506 lines
18 KiB
Plaintext
506 lines
18 KiB
Plaintext
# Copyright (C) 2016 and later: Unicode, Inc. and others.
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# License & terms of use: http://www.unicode.org/copyright.html
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# Copyright (c) 1999-2016, International Business Machines Corporation and
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# others. All Rights Reserved.
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# acinclude.m4 for ICU
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# Don't edit aclocal.m4, do edit acinclude.m4
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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 for ${host}],
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[icu_cv_host_frag],
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[
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case "${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 "$GCC" = yes; then
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icu_cv_host_frag=mh-linux
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else
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icu_cv_host_frag=mh-linux-va
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fi ;;
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*-*-linux*|*-*-gnu|*-*-k*bsd*-gnu|*-*-kopensolaris*-gnu) icu_cv_host_frag=mh-linux ;;
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i[[34567]]86-*-cygwin)
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if test "$GCC" = yes; then
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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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x86_64-*-cygwin)
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if test "$GCC" = yes; then
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icu_cv_host_frag=mh-cygwin64
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else
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icu_cv_host_frag=mh-cygwin-msvc
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fi ;;
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*-*-mingw*)
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if test "$GCC" = yes; then
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#ifndef __MINGW64__
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#error This is not MinGW64
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#endif]])], [icu_cv_host_frag=mh-mingw64],
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[icu_cv_host_frag=mh-mingw])
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else
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case "${host}" in
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*-*-mingw*) icu_cv_host_frag=mh-msys-msvc ;;
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*-*-cygwin) icu_cv_host_frag=mh-cygwin-msvc ;;
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esac
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fi ;;
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*-*-*bsd*|*-*-dragonfly*) icu_cv_host_frag=mh-bsd-gcc ;;
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*-*-aix*)
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if test "$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) icu_cv_host_frag=mh-beos ;;
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*-*-haiku) icu_cv_host_frag=mh-haiku ;;
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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_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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$4
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fi])
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# Check if we can build and use 64-bit libraries
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AC_DEFUN([AC_CHECK_64BIT_LIBS],
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[
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BITS_REQ=nochange
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ENABLE_64BIT_LIBS=unknown
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## revisit this for cross-compile.
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AC_ARG_ENABLE(64bit-libs,
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[ --enable-64bit-libs (deprecated, use --with-library-bits) build 64-bit libraries [default= platform default]],
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[echo "note, use --with-library-bits instead of --*-64bit-libs"
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case "${enableval}" in
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no|false|32) with_library_bits=32; ;;
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yes|true|64) with_library_bits=64else32 ;;
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nochange) with_library_bits=nochange; ;;
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*) AC_MSG_ERROR(bad value ${enableval} for '--*-64bit-libs') ;;
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esac] )
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AC_ARG_WITH(library-bits,
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[ --with-library-bits=bits specify how many bits to use for the library (32, 64, 64else32, nochange) [default=nochange]],
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[case "${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 ${withval} for --with-library-bits) ;;
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esac])
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# don't use these for cross compiling
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if test "$cross_compiling" = "yes" -a "${BITS_REQ}" != "nochange"; then
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AC_MSG_ERROR([Don't specify bitness when cross compiling. See readme.html for help with cross compilation., and set compiler options manually.])
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fi
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AC_CHECK_SIZEOF([void *])
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AC_MSG_CHECKING([whether runnable 64 bit binaries are built by default])
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case $ac_cv_sizeof_void_p in
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8) DEFAULT_64BIT=yes ;;
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4) DEFAULT_64BIT=no ;;
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*) DEFAULT_64BIT=unknown
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esac
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BITS_GOT=unknown
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# 'OK' here means, we can exit any further checking, everything's copa
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BITS_OK=yes
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# do we need to check for buildable/runnable 32 or 64 bit?
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BITS_CHECK_32=no
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BITS_CHECK_64=no
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# later, can we run the 32/64 bit binaries so made?
