Log when enabling/disabling unify/!cpp2 modes

diff --git a/ccache.c b/ccache.c
index 9f6bb7b1edcf4b3624e31447a9eb63a62bf83366..d7486eae62cda45361061b0b269df3ac9ade65c8 100644 (file)
--- a/ccache.c
+++ b/ccache.c
@@ -1277,7 +1277,9 @@ static void process_args(int argc, char **argv, ARGS **preprocessor_args,
                */
                if (strncmp(argv[i], "-g", 2) == 0) {
                        args_add(stripped_args, argv[i]);
-                       if (strcmp(argv[i], "-g0") != 0) {
+                       if (enable_unify && strcmp(argv[i], "-g0") != 0) {
+                               cc_log("%s used; disabling unify mode",
+                                      argv[i]);
                                enable_unify = 0;
                        }
                        if (strcmp(argv[i], "-g3") == 0) {
@@ -1285,6 +1287,8 @@ static void process_args(int argc, char **argv, ARGS **preprocessor_args,
                                 * Fix for bug 7190 ("commandline macros (-D)
                                 * have non-zero lineno when using -g3").
                                 */
+                               cc_log("%s used; not compiling preprocessed"
+                                      " code", argv[i]);
                                compile_preprocessed_source_code = 0;
                        }
                        continue;
@@ -1619,6 +1623,7 @@ static void ccache(int argc, char *argv[])
        }
 
        if (getenv("CCACHE_UNIFY")) {
+               cc_log("Unify mode disabled");
                enable_unify = 1;
        }