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-rw-r--r--ruby.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/ruby.c b/ruby.c
index a06d88c..23e44cf 100644
--- a/ruby.c
+++ b/ruby.c
@@ -776,14 +776,15 @@ feature_option(const char *str, int len, void *arg, const unsigned int enable)
if (matched == 1) goto found;
if (matched > 1) {
VALUE mesg = rb_sprintf("ambiguous feature: `%.*s' (", len, str);
-#define ADD_FEATURE(bit) \
+#define ADD_FEATURE_NAME(bit) \
if (FEATURE_BIT(bit) & set) { \
rb_str_cat_cstr(mesg, #bit); \
if (--matched) rb_str_cat_cstr(mesg, ", "); \
}
- EACH_FEATURES(ADD_FEATURE);
+ EACH_FEATURES(ADD_FEATURE_NAME);
rb_str_cat_cstr(mesg, ")");
rb_exc_raise(rb_exc_new_str(rb_eRuntimeError, mesg));
+#undef ADD_FEATURE_NAME
}
#endif
rb_warn("unknown argument for --%s: `%.*s'",