From 4d591275802ae08377d90c5881a93803350e42d6 Mon Sep 17 00:00:00 2001
From: Andrew Chambers <ac@acha.ninja>
Date: Fri, 1 Mar 2019 21:36:49 +1300
Subject: Add -M and -MM to support our own makefile.

---
 driver.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/driver.c b/driver.c
index 2b1336d..df50b0f 100644
--- a/driver.c
+++ b/driver.c
@@ -408,6 +408,14 @@ main(int argc, char *argv[])
 				input->lib = true;
 				input->phase = LINK;
 				break;
+			case 'M':
+				if (strcmp(arg, "-M") == 0 || strcmp(arg, "-MM") == 0) {
+					arrayaddptr(&phases[PREPROCESS].cmd, arg);
+					last = PREPROCESS;
+				} else {
+					usage(NULL);
+				}
+				break;
 			case 'O':
 				/* ignore */
 				break;
-- 
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