# Checks for names injected into std:: by the c_std headers.
AC_CHECK_FUNCS([btowc wctob fgetwc fgetws fputwc fputws fwide \
- fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
- vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
- mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
+ fwprintf fwscanf swprintf swscanf vfwprintf vswprintf \
+ vwprintf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
+ mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstol \
wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr],
[],[ac_wfuncs=no])
+ # Checks for wide character functions that are not required
+ # for basic wchar_t support. Don't disable support if they are missing.
+ # Injection of these is wrapped with guard macros.
+ AC_CHECK_FUNCS([vfwscanf vswscanf vwscanf wcstof iswblank],[],[])
+
AC_MSG_CHECKING([for ISO C99 wchar_t support])
if test x"$has_weof" = xyes &&
test x"$has_wchar_minmax" = xyes &&
dnl
AC_DEFUN(GLIBCXX_CHECK_POLL, [
AC_CACHE_VAL(glibcxx_cv_POLL, [
- AC_TRY_COMPILE(
+ AC_TRY_LINK(
[#include <poll.h>],
[struct pollfd pfd[1];
pfd[0].events = POLLIN;
dnl
AC_DEFUN(GLIBCXX_CHECK_WRITEV, [
AC_CACHE_VAL(glibcxx_cv_WRITEV, [
- AC_TRY_COMPILE(
+ AC_TRY_LINK(
[#include <sys/uio.h>],
[struct iovec iov[2];
writev(0, iov, 0);],
dnl
+dnl Check whether int64_t is available in <stdint.h>, and define HAVE_INT64_T.
+dnl
+AC_DEFUN(GLIBCXX_CHECK_INT64_T, [
+ AC_CACHE_VAL(glibcxx_cv_INT64_T, [
+ AC_TRY_COMPILE(
+ [#include <stdint.h>],
+ [int64_t var;],
+ [glibcxx_cv_INT64_T=yes],
+ [glibcxx_cv_INT64_T=no])
+ ])
+ if test $glibcxx_cv_INT64_T = yes; then
+ AC_DEFINE(HAVE_INT64_T)
+ fi
+])
+
+
+dnl
+dnl Check whether LFS support is available.
+dnl
+AC_DEFUN(GLIBCXX_CHECK_LFS, [
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
+ AC_CACHE_VAL(glibcxx_cv_LFS, [
+ AC_TRY_LINK(
+ [#include <unistd.h>
+ #include <stdio.h>
+ ],
+ [FILE* fp;
+ fopen64("t", "w");
+ fseeko64(fp, 0, SEEK_CUR);
+ ftello64(fp);
+ lseek64(1, 0, SEEK_CUR);],
+ [glibcxx_cv_LFS=yes],
+ [glibcxx_cv_LFS=no])
+ ])
+ if test $glibcxx_cv_LFS = yes; then
+ AC_DEFINE(_GLIBCXX_USE_LFS)
+ fi
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AC_LANG_RESTORE
+])
+
+
+dnl
dnl Does any necessary configuration of the testsuite directory. Generates
dnl the testsuite_hooks.h header.
dnl
# Look for setenv, so that extended locale tests can be performed.
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
+
+ if test $enable_symvers = no; then
+ enable_abi_check=no
+ else
+ case "$host" in
+ *-*-cygwin*)
+ enable_abi_check=no ;;
+ *)
+ enable_abi_check=yes ;;
+ esac
+ fi
+ else
+ # Only build this as native, since automake does not understand
+ # CXX_FOR_BUILD.
+ enable_abi_check=no
fi
# Export file names for ABI checking.
baseline_dir="$glibcxx_srcdir/config/abi/${abi_baseline_pair}\$(MULTISUBDIR)"
AC_SUBST(baseline_dir)
- # Determine if checking the ABI is desirable.
