# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
-AC_PREREQ(2.59)
AC_INIT(cpplib, [ ], gcc-bugs@gcc.gnu.org, cpplib)
AC_CONFIG_SRCDIR(ucnid.h)
AC_CONFIG_MACRO_DIR(../config)
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AC_PROG_CC
+AC_PROG_CXX
AC_PROG_RANLIB
+AC_CHECK_TOOL(AR, ar)
+
+AC_USE_SYSTEM_EXTENSIONS
+AC_SYS_LARGEFILE
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])
+if test -z "$ETAGS"; then
+ ETAGS=etags
+fi
+AC_SUBST([ETAGS])
+
# Figure out what compiler warnings we can enable.
# See config/warnings.m4 for details.
-ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
- -Wmissing-prototypes -Wold-style-definition])
+ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wno-narrowing -Wwrite-strings \
+ -Wmissing-format-attribute], [warn])
+ACX_PROG_CC_WARNING_OPTS([-Wstrict-prototypes -Wmissing-prototypes \
+ -Wold-style-definition -Wc++-compat], [c_warn])
ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
+# Disable exceptions and RTTI if building with g++
+ACX_PROG_CC_WARNING_OPTS(
+ m4_quote(m4_do([-fno-exceptions -fno-rtti])), [noexception_flags])
+
# Only enable with --enable-werror-always until existing warnings are
# corrected.
ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
# Dependency checking.
ZW_CREATE_DEPDIR
-ZW_PROG_COMPILER_DEPENDENCIES([CC])
+AC_LANG_PUSH([C++])
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], [],
+ [AC_MSG_ERROR([C++ compiler missing or inoperational])])
+AC_LANG_POP([C++])
+ZW_PROG_COMPILER_DEPENDENCIES([CXX])
# Checks for header files.
AC_HEADER_TIME
ACX_HEADER_STRING
-AC_CHECK_HEADERS(iconv.h locale.h fcntl.h limits.h stddef.h \
+
+AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \
stdlib.h strings.h string.h sys/file.h unistd.h)
# Checks for typedefs, structures, and compiler characteristics.
+AC_C_BIGENDIAN
AC_C_CONST
AC_C_INLINE
AC_FUNC_OBSTACK
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+AC_TYPE_UINTPTR_T
+AC_CHECK_TYPE(ptrdiff_t, int)
+AC_TYPE_UINT64_T
+if test x"$ac_cv_c_uint64_t" = x"no"; then
+ AC_MSG_ERROR([uint64_t not found])
+fi
AC_STRUCT_TM
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
putchar_unlocked putc_unlocked)
AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS)
-AC_CHECK_DECLS(m4_split(m4_normalize(abort asprintf basename errno getopt \
- libcpp_UNLOCKED_FUNCS vasprintf)))
+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
[Define if <sys/types.h> defines \`uchar'.])
fi
+AC_CHECK_SIZEOF(ino_t)
+AC_CHECK_SIZEOF(dev_t)
+
+# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which exposes a different
+# iconv() prototype.
+AC_LANG_PUSH([C++])
AM_ICONV
+AC_LANG_POP([C++])
# More defines and substitutions.
PACKAGE="$PACKAGE_TARNAME"
fi
AC_SUBST(MAINT)
+# Enable expensive internal checks
+is_release=
+if test -f $srcdir/../gcc/DEV-PHASE \
+ && test x"`cat $srcdir/../gcc/DEV-PHASE`" != xexperimental; then
+ is_release=yes
+fi
+
AC_ARG_ENABLE(checking,
-[ --enable-checking enable expensive run-time checks],,
-enable_checking=no)
+[AS_HELP_STRING([[--enable-checking[=LIST]]],
+ [enable expensive run-time checks. With LIST,
+ enable only specific categories of checks.
+ Categories are: yes,no,all,none,release.
+ Flags are: misc,valgrind or other strings])],
+[ac_checking_flags="${enableval}"],[
+# Determine the default checks.
+if test x$is_release = x ; then
+ ac_checking_flags=yes
+else
+ ac_checking_flags=release
+fi])
+IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
+for check in release $ac_checking_flags
+do
+ case $check in
+ # these set all the flags to specific states
+ yes|all) ac_checking=1 ; ac_assert_checking=1 ; ac_valgrind_checking= ;;
+ no|none) ac_checking= ; ac_assert_checking= ; ac_valgrind_checking= ;;
+ release) ac_checking= ; ac_assert_checking=1 ; ac_valgrind_checking= ;;
+ # these enable particular checks
+ assert) ac_assert_checking=1 ;;
+ misc) ac_checking=1 ;;
+ valgrind) ac_valgrind_checking=1 ;;
+ # accept
+ *) ;;
+ esac
+done
+IFS="$ac_save_IFS"
+
+if test x$ac_checking != x ; then
+ AC_DEFINE(CHECKING_P, 1,
+[Define to 1 if you want more run-time sanity checks.])
+else
+ AC_DEFINE(CHECKING_P, 0)
+fi
+
+if test x$ac_assert_checking != x ; then
+ AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
+[Define if you want assertions enabled. This is a cheap check.])
+fi
-if test $enable_checking != no ; then
- AC_DEFINE(ENABLE_CHECKING, 1,
-[Define if you want more run-time sanity checks.])
