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configure.in
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configure.in
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# -*-autoconf-*-
AC_COPYRIGHT([ Copyright (c) 1999-2012, International Business Machines Corporation and others. All Rights Reserved. ])
# configure.in for ICU
# Stephen F. Booth, heavily modified by Yves and others
# Check for autoconf version
AC_PREREQ(2.68)
# Process this file with autoconf to produce a configure script
AC_INIT([ICU])
#TODO: IcuBug:8502
#AC_INIT([ICU],
# m4_esyscmd_s([sed -n 's/^[ ]*#[ ]*define[ ]*U_ICU_VERSION[ ]*"\([^"]*\)".*/\1/p' "./common/unicode/uvernum.h]"),
# [http://icu-project.org/bugs],
# [International Components for Unicode],
# [http://icu-project.org])
AC_CONFIG_SRCDIR([common/unicode/utypes.h])
PACKAGE="icu"
AC_SUBST(PACKAGE)
# Use custom echo test for newline option
# Current autoconf (2.65) gives incorrect echo newline option
# for icu-config
# This may be removed later - mow (June 17, 2010)
ICU_ECHO_C= ICU_ECHO_N= ICU_ECHO_T=
case `/bin/sh -c "echo -n x"` in
-n*)
case `/bin/sh -c "echo 'x\c'"` in
*c*) ICU_ECHO_T=' ';; # ECHO_T is single tab character.
*) ICU_ECHO_C='\c';;
esac;;
*)
ICU_ECHO_N='-n';;
esac
AC_SUBST(ICU_ECHO_N)
AC_SUBST(ICU_ECHO_C)
AC_SUBST(ICU_ECHO_T)
AC_MSG_CHECKING(for ICU version numbers)
# Get the ICU version from uversion.h or other headers
geticuversion() {
[sed -n 's/^[ ]*#[ ]*define[ ]*U_ICU_VERSION[ ]*"\([^"]*\)".*/\1/p' "$@"]
}
getuversion() {
[sed -n 's/^[ ]*#[ ]*define[ ]*U_UNICODE_VERSION[ ]*"\([^"]*\)".*/\1/p' "$@"]
}
VERSION=`geticuversion $srcdir/common/unicode/uvernum.h`
if test x"$VERSION" = x; then
as_fn_error $? "Cannot determine ICU version number from uvernum.h header file" "$LINENO" 5
fi
#TODO: IcuBug:8502
#if test "$VERSION" != "$PACKAGE_VERSION"; then
# AC_MSG_ERROR([configure was generated for $PACKAGE_VERSION but uvernum.h has $VERSION - please rerun autoconf])
#fi
UNICODE_VERSION=`getuversion $srcdir/common/unicode/uchar.h`
if test x"$UNICODE_VERSION" = x; then
AC_MSG_ERROR([Cannot determine Unicode version number from uchar.h header file])
fi
# Compute a reasonable library version from the release version. This is
# very bad, but that's wanted... We want to make sure that the LIB_VERSION
# has at least a dot in it, so we'll add a .0 if needed.
#[LIB_VERSION=`echo $VERSION | sed -e 's/\.//' -e 's/^\([^.]*\)$/\1.0/'`]
LIB_VERSION=$VERSION
LIB_VERSION_MAJOR=`echo $LIB_VERSION | sed 's/\..*//'`
AC_SUBST(VERSION)
AC_SUBST(LIB_VERSION)
AC_SUBST(LIB_VERSION_MAJOR)
AC_MSG_RESULT([release $VERSION, library $LIB_VERSION, unicode version $UNICODE_VERSION])
AC_SUBST(UNICODE_VERSION)
# Determine the host system
AC_CANONICAL_HOST
AC_SUBST(CPPFLAGS)
# This variable is needed on z/OS because the C++ compiler only recognizes .C
_CXX_CXXSUFFIX=cpp
export _CXX_CXXSUFFIX
# Accumulate #defines
CONFIG_CPPFLAGS=""
UCONFIG_CPPFLAGS=""
# Check whether to build debug libraries
AC_MSG_CHECKING([whether to build debug libraries])
enabled=no
ENABLE_DEBUG=0
AC_ARG_ENABLE(debug,
[ --enable-debug build debug libraries and enable the U_DEBUG define [default=no]],
[ case "${enableval}" in
yes|"") enabled=yes; ENABLE_DEBUG=1; CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DU_DEBUG=1" ;;
*) ;;
esac],
)
AC_MSG_RESULT($enabled)
AC_SUBST(ENABLE_DEBUG)
# Check whether to build release libraries
AC_MSG_CHECKING([whether to build release libraries])
enabled=yes
ENABLE_RELEASE=1
AC_ARG_ENABLE(release,
[ --enable-release build release libraries [default=yes]],
[ case "${enableval}" in
no) enabled=no; ENABLE_RELEASE=0 ;;
*) ;;
esac],
)
AC_MSG_RESULT($enabled)
AC_SUBST(ENABLE_RELEASE)
# Don't use the default C/CXXFLags
: ${CFLAGS=""}
: ${CXXFLAGS=""}
# Checks for compilers
AC_PROG_CC([clang gcc cc c99 c89 xlc_r xlc cl.exe icc])
# Make sure that we try clang++ first, which provides C++11 support.
# The g++ compiler is less likely to support C++11.
AC_PROG_CXX([clang++ g++ c++ gpp xlC_r xlC aCC CC cxx cc++ cl.exe icc FCC KCC RCC])
# Ensure that if CXXFLAGS/CFLAGS were not set when calling configure, set it correctly based on (enable/disable) debug or release option
# The release mode use is the default one for autoconf
if test "$GCC" = yes; then
if test "$CFLAGS" = ""; then
if test "$ENABLE_DEBUG" = 1; then
CFLAGS=-g
fi
if test "$ENABLE_RELEASE" = 1; then
CFLAGS="$CFLAGS -O2"
fi
fi
if test "$CXXFLAGS" = ""; then
if test "$ENABLE_DEBUG" = 1; then
CXXFLAGS=-g
fi
if test "$ENABLE_RELEASE" = 1; then
CXXFLAGS="$CXXFLAGS -O2"
fi
fi
fi
AC_PROG_CPP
AC_PROG_INSTALL
AC_SUBST(cross_compiling)
dnl use the pld hack to get ac_fn_cxx_try_link defined globally and not local
AC_LANG_PUSH([C++])
AC_LINK_IFELSE([AC_LANG_PROGRAM()])
AC_LANG_POP([C++])
# make sure install is relative to srcdir - if a script
if test "$srcdir" = "."; then
# If srcdir isn't just ., then (srcdir) is already prepended.
if test "${ac_install_sh}" = "${INSTALL}"; then
INSTALL="\\\$(top_srcdir)/${ac_install_sh}"
fi
fi
#AC_CHECK_PROG(AUTOCONF, autoconf, autoconf, true)
#AC_CHECK_PROG(STRIP, strip, strip, true)
# Check for the platform make
AC_PATH_PROGS(U_MAKE, gmake gnumake, make)
AC_SUBST(U_MAKE)
AC_ARG_WITH(cross-build,
[ --with-cross-build=dir specify an absolute path to the build directory of an ICU built for the current platform [default=no cross dir]],
[cross_buildroot="${withval}"],
[cross_buildroot=""])
if test "X$cross_buildroot" = "X"; then
if test "$cross_compiling" = "yes"; then
AC_MSG_ERROR([Error! Cross compiling but no --with-cross-build option specified - please supply the path to an executable ICU's build root])
dnl '
fi
else
if test -f "${cross_buildroot}/config/icucross.mk"; then
AC_MSG_RESULT([Using cross buildroot: $cross_buildroot])
else
if test -d "${cross_buildroot}"; then
AC_MSG_ERROR([${cross_buildroot}/config/icucross.mk not found. Please build ICU in ${cross_buildroot} first.])
else
AC_MSG_ERROR([No such directory ${cross_buildroot} supplied as the argument to --with-cross-build. Use an absolute path.])
fi
fi
fi
AC_SUBST(cross_buildroot)
# Check for doxygen to generate documentation
AC_PATH_PROG(DOXYGEN,doxygen,,$PATH:/usr/local/bin:/usr/bin)
