Add -Wl, option

main.c

@@ -208,7 +208,7 @@ static void parse_args(int argc, char **argv) {
       continue;
     }
 
-    if (!strncmp(argv[i], "-l", 2)) {
+    if (!strncmp(argv[i], "-l", 2) || !strncmp(argv[i], "-Wl,", 4)) {
       strarray_push(&input_paths, argv[i]);
       continue;
     }
@@ -714,6 +714,16 @@ int main(int argc, char **argv) {
       continue;
     }
 
+    if (!strncmp(input, "-Wl,", 4)) {
+      char *s = strdup(input + 4);
+      char *arg = strtok(s, ",");
+      while (arg) {
+        strarray_push(&ld_args, arg);
+        arg = strtok(NULL, ",");
+      }
+      continue;
+    }
+
     char *output;
     if (opt_o)
       output = opt_o;

test/driver.sh

@@ -295,4 +295,11 @@ echo 'int foo(); int bar=3; int main() { foo(); }' > $tmp/bar.c
 $chibicc -o $tmp/foo $tmp/bar.c -L$tmp -lfoobar
 check -L
 
+# -Wl,
+echo 'int foo() {}' | $chibicc -c -o $tmp/foo.o -xc -
+echo 'int foo() {}' | $chibicc -c -o $tmp/bar.o -xc -
+echo 'int main() {}' | $chibicc -c -o $tmp/baz.o -xc -
+cc -Wl,-z,muldefs,--gc-sections -o $tmp/foo $tmp/foo.o $tmp/bar.o $tmp/baz.o
+check -Wl,
+
 echo OK