have_macro: checking for CLOCK_MONOTONIC in time.h... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic     -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return 0;
6: }
/* end */

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <time.h>
4: /*top*/
5: #ifndef CLOCK_MONOTONIC
6: # error
7: |:/ === CLOCK_MONOTONIC undefined === /:|
8: #endif
/* end */

--------------------

have_type: checking for clockid_t in time.h... -------------------- yes

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <time.h>
4: 
5: /*top*/
6: typedef clockid_t conftest_type;
7: int conftestval[sizeof(conftest_type)?1:-1];
/* end */

--------------------

have_library: checking for clock_gettime() in -lrt... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic     -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <time.h>
 4: 
 5: /*top*/
 6: extern int t(void);
 7: int main(int argc, char **argv)
 8: {
 9:   if (argc > 1000000) {
10:     printf("%p", &t);
11:   }
12: 
13:   return 0;
14: }
15: int t(void) { void ((*volatile p)()); p = (void ((*)()))clock_gettime; return !p; }
/* end */

--------------------

have_library: checking for t_open() in -lnsl... -------------------- no

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lnsl -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
conftest.c: In function ‘t’:
conftest.c:13:57: error: ‘t_open’ undeclared (first use in this function)
 int t(void) { void ((*volatile p)()); p = (void ((*)()))t_open; return !p; }
                                                         ^
conftest.c:13:57: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))t_open; return !p; }
/* end */

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lnsl -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
/tmp/ccnwZchr.o: In function `t':
/home/piousbox/projects/microsites/ish_lib_manager/test/dummy/vendor/bundle/ruby/2.3.0/gems/kgio-2.10.0/ext/kgio/conftest.c:14: undefined reference to `t_open'
collect2: error: ld returned 1 exit status
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: extern void t_open();
14: int t(void) { t_open(); return 0; }
/* end */

--------------------

have_library: checking for socket() in -lsocket... -------------------- no

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lsocket -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
conftest.c: In function ‘t’:
conftest.c:13:57: error: ‘socket’ undeclared (first use in this function)
 int t(void) { void ((*volatile p)()); p = (void ((*)()))socket; return !p; }
                                                         ^
conftest.c:13:57: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))socket; return !p; }
/* end */

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lsocket -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
/usr/bin/ld: cannot find -lsocket
collect2: error: ld returned 1 exit status
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: extern void socket();
14: int t(void) { socket(); return 0; }
/* end */

--------------------

have_func: checking for poll() in poll.h... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <poll.h>
 4: 
 5: /*top*/
 6: extern int t(void);
 7: int main(int argc, char **argv)
 8: {
 9:   if (argc > 1000000) {
10:     printf("%p", &t);
11:   }
12: 
13:   return 0;
14: }
15: int t(void) { void ((*volatile p)()); p = (void ((*)()))poll; return !p; }
/* end */

--------------------

have_func: checking for getaddrinfo() in sys/types.h,sys/socket.h,netdb.h... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <sys/types.h>
 4: #include <sys/socket.h>
 5: #include <netdb.h>
 6: 
 7: /*top*/
 8: extern int t(void);
 9: int main(int argc, char **argv)
10: {
11:   if (argc > 1000000) {
12:     printf("%p", &t);
13:   }
14: 
15:   return 0;
16: }
17: int t(void) { void ((*volatile p)()); p = (void ((*)()))getaddrinfo; return !p; }
/* end */

--------------------

have_func: checking for getnameinfo() in sys/types.h,sys/socket.h,netdb.h... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <sys/types.h>
 4: #include <sys/socket.h>
 5: #include <netdb.h>
 6: 
 7: /*top*/
 8: extern int t(void);
 9: int main(int argc, char **argv)
10: {
11:   if (argc > 1000000) {
12:     printf("%p", &t);
13:   }
14: 
15:   return 0;
16: }
17: int t(void) { void ((*volatile p)()); p = (void ((*)()))getnameinfo; return !p; }
/* end */

