X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fmath.in.h;h=6cc0f7dd4575e4119ee6a8ff51a1fd62c845ef93;hb=a8a1dc286152661e640f0839e3ccd79e0898db6d;hp=7189819b044567811b1e9f5fd634a42d0fc5bc05;hpb=9fc81090f6c5590bd1b0e0fa5087577a2ee43a3e;p=gnulib.git

diff --git a/lib/math.in.h b/lib/math.in.h
index 7189819b0..6cc0f7dd4 100644
--- a/lib/math.in.h
+++ b/lib/math.in.h
@@ -28,6 +28,9 @@
 #ifndef _@GUARD_PREFIX@_MATH_H
 #define _@GUARD_PREFIX@_MATH_H
 
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
 _GL_INLINE_HEADER_BEGIN
 #ifndef _GL_MATH_INLINE
 # define _GL_MATH_INLINE _GL_INLINE