PR target/26792

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

diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac
index 45dd410..d6ab01f 100644 (file)
--- a/libstdc++-v3/configure.ac
+++ b/libstdc++-v3/configure.ac
@@ -112,7 +112,8 @@ GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no])
 
 # No surprises, no surprises...
 GLIBCXX_ENABLE_THREADS
-if test $atomicity_dir = cpu/generic ; then
+GLIBCXX_ENABLE_ATOMIC_BUILTINS
+if test $atomicity_dir = cpu/generic/atomic_mutex ; then
   AC_MSG_WARN([No native atomic operations are provided for this platform.])
   if test $target_thread_file = single; then
     AC_MSG_WARN([They cannot be faked when thread support is disabled.])
@@ -160,9 +161,15 @@ if $GLIBCXX_IS_NATIVE; then
   # For C99 support to TR1.
   GLIBCXX_CHECK_C99_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(
@@ -279,10 +286,14 @@ else
     AC_DEFINE(HAVE_TANHL)
   fi
 
+  # Assume we have _Unwind_GetIPInfo for cross-compiles.
+  AC_DEFINE(HAVE_GETIPINFO)
+
 fi
 
 # This depends on GLIBCXX CHECK_LINKER_FEATURES, but without it assumes no.
 GLIBCXX_ENABLE_SYMVERS([yes])
+GLIBCXX_ENABLE_VISIBILITY([yes])
 
 ac_ldbl_compat=no
 case "$target" in
@@ -318,11 +329,6 @@ AC_SUBST(CPU_DEFINES_SRCDIR)
 AC_SUBST(ABI_TWEAKS_SRCDIR)
 AC_SUBST(OS_INC_SRCDIR)
 
-# Atomic builtins can be inlined in bits/atomicity.h.
-if test $atomicity_dir = cpu/generic/atomic_builtins ; then
-  AC_DEFINE([_GLIBCXX_ATOMIC_BUILTINS], 1,
-            [Define if atomic builtins are provided for this platform.])
-fi
 
 # Determine cross-compile flags and AM_CONDITIONALs.
 #AC_SUBST(GLIBCXX_IS_NATIVE)