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https://gitlab.gnome.org/GNOME/glib.git
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2f29ee1735
Don't use it project-wide for building everything. Otherwise symbols for shared modules won't be exposed, e.g. in the resourceplugin used by the gio resource unit test.
98 lines
3.4 KiB
Meson
98 lines
3.4 KiB
Meson
gmoduleconf_conf = configuration_data()
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g_module_need_uscore = 0
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g_module_broken_rtld_global = 0
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g_module_have_dlerror = 0
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libdl_dep = [ ]
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g_module_lib_args = [ ]
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g_module_impl = ''
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dlopen_dlsym_test_code = '''
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#include <dlfcn.h>
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int glib_underscore_test (void) { return 42; }
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int main (int argc, char ** argv) {
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void *f1 = (void*)0, *f2 = (void*)0, *handle;
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handle = dlopen ((void*)0, 0);
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if (handle) {
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f1 = dlsym (handle, "glib_underscore_test");
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f2 = dlsym (handle, "_glib_underscore_test");
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}
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return (!f2 || f1);
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}'''
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# On Windows force native WIN32 shared lib loader
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if host_system == 'windows'
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g_module_impl = 'G_MODULE_IMPL_WIN32'
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# Force native AIX library loader
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# dlopen() filepath must be of the form /path/libname.a(libname.so)
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elif host_system == 'aix'
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g_module_impl = 'G_MODULE_IMPL_AR'
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elif cc.links(dlopen_dlsym_test_code, name : 'dlopen() and dlsym() in system libraries')
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g_module_impl = 'G_MODULE_IMPL_DL'
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# NSLinkModule (dyld) in system libraries (Darwin)
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elif cc.has_function('NSLinkModule')
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g_module_impl = 'G_MODULE_IMPL_DYLD'
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g_module_need_uscore = 1
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elif cc.links(dlopen_dlsym_test_code, args : '-ldl', name : 'dlopen() and dlsym() in libdl')
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g_module_impl = 'G_MODULE_IMPL_DL'
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libdl_dep = cc.find_library('dl')
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g_module_lib_args = '-ldl'
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endif
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# additional checks for G_MODULE_IMPL_DL
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if g_module_impl == 'G_MODULE_IMPL_DL'
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# FIXME: check for OSF1/5.0 RTLD_GLOBAL brokenness (is this still relevant?)
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# Check whether we need preceding underscores
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if cc.get_id() == 'msvc'
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message('Building for MSVC: assuming that symbols are prefixed with underscore')
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g_module_need_uscore = 1
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elif meson.has_exe_wrapper()
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# FIXME: communicate result via stdout instead of return value, so non-0 return is not printed in bold red
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rres = cc.run(dlopen_dlsym_test_code,
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args : g_module_lib_args,
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name : 'dlsym() preceding underscores')
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if host_system == 'windows' or rres.returncode() == 0
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g_module_need_uscore = 1
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endif
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else
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message('Cross-compiling: assuming that symbols aren\'t prefixed with underscore')
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g_module_need_uscore = 0
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endif
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if cc.has_function('dlerror', args : g_module_lib_args)
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g_module_have_dlerror = 1
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endif
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endif
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# Done, have we got an implementation?
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if g_module_impl == ''
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g_module_impl = '0'
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message('WARNING: No suitable GModule implementation found!')
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endif
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gmoduleconf_conf.set('G_MODULE_IMPL', g_module_impl)
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gmoduleconf_conf.set('G_MODULE_SUPPORTED', g_module_impl != '0')
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gmoduleconf_conf.set('G_MODULE_HAVE_DLERROR', g_module_have_dlerror)
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gmoduleconf_conf.set('G_MODULE_NEED_USCORE', g_module_need_uscore)
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gmoduleconf_conf.set('G_MODULE_BROKEN_RTLD_GLOBAL', g_module_broken_rtld_global)
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gmoduleconf_h = configure_file(input : 'gmoduleconf.h.in',
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output : 'gmoduleconf.h',
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configuration : gmoduleconf_conf)
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install_headers(['gmodule.h'], subdir : 'glib-2.0')
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libgmodule = shared_library('gmodule-2.0',
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sources : ['gmodule.c'],
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version : library_version,
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soversion : soversion,
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install : true,
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include_directories : [configinc, gmoduleinc],
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dependencies : [libdl_dep, libglib_dep],
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c_args : ['-DG_LOG_DOMAIN="GModule"', '-DG_DISABLE_DEPRECATED'] + glib_hidden_visibility_args)
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libgmodule_dep = declare_dependency(link_with : libgmodule,
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include_directories : gmoduleinc)
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