diff options
Diffstat (limited to 'lib/mkmf.rb')
-rw-r--r-- | lib/mkmf.rb | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/lib/mkmf.rb b/lib/mkmf.rb index c0ede35474..e396fb267f 100644 --- a/lib/mkmf.rb +++ b/lib/mkmf.rb @@ -717,16 +717,16 @@ int main() {printf("%"PRI_CONFTEST_PREFIX"#{neg ? 'd' : 'u'}\\n", conftest_const decltype && try_link(<<"SRC", opt, &b) or #{headers} /*top*/ -#{MAIN_DOES_NOTHING} extern int t(void); int t(void) { #{decltype["volatile p"]}; p = (#{decltype[]})#{func}; return 0; } +#{MAIN_DOES_NOTHING "t"} SRC call && try_link(<<"SRC", opt, &b) #{headers} /*top*/ -#{MAIN_DOES_NOTHING} extern int t(void); int t(void) { #{call}; return 0; } +#{MAIN_DOES_NOTHING "t"} SRC end @@ -736,9 +736,9 @@ SRC try_compile(<<"SRC", opt, &b) #{headers} /*top*/ -#{MAIN_DOES_NOTHING} extern int t(void); int t(void) { const volatile void *volatile p; p = &(&#{var})[0]; return 0; } +#{MAIN_DOES_NOTHING "t"} SRC end @@ -1120,8 +1120,8 @@ SRC if try_compile(<<"SRC", opt, &b) #{cpp_include(headers)} /*top*/ -#{MAIN_DOES_NOTHING} int s = (char *)&((#{type}*)0)->#{member} - (char *)0; +#{MAIN_DOES_NOTHING "s"} SRC $defs.push(format("-DHAVE_%s_%s", type.tr_cpp, member.tr_cpp)) $defs.push(format("-DHAVE_ST_%s", member.tr_cpp)) # backward compatibility @@ -1374,9 +1374,9 @@ SRC #{cpp_include(headers)} /*top*/ volatile #{type} conftestval; -#{MAIN_DOES_NOTHING} extern int t(void); int t(void) {return (int)(1-*(conftestval#{member ? ".#{member}" : ""}));} +#{MAIN_DOES_NOTHING "t"} SRC end @@ -1387,9 +1387,9 @@ SRC #{cpp_include(headers)} /*top*/ volatile #{type} conftestval; -#{MAIN_DOES_NOTHING} extern int t(void); int t(void) {return (int)(1-(conftestval#{member ? ".#{member}" : ""}));} +#{MAIN_DOES_NOTHING "t"} SRC end @@ -2388,6 +2388,19 @@ MESSAGE end end + def MAIN_DOES_NOTHING(*refs) + src = MAIN_DOES_NOTHING + unless refs.empty? + src = src.sub(/\{/) do + $& + + "\n if (argc > 1000000) {\n" + + refs.map {|n|" printf(\"%p\", &#{n});\n"}.join("") + + " }\n" + end + end + src + end + extend self init_mkmf @@ -2495,7 +2508,7 @@ MESSAGE ## # A C main function which does no work - MAIN_DOES_NOTHING = config_string('MAIN_DOES_NOTHING') || 'int main(void) {return 0;}' + MAIN_DOES_NOTHING = config_string('MAIN_DOES_NOTHING') || "int main(int argc, char **argv)\n{\n return 0;\n}" UNIVERSAL_INTS = config_string('UNIVERSAL_INTS') {|s| Shellwords.shellwords(s)} || %w[int short long long\ long] |