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# aclocal.m4 for ICU
# Copyright (c) 1999-2012, International Business Machines Corporation and
# others. All Rights Reserved.
# Stephen F. Booth
# @TOP@
# ICU_CHECK_MH_FRAG
AC_DEFUN(ICU_CHECK_MH_FRAG, [
AC_CACHE_CHECK(
[which Makefile fragment to use for ${host}],
[icu_cv_host_frag],
[
case "${host}" in
*-*-solaris*)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-solaris-gcc
else
icu_cv_host_frag=mh-solaris
fi ;;
alpha*-*-linux-gnu)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-alpha-linux-gcc
else
icu_cv_host_frag=mh-alpha-linux-cc
fi ;;
powerpc*-*-linux*)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-linux
else
icu_cv_host_frag=mh-linux-va
fi ;;
*-*-linux*|*-*-gnu|*-*-k*bsd*-gnu|*-*-kopensolaris*-gnu) icu_cv_host_frag=mh-linux ;;
*-*-cygwin|*-*-mingw32)
if test "$GCC" = yes; then
AC_TRY_COMPILE([
#ifndef __MINGW32__
#error This is not MinGW
#endif], [], icu_cv_host_frag=mh-mingw, icu_cv_host_frag=mh-cygwin)
else
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case "${host}" in
*-*-mingw32) icu_cv_host_frag=mh-msys-msvc ;;
*-*-cygwin) icu_cv_host_frag=mh-cygwin-msvc ;;
esac
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fi ;;
*-*-*bsd*|*-*-dragonfly*) icu_cv_host_frag=mh-bsd-gcc ;;
*-*-aix*)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-aix-gcc
else
icu_cv_host_frag=mh-aix-va
fi ;;
*-*-hpux*)
if test "$GCC" = yes; then
icu_cv_host_frag=mh-hpux-gcc
else
case "$CXX" in
*aCC) icu_cv_host_frag=mh-hpux-acc ;;
esac
fi ;;
*-*ibm-openedition*|*-*-os390*) icu_cv_host_frag=mh-os390 ;;
*-*-os400*) icu_cv_host_frag=mh-os400 ;;
*-apple-rhapsody*) icu_cv_host_frag=mh-darwin ;;
*-apple-darwin*) icu_cv_host_frag=mh-darwin ;;
*-*-beos) icu_cv_host_frag=mh-beos ;;
*-*-haiku) icu_cv_host_frag=mh-haiku ;;
*-*-irix*) icu_cv_host_frag=mh-irix ;;
*-dec-osf*) icu_cv_host_frag=mh-alpha-osf ;;
*-*-nto*) icu_cv_host_frag=mh-qnx ;;
*-ncr-*) icu_cv_host_frag=mh-mpras ;;
*) icu_cv_host_frag=mh-unknown ;;
esac
]
)
])
# ICU_CONDITIONAL - similar example taken from Automake 1.4
AC_DEFUN(ICU_CONDITIONAL,
[AC_SUBST($1_TRUE)
if $2; then
$1_TRUE=
else
$1_TRUE='#'
fi])
# ICU_PROG_LINK - Make sure that the linker is usable
AC_DEFUN(ICU_PROG_LINK,
[
case "${host}" in
*-*-cygwin*|*-*-mingw*)
if test "$GCC" != yes && test -n "`link --version 2>&1 | grep 'GNU coreutils'`"; then
AC_MSG_ERROR([link.exe is not a valid linker. Your PATH is incorrect.
Please follow the directions in ICU's readme.])
fi;;
*);;
esac])
# AC_SEARCH_LIBS_FIRST(FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND
# [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
# Search for a library defining FUNC, then see if it's not already available.
AC_DEFUN(AC_SEARCH_LIBS_FIRST,
[AC_PREREQ([2.13])
AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1],
[ac_func_search_save_LIBS="$LIBS"
ac_cv_search_$1="no"
for i in $2; do
LIBS="-l$i $5 $ac_func_search_save_LIBS"
AC_TRY_LINK_FUNC([$1],
[ac_cv_search_$1="-l$i"
break])
done
if test "$ac_cv_search_$1" = "no"; then
AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="none required"])
fi
LIBS="$ac_func_search_save_LIBS"])
if test "$ac_cv_search_$1" != "no"; then
test "$ac_cv_search_$1" = "none required" || LIBS="$ac_cv_search_$1 $LIBS"
$3
else :
$4
fi])
