Allow __FAST_MATH__ be defined if TEST_FAST_MATH is also defined.

diff --git a/config.h.in b/config.h.in
index c7e7dd3818c5e1693061c81b9cc0cd98afbf0ab9..4ab3c886713ea33da9a54be296bdf9bc098e40f2 100644 (file)
--- a/config.h.in
+++ b/config.h.in
@@ -4,7 +4,7 @@
 
 /* Another evil option when it comes to compiling the C library is
  *    --ffast-math since it alters the ABI.  */
-#ifdef __FAST_MATH__
+#if defined __FAST_MATH__ && !defined TEST_FAST_MATH
 # error "glibc must not be compiled with -ffast-math"
 #endif