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windows: unconditionally use flex / bison binaries

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This to simplify the checks made when for example a flex binary
is available system wide: the build process was failing when
that system wide binary didn't have the required version. Instead
of adding more checks and making things more complex, let's just
always use our binary subproject.
This commit is contained in:
Mathieu Duponchelle 2019-01-24 17:11:59 +01:00
parent 8c04a523ee
commit 2ffe372bdd
2 changed files with 11 additions and 23 deletions
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5
meson.build
View file

@ -55,10 +55,7 @@ os.symlink(os.path.join('@1@', 'subprojects', '@0@'),
os.path.join('@1@', '@0@'))
'''
# On Windows, if flex/bison aren't found, we use a subproject to get them
flex = find_program('flex', 'win_flex', required : build_system != 'windows')
bison = find_program('bison', 'win_bison', required : build_system != 'windows')
if not flex.found() or not bison.found()
if build_system == 'windows'
subproject('win-flex-bison-binaries')
endif

29
subprojects/win-flex-bison-binaries/meson.build
View file

@ -1,25 +1,16 @@
project('win-flex-bison-binary', version : '2.5.14')
provide_flex = not find_program('flex', required : false).found()
provide_bison = not find_program('bison', required : false).found()
py3 = import('python3').find_python()
if provide_flex or provide_bison
py3 = import('python3').find_python()
message('Downloading and extracting win-flex-bison binaries...')
message('Downloading and extracting win-flex-bison binaries...')
zip_hash = '354c9aae02aca421c52abfda7fe3ce6c32ad07e25ff3f66e31da9437a0b906cf'
zip_hash = '354c9aae02aca421c52abfda7fe3ce6c32ad07e25ff3f66e31da9437a0b906cf'
ret = run_command(py3, files('download-binary.py'), meson.project_version(), zip_hash)
if ret.returncode() != 0
message(ret.stdout())
error(ret.stderr())
endif
if provide_flex
meson.override_find_program('flex', find_program('win_flex'))
endif
if provide_bison
meson.override_find_program('bison', find_program('win_bison'))
endif
ret = run_command(py3, files('download-binary.py'), meson.project_version(), zip_hash)
if ret.returncode() != 0
message(ret.stdout())
error(ret.stderr())
endif
meson.override_find_program('flex', find_program('win_flex'))
meson.override_find_program('bison', find_program('win_bison'))