disable fortran, ojbc and objcp to reduce 35% build time of gcc

[platform/upstream/gcc48.git] / libstdc++-v3 / linkage.m4

diff --git a/libstdc++-v3/linkage.m4 b/libstdc++-v3/linkage.m4
index b24f455..45a09cd 100644 (file)
--- a/libstdc++-v3/linkage.m4
+++ b/libstdc++-v3/linkage.m4
@@ -239,6 +239,35 @@ dnl 2) has "C" linkage
 dnl
 dnl argument 1 is name of function to check
 dnl
+dnl ASSUMES argument is a stdlib function with ONE parameter
+dnl
+dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_1
+AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_1], [
+  AC_MSG_CHECKING([for $1 declaration])
+  if test x${glibcxx_cv_func_$1_use+set} != xset; then
+    AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
+      AC_LANG_SAVE
+      AC_LANG_CPLUSPLUS
+      AC_TRY_COMPILE([#include <stdlib.h>],
+                     [ $1(0);],
+                     [glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
+      AC_LANG_RESTORE
+    ])
+  fi
+  AC_MSG_RESULT($glibcxx_cv_func_$1_use)
+  if test x$glibcxx_cv_func_$1_use = x"yes"; then
+    AC_CHECK_FUNCS($1)
+  fi
+])
+
+
+dnl
+dnl Check to see if the (stdlib function) argument passed is
+dnl 1) declared when using the c++ compiler
+dnl 2) has "C" linkage
+dnl
+dnl argument 1 is name of function to check
+dnl
 dnl ASSUMES argument is a stdlib function with TWO parameters
 dnl
 dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2
@@ -306,6 +335,8 @@ AC_DEFUN([GLIBCXX_CHECK_STDLIB_SUPPORT], [
   ac_save_CXXFLAGS="$CXXFLAGS"
   CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
 
+  GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_1(at_quick_exit)
+  GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_1(quick_exit)
   GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
   GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtof)