442 lines
16 KiB
Plaintext
442 lines
16 KiB
Plaintext
# aclocal.m4 for ICU
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# Copyright (c) 1999-2008, International Business Machines Corporation and
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# others. All Rights Reserved.
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# Stephen F. Booth
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# @TOP@
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# ICU_CHECK_MH_FRAG
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AC_DEFUN(ICU_CHECK_MH_FRAG, [
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AC_CACHE_CHECK(
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[which Makefile fragment to use],
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[icu_cv_host_frag],
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[
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case "${host}" in
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*-*-solaris*)
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if test "$GCC" = yes; then
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icu_cv_host_frag=mh-solaris-gcc
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else
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icu_cv_host_frag=mh-solaris
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fi ;;
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alpha*-*-linux-gnu)
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if test "$GCC" = yes; then
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icu_cv_host_frag=mh-alpha-linux-gcc
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else
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icu_cv_host_frag=mh-alpha-linux-cc
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fi ;;
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powerpc*-*-linux*)
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if test "$GCC" = yes; then
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icu_cv_host_frag=mh-linux
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else
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icu_cv_host_frag=mh-linux-va
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fi ;;
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*-*-linux*|*-pc-gnu) icu_cv_host_frag=mh-linux ;;
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*-*-cygwin|*-*-mingw32)
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if test "$GCC" = yes; then
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AC_TRY_COMPILE([
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#ifndef __MINGW32__
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#error This is not MinGW
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#endif], [], icu_cv_host_frag=mh-mingw, icu_cv_host_frag=mh-cygwin)
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else
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icu_cv_host_frag=mh-cygwin-msvc
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fi ;;
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*-*-*bsd*|*-*-dragonfly*) icu_cv_host_frag=mh-bsd-gcc ;;
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*-*-aix*)
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if test "$GCC" = yes; then
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icu_cv_host_frag=mh-aix-gcc
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else
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icu_cv_host_frag=mh-aix-va
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fi ;;
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*-*-hpux*)
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if test "$GCC" = yes; then
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icu_cv_host_frag=mh-hpux-gcc
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else
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case "$CXX" in
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*aCC) icu_cv_host_frag=mh-hpux-acc ;;
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esac
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fi ;;
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*-*ibm-openedition*|*-*-os390*) icu_cv_host_frag=mh-os390 ;;
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*-*-os400*) icu_cv_host_frag=mh-os400 ;;
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*-apple-rhapsody*) icu_cv_host_frag=mh-darwin ;;
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*-apple-darwin*) icu_cv_host_frag=mh-darwin ;;
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*-*-beos|*-*-haiku) icu_cv_host_frag=mh-beos ;;
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*-*-irix*) icu_cv_host_frag=mh-irix ;;
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*-dec-osf*) icu_cv_host_frag=mh-alpha-osf ;;
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*-*-nto*) icu_cv_host_frag=mh-qnx ;;
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*-ncr-*) icu_cv_host_frag=mh-mpras ;;
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*) icu_cv_host_frag=mh-unknown ;;
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esac
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]
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)
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])
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# ICU_CONDITIONAL - similar example taken from Automake 1.4
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AC_DEFUN(ICU_CONDITIONAL,
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[AC_SUBST($1_TRUE)
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if $2; then
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$1_TRUE=
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else
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$1_TRUE='#'
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fi])
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# ICU_PROG_LINK - Make sure that the linker is usable
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AC_DEFUN(ICU_PROG_LINK,
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[
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case "${host}" in
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*-*-cygwin*|*-*-mingw*)
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if test "$GCC" != yes && test -n "`link --version 2>&1 | grep 'GNU coreutils'`"; then
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AC_MSG_ERROR([link.exe is not a valid linker. Your PATH is incorrect.
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Please follow the directions in ICU's readme.])
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fi;;
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*);;
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esac])
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# AC_SEARCH_LIBS_FIRST(FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND
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# [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
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# Search for a library defining FUNC, then see if it's not already available.
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AC_DEFUN(AC_SEARCH_LIBS_FIRST,
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[AC_PREREQ([2.13])
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AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1],
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[ac_func_search_save_LIBS="$LIBS"
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ac_cv_search_$1="no"
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for i in $2; do
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LIBS="-l$i $5 $ac_func_search_save_LIBS"
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AC_TRY_LINK_FUNC([$1],
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[ac_cv_search_$1="-l$i"
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break])
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done
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if test "$ac_cv_search_$1" = "no"; then
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AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="none required"])
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fi
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LIBS="$ac_func_search_save_LIBS"])
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if test "$ac_cv_search_$1" != "no"; then
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test "$ac_cv_search_$1" = "none required" || LIBS="$ac_cv_search_$1 $LIBS"
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$3
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else :
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$4
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fi])
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# Check if we can build and use 64-bit libraries
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AC_DEFUN(AC_CHECK_64BIT_LIBS,
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[
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BITS_REQ=nochange
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ENABLE_64BIT_LIBS=unknown
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## revisit this for cross-compile.