# Check that the linker is usable
ICU_PROG_LINK
# Determine the executable suffix
# We don't use AC_EXEEXT because some compilers output separate debugging
# files, which confuses the AC_EXEEXT macro.
AC_MSG_CHECKING(checking for executable suffix)
case "${host}" in
*-*-cygwin*|*-*-mingw*) EXEEXT=.exe ;;
*) EXEEXT="" ;;
esac
ac_exeext=$EXEEXT
AC_MSG_RESULT($EXEEXT)
AC_SUBST(EXEEXT)
# Determine how strict we want to be when compiling
AC_CHECK_STRICT_COMPILE
# Check if we can build and use 64-bit libraries
AC_CHECK_64BIT_LIBS
AC_SUBST(ARFLAGS)
AC_SUBST(COMPILE_LINK_ENVVAR)
# Determine the Makefile fragment
ICU_CHECK_MH_FRAG
# Checks for libraries and other host specific stuff
# On HP/UX, don't link to -lm from a shared lib because it isn't
# PIC (at least on 10.2)
case "${host}" in
*-*-hpux*) AC_CHECK_LIB(m, floor, LIB_M="-lm") ;;
*) AC_CHECK_LIB(m, floor)
LIB_M="" ;;
esac
AC_SUBST(LIB_M)
# Check whether to build shared libraries
AC_MSG_CHECKING([whether to build shared libraries])
enabled=no
AC_ARG_ENABLE(shared,
[ --enable-shared build shared libraries [default=yes]],
[ case "${enableval}" in
yes|"") enabled=yes; ENABLE_SHARED=YES ;;
no);;
*) ;;
esac],
[enabled=yes; ENABLE_SHARED=YES]
)
AC_MSG_RESULT($enabled)
AC_SUBST(ENABLE_SHARED)
# Check whether to build static libraries
AC_MSG_CHECKING([whether to build static libraries])
enabled=no
AC_ARG_ENABLE(static,
[ --enable-static build static libraries [default=no]],
[ case "${enableval}" in
yes|"") enabled=yes; ENABLE_STATIC=YES ;;
no) ;;
*) ;;
esac],
)
AC_MSG_RESULT($enabled)
AC_SUBST(ENABLE_STATIC)
# When building release static library, there might be some optimization flags we can use
if test "$ENABLE_STATIC" = "YES"; then
if test "$ENABLE_SHARED" != "YES"; then
if test "$ENABLE_RELEASE" = 1; then
AC_MSG_CHECKING([whether we can use static library optimization option])
CHECK_STATIC_OPT_FLAG=no
OLD_CPPFLAGS="${CPPFLAGS}"
OLD_LDFLAGS="${LDFLAGS}"
case "${host}" in
*-linux*|i*86-*-*bsd*|i*86-pc-gnu)
if test "$GCC" = yes; then
CPPFLAGS="${CPPFLAGS} -ffunction-sections -fdata-sections"
LDFLAGS="${LDFLAGS} -Wl,--gc-sections"
fi
;;
*)
;;
esac
AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [CHECK_STATIC_OPT_FLAG=yes], [CHECK_STATIC_OPT_FLAG=no])
AC_MSG_RESULT($CHECK_STATIC_OPT_FLAG)
if test "$CHECK_STATIC_OPT_FLAG" = no; then
CPPFLAGS="${OLD_CPPFLAGS}"
LDFLAGS="${OLD_LDFLAGS}"
fi
fi
fi
fi
# Check whether to enable auto cleanup of libraries
AC_MSG_CHECKING([whether to enable auto cleanup of libraries])
enabled=no
UCLN_NO_AUTO_CLEANUP=1
AC_ARG_ENABLE(auto-cleanup,
[ --enable-auto-cleanup enable auto cleanup of libraries [default=no]],
[ case "${enableval}" in
yes) enabled=yes;
CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DUCLN_NO_AUTO_CLEANUP=0";
UCLN_NO_AUTO_CLEANUP=0
;;
*) ;;
esac],
)
AC_MSG_RESULT($enabled)
AC_SUBST(UCLN_NO_AUTO_CLEANUP)
# MSVC floating-point option
MSVC_RELEASE_FLAG=""
if test $enabled = yes
then
if test $icu_cv_host_frag = mh-cygwin-msvc
then
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#if defined _MSC_VER && _MSC_VER >= 1400
#else
Microsoft Visual C++ < 2005
#endif
]], [[]])],[MSVC_RELEASE_FLAG="/fp:precise"],[MSVC_RELEASE_FLAG="/Op"])
CFLAGS="${CFLAGS} ${MSVC_RELEASE_FLAG}"
CXXFLAGS="${CXXFLAGS} ${MSVC_RELEASE_FLAG}"
fi
fi
# Check whether to enabled draft APIs
AC_MSG_CHECKING([whether to enable draft APIs])
enabled=yes
U_DEFAULT_SHOW_DRAFT=1
AC_ARG_ENABLE(draft,
[ --enable-draft enable draft APIs (and internal APIs) [default=yes]],
[ case "${enableval}" in
no) enabled=no; U_DEFAULT_SHOW_DRAFT=0;
CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DU_DEFAULT_SHOW_DRAFT=0"
;;
*) ;;
esac],
)
AC_MSG_RESULT($enabled)