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BITS_RUN_32=no
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BITS_RUN_64=no
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if test "$DEFAULT_64BIT" = "yes"; then
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# we get 64 bits by default.
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BITS_GOT=64
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case "$BITS_REQ" in
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32)
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# need to look for 32 bit support.
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BITS_CHECK_32=yes
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# not copa.
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BITS_OK=no;;
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# everyone else is happy.
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nochange) ;;
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*) ;;
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esac
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elif test "$DEFAULT_64BIT" = "no"; then
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# not 64 bit by default.
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BITS_GOT=32
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case "$BITS_REQ" in
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64|64else32)
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BITS_CHECK_64=yes
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#BITS_CHECK_32=yes
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BITS_OK=no;;
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nochange) ;;
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*) ;;
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esac
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elif test "$DEFAULT_64BIT" = "unknown"; then
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# cross compiling.
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BITS_GOT=unknown
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case "$BITS_REQ" in
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64|64else32) BITS_OK=no
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BITS_CHECK_32=yes
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BITS_CHECK_64=yes ;;
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32) BITS_OK=no;;
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nochange) ;;
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*) ;;
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esac
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fi
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AC_MSG_RESULT($DEFAULT_64BIT);
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if test "$BITS_OK" != "yes"; then
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# not copa. back these up.
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CFLAGS_OLD="${CFLAGS}"
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CXXFLAGS_OLD="${CXXFLAGS}"
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LDFLAGS_OLD="${LDFLAGS}"
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ARFLAGS_OLD="${ARFLAGS}"
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CFLAGS_32="${CFLAGS}"
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CXXFLAGS_32="${CXXFLAGS}"
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LDFLAGS_32="${LDFLAGS}"
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ARFLAGS_32="${ARFLAGS}"
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CFLAGS_64="${CFLAGS}"
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CXXFLAGS_64="${CXXFLAGS}"
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LDFLAGS_64="${LDFLAGS}"
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ARFLAGS_64="${ARFLAGS}"
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CAN_BUILD_64=unknown
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CAN_BUILD_32=unknown
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# These results can't be cached because is sets compiler flags.
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if test "$BITS_CHECK_64" = "yes"; then
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AC_MSG_CHECKING([how to build 64-bit executables])
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CAN_BUILD_64=no
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####
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# Find out if we think we can *build* for 64 bit. Doesn't check whether we can run it.
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# Note, we don't have to actually check if the options work- we'll try them before using them.
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# So, only try actually testing the options, if you are trying to decide between multiple options.
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# On exit from the following clauses:
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# if CAN_BUILD_64=yes:
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# *FLAGS are assumed to contain the right settings for 64bit
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# else if CAN_BUILD_64=no: (default)
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# *FLAGS are assumed to be trashed, and will be reset from *FLAGS_OLD
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if test "$GCC" = yes; then
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CFLAGS="${CFLAGS} -m64"
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CXXFLAGS="${CXXFLAGS} -m64"
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
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CAN_BUILD_64=yes, CAN_BUILD_64=no)
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else
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case "${host}" in
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sparc*-*-solaris*)
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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_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
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CAN_BUILD_64=yes, CAN_BUILD_64=no, CAN_BUILD_64=unknown)
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if test "$CAN_BUILD_64" != yes; then
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# Nope. back out changes.
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CFLAGS="${CFLAGS_OLD}"
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CXXFLAGS="${CXXFLAGS_OLD}"
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# 2. try xarch=v9 [deprecated]
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## TODO: cross compile: the following won't work.
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SPARCV9=`isainfo -n 2>&1 | grep sparcv9`
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SOL64=`$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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CAN_BUILD_64=yes
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fi
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fi
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;;
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i386-*-solaris*)
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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_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
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CAN_BUILD_64=yes, CAN_BUILD_64=no, CAN_BUILD_64=unknown)
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if test "$CAN_BUILD_64" != yes; then
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# Nope. back out changes.
