cpp: Constify cpp argv passed to cpp_exec

Pass argv as char *const argv[] as execvp expects it.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 2 insertions, 2 deletions

diff --git a/trafgen_parser.y b/trafgen_parser.y
index 24370ee..79a8439 100644
--- a/trafgen_parser.y
+++ b/trafgen_parser.y
@@ -590,8 +590,8 @@ void cleanup_packets(void)
 	free(packet_dyn);
 }
 
-void compile_packets(char *file, bool verbose, unsigned int cpu, bool invoke_cpp,
-		     char **cpp_argv)
+void compile_packets(char *file, bool verbose, unsigned int cpu,
+		     bool invoke_cpp, char *const cpp_argv[])
 {
 	char tmp_file[128];
 	int ret = -1;