# Make sure that we can use draft API in ICU.
if test "$U_DEFAULT_SHOW_DRAFT" = 0; then
CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DU_SHOW_DRAFT_API"
fi
AC_SUBST(U_DEFAULT_SHOW_DRAFT)
AC_PROG_RANLIB
# look for 'ar' the proper way
AC_CHECK_TOOL(AR, ar, false)
AC_MSG_CHECKING([whether to enable renaming of symbols])
enabled=yes
U_DISABLE_RENAMING=0
AC_ARG_ENABLE(renaming,
[ --enable-renaming add a version suffix to symbols [default=yes]],
[ case "${enableval}" in
yes|"") enabled=yes ;;
no) enabled=no; U_DISABLE_RENAMING=1;
UCONFIG_CPPFLAGS="${UCONFIG_CPPFLAGS} -DU_DISABLE_RENAMING=1"
;;
*) ;;
esac],
)
AC_MSG_RESULT($enabled)
AC_SUBST(U_DISABLE_RENAMING)
AC_MSG_CHECKING([whether to enable function and data tracing])
enabled=no
U_ENABLE_TRACING=0
AC_ARG_ENABLE(tracing,
[ --enable-tracing enable function and data tracing [default=no]],
[ case "${enableval}" in
yes|"") enabled=yes;
CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DU_ENABLE_TRACING=1";
U_ENABLE_TRACING=1 ;;
no) enabled=no; U_ENABLE_TRACING=0 ;;
*) ;;
esac],
)
AC_MSG_RESULT($enabled)
AC_SUBST(U_ENABLE_TRACING)
U_ENABLE_DYLOAD=1
enable=yes
AC_MSG_CHECKING([whether to enable dynamic loading of plugins])
AC_ARG_ENABLE(dyload,
[ --disable-dyload disable dynamic loading [default=no]],
[ case "${enableval}" in
yes|"")
U_ENABLE_DYLOAD=1
enable=yes
;;
no)
U_ENABLE_DYLOAD=0;
enable=no;
CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DU_ENABLE_DYLOAD=0";
;;
*) ;;
esac],
)
AC_MSG_RESULT($enable)
AC_SUBST(U_ENABLE_DYLOAD)
if test "$enable" = "yes"; then
AC_CHECK_HEADERS([dlfcn.h])
#AC_MSG_RESULT($enabled)
AC_SEARCH_LIBS([dlopen], [dl])
AC_CHECK_FUNCS([dlopen])
if test "x$ac_cv_func_dlopen" != xyes; then
CONFIG_CPPFLAGS="$CONFIG_CPPFLAGS -DHAVE_DLOPEN=0"
fi
fi
# Check for miscellanous functions.
# So, use for putil / tools only.
# Note that this will generate HAVE_GETTIMEOFDAY, not U_HAVE_GETTIMEOFDAY
AC_CHECK_FUNCS([gettimeofday])
# Check whether to use the evil rpath or not
AC_ARG_ENABLE(rpath,
[ --enable-rpath use rpath when linking [default is only if necessary]],
[ case "${enableval}" in
yes|"") ENABLE_RPATH=YES ;;
no) ;;
*) ;;
esac],
[ENABLE_RPATH=NO]
)
AC_SUBST(ENABLE_RPATH)
AC_LANG_PUSH([C++])
AC_MSG_CHECKING([[if we have a C++ compiler]])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[cxx_okay=yes],[cxx_okay=no])
if test $cxx_okay = yes
then
AC_MSG_RESULT([[Good]])
else
AC_MSG_RESULT([[no]])
AC_MSG_ERROR([[C++ compiler $CXX does not work or no compiler found]])
fi
AC_MSG_CHECKING([[if #include <string> works]])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <string>]], [[]])], [ac_cv_header_stdstring=yes], [ac_cv_header_stdstring=no])
AC_MSG_RESULT($ac_cv_header_stdstring)
if test $ac_cv_header_stdstring = yes
then
U_HAVE_STD_STRING=1
else
U_HAVE_STD_STRING=0
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_STD_STRING=0"
fi
AC_SUBST(U_HAVE_STD_STRING)
AC_LANG_POP([C++])
# Always build ICU with multi-threading support.
threads=true
ICU_USE_THREADS=1
OLD_LIBS=${LIBS}
if test $threads = true; then
# For Compaq Tru64 (OSF1), we must look for pthread_attr_init
# and must do this before seaching for pthread_mutex_destroy, or
# we will pick up libpthreads.so not libpthread.so
# If this fails, then we must test for HPUX specials, before
# moving on to a more generic test
AC_CHECK_LIB(pthread, pthread_attr_init)