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AC_ARG_ENABLE(64bit-libs,
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[ --enable-64bit-libs (deprecated, use --with-library-bits) build 64-bit libraries [default= platform default]],
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[echo "note, use --with-library-bits instead of --*-64bit-libs"
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case "${withval}" in
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no|false|32) BITS_REQ=32 ;;
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yes|true|64) BITS_REQ=64 ;;
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nochange) BITS_REQ=nochange ;;
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*) AC_MSG_ERROR(bad value ${withval} for --with-library-bits) ;;
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esac] )
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AC_ARG_WITH(library-bits,
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[ --with-library-bits=bits specify how many bits to use for the library (32, 64, 64else32, nochange) [default=nochange]],
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[case "${withval}" in
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nochange) BITS_REQ=$withval ;;
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32|64|64else32) BITS_REQ=$withval ;;
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*) AC_MSG_ERROR(bad value ${withval} for --with-library-bits) ;;
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esac])
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DEFAULT_64BIT=no
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AC_MSG_CHECKING([whether 64 bit binaries are built by default])
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AC_RUN_IFELSE(int main(void) {return (sizeof(void*)*8==64)?0:1;},
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DEFAULT_64BIT=yes, DEFAULT_64BIT=no, DEFAULT_64BIT=unknown)
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BITS_GOT=unknown
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BITS_OK=yes
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if test "$DEFAULT_64BIT" = "yes"; then
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BITS_GOT=64
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case "$BITS_REQ" in
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32) BITS_OK=no;;
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nochange) ;;
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*) ;;
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esac
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elif test "$DEFAULT_64BIT" = "no"; then
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BITS_GOT=32
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case "$BITS_REQ" in
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64|64else32) BITS_OK=no;;
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nochange) ;;
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*) ;;
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esac
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elif test "$DEFAULT_64BIT" = "unknown"; then
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BITS_GOT=unknown
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case "$BITS_REQ" in
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64|64else32) BITS_OK=no;;
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32) BITS_OK=no;;
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nochange) ;;
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*) ;;
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esac
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fi
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AC_MSG_RESULT($DEFAULT_64BIT);
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#AC_MSG_RESULT($DEFAULT_64BIT - got $BITS_GOT wanted $BITS_REQ okness $BITS_OK);
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if test "$BITS_OK" != "yes"; then
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# These results can't be cached because is sets compiler flags.
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if test "$BITS_REQ" = "64" -o "$BITS_REQ" = "64else32"; then
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AC_MSG_CHECKING([how to build 64-bit executables])
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if test "$GCC" = yes; then
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#DONOTUSE# This test is wrong. If it's GCC, just test m64
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#DONOTUSE#if test -n "`$CXX -dumpspecs 2>&1 && $CC -dumpspecs 2>&1 | grep -v __LP64__`"; then
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OLD_CFLAGS="${CFLAGS}"
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OLD_CXXFLAGS="${CXXFLAGS}"
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CFLAGS="${CFLAGS} -m64"
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CXXFLAGS="${CXXFLAGS} -m64"
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AC_COMPILE_IFELSE(int main(void) {return (sizeof(void*)*8==64)?0:1;},
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ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no)
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if test "$ENABLE_64BIT_LIBS" != yes; then
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# Nope. back out changes.
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CFLAGS="${OLD_CFLAGS}"
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CXXFLAGS="${OLD_CXXFLAGS}"
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fi
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else
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case "${host}" in
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sparc*-*-solaris*)
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# 0. save old flags
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OLD_CFLAGS="${CFLAGS}"
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OLD_CXXFLAGS="${CXXFLAGS}"
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# 1. try -m64
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CFLAGS="${CFLAGS} -m64"
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CXXFLAGS="${CXXFLAGS} -m64"
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AC_COMPILE_IFELSE(int main(void) {return (sizeof(void*)*8==64)?0:1;},
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ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no)
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if test "$ENABLE_64BIT_LIBS" != yes; then
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# Nope. back out changes.
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CFLAGS="${OLD_CFLAGS}"
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CXXFLAGS="${OLD_CXXFLAGS}"
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# 2. try xarch=v9 [deprecated]
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## TODO: cross compile: the following won't work.
