md5, sha1, sha256, sha512: add gl_SET_CRYPTO_CHECK_DEFAULT

[gnulib.git] / lib / bitrotate.h

diff --git a/lib/bitrotate.h b/lib/bitrotate.h
index 9e10a45..be2e407 100644 (file)
--- a/lib/bitrotate.h
+++ b/lib/bitrotate.h
@@ -23,6 +23,9 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
 _GL_INLINE_HEADER_BEGIN
 #ifndef BITROTATE_INLINE
 # define BITROTATE_INLINE _GL_INLINE