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ab78426ae7
When top-level configure has either --enable-checking=valgrind or --enable-valgrind-annotations, we want to activate a couple of workarounds in libcpp. They do not use anything from the Valgrind API, so just delete all detection. libcpp/ChangeLog: * config.in: Regenerate. * configure: Regenerate. * configure.ac (ENABLE_VALGRIND_CHECKING): Delete. (ENABLE_VALGRIND_ANNOTATIONS): Rename to ENABLE_VALGRIND_WORKAROUNDS. Delete Valgrind header checks. * lex.cc (new_buff): Adjust for renaming. (_cpp_free_buff): Ditto.
254 lines
6.8 KiB
Plaintext
254 lines
6.8 KiB
Plaintext
# -*- Autoconf -*-
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# Process this file with autoconf to produce a configure script.
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AC_INIT(cpplib, [ ], gcc-bugs@gcc.gnu.org, cpplib)
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AC_CONFIG_SRCDIR(ucnid.h)
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AC_CONFIG_MACRO_DIR(../config)
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AC_CANONICAL_SYSTEM
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# Checks for programs.
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AC_PROG_MAKE_SET
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AC_PROG_INSTALL
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AC_PROG_CC
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AC_PROG_CXX
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AC_PROG_RANLIB
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AC_CHECK_TOOL(AR, ar)
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AC_USE_SYSTEM_EXTENSIONS
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AC_SYS_LARGEFILE
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MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
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AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal])
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AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf])
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AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
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if test -z "$ETAGS"; then
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ETAGS=etags
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fi
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AC_SUBST([ETAGS])
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# Figure out what compiler warnings we can enable.
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# See config/warnings.m4 for details.
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ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wno-narrowing -Wwrite-strings \
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-Wmissing-format-attribute], [warn])
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ACX_PROG_CC_WARNING_OPTS([-Wstrict-prototypes -Wmissing-prototypes \
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-Wold-style-definition -Wc++-compat], [c_warn])
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ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
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# Disable exceptions and RTTI if building with g++
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ACX_PROG_CC_WARNING_OPTS(
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m4_quote(m4_do([-fno-exceptions -fno-rtti])), [noexception_flags])
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# Only enable with --enable-werror-always until existing warnings are
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# corrected.
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ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
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# Dependency checking.
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ZW_CREATE_DEPDIR
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AC_LANG_PUSH([C++])
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], [],
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[AC_MSG_ERROR([C++ compiler missing or inoperational])])
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AC_LANG_POP([C++])
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ZW_PROG_COMPILER_DEPENDENCIES([CXX])
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# Checks for header files.
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AC_HEADER_TIME
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ACX_HEADER_STRING
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AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \
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stdlib.h strings.h string.h sys/file.h unistd.h)
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# Checks for typedefs, structures, and compiler characteristics.
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AC_C_BIGENDIAN
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AC_C_CONST
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AC_C_INLINE
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AC_FUNC_OBSTACK
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AC_TYPE_OFF_T
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AC_TYPE_SIZE_T
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AC_TYPE_SSIZE_T
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AC_TYPE_UINTPTR_T
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AC_CHECK_TYPE(ptrdiff_t, int)
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AC_TYPE_UINT64_T
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if test x"$ac_cv_c_uint64_t" = x"no"; then
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AC_MSG_ERROR([uint64_t not found])
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fi
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AC_STRUCT_TM
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AC_CHECK_SIZEOF(int)
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AC_CHECK_SIZEOF(long)
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define(libcpp_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
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ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
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fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
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fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
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putchar_unlocked putc_unlocked)
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AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS)
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AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, getopt, vasprintf])
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AC_CHECK_DECLS(m4_split(m4_normalize(libcpp_UNLOCKED_FUNCS)))
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# Checks for library functions.
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AC_FUNC_ALLOCA
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AC_HEADER_STDC
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AM_LANGINFO_CODESET
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ZW_GNU_GETTEXT_SISTER_DIR
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AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
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[AC_TRY_COMPILE([
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#include <sys/types.h>
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],
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[if ((uchar *)0) return 0;
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if (sizeof(uchar)) return 0;],
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ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
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if test $ac_cv_type_uchar = yes; then
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AC_DEFINE(HAVE_UCHAR, 1,
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[Define if <sys/types.h> defines \`uchar'.])
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fi
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AC_CHECK_SIZEOF(ino_t)
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AC_CHECK_SIZEOF(dev_t)
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# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which exposes a different
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# iconv() prototype.
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AC_LANG_PUSH([C++])
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AM_ICONV
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AC_LANG_POP([C++])
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# More defines and substitutions.
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PACKAGE="$PACKAGE_TARNAME"
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AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Define to the name of this package.])
