diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/mkmf.rb | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/lib/mkmf.rb b/lib/mkmf.rb index a0779237f8..aa545de3f8 100644 --- a/lib/mkmf.rb +++ b/lib/mkmf.rb @@ -643,13 +643,15 @@ def try_func(func, libs, headers = nil, opt = "", &b) #{headers} /*top*/ #{MAIN_DOES_NOTHING} -int t() { #{decltype["volatile p"]}; p = (#{decltype[]})#{func}; return 0; } +extern int t(void); +int t(void) { #{decltype["volatile p"]}; p = (#{decltype[]})#{func}; return 0; } SRC call && try_link(<<"SRC", opt, &b) #{headers} /*top*/ #{MAIN_DOES_NOTHING} -int t() { #{call}; return 0; } +extern int t(void); +int t(void) { #{func}(); return 0; } SRC end @@ -660,7 +662,8 @@ def try_var(var, headers = nil, opt = "", &b) #{headers} /*top*/ #{MAIN_DOES_NOTHING} -int t() { const volatile void *volatile p; p = &(&#{var})[0]; return 0; } +extern int t(void); +int t(void) { const volatile void *volatile p; p = &(&#{var})[0]; return 0; } SRC end @@ -1276,7 +1279,8 @@ def scalar_ptr_type?(type, member = nil, headers = nil, &b) /*top*/ volatile #{type} conftestval; #{MAIN_DOES_NOTHING} -int t() {return (int)(1-*(conftestval#{member ? ".#{member}" : ""}));} +extern int t(void); +int t(void) {return (int)(1-*(conftestval#{member ? ".#{member}" : ""}));} SRC end @@ -1288,7 +1292,8 @@ def scalar_type?(type, member = nil, headers = nil, &b) /*top*/ volatile #{type} conftestval; #{MAIN_DOES_NOTHING} -int t() {return (int)(1-(conftestval#{member ? ".#{member}" : ""}));} +extern int t(void); +int t(void) {return (int)(1-(conftestval#{member ? ".#{member}" : ""}));} SRC end @@ -2308,7 +2313,7 @@ LINK_SO = config_string('LINK_SO') || LIBPATHFLAG = config_string('LIBPATHFLAG') || ' -L"%s"' RPATHFLAG = config_string('RPATHFLAG') || '' LIBARG = config_string('LIBARG') || '-l%s' -MAIN_DOES_NOTHING = config_string('MAIN_DOES_NOTHING') || 'int main() {return 0;}' +MAIN_DOES_NOTHING = config_string('MAIN_DOES_NOTHING') || 'int main(void) {return 0;}' UNIVERSAL_INTS = config_string('UNIVERSAL_INTS') {|s| Shellwords.shellwords(s)} || %w[int short long long\ long] |