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

"gcc -o conftest -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable conftest.c  -L. -L/opt/hostedtoolcache/Ruby/2.7.2/x64/lib -Wl,-rpath,/opt/hostedtoolcache/Ruby/2.7.2/x64/lib -L. -fstack-protector-strong -rdynamic -Wl,-export-dynamic     -Wl,-rpath,/opt/hostedtoolcache/Ruby/2.7.2/x64/lib -L/opt/hostedtoolcache/Ruby/2.7.2/x64/lib -lruby-static -lz -lpthread -lrt -lrt -lgmp -ldl -lcrypt -lm   -lm   -lc"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return !!argv[argc];
6: }
/* end */

"gcc -E -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable   -c conftest.c"
conftest.c:5:3: error: #error 
 # error
   ^~~~~
conftest.c:6:1: error: expected identifier or ‘(’ before ‘|’ token
 |:/ === _WIN32 undefined === /:|
 ^
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-cast-function-type’
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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  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/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/x86_64-linux -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0/ruby/backward -I/opt/hostedtoolcache/Ruby/2.7.2/x64/include/ruby-2.7.0 -I. -I./yaml -DENABLE_PATH_CHECK=0   -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -Wimplicit-fallthrough=0 -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wunused-variable  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <config.h>
/* end */

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