mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-19 16:21:17 +00:00
c164b88ac1
Different builds of Flex on different platforms output different strings in --version. For example: macOS: flex 2.5.35 Apple(flex-31) Windows: win_flex.exe 2.6.4 C:\Program Files (x86)\GnuWin32\bin\flex.EXE version 2.5.4 We need to look for a string that looks like a version, which means a regex till https://github.com/mesonbuild/meson/issues/1609 is fixed. Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/issues/356
70 lines
2 KiB
Meson
70 lines
2 KiB
Meson
cc = meson.get_compiler('c')
|
|
|
|
# Find flex, configure lex generator
|
|
flex_cdata = configuration_data()
|
|
|
|
flex_min_version='2.5.31'
|
|
flex = find_program('flex', 'win_flex')
|
|
|
|
get_flex_version = find_program('get_flex_version.py')
|
|
flexversion_res = run_command([get_flex_version, flex], check: true)
|
|
flexversion = flexversion_res.stdout().strip()
|
|
if flexversion.version_compare('<' + flex_min_version)
|
|
error('flex version @0@ >= @1@: NO'.format(flexversion, flex_min_version))
|
|
else
|
|
message('flex version @0@ >= @1@: YES'.format(flexversion, flex_min_version))
|
|
endif
|
|
|
|
flex_cdata.set('FLEX', flex.path())
|
|
if cc.get_id() == 'msvc'
|
|
flex_cdata.set('FLEX_ARGS', '--nounistd')
|
|
else
|
|
flex_cdata.set('FLEX_ARGS', '')
|
|
endif
|
|
|
|
gen_lex = configure_file(input : 'gen_lex.py.in',
|
|
output : 'gen_lex.py',
|
|
configuration : flex_cdata)
|
|
|
|
# Find bison, configure grammar generator
|
|
bison_cdata = configuration_data()
|
|
|
|
bison_min_version='2.4'
|
|
bison = find_program('bison', 'win_bison')
|
|
|
|
bversion_res = run_command([bison, '--version'])
|
|
if bversion_res.returncode() != 0
|
|
error('Could not get bison version (@0@)'.format(bversion_res.stderr()))
|
|
endif
|
|
|
|
bversion = bversion_res.stdout().split('\n')[0].split(' ')[-1].strip()
|
|
if bversion.version_compare('<' + bison_min_version)
|
|
error('bison version @0@ >= @1@: NO'.format(bversion, bison_min_version))
|
|
else
|
|
message('bison version @0@ >= @1@: YES'.format(bversion, bison_min_version))
|
|
endif
|
|
|
|
|
|
|
|
bison_cdata.set('BISON', bison.path())
|
|
bison_cdata.set('BISON_ARGS', '')
|
|
|
|
gen_grammar = configure_file(input : 'gen_grammar.py.in',
|
|
output : 'gen_grammar.py',
|
|
configuration : bison_cdata)
|
|
|
|
# Custom targets
|
|
parser = custom_target('parselex',
|
|
input : 'parse.l',
|
|
output : ['lex.priv_gst_parse_yy.c', 'parse_lex.h'],
|
|
command : [python3, gen_lex, '@OUTPUT0@', '@OUTPUT1@', '@INPUT@', 'DUMMY']
|
|
)
|
|
|
|
grammar = custom_target('parsegrammar',
|
|
input : 'grammar.y',
|
|
output : ['grammar.tab.c', 'grammar.tab.h'],
|
|
command : [python3, gen_grammar, '@OUTPUT0@', '@OUTPUT1@', '@INPUT@'],
|
|
depends : [parser],
|
|
)
|
|
|
|
gst_parse_sources += [parser, grammar]
|