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SPARCV9=`isainfo -n 2>&1 | grep sparcv9`
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SOL64=`$CXX -xarch=v9 2>&1 && $CC -xarch=v9 2>&1 | grep -v usage:`
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# "Warning: -xarch=v9 is deprecated, use -m64 to create 64-bit programs"
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if test -z "$SOL64" && test -n "$SPARCV9"; then
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CFLAGS="${CFLAGS} -xtarget=ultra -xarch=v9"
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CXXFLAGS="${CXXFLAGS} -xtarget=ultra -xarch=v9"
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LDFLAGS="${LDFLAGS} -xtarget=ultra -xarch=v9"
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ENABLE_64BIT_LIBS=yes
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else
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ENABLE_64BIT_LIBS=no
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fi
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fi
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;;
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i386-*-solaris*)
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# 0. save old flags
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OLD_CFLAGS="${CFLAGS}"
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OLD_CXXFLAGS="${CXXFLAGS}"
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# 1. try -m64
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CFLAGS="${CFLAGS} -m64"
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CXXFLAGS="${CXXFLAGS} -m64"
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AC_COMPILE_IFELSE(int main(void) {return (sizeof(void*)*8==64)?0:1;},
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ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no)
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if test "$ENABLE_64BIT_LIBS" != yes; then
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# Nope. back out changes.
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CFLAGS="${OLD_CFLAGS}"
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CXXFLAGS="${OLD_CXXFLAGS}"
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# 2. try the older compiler option
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## TODO: cross compile problem
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SOL64=`$CXX -xtarget=generic64 2>&1 && $CC -xtarget=generic64 2>&1 | grep -v usage:`
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if test -z "$SOL64" && test -n "$AMD64"; then
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CFLAGS="${CFLAGS} -xtarget=generic64"
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CXXFLAGS="${CXXFLAGS} -xtarget=generic64"
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ENABLE_64BIT_LIBS=yes
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else
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ENABLE_64BIT_LIBS=no
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fi
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fi
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;;
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ia64-*-linux*)
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# check for ecc/ecpc compiler support
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## TODO: cross compiler problem
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if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Intel`"; then
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if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Itanium`"; then
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ENABLE_64BIT_LIBS=yes
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else
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ENABLE_64BIT_LIBS=no
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fi
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else
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# unknown
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ENABLE_64BIT_LIBS=no
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fi
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;;
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*-*-cygwin)
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# vcvarsamd64.bat should have been used to enable 64-bit builds.
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# We only do this check to display the correct answer.
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## TODO: cross compiler problem
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if test -n "`$CXX -help 2>&1 | grep 'for x64'`"; then
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ENABLE_64BIT_LIBS=yes
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else
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# unknown
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ENABLE_64BIT_LIBS=no
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fi
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;;
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*-*-aix*|powerpc64-*-linux*)
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OLD_CFLAGS="${CFLAGS}"
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OLD_CXXFLAGS="${CXXFLAGS}"
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OLD_LDFLAGS="${LDFLAGS}"
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CFLAGS="${CFLAGS} -q64"
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CXXFLAGS="${CXXFLAGS} -q64"
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LDFLAGS="${LDFLAGS} -q64"
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AC_COMPILE_IFELSE(int main(void) {return (sizeof(void*)*8==64)?0:1;},
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ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no)
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if test "$ENABLE_64BIT_LIBS" != yes; then
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CFLAGS="${OLD_CFLAGS}"
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CXXFLAGS="${OLD_CXXFLAGS}"
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LDFLAGS="${OLD_LDFLAGS}"
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else
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case "${host}" in
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*-*-aix*)
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ARFLAGS="${ARFLAGS} -X64"
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esac
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fi
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;;
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*-*-hpux*)
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# First we try the newer +DD64, if that doesn't work,
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# try other options.
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OLD_CFLAGS="${CFLAGS}"
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OLD_CXXFLAGS="${CXXFLAGS}"
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CFLAGS="${CFLAGS} +DD64"
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CXXFLAGS="${CXXFLAGS} +DD64"
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AC_COMPILE_IFELSE(int main(void) {return (sizeof(void*)*8==64)?0:1;},
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ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no)
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if test "$ENABLE_64BIT_LIBS" != yes; then
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CFLAGS="${OLD_CFLAGS}"
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CXXFLAGS="${OLD_CXXFLAGS}"
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CFLAGS="${CFLAGS} +DA2.0W"
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CXXFLAGS="${CXXFLAGS} +DA2.0W"
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AC_COMPILE_IFELSE(int main(void) {return (sizeof(void*)*8==64)?0:1;},
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ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no)
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if test "$ENABLE_64BIT_LIBS" != yes; then
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CFLAGS="${OLD_CFLAGS}"
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CXXFLAGS="${OLD_CXXFLAGS}"
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fi
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fi
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;;
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*-*ibm-openedition*|*-*-os390*)
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OLD_CFLAGS="${CFLAGS}"
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OLD_CXXFLAGS="${CXXFLAGS}"
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OLD_LDFLAGS="${LDFLAGS}"
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CFLAGS="${CFLAGS} -Wc,lp64"
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CXXFLAGS="${CXXFLAGS} -Wc,lp64"
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LDFLAGS="${LDFLAGS} -Wl,lp64"
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AC_COMPILE_IFELSE(int main(void) {return (sizeof(void*)*8==64)?0:1;},
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ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no)
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if test "$ENABLE_64BIT_LIBS" != yes; then
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CFLAGS="${OLD_CFLAGS}"
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CXXFLAGS="${OLD_CXXFLAGS}"
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LDFLAGS="${OLD_LDFLAGS}"
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fi
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;;
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*)
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ENABLE_64BIT_LIBS=no
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;;
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esac
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fi
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AC_MSG_RESULT($ENABLE_64BIT_LIBS)
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elif test "$BITS_REQ" = "32"; then
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AC_MSG_CHECKING([how to build 32-bit executables])
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if test "$GCC" = yes; then
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OLD_CFLAGS="${CFLAGS}"
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OLD_CXXFLAGS="${CXXFLAGS}"
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CFLAGS="${CFLAGS} -m32"
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CXXFLAGS="${CXXFLAGS} -m32"
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AC_COMPILE_IFELSE(int main(void) {return (sizeof(void*)*8==32)?0:1;},
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ENABLE_64BIT_LIBS=no, ENABLE_64BIT_LIBS=yes)
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if test "$ENABLE_64BIT_LIBS" != no; then
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CFLAGS="${OLD_CFLAGS}"
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CXXFLAGS="${OLD_CXXFLAGS}"
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fi
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else
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echo " Note: not sure how to build 32 bit executables on this platform."
