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waf: Allow to only generate lex and yacc.

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In some applications, it's usefull if the files generated by lex or yacc
are not build automatically. With that it is for example possible to
create a wrapper source file that sets some defines before the generated
code is parsed.
This commit is contained in:
Christian Mauderer 2018-05-07 10:19:28 +02:00
parent 879eaa7c1a
commit 01855a5acd
2 changed files with 22 additions and 16 deletions
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12
builder.py
View File

@ -547,15 +547,17 @@ class RouteKeywordsFragmentComposer(BuildSystemFragmentComposer):
class LexFragmentComposer(BuildSystemFragmentComposer): class LexFragmentComposer(BuildSystemFragmentComposer):
def __init__(self, sym, dep, cflags = None, includes = None): def __init__(self, sym, dep, cflags = None, includes = None, build = True):
self.sym = sym self.sym = sym
self.dep = dep self.dep = dep
self.cflags, self.includes = _cflagsIncludes(cflags, includes) self.cflags, self.includes = _cflagsIncludes(cflags, includes)
self.build = build
def compose(self, path): def compose(self, path):
d = { 'file': path, d = { 'file': path,
'sym': self.sym, 'sym': self.sym,
'dep': self.dep } 'dep': self.dep,
'build': self.build }
if None not in self.cflags: if None not in self.cflags:
d['cflags'] = self.cflags d['cflags'] = self.cflags
if None not in self.includes: if None not in self.includes:
@ -564,15 +566,17 @@ class LexFragmentComposer(BuildSystemFragmentComposer):
class YaccFragmentComposer(BuildSystemFragmentComposer): class YaccFragmentComposer(BuildSystemFragmentComposer):
def __init__(self, sym, header, cflags = None, includes = None): def __init__(self, sym, header, cflags = None, includes = None, build = True):
self.sym = sym self.sym = sym
self.header = header self.header = header
self.cflags, self.includes = _cflagsIncludes(cflags, includes) self.cflags, self.includes = _cflagsIncludes(cflags, includes)
self.build = build
def compose(self, path): def compose(self, path):
d = { 'file': path, d = { 'file': path,
'sym': self.sym, 'sym': self.sym,
'header': self.header } 'header': self.header,
'build': self.build }
if None not in self.cflags: if None not in self.cflags:
d['cflags'] = self.cflags d['cflags'] = self.cflags
if None not in self.includes: if None not in self.includes:

26
waf_libbsd.py
View File

@ -361,12 +361,13 @@ class Builder(builder.ModuleManager):
bld(target = lex['file'][:-2]+ '.c', bld(target = lex['file'][:-2]+ '.c',
source = lex['file'], source = lex['file'],
rule = lex_rule) rule = lex_rule)
bld.objects(target = 'lex_%s' % (lex['sym']), if lex['build']:
features = 'c', bld.objects(target = 'lex_%s' % (lex['sym']),
cflags = cflags, features = 'c',
includes = lexIncludes + includes, cflags = cflags,
defines = defines + lexDefines, includes = lexIncludes + includes,
source = lex['file'][:-2] + '.c') defines = defines + lexDefines,
source = lex['file'][:-2] + '.c')
libbsd_use += ['lex_%s' % (lex['sym'])] libbsd_use += ['lex_%s' % (lex['sym'])]
# #
@ -398,12 +399,13 @@ class Builder(builder.ModuleManager):
bld(target = yaccFile[:-2] + '.c', bld(target = yaccFile[:-2] + '.c',
source = yaccFile, source = yaccFile,
rule = yacc_rule) rule = yacc_rule)
bld.objects(target = 'yacc_%s' % (yaccSym), if yacc['build']:
features = 'c', bld.objects(target = 'yacc_%s' % (yaccSym),
cflags = cflags, features = 'c',
includes = yaccIncludes + includes, cflags = cflags,
defines = defines + yaccDefines, includes = yaccIncludes + includes,
source = yaccFile[:-2] + '.c') defines = defines + yaccDefines,
source = yaccFile[:-2] + '.c')
libbsd_use += ['yacc_%s' % (yaccSym)] libbsd_use += ['yacc_%s' % (yaccSym)]
# #