gcc/

[pf3gnuchains/gcc-fork.git] / libstdc++-v3 / configure.ac

diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac
index 66b6b8d..a07d9ff 100644 (file)
--- a/libstdc++-v3/configure.ac
+++ b/libstdc++-v3/configure.ac
@@ -97,14 +97,13 @@ GLIBCXX_ENABLE_HOSTED
 # Enable compiler support that doesn't require linking.
 GLIBCXX_ENABLE_SJLJ_EXCEPTIONS
 GLIBCXX_ENABLE_PCH($is_hosted)
-GLIBCXX_ENABLE_ATOMIC_BUILTINS
 GLIBCXX_ENABLE_THREADS
+GLIBCXX_ENABLE_ATOMIC_BUILTINS
 
-# 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
@@ -119,7 +118,7 @@ GLIBCXX_ENABLE_PARALLEL([yes])
 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.
@@ -143,6 +142,18 @@ 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, nanosleep and sched_yield support.
+# NB: The default is [no], because otherwise it requires linking.
+GLIBCXX_ENABLE_LIBSTDCXX_TIME([no])
+
+# For gthread support
+GLIBCXX_CHECK_GTHREADS
+
+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 \
@@ -158,27 +169,14 @@ if $GLIBCXX_IS_NATIVE; then
 
   GLIBCXX_CHECK_LINKER_FEATURES
   GLIBCXX_CHECK_MATH_SUPPORT
-  GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
-  GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
   GLIBCXX_CHECK_STDLIB_SUPPORT
 
-  # For dev/random and dev/urandom for TR1.
+  # For /dev/random and /dev/urandom for TR1.
   GLIBCXX_CHECK_RANDOM_TR1
 
-  # For clock_gettime support.
-  GLIBCXX_CHECK_CLOCK_GETTIME
-
-  # For gettimeofday support.
-  GLIBCXX_CHECK_GETTIMEOFDAY
-
   # For TLS support.
   GCC_CHECK_TLS
 
-  # For _Unwind_GetIPInfo.
-  GCC_CHECK_UNWIND_GETIPINFO
-
-  AC_LC_MESSAGES
-
   # For iconv support.
   AM_ICONV
 
@@ -210,7 +208,6 @@ else
   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
@@ -227,8 +224,6 @@ else
     AC_DEFINE(HAVE_ATAN2F)
     AC_DEFINE(HAVE_ATANF)
     AC_DEFINE(HAVE_CEILF)
-    AC_DEFINE(HAVE_COPYSIGN)
-    AC_DEFINE(HAVE_COPYSIGNF)
     AC_DEFINE(HAVE_COSF)
     AC_DEFINE(HAVE_COSHF)
     AC_DEFINE(HAVE_EXPF)
@@ -247,9 +242,6 @@ else
     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
@@ -264,7 +256,6 @@ else
     AC_DEFINE(HAVE_ATAN2L)
     AC_DEFINE(HAVE_ATANL)
     AC_DEFINE(HAVE_CEILL)
-    AC_DEFINE(HAVE_COPYSIGNL)
     AC_DEFINE(HAVE_COSL)
     AC_DEFINE(HAVE_COSHL)
     AC_DEFINE(HAVE_EXPL)
@@ -284,11 +275,12 @@ else
     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)
@@ -340,8 +332,6 @@ AC_SUBST(ERROR_CONSTANTS_SRCDIR)
 # Determine cross-compile flags and AM_CONDITIONALs.
 #AC_SUBST(GLIBCXX_IS_NATIVE)
 #AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes)
-# from GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT:
-#AM_CONDITIONAL(GLIBCXX_BUILD_LIBMATH,  test $need_libmath = yes)
 GLIBCXX_EVALUATE_CONDITIONALS
  
 AC_CACHE_SAVE