find_header: checking for yaml.h... -------------------- no

"gcc -o conftest -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC conftest.c  -L. -L/usr/lib/x86_64-linux-gnu -L. -Wl,-z,relro -Wl,-z,now -fstack-protector -rdynamic -Wl,-export-dynamic     -lruby-2.5  -lpthread -lgmp -ldl -lcrypt -lm   -lc"
/usr/lib/ruby/2.5.0/mkmf.rb:395: warning: Insecure world writable dir /go/bin in PATH, mode 040777
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return 0;
6: }
/* end */

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
conftest.c:3:10: fatal error: yaml.h: No such file or directory
 #include <yaml.h>
          ^~~~~~~~
compilation terminated.
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <yaml.h>
/* end */

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

have_macro: checking for _WIN32... -------------------- no

"gcc -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC   -c conftest.c"
conftest.c:5:3: error: #error 
 # error
   ^~~~~
conftest.c:6:1: error: expected identifier or ‘(’ before ‘|’ token
 |:/ === _WIN32 undefined === /:|
 ^
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: /*top*/
4: #ifndef _WIN32
5: # error
6: |:/ === _WIN32 undefined === /:|
7: #endif
/* end */

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

have_header: checking for dlfcn.h... -------------------- yes

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <dlfcn.h>
/* end */

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

have_header: checking for inttypes.h... -------------------- yes

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <inttypes.h>
/* end */

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

have_header: checking for memory.h... -------------------- yes

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <memory.h>
/* end */

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

have_header: checking for stdint.h... -------------------- yes

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <stdint.h>
/* end */

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

have_header: checking for stdlib.h... -------------------- yes

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <stdlib.h>
/* end */

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

have_header: checking for strings.h... -------------------- yes

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <strings.h>
/* end */

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

have_header: checking for string.h... -------------------- yes

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <string.h>
/* end */

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

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

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <sys/stat.h>
/* end */

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

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

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <sys/types.h>
/* end */

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

have_header: checking for unistd.h... -------------------- yes

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <unistd.h>
/* end */

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

find_header: checking for yaml.h... -------------------- yes

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <yaml.h>
/* end */

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

have_header: checking for config.h... -------------------- yes

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -I./yaml -Wdate-time -D_FORTIFY_SOURCE=2   -g -O2 -fdebug-prefix-map=/build/ruby2.5-ADJMZV/ruby2.5-2.5.5=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <config.h>
/* end */

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