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

"gcc -o conftest -I/opt/chefdk/embedded/include/ruby-2.3.0/x86_64-linux -I/opt/chefdk/embedded/include/ruby-2.3.0/ruby/backward -I/opt/chefdk/embedded/include/ruby-2.3.0 -I. -I/opt/chefdk/embedded/include -O2 -O3 -g -pipe -I/opt/chefdk/embedded/include   -I/opt/chefdk/embedded/include -O2 -O3 -g -pipe -fPIC conftest.c  -L. -L/opt/chefdk/embedded/lib -Wl,-R/opt/chefdk/embedded/lib -L/opt/chefdk/embedded/lib -Wl,-R/opt/chefdk/embedded/lib -L. -Wl,-rpath,/opt/chefdk/embedded/lib -fstack-protector -L/opt/chefdk/embedded/lib -rdynamic -Wl,-export-dynamic -L/opt/chefdk/embedded/lib  -Wl,-R/opt/chefdk/embedded/lib     -Wl,-R/opt/chefdk/embedded/lib -L/opt/chefdk/embedded/lib -lruby  -lpthread -lrt -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 -o conftest -I/opt/chefdk/embedded/include/ruby-2.3.0/x86_64-linux -I/opt/chefdk/embedded/include/ruby-2.3.0/ruby/backward -I/opt/chefdk/embedded/include/ruby-2.3.0 -I. -I/opt/chefdk/embedded/include -O2 -O3 -g -pipe -I/opt/chefdk/embedded/include   -I/opt/chefdk/embedded/include -O2 -O3 -g -pipe -fPIC conftest.c  -L. -L/opt/chefdk/embedded/lib -Wl,-R/opt/chefdk/embedded/lib -L/opt/chefdk/embedded/lib -Wl,-R/opt/chefdk/embedded/lib -L. -Wl,-rpath,/opt/chefdk/embedded/lib -fstack-protector -L/opt/chefdk/embedded/lib -rdynamic -Wl,-export-dynamic -L/opt/chefdk/embedded/lib  -Wl,-R/opt/chefdk/embedded/lib     -Wl,-R/opt/chefdk/embedded/lib -L/opt/chefdk/embedded/lib -lruby  -lpthread -lrt -ldl -lcrypt -lm   -lc"
conftest.c: In function ‘t’:
conftest.c:15:57: error: ‘rb_enc_raise’ undeclared (first use in this function)
 int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_enc_raise; return !p; }
                                                         ^
conftest.c:15:57: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #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_enc_raise; return !p; }
/* end */

"gcc -o conftest -I/opt/chefdk/embedded/include/ruby-2.3.0/x86_64-linux -I/opt/chefdk/embedded/include/ruby-2.3.0/ruby/backward -I/opt/chefdk/embedded/include/ruby-2.3.0 -I. -I/opt/chefdk/embedded/include -O2 -O3 -g -pipe -I/opt/chefdk/embedded/include   -I/opt/chefdk/embedded/include -O2 -O3 -g -pipe -fPIC conftest.c  -L. -L/opt/chefdk/embedded/lib -Wl,-R/opt/chefdk/embedded/lib -L/opt/chefdk/embedded/lib -Wl,-R/opt/chefdk/embedded/lib -L. -Wl,-rpath,/opt/chefdk/embedded/lib -fstack-protector -L/opt/chefdk/embedded/lib -rdynamic -Wl,-export-dynamic -L/opt/chefdk/embedded/lib  -Wl,-R/opt/chefdk/embedded/lib     -Wl,-R/opt/chefdk/embedded/lib -L/opt/chefdk/embedded/lib -lruby  -lpthread -lrt -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: extern void rb_enc_raise();
16: int t(void) { rb_enc_raise(); return 0; }
/* end */

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