* acinclude.m4 (GLIBCPP_CHECK_PCH): Only set glibcpp_PCHFLAGS if

[pf3gnuchains/gcc-fork.git] / libstdc++-v3 / acinclude.m4

diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index ed9eda0..b96f517 100644 (file)
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -1464,6 +1464,12 @@ AC_DEFUN(GLIBCPP_CHECK_PCH, [
 
   CXXFLAGS="$ac_save_CXXFLAGS"
   AM_CONDITIONAL(GLIBCPP_BUILD_PCH, test "$glibcpp_pch_comp" = yes)
+  if test "$glibcpp_pch_comp" = yes; then
+       glibcpp_PCHFLAGS="-include bits/stdc++.h"
+  else
+       glibcpp_PCHFLAGS=""
+  fi
+  AC_SUBST(glibcpp_PCHFLAGS)
 ])
 
 dnl