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AC_SUBST(PACKAGE)
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if test "x$enable_nls" != xno; then
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USED_CATALOGS='$(CATALOGS)'
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else
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USED_CATALOGS=
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fi
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AC_SUBST(USED_CATALOGS)
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AC_ARG_ENABLE(maintainer-mode,
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[ --enable-maintainer-mode enable rules only needed by maintainers],,
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enable_maintainer_mode=no)
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if test "x$enable_maintainer_mode" = xno; then
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MAINT='#'
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else
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MAINT=
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fi
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AC_SUBST(MAINT)
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# Enable expensive internal checks
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is_release=
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if test -f $srcdir/../gcc/DEV-PHASE \
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&& test x"`cat $srcdir/../gcc/DEV-PHASE`" != xexperimental; then
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is_release=yes
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fi
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AC_ARG_ENABLE(checking,
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[AS_HELP_STRING([[--enable-checking[=LIST]]],
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[enable expensive run-time checks. With LIST,
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enable only specific categories of checks.
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Categories are: yes,no,all,none,release.
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Flags are: misc,valgrind or other strings])],
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[ac_checking_flags="${enableval}"],[
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# Determine the default checks.
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if test x$is_release = x ; then
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ac_checking_flags=yes
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else
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ac_checking_flags=release
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fi])
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IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
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for check in release $ac_checking_flags
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do
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case $check in
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# these set all the flags to specific states
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yes|all) ac_checking=1 ; ac_assert_checking=1 ; ac_valgrind_checking= ;;
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no|none) ac_checking= ; ac_assert_checking= ; ac_valgrind_checking= ;;
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release) ac_checking= ; ac_assert_checking=1 ; ac_valgrind_checking= ;;
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# these enable particular checks
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assert) ac_assert_checking=1 ;;
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misc) ac_checking=1 ;;
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valgrind) ac_valgrind_checking=1 ;;
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# accept
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*) ;;
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esac
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done
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IFS="$ac_save_IFS"
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if test x$ac_checking != x ; then
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AC_DEFINE(CHECKING_P, 1,
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[Define to 1 if you want more run-time sanity checks.])
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else
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AC_DEFINE(CHECKING_P, 0)
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fi
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if test x$ac_assert_checking != x ; then
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AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
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[Define if you want assertions enabled. This is a cheap check.])
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fi
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AC_ARG_ENABLE(canonical-system-headers,
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[ --enable-canonical-system-headers
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enable or disable system headers canonicalization],
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[],
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enable_canonical_system_headers=yes)
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if test $enable_canonical_system_headers != no; then
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AC_DEFINE(ENABLE_CANONICAL_SYSTEM_HEADERS,
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1, [Define to enable system headers canonicalization.])
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fi
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case $target in
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i?86-* | x86_64-*)
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AC_TRY_COMPILE([], [asm ("pcmpestri %0, %%xmm0, %%xmm1" : : "i"(0))],
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[AC_DEFINE([HAVE_SSE4], [1],
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[Define to 1 if you can assemble SSE4 insns.])])
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esac
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# Enable --enable-host-shared.
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AC_ARG_ENABLE(host-shared,
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[AS_HELP_STRING([--enable-host-shared],
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[build host code as shared libraries])])
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AC_SUBST(enable_host_shared)
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# Enable --enable-host-pie.
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AC_ARG_ENABLE(host-pie,
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[AS_HELP_STRING([--enable-host-pie],
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[build host code as PIE])])
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AC_SUBST(enable_host_pie)
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if test x$enable_host_shared = xyes; then
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PICFLAG=-fPIC
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elif test x$enable_host_pie = xyes; then
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PICFLAG=-fPIE
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else
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PICFLAG=
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fi
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AC_SUBST(PICFLAG)
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# Enable Intel CET on Intel CET enabled host if jit is enabled.
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GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
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case x$enable_languages in
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*jit*)
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;;
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*)
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CET_HOST_FLAGS=
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;;
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esac
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AC_SUBST(CET_HOST_FLAGS)
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AC_ARG_ENABLE(valgrind-annotations,
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[AS_HELP_STRING([--enable-valgrind-annotations],
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[enable valgrind runtime interaction])], [],
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[enable_valgrind_annotations=no])
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if test x$enable_valgrind_annotations != xno \
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|| test x$ac_valgrind_checking != x; then
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AC_DEFINE(ENABLE_VALGRIND_WORKAROUNDS, 1,
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[Define if you want to workaround Valgrind warnings about
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possible memory leaks because of libcpp use of interior pointers.])
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fi
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# Output.
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AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])
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AC_CONFIG_FILES(Makefile)
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AC_OUTPUT
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