# Check if we can build and use 64-bit libraries
AC_DEFUN(AC_CHECK_64BIT_LIBS,
[
BITS_REQ=nochange
ENABLE_64BIT_LIBS=unknown
## revisit this for cross-compile.
AC_ARG_ENABLE(64bit-libs,
[ --enable-64bit-libs (deprecated, use --with-library-bits) build 64-bit libraries [default= platform default]],
[echo "note, use --with-library-bits instead of --*-64bit-libs"
case "${enableval}" in
no|false|32) with_library_bits=32; ;;
yes|true|64) with_library_bits=64else32 ;;
nochange) with_library_bits=nochange; ;;
*) AC_MSG_ERROR(bad value ${enableval} for '--*-64bit-libs') ;;
esac] )
AC_ARG_WITH(library-bits,
[ --with-library-bits=bits specify how many bits to use for the library (32, 64, 64else32, nochange) [default=nochange]],
[case "${withval}" in
""|nochange) BITS_REQ=$withval ;;
32|64|64else32) BITS_REQ=$withval ;;
*) AC_MSG_ERROR(bad value ${withval} for --with-library-bits) ;;
esac])
# don't use these for cross compiling
if test "$cross_compiling" = "yes" -a "${BITS_REQ}" != "nochange"; then
AC_MSG_ERROR([Don't specify bitness when cross compiling. See readme.html for help with cross compilation., and set compiler options manually.])
fi
AC_CHECK_SIZEOF([void *])
AC_MSG_CHECKING([whether runnable 64 bit binaries are built by default])
case $ac_cv_sizeof_void_p in
8) DEFAULT_64BIT=yes ;;
4) DEFAULT_64BIT=no ;;
*) DEFAULT_64BIT=unknown
esac
BITS_GOT=unknown
# 'OK' here means, we can exit any further checking, everything's copa
BITS_OK=yes
# do we need to check for buildable/runnable 32 or 64 bit?
BITS_CHECK_32=no
BITS_CHECK_64=no
# later, can we run the 32/64 bit binaries so made?
BITS_RUN_32=no
BITS_RUN_64=no
if test "$DEFAULT_64BIT" = "yes"; then
# we get 64 bits by default.
BITS_GOT=64
case "$BITS_REQ" in
32)
# need to look for 32 bit support.
BITS_CHECK_32=yes
# not copa.
BITS_OK=no;;
# everyone else is happy.
nochange) ;;
*) ;;
esac
elif test "$DEFAULT_64BIT" = "no"; then
# not 64 bit by default.
BITS_GOT=32
case "$BITS_REQ" in
64|64else32)
BITS_CHECK_64=yes
#BITS_CHECK_32=yes
BITS_OK=no;;
nochange) ;;
*) ;;
esac
elif test "$DEFAULT_64BIT" = "unknown"; then
# cross compiling.
BITS_GOT=unknown
case "$BITS_REQ" in
64|64else32) BITS_OK=no
BITS_CHECK_32=yes
BITS_CHECK_64=yes ;;
32) BITS_OK=no;;
nochange) ;;
*) ;;
esac
fi
AC_MSG_RESULT($DEFAULT_64BIT);
if test "$BITS_OK" != "yes"; then
# not copa. back these up.
CFLAGS_OLD="${CFLAGS}"
CXXFLAGS_OLD="${CXXFLAGS}"
LDFLAGS_OLD="${LDFLAGS}"
ARFLAGS_OLD="${ARFLAGS}"
CFLAGS_32="${CFLAGS}"
CXXFLAGS_32="${CXXFLAGS}"
LDFLAGS_32="${LDFLAGS}"
ARFLAGS_32="${ARFLAGS}"
CFLAGS_64="${CFLAGS}"
CXXFLAGS_64="${CXXFLAGS}"
LDFLAGS_64="${LDFLAGS}"
ARFLAGS_64="${ARFLAGS}"
CAN_BUILD_64=unknown
CAN_BUILD_32=unknown
# These results can't be cached because is sets compiler flags.
if test "$BITS_CHECK_64" = "yes"; then
AC_MSG_CHECKING([how to build 64-bit executables])
