPEND_OPTIONS(rb_cv_wsuppress_flags, -Qunused-arguments)])
for n in infinity nan; do
m=AS_TR_CPP($n)
AC_CACHE_CHECK([whether $m is available without C99 option], rb_cv_$n,
[AC_COMPILE_IFELSE(
[AC_LANG_BOOL_COMPILE_TRY(AC_INCLUDES_DEFAULT([@%:@include <math.h>
@%:@ifndef $m
@%:@error no $m
@%:@endif
]), [1])], [eval rb_cv_$n=yes], [eval rb_cv_$n=no])])
AS_IF([eval test '"$rb_cv_'$n'"' = yes], [
AC_DEFINE_UNQUOTED([HAVE_]$m)
])
done
AC_ARG_WITH(compress-debug-sections,
AS_HELP_STRING([--with-compress-debug-sections=type],
[enable debug section compression]),
[compress_debug_sections=$withval], [compress_debug_sections=])
AS_IF([test "$GCC" = yes], [
# NaCl's glibc build generates undefined references to __memset_chk.
# TODO(sbc): Remove this once NaCl's glibc is fixed.
AS_CASE(["$target_os"], [nacl], [], [
# -D_FORTIFY_SOURCE
# When defined _FORTIFY_SOURCE, glibc enables some additional sanity
# argument check. The performance drop is very little and Ubuntu enables
# _FORTIFY_SOURCE=2 by default. So, let's support it for protecting us from
# a mistake of silly C extensions.
RUBY_TRY_CFLAGS(-D_FORTIFY_SOURCE=2, [RUBY_APPEND_OPTION(XCFLAGS, -D_FORTIFY_SOURCE=2)])
])
# -fstack-protector
AS_CASE(["$target_os"],
[mingw*|nacl], [
stack_protector=no
])
AS_IF([test -z "${stack_protector+set}"], [
RUBY_TRY_CFLAGS(-fstack-protector, [stack_protector=yes], [stack_protector=no])
AS_IF([test "x$stack_protector" = xyes], [
RUBY_TRY_LDFLAGS(-fstack-protector, [], [stack_protector=broken])
])
])
AS_IF([test "x$stack_protector" = xyes], [
RUBY_APPEND_OPTION(XCFLAGS, -fstack-protector)
RUBY_APPEND_OPTION(XLDFLAGS, -fstack-protector)
RUBY_APPEND_OPTION(LDFLAGS, -fstack-protector)
])
AS_CASE("${compress_debug_sections:-zlib}",
[none|no], [], [
RUBY_TRY_LDFLAGS(${linker_flag}--compress-debug-sections=${compress_debug_sections:-zlib},
[compress_debug_sections=${compress_debug_sections:-zlib}],
[compress_debug_sections=no])
])
AS_IF([test "x$compress_debug_sections" != xno], [
RUBY_APPEND_OPTION(DLDFLAGS, ${linker_flag}--compress-debug-sections=$compress_debug_sections)
])
AS_CASE(["$target_os"],[mingw*], [
# On Windows platforms, system provided headers are VC++
# optimized. That is, C++ habits are often contaminated into
# various headers. Most frequent situation is the use of //
# comments. We bypass ANSI C mode for them. Otherwise
# extension libs cannot include those headers.
# Since math.h in some mingw64 wrongly delcares frexp and modf
# to be pure, the variables pointed by the second arguments are
# considered uninitialized unexpectedly.
AC_CACHE_CHECK([whether frexp and modf are broken],
rb_cv_mingw64_broken_frexp_modf,
[
save_CFLAGS="$CFLAGS"
AS_IF([test "$particular_werror_flags" = "yes"], [
CFLAGS="$CFLAGS -Werror=uninitialized"
], [
CFLAGS="$CFLAGS -Werror -Wuninitialized"
])
AC_TRY_COMPILE([@%:@include <math.h>
int foo(double x)
{
int exp;
frexp(x, &exp);
return exp;
}], [if (foo(0.0)) return 1;],
[rb_cv_mingw64_broken_frexp_modf=no],
[rb_cv_mingw64_broken_frexp_modf=yes])
CFLAGS="$save_CFLAGS"
])