From 4d79702a4c9c657b1c49855d8bf42a083c393bc3 Mon Sep 17 00:00:00 2001 From: John Criswell Date: Tue, 5 Aug 2003 21:21:58 +0000 Subject: [PATCH] Switched from using diff to cmp for two reasons: o Not all versions of diff have the -q option o The cmp program is probably faster than diff Fixed the logic that only copies the file over if no differences are found. llvm-svn: 7615 --- llvm/Makefile.common | 6 +++--- llvm/Makefile.rules | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/llvm/Makefile.common b/llvm/Makefile.common index c3ed84149272..0eb4b885fc44 100644 --- a/llvm/Makefile.common +++ b/llvm/Makefile.common @@ -773,7 +773,7 @@ YACC_OUTPUT = $(addprefix $(YACC_FILES:%.y=%), .h .cpp .output) $(SED) 's/void \*yy_flex_realloc/inline void *yy_flex_realloc/' | \ $(SED) 's/#define YY_BUF_SIZE 16384/#define YY_BUF_SIZE (16384*64)/' \ > $@.tmp - $(VERB) diff -q $@ $@.tmp > /dev/null || ${MV} -f $@.tmp $@ + $(VERB) cmp $@ $@.tmp > /dev/null && ${MV} -f $@.tmp $@ @# remove the output of flex if it didn't get moved over... @rm -f $@.tmp @@ -783,8 +783,8 @@ YACC_OUTPUT = $(addprefix $(YACC_FILES:%.y=%), .h .cpp .output) %.cpp %.h : %.y @echo Bison\'ing $<... $(VERB) $(BISON) -v -d -p $(<:%Parser.y=%) $*.y - $(VERB) diff -q $*.tab.c $*.cpp > /dev/null || ${MV} -f $*.tab.c $*.cpp - $(VERB) diff -q $*.tab.h $*.h > /dev/null || ${MV} -f $*.tab.h $*.h + $(VERB) cmp $*.tab.c $*.cpp > /dev/null && ${MV} -f $*.tab.c $*.cpp + $(VERB) cmp $*.tab.h $*.h > /dev/null && ${MV} -f $*.tab.h $*.h @# If the files were not updated, don't leave them lying around... @rm -f $*.tab.c $*.tab.h diff --git a/llvm/Makefile.rules b/llvm/Makefile.rules index c3ed84149272..0eb4b885fc44 100644 --- a/llvm/Makefile.rules +++ b/llvm/Makefile.rules @@ -773,7 +773,7 @@ YACC_OUTPUT = $(addprefix $(YACC_FILES:%.y=%), .h .cpp .output) $(SED) 's/void \*yy_flex_realloc/inline void *yy_flex_realloc/' | \ $(SED) 's/#define YY_BUF_SIZE 16384/#define YY_BUF_SIZE (16384*64)/' \ > $@.tmp - $(VERB) diff -q $@ $@.tmp > /dev/null || ${MV} -f $@.tmp $@ + $(VERB) cmp $@ $@.tmp > /dev/null && ${MV} -f $@.tmp $@ @# remove the output of flex if it didn't get moved over... @rm -f $@.tmp @@ -783,8 +783,8 @@ YACC_OUTPUT = $(addprefix $(YACC_FILES:%.y=%), .h .cpp .output) %.cpp %.h : %.y @echo Bison\'ing $<... $(VERB) $(BISON) -v -d -p $(<:%Parser.y=%) $*.y - $(VERB) diff -q $*.tab.c $*.cpp > /dev/null || ${MV} -f $*.tab.c $*.cpp - $(VERB) diff -q $*.tab.h $*.h > /dev/null || ${MV} -f $*.tab.h $*.h + $(VERB) cmp $*.tab.c $*.cpp > /dev/null && ${MV} -f $*.tab.c $*.cpp + $(VERB) cmp $*.tab.h $*.h > /dev/null && ${MV} -f $*.tab.h $*.h @# If the files were not updated, don't leave them lying around... @rm -f $*.tab.c $*.tab.h