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* Don't print out HOW we are running Flex unless in verbose mode. We already

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hide the bison command line.
* If running flex or bison gives us the files we already have, don't overwrite
  the ones we have, which cause unnecessary compilation.  I demand the ability
  to make meaningless changes without penalty!

llvm-svn: 7571
This commit is contained in:
Chris Lattner 2003-08-04 19:47:06 +00:00
parent a326e31a1c
commit 08f4aa071b
2 changed files with 22 additions and 8 deletions
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15
Makefile.common
View File

@ -766,10 +766,15 @@ YACC_OUTPUT = $(addprefix $(YACC_FILES:%.y=%), .h .cpp .output)
# FIXME. (f.e. char Buffer[10000]; )
#
%.cpp: %.l
$(FLEX) -t $< | $(SED) '/^find_rule/d' | \
@echo Flex\'ing $<...
$(VERB) $(FLEX) -t $< | $(SED) '/^find_rule/d' | \
$(SED) 's/void yyunput/inline void yyunput/' | \
$(SED) 's/void \*yy_flex_realloc/inline void *yy_flex_realloc/' | \
$(SED) 's/#define YY_BUF_SIZE 16384/#define YY_BUF_SIZE (16384*64)/' > $@
$(SED) 's/#define YY_BUF_SIZE 16384/#define YY_BUF_SIZE (16384*64)/' \
> $@.tmp
$(VERB) diff -q $@ $@.tmp || ${MV} -f $@.tmp $@
@# remove the output of flex if it didn't get moved over...
@rm -f $@.tmp
# Rule for building the bison parsers...
%.c: %.y # Cancel built-in rules for yacc
@ -777,8 +782,10 @@ YACC_OUTPUT = $(addprefix $(YACC_FILES:%.y=%), .h .cpp .output)
%.cpp %.h : %.y
@echo Bison\'ing $<...
$(VERB) $(BISON) -v -d -p $(<:%Parser.y=%) $*.y
$(VERB) ${MV} -f $*.tab.c $*.cpp
$(VERB) ${MV} -f $*.tab.h $*.h
$(VERB) diff -q $*.tab.c $*.cpp || ${MV} -f $*.tab.c $*.cpp
$(VERB) diff -q $*.tab.h $*.h || ${MV} -f $*.tab.h $*.h
@# If the files were not updated, don't leave them lying around...
@rm -f $*.tab.c $*.tab.h
# To create the directories...
%/.dir:

15
Makefile.rules
View File

@ -766,10 +766,15 @@ YACC_OUTPUT = $(addprefix $(YACC_FILES:%.y=%), .h .cpp .output)
# FIXME. (f.e. char Buffer[10000]; )
#
%.cpp: %.l
$(FLEX) -t $< | $(SED) '/^find_rule/d' | \
@echo Flex\'ing $<...
$(VERB) $(FLEX) -t $< | $(SED) '/^find_rule/d' | \
$(SED) 's/void yyunput/inline void yyunput/' | \
$(SED) 's/void \*yy_flex_realloc/inline void *yy_flex_realloc/' | \
$(SED) 's/#define YY_BUF_SIZE 16384/#define YY_BUF_SIZE (16384*64)/' > $@
$(SED) 's/#define YY_BUF_SIZE 16384/#define YY_BUF_SIZE (16384*64)/' \
> $@.tmp
$(VERB) diff -q $@ $@.tmp || ${MV} -f $@.tmp $@
@# remove the output of flex if it didn't get moved over...
@rm -f $@.tmp
# Rule for building the bison parsers...
%.c: %.y # Cancel built-in rules for yacc
@ -777,8 +782,10 @@ YACC_OUTPUT = $(addprefix $(YACC_FILES:%.y=%), .h .cpp .output)
%.cpp %.h : %.y
@echo Bison\'ing $<...
$(VERB) $(BISON) -v -d -p $(<:%Parser.y=%) $*.y
$(VERB) ${MV} -f $*.tab.c $*.cpp
$(VERB) ${MV} -f $*.tab.h $*.h
$(VERB) diff -q $*.tab.c $*.cpp || ${MV} -f $*.tab.c $*.cpp
$(VERB) diff -q $*.tab.h $*.h || ${MV} -f $*.tab.h $*.h
@# If the files were not updated, don't leave them lying around...
@rm -f $*.tab.c $*.tab.h
# To create the directories...
%/.dir: