find_executable: checking for curl-config… ——————– yes

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have_func: checking for rb_thread_blocking_region()… ——————– yes

“gcc -o conftest -I/usr/include/x86_64-linux -I/usr/include/ruby/backward -I/usr/include -I. -O2 -g -pipe -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector –param=ssp-buffer-size=4 -fPIC -fPIC -pedantic -Wall conftest.c -L. -L/usr/lib64 -L. -Wl,–as-needed -Wl,–no-undefined -Wl,-z,relro -Wl,-O1 -Wl,–build-id -Wl,–enable-new-dtags -fstack-protector -rdynamic -Wl,-export-dynamic -lruby -lpthread -lrt -ldl -lcrypt -lm -lc -lcurl” checked program was:

begin

1: include “ruby.h” 2: 3: int main(int argc, char **argv) 4: { 5: return 0; 6: }

end

“gcc -o conftest -I/usr/include/x86_64-linux -I/usr/include/ruby/backward -I/usr/include -I. -O2 -g -pipe -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector –param=ssp-buffer-size=4 -fPIC -fPIC -pedantic -Wall conftest.c -L. -L/usr/lib64 -L. -Wl,–as-needed -Wl,–no-undefined -Wl,-z,relro -Wl,-O1 -Wl,–build-id -Wl,–enable-new-dtags -fstack-protector -rdynamic -Wl,-export-dynamic -lruby -lpthread -lrt -ldl -lcrypt -lm -lc -lcurl” conftest.c: In function 't': conftest.c:5:1: warning: 'rb_thread_blocking_region' is deprecated (declared at /usr/include/ruby/intern.h:839) [-Wdeprecated-declarations]

int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_thread_blocking_region; return 0; }
^

conftest.c:5:32: warning: variable 'p' set but not used [-Wunused-but-set-variable]

int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_thread_blocking_region; return 0; }
                               ^

conftest.c: In function 'main': conftest.c:9:5: warning: format '%p' expects argument of type 'void *', but argument 2 has type 'int (*)(void)' [-Wformat=]

printf("%p", &t);
^

checked program was: /* begin */

1: #include "ruby.h"
2: 
3: /*top*/
4: extern int t(void);
5: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_thread_blocking_region; return 0; }
6: int main(int argc, char **argv)
7: {
8:   if (argc > 1000000) {
9:     printf("%p", &t);

10: } 11: 12: return 0; 13: } /* end */

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