| # Copyright (C) 2016 and later: Unicode, Inc. and others. | |
| # License & terms of use: http://www.unicode.org/copyright.html | |
| # Copyright (c) 1999-2016, International Business Machines Corporation and | |
| # others. All Rights Reserved. | |
| # acinclude.m4 for ICU | |
| # Don't edit aclocal.m4, do edit acinclude.m4 | |
| # 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 "$GCC" = yes; then | |
| icu_cv_host_frag=mh-linux | |
| else | |
| icu_cv_host_frag=mh-linux-va | |
| fi ;; | |
| *-*-linux*|*-*-gnu|*-*-k*bsd*-gnu|*-*-kopensolaris*-gnu) icu_cv_host_frag=mh-linux ;; | |
| i[[34567]]86-*-cygwin) | |
| if test "$GCC" = yes; then | |
| icu_cv_host_frag=mh-cygwin | |
| else | |
| icu_cv_host_frag=mh-cygwin-msvc | |
| fi ;; | |
| x86_64-*-cygwin) | |
| if test "$GCC" = yes; then | |
| icu_cv_host_frag=mh-cygwin64 | |
| else | |
| icu_cv_host_frag=mh-cygwin-msvc | |
| fi ;; | |
| *-*-mingw*) | |
| if test "$GCC" = yes; then | |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
| #ifndef __MINGW64__ | |
| #error This is not MinGW64 | |
| #endif]])], [icu_cv_host_frag=mh-mingw64], | |
| [icu_cv_host_frag=mh-mingw]) | |
| else | |
| case "${host}" in | |
| *-*-mingw*) icu_cv_host_frag=mh-msys-msvc ;; | |
| *-*-cygwin) icu_cv_host_frag=mh-cygwin-msvc ;; | |
| esac | |
| fi ;; | |
| *-*-*bsd*|*-*-dragonfly*) icu_cv_host_frag=mh-bsd-gcc ;; | |
| *-*-aix*) | |
| if test "$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_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="${CXXFLAGS_OLD}" | |
| # 2. try xarch=v9 [deprecated] | |
| ## TODO: cross compile: the following won't work. | |
| SPARCV9=`isainfo -n 2>&1 | grep sparcv9` | |
| SOL64=`$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 "$GCC" = yes | |
| then | |
| case "${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 | |
| ]) | |