CAN_BUILD_64=no
####
# Find out if we think we can *build* for 64 bit. Doesn't check whether we can run it.
# Note, we don't have to actually check if the options work- we'll try them before using them.
# So, only try actually testing the options, if you are trying to decide between multiple options.
# On exit from the following clauses:
# if CAN_BUILD_64=yes:
# *FLAGS are assumed to contain the right settings for 64bit
# else if CAN_BUILD_64=no: (default)
# *FLAGS are assumed to be trashed, and will be reset from *FLAGS_OLD
if test "$GCC" = yes; then
CFLAGS="${CFLAGS} -m64"
CXXFLAGS="${CXXFLAGS} -m64"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no)
else
case "${host}" in
sparc*-*-solaris*)
# 1. try -m64
CFLAGS="${CFLAGS} -m64"
CXXFLAGS="${CXXFLAGS} -m64"
AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no, CAN_BUILD_64=unknown)
if test "$CAN_BUILD_64" != yes; then
# Nope. back out changes.
CFLAGS="${CFLAGS_OLD}"
CXXFLAGS="${CFLAGS_OLD}"
# 2. try xarch=v9 [deprecated]
## TODO: cross compile: the following won't work.
SPARCV9=`isainfo -n 2>&1 | grep sparcv9`
SOL64=`$CXX -xarch=v9 2>&1 && $CC -xarch=v9 2>&1 | grep -v usage:`
# "Warning: -xarch=v9 is deprecated, use -m64 to create 64-bit programs"
if test -z "$SOL64" && test -n "$SPARCV9"; then
CFLAGS="${CFLAGS} -xtarget=ultra -xarch=v9"
CXXFLAGS="${CXXFLAGS} -xtarget=ultra -xarch=v9"
LDFLAGS="${LDFLAGS} -xtarget=ultra -xarch=v9"
CAN_BUILD_64=yes
fi
fi
;;
i386-*-solaris*)
# 1. try -m64
CFLAGS="${CFLAGS} -m64"
CXXFLAGS="${CXXFLAGS} -m64"
AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no, CAN_BUILD_64=unknown)
if test "$CAN_BUILD_64" != yes; then
# Nope. back out changes.
CFLAGS="${CFLAGS_OLD}"
CXXFLAGS="${CXXFLAGS_OLD}"
# 2. try the older compiler option
## TODO: cross compile problem
AMD64=`isainfo -n 2>&1 | grep amd64`
SOL64=`$CXX -xtarget=generic64 2>&1 && $CC -xtarget=generic64 2>&1 | grep -v usage:`
if test -z "$SOL64" && test -n "$AMD64"; then
CFLAGS="${CFLAGS} -xtarget=generic64"
CXXFLAGS="${CXXFLAGS} -xtarget=generic64"
CAN_BUILD_64=yes
fi
fi
;;
ia64-*-linux*)
# check for ecc/ecpc compiler support
## TODO: cross compiler problem
if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Intel`"; then
if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Itanium`"; then
CAN_BUILD_64=yes
fi
fi
;;
*-*-cygwin)
# vcvarsamd64.bat should have been used to enable 64-bit builds.
# We only do this check to display the correct answer.
## TODO: cross compiler problem
if test -n "`$CXX -help 2>&1 | grep 'for x64'`"; then
CAN_BUILD_64=yes
fi
;;
*-*-aix*|powerpc64-*-linux*)
CFLAGS="${CFLAGS} -q64"
CXXFLAGS="${CXXFLAGS} -q64"
LDFLAGS="${LDFLAGS} -q64"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no)
if test "$CAN_BUILD_64" = yes; then
# worked- set other options.
case "${host}" in
*-*-aix*)
# tell AIX what executable mode to use.
ARFLAGS="${ARFLAGS} -X64"
esac
fi
;;
*-*-hpux*)
# First we try the newer +DD64, if that doesn't work,
# try other options.
CFLAGS="${CFLAGS} +DD64"
CXXFLAGS="${CXXFLAGS} +DD64"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no)
if test "$CAN_BUILD_64" != yes; then
# reset
CFLAGS="${CFLAGS_OLD}"
CXXFLAGS="${CXXFLAGS_OLD}"
# append
CFLAGS="${CFLAGS} +DA2.0W"
CXXFLAGS="${CXXFLAGS} +DA2.0W"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no)
fi
;;
*-*ibm-openedition*|*-*-os390*)
CFLAGS="${CFLAGS} -Wc,lp64"
CXXFLAGS="${CXXFLAGS} -Wc,lp64"
LDFLAGS="${LDFLAGS} -Wl,lp64"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
CAN_BUILD_64=yes, CAN_BUILD_64=no)
;;
*)
# unknown platform.
;;
esac
fi
AC_MSG_RESULT($CAN_BUILD_64)
if test "$CAN_BUILD_64" = yes; then
AC_MSG_CHECKING([whether runnable 64-bit binaries are being built ])
AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
BITS_RUN_64=yes, BITS_RUN_64=no, BITS_RUN_64=unknown)
AC_MSG_RESULT($BITS_RUN_64);
CFLAGS_64="${CFLAGS}"
CXXFLAGS_64="${CXXFLAGS}"
LDFLAGS_64="${LDFLAGS}"
ARFLAGS_64="${ARFLAGS}"