if test $ac_cv_lib_pthread_pthread_attr_init = yes; then
ICU_USE_THREADS=1
else
# Locate the right library for POSIX threads. We look for the
# symbols in the libraries first, because on Solaris libc provides
# pthread_create but libpthread has the real code :(
# AIX uses libpthreads instead of libpthread, and HP/UX uses libpthread
# FreeBSD users may need libpthread if they do not have libc_r.
AC_SEARCH_LIBS_FIRST(pthread_mutex_destroy, pthread pthreads c_r )
if test "$ac_cv_search_pthread_mutex_destroy" != no; then
ICU_USE_THREADS=1
else
# For HP 11
AC_CHECK_LIB(pthread, pthread_mutex_init)
if test $ac_cv_lib_pthread_pthread_mutex_init = yes; then
ICU_USE_THREADS=1
fi
fi
AC_CHECK_FUNC(pthread_mutex_lock)
if test $ac_cv_func_pthread_mutex_lock = yes; then
ICU_USE_THREADS=1
fi
fi
# Check to see if we are using CygWin with MSVC
case "${host}" in
*-pc-cygwin*|*-pc-mingw*)
# For gcc, the thread options are set by mh-mingw/mh-cygwin
# For msvc, the thread options are set by runConfigureICU
ICU_USE_THREADS=1
;;
*-*-hpux*)
# Add -mt because it does several nice things on newer compilers.
case "${icu_cv_host_frag}" in
mh-hpux-acc)
OLD_CXXFLAGS="${CXXFLAGS}"
CXXFLAGS="${CXXFLAGS} -mt"
if test x"`${CXX} ${CXXFLAGS} 2>&1`" != x""; then
CXXFLAGS="${OLD_CXXFLAGS}"
fi
;;
esac
;;
*-*-solaris*)
case "${icu_cv_host_frag}" in
mh-solaris)
LIBS="${LIBS} -mt"
;;
esac
;;
esac
fi
AC_ARG_ENABLE(weak-threads,
[ --enable-weak-threads weakly reference the threading library [default=no]],
[case "${enableval}" in
yes)
LIB_THREAD="${LIBS%${OLD_LIBS}}"
LIBS=${OLD_LIBS}
;;
no) ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-weak-threads) ;;
esac])
AC_SUBST(LIB_THREAD)
# Check for mmap()
# The AC_FUNC_MMAP macro doesn't work properly. It seems to be too specific.
# Do this check instead.
HAVE_MMAP=0
AC_MSG_CHECKING([for mmap])
AC_CACHE_VAL(ac_cv_func_mmap_ok,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>], [mmap((void *)0, 0, PROT_READ, 0, 0, 0);])],[ac_cv_func_mmap_ok=yes],[ac_cv_func_mmap_ok=no])] )
AC_MSG_RESULT($ac_cv_func_mmap_ok)
if test $ac_cv_func_mmap_ok = yes
then
HAVE_MMAP=1
else
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_MMAP=0"
fi
AC_SUBST(HAVE_MMAP)
AC_MSG_CHECKING([for genccode assembly])
# Check to see if genccode can generate simple assembly.
GENCCODE_ASSEMBLY=
case "${host}" in
*-linux*|*-kfreebsd*-gnu*|i*86-*-*bsd*|i*86-pc-gnu)
if test "$GCC" = yes; then
# We're using gcc, and the simple -a gcc command line works for genccode
GENCCODE_ASSEMBLY="-a gcc"
fi ;;
i*86-*-solaris*)
if test "$GCC" = yes; then
# When using gcc, look if we're also using GNU as.
# When using GNU as, the simple -a gcc command line works for genccode.
asv=`"${CC}" -print-prog-name=as 2>/dev/null`
asv=`"${asv}" --version 2>/dev/null`
case "X${asv}" in
X*GNU*) GENCCODE_ASSEMBLY="-a gcc" ;;
X*) GENCCODE_ASSEMBLY="-a sun-x86" ;;
esac
unset asv
else
GENCCODE_ASSEMBLY="-a sun-x86"
fi ;;
sparc-*-solaris*)
GENCCODE_ASSEMBLY="-a sun"
;;
ia64-*-hpux*)
GENCCODE_ASSEMBLY="-a aCC-ia64"
;;
esac
AC_SUBST(GENCCODE_ASSEMBLY)
AC_MSG_RESULT($GENCCODE_ASSEMBLY)
# Checks for header files
AC_CHECK_HEADERS(inttypes.h)
if test $ac_cv_header_inttypes_h = no; then
U_HAVE_INTTYPES_H=0
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INTTYPES_H=0"
else
U_HAVE_INTTYPES_H=1
fi
if test "$CC" = ccc; then
AC_MSG_RESULT("C compiler set to CCC ${CC}" )
case "${host}" in
alpha*-*-*) U_HAVE_INTTYPES_H=0;
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INTTYPES_H=0"
esac
fi
AC_SUBST(U_HAVE_INTTYPES_H)
AC_CHECK_HEADERS(dirent.h)
if test $ac_cv_header_dirent_h = no; then