+if test x$ac_valgrind_checking != x ; then
+ AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
+[Define if you want to workaround valgrind (a memory checker) warnings about
+ possible memory leaks because of libcpp use of interior pointers.])
+fi
+
+AC_ARG_ENABLE(canonical-system-headers,
+[ --enable-canonical-system-headers
+ enable or disable system headers canonicalization],
+[],
+enable_canonical_system_headers=yes)
+if test $enable_canonical_system_headers != no; then
+ AC_DEFINE(ENABLE_CANONICAL_SYSTEM_HEADERS,
+ 1, [Define to enable system headers canonicalization.])
fi
-m4_changequote(,)
case $target in
- alpha*-*-* | \
- arm*-*-eabi* | \
- arm*-*-symbianelf* | \
- x86_64-*-* | \
- ia64-*-* | \
- hppa*64*-*-* | parisc*64*-*-* | \
- i[34567]86-*-solaris2.1[0-9]* | \
- mips*-*-* | \
- mmix-*-* | \
- powerpc*-*-* | \
- rs6000*-*-* | \
- s390*-*-* | \
- sparc64*-*-* | ultrasparc-*-freebsd* | \
- sparcv9-*-solaris2* | \
- sparc-*-solaris2.[789] | sparc-*-solaris2.1[0-9]* | \
- sh[123456789l]*-*-*)
- need_64bit_hwint=yes ;;
- *)
- need_64bit_hwint=no ;;
+ 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
-case $need_64bit_hwint:$ac_cv_sizeof_long in
- *:8 | no:*) host_wide_int=long ;;
- *) host_wide_int='long long' ;;
+# Enable --enable-host-shared.
+AC_ARG_ENABLE(host-shared,
+[AS_HELP_STRING([--enable-host-shared],
+ [build host code as shared libraries])])
+AC_SUBST(enable_host_shared)
+
+# Enable --enable-host-pie.
+AC_ARG_ENABLE(host-pie,
+[AS_HELP_STRING([--enable-host-pie],
+ [build host code as PIE])])
+AC_SUBST(enable_host_pie)
+
+if test x$enable_host_shared = xyes; then
+ PICFLAG=-fPIC
+elif test x$enable_host_pie = xyes; then
+ PICFLAG=-fPIE
+else
+ PICFLAG=
+fi
+
+AC_SUBST(PICFLAG)
+
+# Enable Intel CET on Intel CET enabled host if jit is enabled.
+GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
+case x$enable_languages in
+*jit*)
+ ;;
+*)
+ CET_HOST_FLAGS=
+ ;;
esac
-m4_changequote([,])
+AC_SUBST(CET_HOST_FLAGS)
+
+dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
+dnl # an if statement. This was the source of very frustrating bugs
+dnl # in converting to autoconf 2.5x!
+AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
+
+# It is certainly possible that there's valgrind but no valgrind.h.
+# GCC relies on making annotations so we must have both.
+AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
+AC_PREPROC_IFELSE([AC_LANG_SOURCE(
+ [[#include <valgrind/memcheck.h>
+#ifndef VALGRIND_DISCARD
+#error VALGRIND_DISCARD not defined
+#endif]])],
+ [gcc_cv_header_valgrind_memcheck_h=yes],
+ [gcc_cv_header_valgrind_memcheck_h=no])
+AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
+AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
+AC_PREPROC_IFELSE([AC_LANG_SOURCE(
+ [[#include <memcheck.h>
+#ifndef VALGRIND_DISCARD
+#error VALGRIND_DISCARD not defined
+#endif]])],
+ [gcc_cv_header_memcheck_h=yes],
+ [gcc_cv_header_memcheck_h=no])
+AC_MSG_RESULT($gcc_cv_header_memcheck_h)
+if test $gcc_cv_header_valgrind_memcheck_h = yes; then
+ AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
+ [Define if valgrind's valgrind/memcheck.h header is installed.])
+fi
+if test $gcc_cv_header_memcheck_h = yes; then
+ AC_DEFINE(HAVE_MEMCHECK_H, 1,
+ [Define if valgrind's memcheck.h header is installed.])
+fi
-AC_DEFINE_UNQUOTED(HOST_WIDE_INT, $host_wide_int,
-[Define to the widest efficient host integer type at least
- as wide as the target's size_t type.])
+AC_ARG_ENABLE(valgrind-annotations,
+[AS_HELP_STRING([--enable-valgrind-annotations],
+ [enable valgrind runtime interaction])], [],
+[enable_valgrind_annotations=no])
+if test x$enable_valgrind_annotations != xno \
+ || test x$ac_valgrind_checking != x; then
+ if (test $have_valgrind_h = no \
+ && test $gcc_cv_header_memcheck_h = no \
+ && test $gcc_cv_header_valgrind_memcheck_h = no); then
+ AC_MSG_ERROR([*** valgrind annotations requested, but])
+ AC_MSG_ERROR([*** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h])
+ fi
+ AC_DEFINE(ENABLE_VALGRIND_ANNOTATIONS, 1,
+[Define to get calls to the valgrind runtime enabled.])
+fi
# Output.
projects / thirdparty / gcc.git / blobdiff