Improve error message for “ccache -o=K=V”

Previously:

    ccache: error: unknown configuration option ""

Now:

    ccache: error: unknown configuration option "=K"

Related to #529.

diff --git a/src/ccache.cpp b/src/ccache.cpp
index f9ac1828427f62102dc9459d586b9e60dd1df556..7a1f22712c1a9424de6c0f72ed87ce44b187f3eb 100644 (file)
--- a/src/ccache.cpp
+++ b/src/ccache.cpp
@@ -3973,7 +3973,7 @@ ccache_main_options(int argc, char* argv[])
 
     case 'o': { // --set-config
       initialize();
-      char* p = strchr(optarg, '=');
+      char* p = strchr(optarg + 1, '='); // Improve error message for -o=K=V
       if (!p) {
         fatal("missing equal sign in \"%s\"", optarg);
       }