U_HAVE_DIRENT_H=0
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_DIRENT_H=0"
else
U_HAVE_DIRENT_H=1
fi
AC_SUBST(U_HAVE_DIRENT_H)
# Check for endianness
AC_C_BIGENDIAN()
if test $ac_cv_c_bigendian = no; then
U_IS_BIG_ENDIAN=0
U_ENDIAN_CHAR="l"
else
U_IS_BIG_ENDIAN=1
U_ENDIAN_CHAR="b"
fi
AC_SUBST(U_IS_BIG_ENDIAN)
# Do various POSIX related checks
U_HAVE_NL_LANGINFO_CODESET=0
U_NL_LANGINFO_CODESET=-1
AC_CHECK_FUNC(nl_langinfo,[U_HAVE_NL_LANGINFO=1],[U_HAVE_NL_LANGINFO=0])
dnl AC_SUBST(U_HAVE_NL_LANGINFO)
if test $U_HAVE_NL_LANGINFO -eq 1; then
AC_CACHE_CHECK([for nl_langinfo's argument to obtain the codeset],
ac_cv_nl_langinfo_codeset,
[ac_cv_nl_langinfo_codeset="unknown"
for a in CODESET _NL_CTYPE_CODESET_NAME; do
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]], [[nl_langinfo($a);]])],[ac_cv_nl_langinfo_codeset="$a"; break],[])]
done)
if test x$ac_cv_nl_langinfo_codeset != xunknown
then
U_HAVE_NL_LANGINFO_CODESET=1
U_NL_LANGINFO_CODESET=$ac_cv_nl_langinfo_codeset
if test "x${ac_cv_nl_langinfo_codeset}" != "xCODESET"
then
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DNL_LANGINFO_CODESET=${ac_cv_nl_langinfo_codeset}"
fi
else
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_NL_LANGINFO_CODESET=0"
fi
fi
AC_SUBST(U_HAVE_NL_LANGINFO_CODESET)
AC_SUBST(U_NL_LANGINFO_CODESET)
# Namespace support checks
AC_LANG(C++)
AC_MSG_CHECKING([for namespace support])
AC_CACHE_VAL(ac_cv_namespace_ok,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([namespace x_version {void f(){}}
namespace x = x_version;
using namespace x_version;
], [f();])],[ac_cv_namespace_ok=yes],[ac_cv_namespace_ok=no])] )
AC_MSG_RESULT($ac_cv_namespace_ok)
if test $ac_cv_namespace_ok = no
then
AC_MSG_ERROR(Namespace support is required to build ICU.)
fi
AC_MSG_CHECKING([for properly overriding new and delete])
U_OVERRIDE_CXX_ALLOCATION=0
U_HAVE_PLACEMENT_NEW=0
AC_CACHE_VAL(ac_cv_override_cxx_allocation_ok,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
class UMemory {
public:
void *operator new(size_t size) {return malloc(size);}
void *operator new[](size_t size) {return malloc(size);}
void operator delete(void *p) {free(p);}
void operator delete[](void *p) {free(p);}
};
]], [])],[ac_cv_override_cxx_allocation_ok=yes],[ac_cv_override_cxx_allocation_ok=no])] )
AC_MSG_RESULT($ac_cv_override_cxx_allocation_ok)
if test $ac_cv_override_cxx_allocation_ok = yes
then
U_OVERRIDE_CXX_ALLOCATION=1
AC_MSG_CHECKING([for placement new and delete])
AC_CACHE_VAL(ac_cv_override_placement_new_ok,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
class UMemory {
public:
void *operator new(size_t size) {return malloc(size);}
void *operator new[](size_t size) {return malloc(size);}
void operator delete(void *p) {free(p);}
void operator delete[](void *p) {free(p);}
void * operator new(size_t, void *ptr) { return ptr; }
void operator delete(void *, void *) {}
};
]], [])],[ac_cv_override_placement_new_ok=yes],[ac_cv_override_placement_new_ok=no])] )
AC_MSG_RESULT($ac_cv_override_placement_new_ok)
if test $ac_cv_override_placement_new_ok = yes
then
U_HAVE_PLACEMENT_NEW=1
else
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_PLACEMENT_NEW=0"
fi
else
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_OVERRIDE_CXX_ALLOCATION=0"
fi
AC_SUBST(U_OVERRIDE_CXX_ALLOCATION)
AC_SUBST(U_HAVE_PLACEMENT_NEW)
AC_LANG(C)
AC_CHECK_FUNC(popen)
if test x$ac_cv_func_popen = xyes
then
U_HAVE_POPEN=1
else
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_POPEN=0"
U_HAVE_POPEN=0
fi
AC_SUBST(U_HAVE_POPEN)
AC_CHECK_FUNC(tzset)
U_HAVE_TZSET=0
if test x$ac_cv_func_tzset = xyes
then