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CFLAGS="${CFLAGS_OLD}"
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CXXFLAGS="${CXXFLAGS_OLD}"
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# 2. try the older compiler option
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## TODO: cross compile problem
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AMD64=`isainfo -n 2>&1 | grep amd64`
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SOL64=`$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="${CXXFLAGS} -xtarget=generic64"
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CAN_BUILD_64=yes
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fi
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fi
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;;
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ia64-*-linux*)
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# check for ecc/ecpc compiler support
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## TODO: cross compiler problem
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if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Intel`"; then
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if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Itanium`"; then
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CAN_BUILD_64=yes
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fi
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fi
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;;
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*-*-cygwin)
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# vcvarsamd64.bat should have been used to enable 64-bit builds.
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# We only do this check to display the correct answer.
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## TODO: cross compiler problem
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if test -n "`$CXX -help 2>&1 | grep 'for x64'`"; then
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CAN_BUILD_64=yes
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fi
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;;
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*-*-aix*|powerpc64-*-linux*)
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CFLAGS="${CFLAGS} -q64"
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CXXFLAGS="${CXXFLAGS} -q64"
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LDFLAGS="${LDFLAGS} -q64"
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
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CAN_BUILD_64=yes, CAN_BUILD_64=no)
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if test "$CAN_BUILD_64" = yes; then
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# worked- set other options.
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case "${host}" in
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*-*-aix*)
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# tell AIX what executable mode to use.
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ARFLAGS="${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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CFLAGS="${CFLAGS} +DD64"
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CXXFLAGS="${CXXFLAGS} +DD64"
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
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CAN_BUILD_64=yes, CAN_BUILD_64=no)
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if test "$CAN_BUILD_64" != yes; then
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# reset
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CFLAGS="${CFLAGS_OLD}"
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CXXFLAGS="${CXXFLAGS_OLD}"
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# append
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CFLAGS="${CFLAGS} +DA2.0W"
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CXXFLAGS="${CXXFLAGS} +DA2.0W"
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
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CAN_BUILD_64=yes, CAN_BUILD_64=no)
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fi
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;;
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*-*ibm-openedition*|*-*-os390*)
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CFLAGS="${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([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
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CAN_BUILD_64=yes, CAN_BUILD_64=no)
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;;
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*)
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# unknown platform.
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;;
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esac
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fi
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AC_MSG_RESULT($CAN_BUILD_64)
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if test "$CAN_BUILD_64" = yes; then
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AC_MSG_CHECKING([whether runnable 64-bit binaries are being built ])
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AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==64)?0:1;}])],
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BITS_RUN_64=yes, BITS_RUN_64=no, BITS_RUN_64=unknown)
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AC_MSG_RESULT($BITS_RUN_64);
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CFLAGS_64="${CFLAGS}"
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CXXFLAGS_64="${CXXFLAGS}"
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LDFLAGS_64="${LDFLAGS}"
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ARFLAGS_64="${ARFLAGS}"
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fi
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# put it back.
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CFLAGS="${CFLAGS_OLD}"
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CXXFLAGS="${CXXFLAGS_OLD}"
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LDFLAGS="${LDFLAGS_OLD}"
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ARFLAGS="${ARFLAGS_OLD}"
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fi
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if test "$BITS_CHECK_32" = "yes"; then
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# see comment under 'if BITS_CHECK_64', above.
