have_library: checking for -llog... -------------------- no

DYLD_LIBRARY_PATH=.:../../../../.. ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I../../../../../.ext/include/arm64-darwin24 -I../../../../.././include -I../../../../.././.bundle/gems/syslog-0.2.0/ext/syslog -I/opt/homebrew/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -I/opt/homebrew/include -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef -fno-common -pipe conftest.c -L. -L../../../../.. -L/opt/homebrew/lib -L. -L/opt/homebrew/lib  -Wl,-headerpad_max_install_names -fstack-protector-strong -L/opt/homebrew/lib  -arch arm64   -lruby.3.4-static -framework CoreFoundation -lgmp -ldl -lobjc -lpthread   -lpthread  "
ld: warning: ignoring duplicate libraries: '-lpthread'
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return !!argv[argc];
6: }
/* end */

DYLD_LIBRARY_PATH=.:../../../../.. ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I../../../../../.ext/include/arm64-darwin24 -I../../../../.././include -I../../../../.././.bundle/gems/syslog-0.2.0/ext/syslog -I/opt/homebrew/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -I/opt/homebrew/include -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef -fno-common -pipe conftest.c -L. -L../../../../.. -L/opt/homebrew/lib -L. -L/opt/homebrew/lib  -Wl,-headerpad_max_install_names -fstack-protector-strong -L/opt/homebrew/lib  -arch arm64   -lruby.3.4-static -framework CoreFoundation -lgmp -ldl -lobjc -lpthread  -llog  -lpthread  "
ld: warning: ignoring duplicate libraries: '-lpthread'
ld: library 'log' not found
clang: error: linker command failed with exit code 1 (use -v to see invocation)
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:     int (* volatile tp)(void)=(int (*)(void))&t;
 9:     printf("%d", (*tp)());
10:   }
11: 
12:   return !!argv[argc];
13: }
14: 
15: int t(void) { ; return 0; }
/* end */

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

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

DYLD_LIBRARY_PATH=.:../../../../.. ASAN_OPTIONS=detect_leaks=0 "clang -I../../../../../.ext/include/arm64-darwin24 -I../../../../.././include -I../../../../.././.bundle/gems/syslog-0.2.0/ext/syslog -I/opt/homebrew/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -I/opt/homebrew/include -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef -fno-common -pipe -arch arm64  -c conftest.c"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <syslog.h>
/* end */

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

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

DYLD_LIBRARY_PATH=.:../../../../.. ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I../../../../../.ext/include/arm64-darwin24 -I../../../../.././include -I../../../../.././.bundle/gems/syslog-0.2.0/ext/syslog -I/opt/homebrew/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -I/opt/homebrew/include -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef -fno-common -pipe conftest.c -L. -L../../../../.. -L/opt/homebrew/lib -L. -L/opt/homebrew/lib  -Wl,-headerpad_max_install_names -fstack-protector-strong -L/opt/homebrew/lib  -arch arm64   -lruby.3.4-static -framework CoreFoundation -lgmp -ldl -lobjc -lpthread   -lpthread  "
conftest.c:14:57: error: use of undeclared identifier 'openlog'
   14 | int t(void) { void ((*volatile p)()); p = (void ((*)()))openlog; return !p; }
      |                                                         ^
1 error generated.
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:     int (* volatile tp)(void)=(int (*)(void))&t;
 9:     printf("%d", (*tp)());
10:   }
11: 
12:   return !!argv[argc];
13: }
14: int t(void) { void ((*volatile p)()); p = (void ((*)()))openlog; return !p; }
/* end */

DYLD_LIBRARY_PATH=.:../../../../.. ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I../../../../../.ext/include/arm64-darwin24 -I../../../../.././include -I../../../../.././.bundle/gems/syslog-0.2.0/ext/syslog -I/opt/homebrew/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -I/opt/homebrew/include -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef -fno-common -pipe conftest.c -L. -L../../../../.. -L/opt/homebrew/lib -L. -L/opt/homebrew/lib  -Wl,-headerpad_max_install_names -fstack-protector-strong -L/opt/homebrew/lib  -arch arm64   -lruby.3.4-static -framework CoreFoundation -lgmp -ldl -lobjc -lpthread   -lpthread  "
ld: warning: ignoring duplicate libraries: '-lpthread'
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:     int (* volatile tp)(void)=(int (*)(void))&t;
 9:     printf("%d", (*tp)());
10:   }
11: 
12:   return !!argv[argc];
13: }
14: extern void openlog();
15: int t(void) { openlog(); return 0; }
/* end */

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

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

DYLD_LIBRARY_PATH=.:../../../../.. ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I../../../../../.ext/include/arm64-darwin24 -I../../../../.././include -I../../../../.././.bundle/gems/syslog-0.2.0/ext/syslog -I/opt/homebrew/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -I/opt/homebrew/include -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef -fno-common -pipe conftest.c -L. -L../../../../.. -L/opt/homebrew/lib -L. -L/opt/homebrew/lib  -Wl,-headerpad_max_install_names -fstack-protector-strong -L/opt/homebrew/lib  -arch arm64   -lruby.3.4-static -framework CoreFoundation -lgmp -ldl -lobjc -lpthread   -lpthread  "
conftest.c:14:57: error: use of undeclared identifier 'setlogmask'
   14 | int t(void) { void ((*volatile p)()); p = (void ((*)()))setlogmask; return !p; }
      |                                                         ^
1 error generated.
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:     int (* volatile tp)(void)=(int (*)(void))&t;
 9:     printf("%d", (*tp)());
10:   }
11: 
12:   return !!argv[argc];
13: }
14: int t(void) { void ((*volatile p)()); p = (void ((*)()))setlogmask; return !p; }
/* end */

DYLD_LIBRARY_PATH=.:../../../../.. ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I../../../../../.ext/include/arm64-darwin24 -I../../../../.././include -I../../../../.././.bundle/gems/syslog-0.2.0/ext/syslog -I/opt/homebrew/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -I/opt/homebrew/include -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef -fno-common -pipe conftest.c -L. -L../../../../.. -L/opt/homebrew/lib -L. -L/opt/homebrew/lib  -Wl,-headerpad_max_install_names -fstack-protector-strong -L/opt/homebrew/lib  -arch arm64   -lruby.3.4-static -framework CoreFoundation -lgmp -ldl -lobjc -lpthread   -lpthread  "
ld: warning: ignoring duplicate libraries: '-lpthread'
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:     int (* volatile tp)(void)=(int (*)(void))&t;
 9:     printf("%d", (*tp)());
10:   }
11: 
12:   return !!argv[argc];
13: }
14: extern void setlogmask();
15: int t(void) { setlogmask(); return 0; }
/* end */

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

extconf.h is:
/* begin */
1: #ifndef EXTCONF_H
2: #define EXTCONF_H
3: #define HAVE_SYSLOG_H 1
4: #define HAVE_OPENLOG 1
5: #define HAVE_SETLOGMASK 1
6: #endif
/* end */