U_TZSET=tzset
U_HAVE_TZSET=1
else
AC_CHECK_FUNC(_tzset)
if test x$ac_cv_func__tzset = xyes
then
U_TZSET=_tzset
U_HAVE_TZSET=1
else
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_TZSET=0"
fi
fi
AC_SUBST(U_HAVE_TZSET)
AC_SUBST(U_TZSET)
U_HAVE_TZNAME=0
AC_CACHE_CHECK(for tzname,ac_cv_var_tzname,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#ifndef __USE_POSIX
#define __USE_POSIX
#endif
#include <stdlib.h>
#include <time.h>
#ifndef tzname /* For SGI. */
extern char *tzname[]; /* RS6000 and others reject char **tzname. */
#endif]], [atoi(*tzname);])],[ac_cv_var_tzname=yes],[ac_cv_var_tzname=no])])
if test $ac_cv_var_tzname = yes; then
U_TZNAME=tzname
U_HAVE_TZNAME=1
else
AC_CACHE_CHECK(for _tzname,ac_cv_var__tzname,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
#include <time.h>
extern char *_tzname[];]], [atoi(*_tzname);])],[ac_cv_var__tzname=yes],[ac_cv_var__tzname=no])])
if test $ac_cv_var__tzname = yes; then
U_TZNAME=_tzname
U_HAVE_TZNAME=1
else
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_TZNAME=0"
fi
fi
AC_SUBST(U_HAVE_TZNAME)
AC_SUBST(U_TZNAME)
AC_CACHE_CHECK(for timezone,ac_cv_var_timezone,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([#ifndef __USE_POSIX
#define __USE_POSIX
#endif
#ifndef __USE_XOPEN
#define __USE_XOPEN
#endif
#include <time.h>
], [[timezone = 1;]])],[ac_cv_var_timezone=yes],[ac_cv_var_timezone=no])])
U_HAVE_TIMEZONE=0
if test $ac_cv_var_timezone = yes; then
U_TIMEZONE=timezone
U_HAVE_TIMEZONE=1
else
AC_CACHE_CHECK(for __timezone,ac_cv_var___timezone,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[__timezone = 1;]])],[ac_cv_var___timezone=yes],[ac_cv_var___timezone=no])])
if test $ac_cv_var___timezone = yes; then
U_TIMEZONE=__timezone
U_HAVE_TIMEZONE=1
else
AC_CACHE_CHECK(for _timezone,ac_cv_var__timezone,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[_timezone = 1;]])],[ac_cv_var__timezone=yes],[ac_cv_var__timezone=no])])
if test $ac_cv_var__timezone = yes; then
U_TIMEZONE=_timezone
U_HAVE_TIMEZONE=1
else
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_TIMEZONE=0"
fi
fi
fi
AC_SUBST(U_HAVE_TIMEZONE)
AC_SUBST(U_TIMEZONE)
# Checks for typedefs
AC_CHECK_TYPE(int8_t,signed char)
AC_CHECK_TYPE(uint8_t,unsigned char)
AC_CHECK_TYPE(int16_t,signed short)
AC_CHECK_TYPE(uint16_t,unsigned short)
AC_CHECK_TYPE(int32_t,signed long)
AC_CHECK_TYPE(uint32_t,unsigned long)
AC_CHECK_TYPE(int64_t,signed long long)
AC_CHECK_TYPE(uint64_t,unsigned long long)
if test $ac_cv_type_int8_t = no; then
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INT8_T=0"
fi
if test $ac_cv_type_uint8_t = no; then
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_UINT8_T=0"
fi
if test $ac_cv_type_int16_t = no; then
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INT16_T=0"
fi
if test $ac_cv_type_uint16_t = no; then
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_UINT16_T=0"
fi
if test $ac_cv_type_int32_t = no; then
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INT32_T=0"
fi
if test $ac_cv_type_uint32_t = no; then
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_UINT32_T=0"
fi
if test $ac_cv_type_int64_t = no; then
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_INT64_T=0"
fi
if test $ac_cv_type_uint64_t = no; then
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_UINT64_T=0"
fi
# Do various wchar_t related checks
AC_CHECK_HEADER(wchar.h)
if test "$ac_cv_header_wchar_h" = no
then
U_HAVE_WCHAR_H=0
U_HAVE_WCSCPY=0
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_WCHAR_H=0 -DU_HAVE_WCSCPY=0"
else
AC_DEFINE([HAVE_WCHAR_H], [1], [wchar.h was found.])