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fi
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# 'How to build 32 bit...' will be opposite of 64 bit
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if test "$ENABLE_64BIT_LIBS" = yes; then
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AC_MSG_RESULT(no)
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else
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if test "$ENABLE_64BIT_LIBS" = no; then
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(unknown)
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fi
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fi
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fi
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# Individual tests that fail should reset their own flags.
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NOW_64BIT=no
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NOW_32BIT=no
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AC_MSG_CHECKING([whether runnable 64-bit binaries are being built ])
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AC_TRY_RUN(int main(void) {return (sizeof(void*)*8==64)?0:1;},
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NOW_64BIT=yes, NOW_64BIT=no, NOW_64BIT=unknown)
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AC_MSG_RESULT($NOW_64BIT);
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AC_MSG_CHECKING([whether runnable 32-bit binaries are being built ])
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AC_TRY_RUN(int main(void) {return (sizeof(void*)*8==32)?0:1;},
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NOW_32BIT=yes, NOW_32BIT=no, NOW_32BIT=unknown)
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AC_MSG_RESULT($NOW_32BIT);
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if test "$BITS_REQ" = "32" -a "$NOW_64BIT" = "yes"; then
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AC_MSG_ERROR([Requested $BITS_REQ but got 64 bit binaries])
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elif test "$BITS_REQ" = "64" -a "$NOW_32BIT" = "yes"; then
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AC_MSG_ERROR([Requested $BITS_REQ but got 32 bit binaries])
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elif test "$NOW_32BIT" != "yes" -a "$NOW_64BIT" != "yes"; then
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echo "*** Note: Cannot determine bitness - if configure fails later, try --with-library-bits=nochange"
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fi
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fi
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])
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# Strict compilation options.
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AC_DEFUN(AC_CHECK_STRICT_COMPILE,
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[
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AC_MSG_CHECKING([whether strict compiling is on])
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AC_ARG_ENABLE(strict,[ --enable-strict compile with strict compiler options [default=yes]], [
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if test "$enableval" = no
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then
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ac_use_strict_options=no
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else
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ac_use_strict_options=yes
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fi
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], [ac_use_strict_options=yes])
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AC_MSG_RESULT($ac_use_strict_options)
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if test "$ac_use_strict_options" = yes
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then
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if test "$GCC" = yes
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then
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CFLAGS="$CFLAGS -Wall -ansi -pedantic -Wshadow -Wpointer-arith -Wmissing-prototypes -Wwrite-strings -Wno-long-long"
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case "${host}" in
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*-*-solaris*)
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CFLAGS="$CFLAGS -D__STDC__=0";;
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esac
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else
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case "${host}" in
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*-*-cygwin)
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if test "`$CC /help 2>&1 | head -c9`" = "Microsoft"
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then
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CFLAGS="$CFLAGS /W4"
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fi
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esac
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fi
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if test "$GXX" = yes
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then
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CXXFLAGS="$CXXFLAGS -W -Wall -ansi -pedantic -Wpointer-arith -Wwrite-strings -Wno-long-long"
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case "${host}" in
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*-*-solaris*)
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CXXFLAGS="$CXXFLAGS -D__STDC__=0";;
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esac
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else
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case "${host}" in
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*-*-cygwin)
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if test "`$CXX /help 2>&1 | head -c9`" = "Microsoft"
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then
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CXXFLAGS="$CXXFLAGS /W4"
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fi
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esac
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fi
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fi
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])
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