Re: Help needed with wxWidgets3.1 tests compilation error
On 20/01/2022 20:38, Brian Inglis wrote: On 2022-01-20 10:10, Hamish McIntyre-Bhatty wrote: I've been having trouble compiling the unit tests for wxWidgets3.1-3.1.5 on Cygwin. The same tests build just fine on my Linux Mint 20.3 install, however that is using GCC 9.3.0 instead of Cygwin's 11.2.0. Attached is the full build log, but I will also point out my ideas about particular issues here. Note: -Werror=format-security is used in the Makefile. I couldn't find exactly what this does, but I'm probably looking in the wrong place - the manpage. Perhaps the following could also be explained by differences from GCC 9 to 11? I check first as in `info GCC Wformat-security` should only care about *printf string variables without using a separate format string. Ah okay, I guess that doesn't explain the -Werror=zero-as-null-pointer-constant errors later. I guess that might be a GCC default change. The first is: In file included from /usr/include/unistd.h:4, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/filefn.h:23, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/utils.h:20, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/cursor.h:75, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/event.h:22, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/evtloop.h:14, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/testprec.h:5, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:433: /usr/include/sys/unistd.h:23:9: error: redundant redeclaration of ‘int chmod(const char*, mode_t)’ in same scope [-Werror=redundant-decls] 23 | int chmod (const char *__path, mode_t __mode); | ^ In file included from /usr/include/sys/_default_fcntl.h:211, from /usr/include/sys/fcntl.h:3, from /usr/include/fcntl.h:12, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:83: /usr/include/sys/stat.h:137:9: note: previous declaration of ‘int chmod(const char*, mode_t)’ 137 | int chmod (const char *__path, mode_t __mode ); | ^ This doesn't happen on my Linux Mint 20.3 (Ubuntu 20.04) host, so I'm assuming this is something to do with the standard library? Next is: In file included from /usr/include/unistd.h:4, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/filefn.h:23, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/utils.h:20, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/cursor.h:75, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/event.h:22, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/evtloop.h:14, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/testprec.h:5, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:433: /usr/include/sys/unistd.h:179:9: error: redundant redeclaration of ‘int pthread_atfork(void (*)(), void (*)(), void (*)())’ in same scope [-Werror=redundant-decls] 179 | int pthread_atfork (void (*)(void), void (*)(void), void (*)(void)); | ^~ In file included from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/x86_64-pc-cygwin/bits/gthr-default.h:35, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/x86_64-pc-cygwin/bits/gthr.h:148, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/ext/atomicity.h:35, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/bits/ios_base.h:39, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/iomanip:40, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:63: /usr/include/pthread.h:65:5: note: previous declaration of ‘int pthread_atfork(void (*)(), void (*)(), void (*)())’ 65 | int pthread_atfork (void (*)(void), void (*)(void), void (*)(void)); | ^~ Ditto. Looking at chmod(3p), pthread_atfork(3p), pthread.h(0p) sys_stat.h(0p), unistd.h(0p) those definitions should *NOT* normally be accessible from unistd.h so there should be no conflict, as POSIX specifies what is visible. Perhaps they are there for compatibility with older systems like BSD or
Re: Help needed with wxWidgets3.1 tests compilation error
On 2022-01-20 10:10, Hamish McIntyre-Bhatty wrote: I've been having trouble compiling the unit tests for wxWidgets3.1-3.1.5 on Cygwin. The same tests build just fine on my Linux Mint 20.3 install, however that is using GCC 9.3.0 instead of Cygwin's 11.2.0. Attached is the full build log, but I will also point out my ideas about particular issues here. Note: -Werror=format-security is used in the Makefile. I couldn't find exactly what this does, but I'm probably looking in the wrong place - the manpage. Perhaps the following could also be explained by differences from GCC 9 to 11? I check first as in `info GCC Wformat-security` should only care about *printf string variables without using a separate format string. The first is: In file included from /usr/include/unistd.h:4, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/filefn.h:23, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/utils.h:20, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/cursor.h:75, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/event.h:22, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/evtloop.h:14, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/testprec.h:5, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:433: /usr/include/sys/unistd.h:23:9: error: redundant redeclaration of ‘int chmod(const char*, mode_t)’ in same scope [-Werror=redundant-decls] 23 | int chmod (const char *__path, mode_t __mode); | ^ In file included from /usr/include/sys/_default_fcntl.h:211, from /usr/include/sys/fcntl.h:3, from /usr/include/fcntl.h:12, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:83: /usr/include/sys/stat.h:137:9: note: previous declaration of ‘int chmod(const char*, mode_t)’ 137 | int chmod (const char *__path, mode_t __mode ); | ^ This doesn't happen on my Linux Mint 20.3 (Ubuntu 20.04) host, so I'm assuming this is something to do with the standard