md5, sha1, sha256, sha512: add gl_SET_CRYPTO_CHECK_DEFAULT

[gnulib.git] / lib / argmatch.h

diff --git a/lib/argmatch.h b/lib/argmatch.h
index 2e0275c..e4c8027 100644 (file)
--- a/lib/argmatch.h
+++ b/lib/argmatch.h
@@ -26,6 +26,10 @@
 
 # include "verify.h"
 
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
 # define ARRAY_CARDINALITY(Array) (sizeof (Array) / sizeof *(Array))
 
 /* Assert there are as many real arguments as there are values
@@ -100,4 +104,8 @@ char const *argmatch_to_argument (char const *value,
   argmatch_to_argument (Value, Arglist,                                 \
                         (char const *) (Vallist), sizeof *(Vallist))
 
+#ifdef  __cplusplus
+}
+#endif
+
 #endif /* ARGMATCH_H_ */