--------------------

have_type: checking for struct sockaddr_storage in sys/types.h,sys/socket.h... -------------------- yes

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <sys/types.h>
4: #include <sys/socket.h>
5: 
6: /*top*/
7: typedef struct sockaddr_storage conftest_type;
8: int conftestval[sizeof(conftest_type)?1:-1];
/* end */

--------------------

have_func: checking for accept4() in sys/socket.h... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <sys/socket.h>
 4: 
 5: /*top*/
 6: extern int t(void);
 7: int main(int argc, char **argv)
 8: {
 9:   if (argc > 1000000) {
10:     printf("%p", &t);
11:   }
12: 
13:   return 0;
14: }
15: int t(void) { void ((*volatile p)()); p = (void ((*)()))accept4; return !p; }
/* end */

--------------------

have_header: checking for sys/select.h... -------------------- yes

"gcc -E -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <sys/select.h>
/* end */

--------------------

have_func: checking for writev() in sys/uio.h... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <sys/uio.h>
 4: 
 5: /*top*/
 6: extern int t(void);
 7: int main(int argc, char **argv)
 8: {
 9:   if (argc > 1000000) {
10:     printf("%p", &t);
11:   }
12: 
13:   return 0;
14: }
15: int t(void) { void ((*volatile p)()); p = (void ((*)()))writev; return !p; }
/* end */

--------------------

have_header: checking for ruby/io.h... -------------------- yes

"gcc -E -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <ruby/io.h>
/* end */

--------------------

have_struct_member: checking for rb_io_t.fd in ruby.h,ruby/io.h... -------------------- yes

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <ruby.h>
 4: #include <ruby/io.h>
 5: 
 6: /*top*/
 7: int s = (char *)&((rb_io_t*)0)->fd - (char *)0;
 8: int main(int argc, char **argv)
 9: {
10:   return 0;
11: }
/* end */

--------------------

have_struct_member: checking for rb_io_t.mode in ruby.h,ruby/io.h... -------------------- yes

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <ruby.h>
 4: #include <ruby/io.h>
 5: 
 6: /*top*/
 7: int s = (char *)&((rb_io_t*)0)->mode - (char *)0;
 8: int main(int argc, char **argv)
 9: {
10:   return 0;
11: }
/* end */

--------------------

have_struct_member: checking for rb_io_t.pathv in ruby.h,ruby/io.h... -------------------- yes

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <ruby.h>
 4: #include <ruby/io.h>
 5: 
 6: /*top*/
 7: int s = (char *)&((rb_io_t*)0)->pathv - (char *)0;
 8: int main(int argc, char **argv)
 9: {
10:   return 0;
11: }
/* end */

--------------------

have_type: checking for struct RFile in ruby.h,ruby/io.h... -------------------- yes

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <ruby.h>
4: #include <ruby/io.h>
5: 
6: /*top*/
7: typedef struct RFile conftest_type;
8: int conftestval[sizeof(conftest_type)?1:-1];
/* end */

--------------------

check_sizeof: checking size of struct RFile in ruby.h,ruby/io.h... -------------------- 24

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
conftest.c:9:5: error: size of array ‘conftest_const’ is negative
 int conftest_const[(sizeof((*rbcv_ptr_)) < 0) ? 1 : -1];
     ^
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <ruby.h>
4: #include <ruby/io.h>
5: typedef struct RFile rbcv_typedef_;
6: rbcv_typedef_ *rbcv_ptr_;
7: 
8: /*top*/
9: int conftest_const[(sizeof((*rbcv_ptr_)) < 0) ? 1 : -1];
/* end */