- if test $enable_symvers = no || test $is_hosted = no; then
- enable_abi_check=no
- else
- case "$host" in
- *-*-cygwin*)
- enable_abi_check=no ;;
- *)
- enable_abi_check=yes ;;
- esac
- fi
-
GLIBCXX_CONDITIONAL(GLIBCXX_TEST_WCHAR_T, test $enable_wchar_t = yes)
GLIBCXX_CONDITIONAL(GLIBCXX_TEST_ABI, test $enable_abi_check = yes)
])
# For Canadian crosses, pick this up too.
if test $CANADIAN = yes; then
- GLIBCXX_INCLUDES="$GLIBCXX_INCLUDES '-I${includedir}'"
+ GLIBCXX_INCLUDES="$GLIBCXX_INCLUDES -I\${includedir}"
fi
# Stuff in the actual top level. Currently only used by libsupc++ to
OPTIMIZE_CXXFLAGS=
AC_SUBST(OPTIMIZE_CXXFLAGS)
- WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings'
+ WARN_FLAGS='-Wall -W -Wwrite-strings -Wcast-qual'
AC_SUBST(WARN_FLAGS)
])
[isunordered(0.0,0.0);],, [ac_c99_math=no])
AC_MSG_RESULT($ac_c99_math)
+ if test x"$ac_c99_math" = x"yes"; then
+ AC_DEFINE(_GLIBCXX_USE_C99_MATH)
+ fi
+
# Check for the existence in <stdio.h> of vscanf, et. al.
ac_c99_stdio=yes;
AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
fi;
AC_MSG_RESULT($enable_c99)
+ if test x"$ac_99_math" = x"yes"; then
+ AC_DEFINE(_GLIBCXX_USE_C99_MATH)
+ fi
+
# Option parsed, now set things appropriately
if test x"$enable_c99" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99)
# Default to "generic".
if test $enable_clocale_flag = auto; then
case x${target_os} in
- xlinux* | xgnu*)
+ xlinux* | xgnu* | xkfreebsd*-gnu | xknetbsd*-gnu)
AC_EGREP_CPP([_GLIBCXX_ok], [
#include <features.h>
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
;;
esac
- dnl Set directory for fpos.h
- FPOS_H=$fpos_include_dir
-
AC_SUBST(CSTDIO_H)
- AC_SUBST(FPOS_H)
AC_SUBST(BASIC_FILE_H)
AC_SUBST(BASIC_FILE_CC)
])
dnl Sets:
dnl is_hosted (yes/no)
dnl
+dnl Defines:
+dnl _GLIBCXX_HOSTED (always defined, either to 1 or 0)
+dnl
AC_DEFUN(GLIBCXX_ENABLE_HOSTED, [
AC_ARG_ENABLE([hosted-libstdcxx],
AC_HELP_STRING([--disable-hosted-libstdcxx],
if test "$enable_hosted_libstdcxx" = no; then
AC_MSG_NOTICE([Only freestanding libraries will be built])
is_hosted=no
+ hosted_define=0
enable_abi_check=no
enable_libstdcxx_pch=no
else
is_hosted=yes
+ hosted_define=1
fi
GLIBCXX_CONDITIONAL(GLIBCXX_HOSTED, test $is_hosted = yes)
-])
-
-
-dnl
-dnl Check for libunwind exception handling support. If enabled, then
-dnl we assume that the _Unwind_* functions that make up the Unwind ABI
-dnl (_Unwind_RaiseException, _Unwind_Resume, etc.) are defined by
-dnl libunwind instead of libgcc, and that libstdc++ has a dependency
-dnl on libunwind as well as libgcc.
-dnl
-dnl --enable-libunwind-exceptions forces the use of libunwind.
-dnl --disable-libunwind-exceptions assumes there is no libunwind.
-dnl
-dnl Substs:
-dnl LIBUNWIND_FLAG
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_LIBUNWIND_EXCEPTIONS, [
- AC_MSG_CHECKING([for use of libunwind])
- GLIBCXX_ENABLE(libunwind-exceptions,no,,
- [force use of libunwind for exceptions])
- AC_MSG_RESULT($use_libunwind_exceptions)
- if test $enable_libunwind_exceptions = yes; then
- LIBUNWIND_FLAG="-lunwind"
- else
- LIBUNWIND_FLAG=""
- fi
- AC_SUBST(LIBUNWIND_FLAG)
+ AC_DEFINE_UNQUOTED(_GLIBCXX_HOSTED, $hosted_define,
+ [Define to 1 if a full hosted library is built, or 0 if freestanding.])
])
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