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AC_MSG_CHECKING([how to build 32-bit executables])
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if test "$GCC" = yes; then
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CFLAGS="${CFLAGS} -m32"
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CXXFLAGS="${CXXFLAGS} -m32"
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==32)?0:1;}])],
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CAN_BUILD_32=yes, CAN_BUILD_32=no)
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fi
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AC_MSG_RESULT($CAN_BUILD_32)
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if test "$CAN_BUILD_32" = yes; then
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AC_MSG_CHECKING([whether runnable 32-bit binaries are being built ])
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AC_RUN_IFELSE([AC_LANG_SOURCE([int main(void) {return (sizeof(void*)*8==32)?0:1;}])],
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BITS_RUN_32=yes, BITS_RUN_32=no, BITS_RUN_32=unknown)
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AC_MSG_RESULT($BITS_RUN_32);
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CFLAGS_32="${CFLAGS}"
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CXXFLAGS_32="${CXXFLAGS}"
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LDFLAGS_32="${LDFLAGS}"
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ARFLAGS_32="${ARFLAGS}"
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fi
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# put it back.
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CFLAGS="${CFLAGS_OLD}"
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CXXFLAGS="${CXXFLAGS_OLD}"
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LDFLAGS="${LDFLAGS_OLD}"
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ARFLAGS="${ARFLAGS_OLD}"
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fi
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##
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# OK. Now, we've tested for 32 and 64 bitness. Let's see what we'll do.
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#
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# First, implement 64else32
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if test "$BITS_REQ" = "64else32"; then
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if test "$BITS_RUN_64" = "yes"; then
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BITS_REQ=64
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else
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# no changes.
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BITS_OK=yes
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fi
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fi
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# implement.
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if test "$BITS_REQ" = "32" -a "$BITS_RUN_32" = "yes"; then
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CFLAGS="${CFLAGS_32}"
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CXXFLAGS="${CXXFLAGS_32}"
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LDFLAGS="${LDFLAGS_32}"
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ARFLAGS="${ARFLAGS_32}"
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BITS_OK=yes
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elif test "$BITS_REQ" = "64" -a "$BITS_RUN_64" = "yes"; then
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CFLAGS="${CFLAGS_64}"
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CXXFLAGS="${CXXFLAGS_64}"
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LDFLAGS="${LDFLAGS_64}"
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ARFLAGS="${ARFLAGS_64}"
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BITS_OK=yes
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elif test "$BITS_OK" != "yes"; then
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AC_MSG_ERROR([Requested $BITS_REQ bit binaries but could not compile and execute them. See readme.html for help with cross compilation., and set compiler options manually.])
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fi
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fi
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])
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# Strict compilation options.
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AC_DEFUN([AC_CHECK_STRICT_COMPILE],
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[
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AC_MSG_CHECKING([whether strict compiling is on])
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AC_ARG_ENABLE(strict,[ --enable-strict compile with strict compiler options [default=yes]], [
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if test "$enableval" = no
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then
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ac_use_strict_options=no
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else
|
|
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 "$GCC" = yes
|
|
then
|
|
case "${host}" in
|
|
*-*-solaris*)
|
|
# Don't use -std=c11 on Solaris because of timezone check fails
|
|
;;
|
|
*)
|
|
# Do not use -ansi. It limits us to C90, and it breaks some platforms.
|
|
# We use -std=c11 to disable the gnu99 defaults and its associated warnings
|
|
CFLAGS="$CFLAGS -std=c11"
|
|
;;
|
|
esac
|
|
|
|
CFLAGS="$CFLAGS -Wall -pedantic -Wshadow -Wpointer-arith -Wmissing-prototypes -Wwrite-strings"
|
|
else
|
|
case "${host}" in
|
|
*-*-cygwin)
|
|
if test "`$CC /help 2>&1 | head -c9`" = "Microsoft"
|
|
then
|
|
CFLAGS="$CFLAGS /W4"
|
|
fi ;;
|
|
*-*-mingw*)
|
|
CFLAGS="$CFLAGS -W4" ;;
|
|
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="$CXXFLAGS /W4"
|
|
fi ;;
|
|
*-*-mingw*)
|
|
CFLAGS="$CFLAGS -W4" ;;
|
|
esac
|
|
fi
|
|
fi
|
|
])
|
|
|
|
|