/
githubmirror
/
icu
Обзор
Документация
Войти
/
githubmirror
/
icu
Код
Запросы
0
Пакеты
0
Релизы
0
Аналитика
Безопасность
main
icu4c/source/acinclude.m4
494 строки
18 KB
Yuta Saito
ICU-22838 Add WebAssembly/WASI cross-compilation support
25 дек 2025, 01:32
25 дек 2025, 01:32
604b426
Код
Авторство
О чём код?
# 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 ;; powerpc*-apple-darwin*) icu_cv_host_frag=mh-darwin-ppc ;; *-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 ;; *-wasi*) icu_cv_host_frag=mh-wasi ;; *) 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 $BITS_REQ bit binaries but could not compile and execute them. See readme.html for help with cross compilation., and set compiler options manually.]) fi fi ]) # Strict compilation options. AC_DEFUN([AC_CHECK_STRICT_COMPILE], [ AC_MSG_CHECKING([whether strict compiling is on]) AC_ARG_ENABLE(strict,[ --disable-strict do not compile with strict compiler options], [ if test "$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 "$GCC" = yes then CFLAGS="$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 ])