From: Pavel Labath <pavel@labath.sk>
Date: Wed, 15 Jul 2020 14:50:34 +0000 (+0200)
Subject: [lldb/test] Simplify Makefile rules for .d files
X-Git-Tag: llvmorg-13-init~17420
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9decf0405fe1bd79325ca47dba15d8914608e242;p=platform%2Fupstream%2Fllvm.git

[lldb/test] Simplify Makefile rules for .d files

The sed line in the rules was adding the .d file as a target to the
dependency rules -- to ensure the file gets rebuild when the sources
change. The same thing can be achieved more elegantly with some -M
flags.
---

diff --git a/lldb/packages/Python/lldbsuite/test/make/Makefile.rules b/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
index b9a6937..43352b6 100644
--- a/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
+++ b/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
@@ -727,28 +727,16 @@ endif
 # and the -MM option will list all non-system dependencies.
 #----------------------------------------------------------------------
 %.d: %.c
-	@rm -f $@
-	@$(CC) -M $(CFLAGS) $< > $@.tmp && \
-	sed $(QUOTE)s,\($*\)\.o[ :]*,\1.o $@ : ,g$(QUOTE) < $@.tmp > $@
-	@rm -f $@.tmp
+	$(CC) -M $(CFLAGS) $< -MF $@ -MT $@ -MT $*.o
 
 %.d: %.cpp
-	@rm -f $@
-	@$(CXX) -M $(CXXFLAGS) $< > $@.tmp && \
-	sed $(QUOTE)s,\($*\)\.o[ :]*,\1.o $@ : ,g$(QUOTE) < $@.tmp > $@
-	@rm -f $@.tmp
+	@$(CXX) -M $(CXXFLAGS) $< -MF $@ -MT $@ -MT $*.o
 
 %.d: %.m
-	@rm -f $@
-	@$(CC) -M $(CFLAGS) $< > $@.tmp && \
-	sed $(QUOTE)s,\($*\)\.o[ :]*,\1.o $@ : ,g$(QUOTE) < $@.tmp > $@
-	@rm -f $@.tmp
+	@$(CC) -M $(CFLAGS) $< -MF $@ -MT $@ -MT $*.o
 
 %.d: %.mm
-	@rm -f $@
-	@$(CXX) -M $(CXXFLAGS) $< > $@.tmp && \
-	sed $(QUOTE)s,\($*\)\.o[ :]*,\1.o $@ : ,g$(QUOTE) < $@.tmp > $@
-	@rm -f $@.tmp
+	@$(CXX) -M $(CXXFLAGS) $< -MF $@ -MT $@ -MT $*.o
 
 #----------------------------------------------------------------------
 # Include all of the makefiles for each source file so we don't have