def check_func(conf, func, libs=None):
if libs is None:
libs = []
# Handle MSVC intrinsics: force MS compiler to make a function
# call. Useful to test for some functions when built with
# optimization on, to avoid build error because the intrinsic and
# our 'fake' test declaration do not match.
code = r"""
char %(func)s (void);
#ifdef _MSC_VER
#pragma function(%(func)s)
#endif
int main (void)
{
return %(func)s();
}
""" % {"func": func}
old_lib = copy.deepcopy(conf.env["LIBS"])
try:
for lib in libs[::-1]:
conf.env["LIBS"].insert(0, lib)
ret = create_link_conf_taskgen(conf, "check_func", code,
None, "Checking for function %s" % func)
finally:
conf.env["LIBS"] = old_lib
conf.conf_results.append({"type": "func", "value": func,
"result": ret})
return ret
def check_compiler(conf):
code = """\
int main(void)
{
return 0;
}
"""
ret = create_link_conf_taskgen(conf, "check_cc", code,
None, "Checking whether C compiler works")
return ret
def check_lib(conf, lib):
code = r"""
int main()
{
return 0;
}
"""
old_lib = copy.deepcopy(conf.env["LIBS"])
try:
conf.env["LIBS"].insert(0, lib)
ret = create_link_conf_taskgen(conf, "check_lib", code,
None, "Checking for library %s" % lib)
finally:
conf.env["LIBS"] = old_lib
conf.conf_results.append({"type": "lib", "value": lib,
"result": ret})
return ret
