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#                                               -*- Autoconf -*-

# Process this file with autoconf to produce a configure script.

AC_PREREQ(2.64)

AC_INIT(cpplib, [ ], gcc-bugs@gcc.gnu.org, cpplib)

AC_CONFIG_SRCDIR(ucnid.h)

AC_CONFIG_MACRO_DIR(../config)

AC_CANONICAL_SYSTEM

# Checks for programs.

AC_PROG_MAKE_SET

AC_PROG_INSTALL

AC_PROG_CC

AC_PROG_CXX

AC_PROG_RANLIB

AC_USE_SYSTEM_EXTENSIONS

AC_SYS_LARGEFILE

# See if we are building gcc with C++.

# Do this early so setting lang to C++ affects following tests

AC_ARG_ENABLE(build-with-cxx,

[  --enable-build-with-cxx build with C++ compiler instead of C compiler],

ENABLE_BUILD_WITH_CXX=$enableval,

ENABLE_BUILD_WITH_CXX=no)

AC_SUBST(ENABLE_BUILD_WITH_CXX)

MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing

AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal])

AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf])

AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])

# Figure out what compiler warnings we can enable.

# See config/warnings.m4 for details.

ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wno-narrowing -Wwrite-strings \

                          -Wmissing-format-attribute], [warn])

ACX_PROG_CC_WARNING_OPTS([-Wstrict-prototypes -Wmissing-prototypes \

                          -Wold-style-definition -Wc++-compat], [c_warn])

ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])

# Disable exceptions and RTTI if building with g++

ACX_PROG_CC_WARNING_OPTS(

       m4_quote(m4_do([-fno-exceptions -fno-rtti])), [noexception_flags])

# Only enable with --enable-werror-always until existing warnings are

# corrected.

ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])

# Dependency checking.

ZW_CREATE_DEPDIR

if test "$ENABLE_BUILD_WITH_CXX" = "no"; then

ZW_PROG_COMPILER_DEPENDENCIES([CC])

else

AC_LANG_PUSH([C++])

AC_COMPILE_IFELSE([[int i;]], [],

                  [AC_MSG_ERROR([C++ compiler missing or inoperational])])

AC_LANG_POP([C++])

ZW_PROG_COMPILER_DEPENDENCIES([CXX])

fi

# Checks for header files.

AC_HEADER_TIME

ACX_HEADER_STRING

AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \

        stdlib.h strings.h string.h sys/file.h unistd.h)

# Checks for typedefs, structures, and compiler characteristics.

AC_C_BIGENDIAN

AC_C_CONST

AC_C_INLINE

AC_FUNC_OBSTACK

AC_TYPE_OFF_T

AC_TYPE_SIZE_T

AC_TYPE_SSIZE_T

AC_TYPE_UINTPTR_T

AC_CHECK_TYPE(ptrdiff_t, int)

AC_STRUCT_TM

AC_CHECK_SIZEOF(int)

AC_CHECK_SIZEOF(long)

define(libcpp_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl

  ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl

  fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl

  fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl

  putchar_unlocked putc_unlocked)

AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS)

AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, getopt, vasprintf])

AC_CHECK_DECLS(m4_split(m4_normalize(libcpp_UNLOCKED_FUNCS)))

# Checks for library functions.

AC_FUNC_ALLOCA

AC_HEADER_STDC

AM_LANGINFO_CODESET

ZW_GNU_GETTEXT_SISTER_DIR

AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,

[AC_TRY_COMPILE([

#include 

],

[if ((uchar *)0) return 0;

 if (sizeof(uchar)) return 0;],

ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])

if test $ac_cv_type_uchar = yes; then

  AC_DEFINE(HAVE_UCHAR, 1,

  [Define if  defines \`uchar'.])

fi

# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which exposes a different

# iconv() prototype.

AS_IF([test "$ENABLE_BUILD_WITH_CXX" = "yes"],

  [AC_LANG_PUSH([C++])

   AM_ICONV

   AC_LANG_POP([C++])],

  [AM_ICONV])

# More defines and substitutions.

PACKAGE="$PACKAGE_TARNAME"

AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Define to the name of this package.])

AC_SUBST(PACKAGE)

if test "x$enable_nls" != xno; then

  USED_CATALOGS='$(CATALOGS)'

else

  USED_CATALOGS=

fi

AC_SUBST(USED_CATALOGS)

AC_ARG_ENABLE(maintainer-mode,

[  --enable-maintainer-mode enable rules only needed by maintainers],,

enable_maintainer_mode=no)

if test "x$enable_maintainer_mode" = xno; then

  MAINT='#'

else

  MAINT=

fi

AC_SUBST(MAINT)

AC_ARG_ENABLE(checking,

[  --enable-checking      enable expensive run-time checks],,

enable_checking=no)

if test $enable_checking != no ; then

  AC_DEFINE(ENABLE_CHECKING, 1,

[Define if you want more run-time sanity checks.])

fi

m4_changequote(,)

case $target in

        alpha*-*-* | \

        arm*-*-*eabi* | \

        arm*-*-symbianelf* | \

        x86_64-*-* | \

        ia64-*-* | \

        hppa*64*-*-* | \

        i[34567]86-*-* | x86_64-*-solaris2.1[0-9]* | \

        mips*-*-* | \

        mmix-*-* | \

        powerpc*-*-* | \

        rs6000*-*-* | \

        s390*-*-* | \

        sparc*-*-* | \

        spu-*-* | \

        sh[123456789lbe]*-*-* | sh-*-* | \

        tilegx-*-* | tilepro-*-* )

                need_64bit_hwint=yes ;;

        *)

                need_64bit_hwint=no ;;

esac

case $need_64bit_hwint:$ac_cv_sizeof_long in

        *:8 | no:*) host_wide_int=long ;;

        *) host_wide_int='long long' ;;

esac

m4_changequote([,])

AC_DEFINE_UNQUOTED(HOST_WIDE_INT, $host_wide_int,

[Define to the widest efficient host integer type at least

   as wide as the target's size_t type.])

case $target in

  i?86-* | x86_64-*)

    AC_TRY_COMPILE([], [asm ("pcmpestri %0, %%xmm0, %%xmm1" : : "i"(0))],

      [AC_DEFINE([HAVE_SSE4], [1],

                 [Define to 1 if you can assemble SSE4 insns.])])

esac

# Output.

AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])

AC_CONFIG_FILES(Makefile)

AC_OUTPUT