관리-도구
편집 파일: mkmf.log
have_library: checking for main() in -lsocket... -------------------- no "gcc -o conftest -I/opt/alt/ruby21/include/ruby-2.1.0/x86_64-linux -I/opt/alt/ruby21/include/ruby-2.1.0/ruby/backward -I/opt/alt/ruby21/include/ruby-2.1.0 -I. -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection conftest.c -L. -L/opt/alt/ruby21/lib64 -Wl,-R/opt/alt/ruby21/lib64 -L. -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -L/opt/alt/openssl/lib64 -L/opt/alt/ruby21/lib64 -Wl,-rpath=/opt/alt/openssl/lib64,-rpath=/opt/alt/ruby21/lib64 -fstack-protector -rdynamic -Wl,-export-dynamic -m64 -Wl,-R -Wl,/opt/alt/ruby21/lib64 -L/opt/alt/ruby21/lib64 -lruby -lpthread -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/alt/ruby21/include/ruby-2.1.0/x86_64-linux -I/opt/alt/ruby21/include/ruby-2.1.0/ruby/backward -I/opt/alt/ruby21/include/ruby-2.1.0 -I. -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection conftest.c -L. -L/opt/alt/ruby21/lib64 -Wl,-R/opt/alt/ruby21/lib64 -L. -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -L/opt/alt/openssl/lib64 -L/opt/alt/ruby21/lib64 -Wl,-rpath=/opt/alt/openssl/lib64,-rpath=/opt/alt/ruby21/lib64 -fstack-protector -rdynamic -Wl,-export-dynamic -m64 -Wl,-R -Wl,/opt/alt/ruby21/lib64 -L/opt/alt/ruby21/lib64 -lruby -lsocket -lpthread -ldl -lcrypt -lm -lc" conftest.c: In function 't': conftest.c:13:32: warning: variable 'p' set but not used [-Wunused-but-set-variable] int t(void) { void ((*volatile p)()); p = (void ((*)()))main; return 0; } ^ /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: int t(void) { void ((*volatile p)()); p = (void ((*)()))main; return 0; } /* end */ "gcc -o conftest -I/opt/alt/ruby21/include/ruby-2.1.0/x86_64-linux -I/opt/alt/ruby21/include/ruby-2.1.0/ruby/backward -I/opt/alt/ruby21/include/ruby-2.1.0 -I. -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection conftest.c -L. -L/opt/alt/ruby21/lib64 -Wl,-R/opt/alt/ruby21/lib64 -L. -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -L/opt/alt/openssl/lib64 -L/opt/alt/ruby21/lib64 -Wl,-rpath=/opt/alt/openssl/lib64,-rpath=/opt/alt/ruby21/lib64 -fstack-protector -rdynamic -Wl,-export-dynamic -m64 -Wl,-R -Wl,/opt/alt/ruby21/lib64 -L/opt/alt/ruby21/lib64 -lruby -lsocket -lpthread -ldl -lcrypt -lm -lc" conftest.c: In function 't': conftest.c:13:15: error: too few arguments to function 'main' int t(void) { main(); return 0; } ^~~~ conftest.c:5:5: note: declared here int main(int argc, char **argv) ^~~~ 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) { main(); return 0; } /* end */ --------------------