From dcfb55cedc50f087df3863942a0471f4f56f6a35 Mon Sep 17 00:00:00 2001
From: Christophe de Dinechin <dinechin@redhat.com>
Date: Wed, 5 Apr 2017 07:42:29 +0200
Subject: [PATCH] Add special rules for MinGW

Some (all?) variants of MinGW do not have a working 'fmt'.
This is not indispensable to the rule working, it makes it just look good.

The sed -e 's/\\\\...' rule appears necessary when executing the
command within 'make'. This is definitely a bug. If I execute the
command within the Windows CMD, I need the extra \\. If I execute the
command within bash or sh, I do not.
---
 config.mingw.mk | 5 +++++
 rules.mk        | 1 +
 2 files changed, 6 insertions(+)

diff --git a/config.mingw.mk b/config.mingw.mk
index 39d3c46..3e1f14b 100644
--- a/config.mingw.mk
+++ b/config.mingw.mk
@@ -28,6 +28,11 @@ OS_NAME_mingw=windows
 
 include $(BUILD)config.gnu.mk
 
+# We need a special treatment of this on Windows
+POSTPROCESS_DEPENDENCY=                             		\
+    ( sed -e 's/.*://' -e 's/\\$$//' < $@ |         		\
+      sed -e 's/^ *//' -e 's/$$/:/' -e 's/\\\\:$$/:/' >> $@ )
+
 # Windows overrides for extensions
 EXE_EXT=        .exe
 LIB_EXT=        .lib
diff --git a/rules.mk b/rules.mk
index 4e8fd71..9bf87dc 100644
--- a/rules.mk
+++ b/rules.mk
@@ -320,6 +320,7 @@ OBJ_DEPS=$(OBJDIR_DEPS) $(MAKEFILE_DEPS) | hello prebuild
 # http://scottmcpeak.com/autodepend/autodepend.html
 POSTPROCESS_DEPENDENCY=                             \
     ( sed -e 's/.*://' -e 's/\\$$//' < $@ |         \
+      fmt -1 |                                      \
       sed -e 's/^ *//' -e 's/$$/:/' >> $@ )
 
 $(OBJDIR)/%.c$(OBJ_EXT).d:		%.c		$(OBJ_DEPS)