Avoid letting “-gdwarf*” force “run_second_cpp = true”

Fixes #394.

diff --git a/src/ccache.c b/src/ccache.c
index aa7ca96f8d4309200c1c88c1ab4a92a6826da601..0e264d7a435f4dc592c7b3d7ee0b67375491ba14 100644 (file)
--- a/src/ccache.c
+++ b/src/ccache.c
@@ -2732,6 +2732,13 @@ cc_process_args(struct args *args, struct args **preprocessor_args,
                if (str_startswith(argv[i], "-g")) {
                        args_add(stripped_args, argv[i]);
 
+                       if (str_startswith(argv[i], "-gdwarf")) {
+                               // Selection of DWARF format (-gdwarf or -gdwarf-<version>) enables
+                               // debug info on level 2.
+                               generating_debuginfo = true;
+                               continue;
+                       }
+
                        char last_char = argv[i][strlen(argv[i]) - 1];
                        if (last_char == '0') {
                                // "-g0", "-ggdb0" or similar: All debug information disabled.