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waf: Implement check whether compiler supports -fvisibility=hidden

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This is a bit better than compiler == 'gcc'.
Tested with gcc 4.9 (success) and gcc 3.4.5 (not supported).
This commit is contained in:
Enrico Tröger 2015-01-18 16:44:57 +01:00 committed by Colomban Wendling
parent 3d0bdbd6da
commit 43037b379b
1 changed files with 2 additions and 3 deletions
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5
wscript
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@ -186,6 +186,7 @@ def configure(conf):
conf.load('compiler_c')
is_win32 = _target_is_win32(conf)
visibility_hidden_supported = conf.check_cc(cflags=['-Werror', '-fvisibility=hidden'], mandatory=False)
conf.check_cc(header_name='fcntl.h', mandatory=False)
conf.check_cc(header_name='fnmatch.h', mandatory=False)
conf.check_cc(header_name='glob.h', mandatory=False)
@ -310,9 +311,7 @@ but you then may not have a local copy of the HTML manual.'''
# GEANY_EXPORT_SYMBOL and GEANY_API_SYMBOL
if is_win32:
geany_symbol_flags = ['-DGEANY_EXPORT_SYMBOL=__declspec(dllexport)']
# FIXME: check for -fvisibility and the __attribute__((visibility)), or
# at least for GCC >= 4
elif conf.env['CC_NAME'] == 'gcc':
elif visibility_hidden_supported:
geany_symbol_flags = ['-fvisibility=hidden',
'-DGEANY_EXPORT_SYMBOL=__attribute__((visibility("default")))']
else: # unknown, define to nothing