U_HAVE_WCHAR_H=1
# Some broken systems have wchar.h but not some of its functions...
AC_SEARCH_LIBS(wcscpy, wcs w)
if test "$ac_cv_search_wcscpy" != no; then
U_HAVE_WCSCPY=1
else
U_HAVE_WCSCPY=0
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_WCSCPY=0"
fi
fi
AC_SUBST(U_HAVE_WCHAR_H)
AC_SUBST(U_HAVE_WCSCPY)
AC_CHECK_SIZEOF([wchar_t], 0, [
#if STDC_HEADERS
#include <stddef.h>
#endif
#include <stdlib.h>
#if HAVE_WCHAR_H
#include <string.h>
#include <wchar.h>
#endif])
U_SIZEOF_WCHAR_T=$ac_cv_sizeof_wchar_t
# We do this check to verify that everything is okay.
if test $U_SIZEOF_WCHAR_T = 0; then
if test $U_HAVE_WCHAR_H=1; then
AC_MSG_ERROR(There is wchar.h but the size of wchar_t is 0)
fi
fi
AC_MSG_CHECKING([for UTF-16 string literal support])
U_CHECK_UTF16_STRING=1
CHECK_UTF16_STRING_RESULT="unknown"
case "${host}" in
*-*-aix*|powerpc64-*-linux*)
if test "$GCC" = no; then
OLD_CFLAGS="${CFLAGS}"
OLD_CXXFLAGS="${CXXFLAGS}"
CFLAGS="${CFLAGS} -qutf"
CXXFLAGS="${CXXFLAGS} -qutf"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[const unsigned short hello[] = u"hello";]], [[]])],[U_CHECK_UTF16_STRING=1],[U_CHECK_UTF16_STRING=0])
if test "$U_CHECK_UTF16_STRING" = 0; then
CFLAGS="${OLD_CFLAGS}"
CXXFLAGS="${OLD_CXXFLAGS}"
else
CHECK_UTF16_STRING_RESULT="-qutf"
fi
fi
;;
*-*-solaris*)
if test "$GCC" = no; then
OLD_CFLAGS="${CFLAGS}"
OLD_CXXFLAGS="${CXXFLAGS}"
CFLAGS="${CFLAGS} -xustr=ascii_utf16_ushort"
CXXFLAGS="${CXXFLAGS} -xustr=ascii_utf16_ushort"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[const unsigned short hello[] = U"hello";]], [[]])],[U_CHECK_UTF16_STRING=1],[U_CHECK_UTF16_STRING=0])
if test "$U_CHECK_UTF16_STRING" = 0; then
CFLAGS="${OLD_CFLAGS}"
CXXFLAGS="${OLD_CXXFLAGS}"
else
CHECK_UTF16_STRING_RESULT="-xustr=ascii_utf16_ushort"
# Since we can't detect the availability of this UTF-16 syntax at compile time,
# we depend on configure telling us that we can use it.
# Since we can't ensure ICU users use -xustr=ascii_utf16_ushort,
# we only use this macro within ICU.
# If an ICU user uses icu-config, this feature will be enabled.
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_CHECK_UTF16_STRING=1"
U_CHECK_UTF16_STRING=0
fi
fi
;;
*-*-hpux*)
if test "$GCC" = no; then
# The option will be detected at compile time without additional compiler options.
CHECK_UTF16_STRING_RESULT="available"
fi
;;
*-*-cygwin)
# wchar_t can be used
CHECK_UTF16_STRING_RESULT="available"
;;
*)
;;
esac
# GCC >= 4.4 supports UTF16 string literals. The CFLAGS and CXXFLAGS may change in the future.
if test "$CHECK_UTF16_STRING_RESULT" = "unknown"; then
if test "$GCC" = yes; then
OLD_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} -std=gnu99"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
static const char16_t test[] = u"This is a UTF16 literal string.";
]], [[]])],[CC_UTF16_STRING=1],[CC_UTF16_STRING=0])
if test "$CC_UTF16_STRING" = 1; then
CHECK_UTF16_STRING_RESULT="C only";
else
CFLAGS="${OLD_CFLAGS}"
fi
fi
if test "$GXX" = yes; then
OLD_CXXFLAGS="${CXXFLAGS}"
# -Wno-return-type-c-linkage is desired so that stable ICU API is not warned about.
CXXFLAGS="${CXXFLAGS} -std=c++11"
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
static const char16_t test[] = u"This is a UTF16 literal string.";
]], [[]])],[CXX_UTF16_STRING=1],[CXX_UTF16_STRING=0])
AC_LANG_POP([C++])
if test "$CXX_UTF16_STRING" = 1; then
if test "$CC_UTF16_STRING" = 1; then
CHECK_UTF16_STRING_RESULT="available";
else
CHECK_UTF16_STRING_RESULT="C++ only";
fi
else
CXXFLAGS="${OLD_CXXFLAGS}"
fi
fi
fi
AC_MSG_RESULT($CHECK_UTF16_STRING_RESULT)
# Enable/disable extras
AC_ARG_ENABLE(extras,
[ --enable-extras build ICU extras [default=yes]],
[case "${enableval}" in
yes) extras=true ;;
no) extras=false ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-extras) ;;