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