GLIBCXX_ENABLE_ATOMIC_BUILTINS
GLIBCXX_ENABLE_THREADS
-# Checks for compiler support that don't require linking.
+# Checks for compiler support that doesn't require linking.
GLIBCXX_CHECK_COMPILER_FEATURES
GLIBCXX_CHECK_STANDARD_LAYOUT
-# Enable all the variable C++ runtime options that doesn't require linking.
+# Enable all the variable C++ runtime options that don't require linking.
GLIBCXX_ENABLE_CSTDIO
GLIBCXX_ENABLE_CLOCALE
GLIBCXX_ENABLE_ALLOCATOR
GLIBCXX_ENABLE_CXX_FLAGS
GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no])
-# Checks for operating systems support that don't require linking.
+# Checks for operating systems support that doesn't require linking.
GLIBCXX_CHECK_SYSTEM_ERROR
+# For the streamoff typedef.
+GLIBCXX_CHECK_INT64_T
+
+# For LFS support.
+GLIBCXX_CHECK_LFS
+
+# For showmanyc_helper().
+AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h)
+GLIBCXX_CHECK_POLL
+GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
+
+# For xsputn_2().
+AC_CHECK_HEADERS(sys/uio.h)
+GLIBCXX_CHECK_WRITEV
+
+# For C99 support to TR1.
+GLIBCXX_CHECK_C99_TR1
+
+# For common values of EOF, SEEK_CUR, SEEK_END.
+GLIBCXX_CHECK_STDIO_MACROS
+
+# For gettimeofday support.
+GLIBCXX_CHECK_GETTIMEOFDAY
+
+# For clock_gettime support.
+# NB: The default is [no], because otherwise it requires linking.
+GLIBCXX_ENABLE_CLOCK_GETTIME([no])
+
+# For gthread support
+GLIBCXX_CHECK_GTHREADS
+
+# For nanosleep support
+GLIBCXX_CHECK_NANOSLEEP
+
+AC_LC_MESSAGES
+
+# Check for available headers.
+AC_CHECK_HEADERS([endian.h float.h fp.h ieeefp.h inttypes.h locale.h \
+machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \
+strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \
+sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \
+wchar.h wctype.h])
# Only do link tests if native. Else, hardcode.
if $GLIBCXX_IS_NATIVE; then
# We can do more elaborate tests that assume a working linker.
CANADIAN=no
- # Check for available headers.
- AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h machine/endian.h \
- machine/param.h sys/machine.h fp.h locale.h float.h inttypes.h gconv.h \
- sys/types.h sys/ipc.h sys/sem.h])
-
GLIBCXX_CHECK_LINKER_FEATURES
GLIBCXX_CHECK_MATH_SUPPORT
- GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
GLIBCXX_CHECK_STDLIB_SUPPORT
- # For showmanyc_helper().
- AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h)
- GLIBCXX_CHECK_POLL
- GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
-
- # For xsputn_2().
- AC_CHECK_HEADERS(sys/uio.h)
- GLIBCXX_CHECK_WRITEV
-
- # For the __streamoff_base_type typedef.
- GLIBCXX_CHECK_INT64_T
-
- # For LFS support.
- GLIBCXX_CHECK_LFS
-
- # For C99 support to TR1.
- GLIBCXX_CHECK_C99_TR1
-
- # For dev/random and dev/urandom for TR1.
+ # For /dev/random and /dev/urandom for TR1.
GLIBCXX_CHECK_RANDOM_TR1
# For TLS support.
GCC_CHECK_TLS
- # For _Unwind_GetIPInfo.
- GCC_CHECK_UNWIND_GETIPINFO
-
- AC_LC_MESSAGES
-
- AC_TRY_COMPILE(
- [#include <setjmp.h>],
- [sigjmp_buf env;
- while (! sigsetjmp (env, 1))
- siglongjmp (env, 1);
- ],
- [AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available.])])
-
- AC_FUNC_MMAP
-
# For iconv support.
AM_ICONV
fi
# Construct crosses by hand, eliminating bits that need ld...
- # GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
# GLIBCXX_CHECK_MATH_SUPPORT
# First, test for "known" system libraries. We may be using newlib even
# GLIBCXX_CHECK_STDLIB_SUPPORT
AC_DEFINE(HAVE_STRTOF)
- # AC_FUNC_MMAP
- AC_DEFINE(HAVE_MMAP)
AC_DEFINE(HAVE_ACOSF)
AC_DEFINE(HAVE_ASINF)
AC_DEFINE(HAVE_TANF)
AC_DEFINE(HAVE_TANHF)
- AC_DEFINE(HAVE_S_ISREG)
- AC_DEFINE(HAVE_S_IFREG)
-
AC_DEFINE(HAVE_ICONV)
else
GLIBCXX_CROSSCONFIG
AC_DEFINE(HAVE_TANL)
AC_DEFINE(HAVE_TANHL)
fi
-
- # Assume we have _Unwind_GetIPInfo for cross-compiles.
- AC_DEFINE(HAVE_GETIPINFO)
fi
+# Check for _Unwind_GetIPInfo.
+GCC_CHECK_UNWIND_GETIPINFO
+
+
GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])])
GCC_HEADER_STDINT(include/gstdint.h)