diff options
Diffstat (limited to 'libcpp/configure.ac')
| -rw-r--r-- | libcpp/configure.ac | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/libcpp/configure.ac b/libcpp/configure.ac new file mode 100644 index 000000000..7fe89f8d1 --- /dev/null +++ b/libcpp/configure.ac @@ -0,0 +1,192 @@ +# -*- 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 -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]) + +# 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 <sys/types.h> +], +[if ((uchar *)0) return 0; + if (sizeof(uchar)) return 0;], +ac_cv_type_uchar=yes, ac_cv_type_uchar=no)]) +if test $ac_cv_type_uchar = yes; then + AC_DEFINE(HAVE_UCHAR, 1, + [Define if <sys/types.h> defines \`uchar'.]) +fi + +AM_ICONV + +# More defines and substitutions. +PACKAGE="$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 $target in + alpha*-*-* | \ + arm*-*-*eabi* | \ + arm*-*-rtems[.0-9]* | \ + arm*-*-symbianelf* | \ + x86_64-*-* | \ + ia64-*-* | \ + hppa*64*-*-* | \ + i[34567]86-*-darwin* | \ + i[34567]86-*-solaris2.1[0-9]* | \ + i[34567]86-w64-mingw* | \ + mips*-*-* | \ + mmix-*-* | \ + powerpc*-*-* | \ + rs6000*-*-* | \ + s390*-*-* | \ + sparc*-*-* | \ + spu-*-* | \ + sh[123456789lbe]*-*-* | sh-*-*) + need_64bit_hwint=yes ;; + i[34567]86-*-linux*) + if test "x$enable_targets" = xall; then + need_64bit_hwint=yes + else + need_64bit_hwint=no + fi + ;; + *) + 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 |