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <ruby.h>
 4: #include <ruby/io.h>
 5: typedef struct RFile rbcv_typedef_;
 6: rbcv_typedef_ *rbcv_ptr_;
 7: 
 8: #include <stdio.h>
 9: /*top*/
10: typedef unsigned
11: #ifdef PRI_LL_PREFIX
12: #define PRI_CONFTEST_PREFIX PRI_LL_PREFIX
13: LONG_LONG
14: #else
15: #define PRI_CONFTEST_PREFIX "l"
16: long
17: #endif
18: conftest_type;
19: conftest_type conftest_const = (conftest_type)(sizeof((*rbcv_ptr_)));
20: int main() {printf("%"PRI_CONFTEST_PREFIX"u\n", conftest_const); return 0;}
/* end */

./conftest |
--------------------

have_type: checking for struct RObject... -------------------- yes

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: /*top*/
4: typedef struct RObject conftest_type;
5: int conftestval[sizeof(conftest_type)?1:-1];
/* end */

--------------------

check_sizeof: checking size of struct RObject... -------------------- 40

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
conftest.c:7:5: error: size of array ‘conftest_const’ is negative
 int conftest_const[(sizeof((*rbcv_ptr_)) < 0) ? 1 : -1];
     ^
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: typedef struct RObject rbcv_typedef_;
4: rbcv_typedef_ *rbcv_ptr_;
5: 
6: /*top*/
7: int conftest_const[(sizeof((*rbcv_ptr_)) < 0) ? 1 : -1];
/* end */

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: typedef struct RObject rbcv_typedef_;
 4: rbcv_typedef_ *rbcv_ptr_;
 5: 
 6: #include <stdio.h>
 7: /*top*/
 8: typedef unsigned
 9: #ifdef PRI_LL_PREFIX
10: #define PRI_CONFTEST_PREFIX PRI_LL_PREFIX
11: LONG_LONG
12: #else
13: #define PRI_CONFTEST_PREFIX "l"
14: long
15: #endif
16: conftest_type;
17: conftest_type conftest_const = (conftest_type)(sizeof((*rbcv_ptr_)));
18: int main() {printf("%"PRI_CONFTEST_PREFIX"u\n", conftest_const); return 0;}
/* end */

./conftest |
--------------------

check_sizeof: checking size of int... -------------------- 4

"gcc -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat   -c conftest.c"
conftest.c:7:5: error: size of array ‘conftest_const’ is negative
 int conftest_const[(sizeof((*rbcv_ptr_)) < 0) ? 1 : -1];
     ^
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: typedef int rbcv_typedef_;
4: rbcv_typedef_ *rbcv_ptr_;
5: 
6: /*top*/
7: int conftest_const[(sizeof((*rbcv_ptr_)) < 0) ? 1 : -1];
/* end */

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: typedef int rbcv_typedef_;
 4: rbcv_typedef_ *rbcv_ptr_;
 5: 
 6: #include <stdio.h>
 7: /*top*/
 8: typedef unsigned
 9: #ifdef PRI_LL_PREFIX
10: #define PRI_CONFTEST_PREFIX PRI_LL_PREFIX
11: LONG_LONG
12: #else
13: #define PRI_CONFTEST_PREFIX "l"
14: long
15: #endif
16: conftest_type;
17: conftest_type conftest_const = (conftest_type)(sizeof((*rbcv_ptr_)));
18: int main() {printf("%"PRI_CONFTEST_PREFIX"u\n", conftest_const); return 0;}
/* end */

./conftest |
--------------------

have_func: checking for rb_io_ascii8bit_binmode()... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_io_ascii8bit_binmode; return !p; }
/* end */

--------------------

have_func: checking for rb_update_max_fd()... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_update_max_fd; return !p; }
/* end */

--------------------

have_func: checking for rb_fd_fix_cloexec()... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_fd_fix_cloexec; return !p; }
/* end */

--------------------

have_func: checking for rb_cloexec_open()... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_cloexec_open; return !p; }
/* end */

--------------------

have_header: checking for ruby/thread.h... -------------------- yes

"gcc -E -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <ruby/thread.h>
/* end */