library? Next is: In file included from /usr/include/unistd.h:4, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/filefn.h:23, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/utils.h:20, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/cursor.h:75, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/event.h:22, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/evtloop.h:14, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/testprec.h:5, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:433: /usr/include/sys/unistd.h:179:9: error: redundant redeclaration of ‘int pthread_atfork(void (*)(), void (*)(), void (*)())’ in same scope [-Werror=redundant-decls] 179 | int pthread_atfork (void (*)(void), void (*)(void), void (*)(void)); | ^~ In file included from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/x86_64-pc-cygwin/bits/gthr-default.h:35, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/x86_64-pc-cygwin/bits/gthr.h:148, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/ext/atomicity.h:35, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/bits/ios_base.h:39, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/iomanip:40, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:63: /usr/include/pthread.h:65:5: note: previous declaration of ‘int pthread_atfork(void (*)(), void (*)(), void (*)())’ 65 | int pthread_atfork (void (*)(void), void (*)(void), void (*)(void)); | ^~ Ditto. Looking at chmod(3p), pthread_atfork(3p), pthread.h(0p) sys_stat.h(0p), unistd.h(0p) those definitions should *NOT* normally be accessible from unistd.h so there should be no conflict, as POSIX specifies what is visible. Perhaps they are there for compatibility with older systems like BSD or Solaris and should be suppressed when newer feature macros are defined or specific legacy system macros are not defined? Also of note, is that Cygwin is several times slower at
Help needed with wxWidgets3.1 tests compilation error
Hi there, I've been having trouble compiling the unit tests for wxWidgets3.1-3.1.5 on Cygwin. The same tests build just fine on my Linux Mint 20.3 install, however that is using GCC 9.3.0 instead of Cygwin's 11.2.0. Attached is the full build log, but I will also point out my ideas about particular issues here. Note: -Werror=format-security is used in the Makefile. I couldn't find exactly what this does, but I'm probably looking in the wrong place - the manpage. Perhaps the following could also be explained by differences from GCC 9 to 11? The first is: In file included from /usr/include/unistd.h:4, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/filefn.h:23, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/utils.h:20, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/cursor.h:75, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/event.h:22, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/evtloop.h:14, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/testprec.h:5, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:433: /usr/include/sys/unistd.h:23:9: error: redundant redeclaration of ‘int chmod(const char*, mode_t)’ in same scope [-Werror=redundant-decls] 23 | int chmod (const char *__path, mode_t __mode); | ^ In file included from /usr/include/sys/_default_fcntl.h:211, from /usr/include/sys/fcntl.h:3, from /usr/include/fcntl.h:12, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:83: /usr/include/sys/stat.h:137:9: note: previous declaration of ‘int chmod(const char*, mode_t)’ 137 | int chmod (const char *__path, mode_t __mode ); | ^ This doesn't happen on my Linux Mint 20.3 (Ubuntu 20.04) host, so I'm assuming this is something to do with the standard library? Next is: In file included from /usr/include/unistd.h:4, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/filefn.h:23, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/utils.h:20, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/cursor.h:75, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/event.h:22, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/include/wx/evtloop.h:14, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/testprec.h:5, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:433: /usr/include/sys/unistd.h:179:9: error: redundant redeclaration of ‘int pthread_atfork(void (*)(), void (*)(), void (*)())’ in same scope [-Werror=redundant-decls] 179 | int pthread_atfork (void (*)(void), void (*)(void), void (*)(void)); | ^~ In file included from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/x86_64-pc-cygwin/bits/gthr-default.h:35, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/x86_64-pc-cygwin/bits/gthr.h:148, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/ext/atomicity.h:35, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/bits/ios_base.h:39, from /usr/lib/gcc/x86_64-pc-cygwin/11/include/c++/iomanip:40, from /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/src/wxWidgets-3.1.5/tests/allheaders.cpp:63: /usr/include/pthread.h:65:5: note: previous declaration of ‘int pthread_atfork(void (*)(), void (*)(), void (*)())’ 65 | int pthread_atfork (void (*)(void), void (*)(void), void (*)(void)); | ^~ Ditto. Then there are some wxwidgets-specific ones, but I'll make a separate thread for those because I have an idea about what might be causing them. I'll probably need to ask the wxWidgets people. Hopefully someone here with more experience can help. Also of note, is that Cygwin is several times slower at compiling pretty much everything for me. Does anyone know if this is GCC 9 vs 11 speed, or running Cygwin in Windows 11 in KVM, or something else? I am running on AMD Ryzen 3000, if that has anything to do with it. Hamish /home/Hamis/wxwidgets3.1/wxWidgets3.1-3.1.5-1.x86_64/build/gtk2/bk-deps g++ -c -o test_allheaders_allheaders.o