fi
# put it back.
CFLAGS="${CFLAGS_OLD}"
CXXFLAGS="${CXXFLAGS_OLD}"
LDFLAGS="${LDFLAGS_OLD}"
ARFLAGS="${ARFLAGS_OLD}"
fi
if test "$BITS_CHECK_32" = "yes"; then
# see comment under 'if BITS_CHECK_64', above.
AC_MSG_CHECKING([how to build 32-bit executables])
if test "$GCC" = yes; then
CFLAGS="${CFLAGS} -m32"
CXXFLAGS="${CXXFLAGS} -m32"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==32)?0:1;}])],
CAN_BUILD_32=yes, CAN_BUILD_32=no)
fi
AC_MSG_RESULT($CAN_BUILD_32)
if test "$CAN_BUILD_32" = yes; then
AC_MSG_CHECKING([whether runnable 32-bit binaries are being built ])
AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==32)?0:1;}])],
BITS_RUN_32=yes, BITS_RUN_32=no, BITS_RUN_32=unknown)
AC_MSG_RESULT($BITS_RUN_32);
CFLAGS_32="${CFLAGS}"
CXXFLAGS_32="${CXXFLAGS}"
LDFLAGS_32="${LDFLAGS}"
ARFLAGS_32="${ARFLAGS}"
fi
# put it back.
CFLAGS="${CFLAGS_OLD}"
CXXFLAGS="${CXXFLAGS_OLD}"
LDFLAGS="${LDFLAGS_OLD}"
ARFLAGS="${ARFLAGS_OLD}"
fi
##
# OK. Now, we've tested for 32 and 64 bitness. Let's see what we'll do.
#
# First, implement 64else32
if test "$BITS_REQ" = "64else32"; then
if test "$BITS_RUN_64" = "yes"; then
BITS_REQ=64
else
# no changes.
BITS_OK=yes
fi
fi
# implement.
if test "$BITS_REQ" = "32" -a "$BITS_RUN_32" = "yes"; then
CFLAGS="${CFLAGS_32}"
CXXFLAGS="${CXXFLAGS_32}"
LDFLAGS="${LDFLAGS_32}"
ARFLAGS="${ARFLAGS_32}"
BITS_OK=yes
elif test "$BITS_REQ" = "64" -a "$BITS_RUN_64" = "yes"; then
CFLAGS="${CFLAGS_64}"
CXXFLAGS="${CXXFLAGS_64}"
LDFLAGS="${LDFLAGS_64}"
ARFLAGS="${ARFLAGS_64}"
BITS_OK=yes
elif test "$BITS_OK" != "yes"; then
AC_MSG_ERROR([Requested $BITS_REQ bit binaries but could not compile and execute them. See readme.html for help with cross compilation., and set compiler options manually.])
fi
fi
])
# Strict compilation options.
AC_DEFUN(AC_CHECK_STRICT_COMPILE,
[
AC_MSG_CHECKING([whether strict compiling is on])
AC_ARG_ENABLE(strict,[ --enable-strict compile with strict compiler options [default=yes]], [
if test "$enableval" = no
then
ac_use_strict_options=no
else
ac_use_strict_options=yes
fi
], [ac_use_strict_options=yes])
AC_MSG_RESULT($ac_use_strict_options)
if test "$ac_use_strict_options" = yes
then
if test "$GCC" = yes
then
# Do not use -ansi. It limits us to C90, and it breaks some platforms.
# We use -std=c99 to disable the gnu99 defaults and its associated warnings
CFLAGS="$CFLAGS -Wall -std=c99 -pedantic -Wshadow -Wpointer-arith -Wmissing-prototypes -Wwrite-strings"
else
case "${host}" in
*-*-cygwin)
if test "`$CC /help 2>&1 | head -c9`" = "Microsoft"
then
CFLAGS="$CFLAGS /W4"
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fi ;;
*-*-mingw32)
CFLAGS="$CFLAGS -W4" ;;
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esac
fi
if test "$GXX" = yes
then
CXXFLAGS="$CXXFLAGS -W -Wall -pedantic -Wpointer-arith -Wwrite-strings -Wno-long-long"
else
case "${host}" in
*-*-cygwin)
if test "`$CXX /help 2>&1 | head -c9`" = "Microsoft"
then
CXXFLAGS="$CXXFLAGS /W4"
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fi ;;
*-*-mingw32)
CXXFLAGS="$CXXFLAGS -W4" ;;
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esac
fi
fi
])
