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scons: improve parsing CUSTOM_LDFLAGS

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With the help of SCons.Environment.ParseFlags, split user-supplied
CUSTOM_LDFLAGS into appropriate option lists: LIBPATH, LIBS, etc.
Known non-linker options (like -Dx -I.) will be reported and ignored,
unrecognized options will be appended to LINKFLAGS.
This commit is contained in:
Mickey Rose 2019-08-18 23:01:11 +02:00
parent 08ccaf109b
commit a25f53e667
1 changed files with 18 additions and 1 deletions
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19
SConstruct
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@ -492,6 +492,7 @@ pickle_store = [# Scons internal variables
'LIBPATH',
'LIBS',
'LINKFLAGS',
'RPATH',
'CUSTOM_LDFLAGS', # user submitted
'CUSTOM_DEFINES', # user submitted
'CUSTOM_CXXFLAGS', # user submitted
@ -1424,7 +1425,23 @@ if not preconfigured:
env.Append(CXXFLAGS = env['CUSTOM_CXXFLAGS'])
env.Append(CFLAGS = env['CUSTOM_CFLAGS'])
env.Append(LINKFLAGS = DEFAULT_CXX14_LINKFLAGS)
env.Append(LINKFLAGS = env['CUSTOM_LDFLAGS'])
custom_ldflags = env.ParseFlags(env['CUSTOM_LDFLAGS'])
# ParseFlags puts everything it does not recognize into CCFLAGS,
# but let's assume the user knows better, put those in LINKFLAGS
env.Append(LINKFLAGS = custom_ldflags.pop('CCFLAGS'))
env.Append(LINKFLAGS = custom_ldflags.pop('LINKFLAGS'),
LIBS = custom_ldflags.pop('LIBS'))
env.AppendUnique(FRAMEWORKS = custom_ldflags.pop('FRAMEWORKS'),
LIBPATH = custom_ldflags.pop('LIBPATH'),
RPATH = custom_ldflags.pop('RPATH'))
invalid_ldflags = {k:v for k,v in custom_ldflags.items() if v}
if invalid_ldflags:
color_print(3, 'Warning: CUSTOM_LDFLAGS contained some flags that SCons recognized as not for linker.')
color_print(3, 'The following flags will be ignored:')
for key, value in invalid_ldflags.items():
color_print(3, '\t%s = %r' % (key, value))
### platform specific bits