--------------------

have_func: checking for rb_thread_call_without_gvl() in ruby/thread.h... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <ruby/thread.h>
 4: 
 5: /*top*/
 6: extern int t(void);
 7: int main(int argc, char **argv)
 8: {
 9:   if (argc > 1000000) {
10:     printf("%p", &t);
11:   }
12: 
13:   return 0;
14: }
15: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_thread_call_without_gvl; return !p; }
/* end */

--------------------

have_func: checking for rb_thread_blocking_region()... -------------------- no

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
conftest.c: In function ‘t’:
conftest.c:13:57: error: ‘rb_thread_blocking_region’ undeclared (first use in this function)
 int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_thread_blocking_region; return !p; }
                                                         ^
conftest.c:13:57: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_thread_blocking_region; return !p; }
/* end */

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
/tmp/cc5FRTjm.o: In function `t':
/home/piousbox/projects/microsites/ish_lib_manager/test/dummy/vendor/bundle/ruby/2.3.0/gems/kgio-2.10.0/ext/kgio/conftest.c:14: undefined reference to `rb_thread_blocking_region'
collect2: error: ld returned 1 exit status
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: extern void rb_thread_blocking_region();
14: int t(void) { rb_thread_blocking_region(); return 0; }
/* end */

--------------------

have_func: checking for rb_thread_io_blocking_region()... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
conftest.c: In function ‘t’:
conftest.c:13:57: error: ‘rb_thread_io_blocking_region’ undeclared (first use in this function)
 int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_thread_io_blocking_region; return !p; }
                                                         ^
conftest.c:13:57: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_thread_io_blocking_region; return !p; }
/* end */

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: extern void rb_thread_io_blocking_region();
14: int t(void) { rb_thread_io_blocking_region(); return 0; }
/* end */

--------------------

have_func: checking for rb_str_set_len()... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_str_set_len; return !p; }
/* end */

--------------------

have_func: checking for rb_hash_clear() in ruby.h... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <ruby.h>
 4: 
 5: /*top*/
 6: extern int t(void);
 7: int main(int argc, char **argv)
 8: {
 9:   if (argc > 1000000) {
10:     printf("%p", &t);
11:   }
12: 
13:   return 0;
14: }
15: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_hash_clear; return !p; }
/* end */

--------------------

have_func: checking for rb_time_interval()... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_time_interval; return !p; }
/* end */

--------------------

have_func: checking for rb_wait_for_single_fd()... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
conftest.c: In function ‘t’:
conftest.c:13:57: error: ‘rb_wait_for_single_fd’ undeclared (first use in this function)
 int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_wait_for_single_fd; return !p; }
                                                         ^
conftest.c:13:57: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_wait_for_single_fd; return !p; }
/* end */

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: extern void rb_wait_for_single_fd();
14: int t(void) { rb_wait_for_single_fd(); return 0; }
/* end */

--------------------

have_func: checking for rb_str_subseq()... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_str_subseq; return !p; }
/* end */

--------------------

have_func: checking for rb_ary_subseq()... -------------------- yes

"gcc -o conftest -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/x86_64-linux -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0/ruby/backward -I/home/piousbox/.rbenv/versions/2.3.1/include/ruby-2.3.0 -I. -I/home/piousbox/.rbenv/versions/2.3.1/include    -D_GNU_SOURCE -DPOSIX_C_SOURCE=1-D_POSIX_C_SOURCE=200112L  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat conftest.c  -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L. -L/home/piousbox/.rbenv/versions/2.3.1/lib  -fstack-protector -rdynamic -Wl,-export-dynamic    -lrt  -Wl,-R/home/piousbox/.rbenv/versions/2.3.1/lib -L/home/piousbox/.rbenv/versions/2.3.1/lib -lruby-static -lrt  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_ary_subseq; return !p; }
/* end */

--------------------