l2md: enable -Wextra and fix compilability

Enable -Wextra and add __noreturn to fix compilability.

Signed-off-by: Nicolas Schier <nicolas@fjasle.eu>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

2 files changed, 7 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index a7c9002..1757f46 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,5 @@
 CFLAGS  = -O2 -Wall -Werror
+CFLAGS += -Wextra -Wno-unused-parameter -Wno-missing-field-initializers
 LDFLAGS = -lgit2
 PREFIX ?= /usr/bin
 
diff --git a/l2md.h b/l2md.h
index 0d99a58..1eabacc 100644
--- a/l2md.h
+++ b/l2md.h
@@ -29,6 +29,10 @@
 	__attribute__ ((format (printf, (pos_fmtstr), (pos_fmtargs))))
 #endif
 
+#ifndef __noreturn
+# define __noreturn __attribute__ ((noreturn))
+#endif
+
 #define REPOS                   "repos"
 #define OIDS                    "oids"
 
@@ -145,8 +149,8 @@ size_t strlcpy(char *dest, const char *src, size_t size);
 int slprintf(char *dst, size_t size, const char *fmt, ...);
 
 void verbose(const char *format, ...) __check_format_printf(1, 2);
-void panic(const char *format, ...) __check_format_printf(1, 2);
+void panic(const char *format, ...) __check_format_printf(1, 2) __noreturn;
 void warn(const char *format, ...) __check_format_printf(1, 2);
-void die(void);
+void die(void) __noreturn;
 
 #endif /* L2MD_H */