Add noreturn mark to [p]error_exit(), suggested by Charlie Shepherd.

2 files changed, 7 insertions, 2 deletions

diff --git a/lib/lib.h b/lib/lib.h
index 6fce34c8..07f4a6d8 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -43,8 +43,8 @@ void strlcpy(char *dest, char *src, size_t size);
 void verror_msg(char *msg, int err, va_list va);
 void error_msg(char *msg, ...);
 void perror_msg(char *msg, ...);
-void error_exit(char *msg, ...);
-void perror_exit(char *msg, ...);
+void error_exit(char *msg, ...) noreturn;
+void perror_exit(char *msg, ...) noreturn;
 void *xmalloc(size_t size);
 void *xzalloc(size_t size);
 void *xrealloc(void *ptr, size_t size);
diff --git a/lib/portability.h b/lib/portability.h
index 6ed1dc4f..34f7994f 100644
--- a/lib/portability.h
+++ b/lib/portability.h
@@ -3,6 +3,11 @@
 #include <stdio.h>
 #define fdprintf(...) dprintf(__VA_ARGS__)
 
+#ifdef __GNUC__
+#define noreturn	__attribute__((noreturn))
+#else
+#define noreturn
+#endif
 
 #ifndef __APPLE__
 #include <byteswap.h>