Hello,
If I understand correctly, Clang promoted some warnings to errors and in special the warning Wincompatible-function-pointer-types. It looks as if this prevents me to compile the linux-cog-spur virtual machine:
clang -Wall -g -O2 -DNDEBUG -DDEBUGVM=0 -msse2 -DCOGMTVM=0 -pthread -DLSB_FIRST=1 -m64 -Wno-missing-braces -Wno-unknown-pragmas -Wno-unused-value -Wno-unused-label -Wno-unused-function -Wno-unused-variable -Wno-unused-but-set-variable -DHAVE_CONFIG_H -DSQUEAK_BUILTIN_PLUGIN -I/home/edwin/Squeak/opensmalltalk-vm/building/linux64x64/squeak.cog.spur/build -I/home/edwin/Squeak/opensmalltalk-vm/building/linux64x64/squeak.cog.spur/build -I/home/edwin/Squeak/opensmalltalk-vm/platforms/unix/vm -I/home/edwin/Squeak/opensmalltalk-vm/platforms/Cross/vm -I/home/edwin/Squeak/opensmalltalk-vm/src/spur64.cog -I/home/edwin/Squeak/opensmalltalk-vm/platforms/Cross/vm -I/home/edwin/Squeak/opensmalltalk-vm/platforms/unix/vm -I/home/edwin/Squeak/opensmalltalk-vm/src/spur64.cog -I/home/edwin/Squeak/opensmalltalk-vm/platforms/Cross/plugins/FilePlugin -I/home/edwin/Squeak/opensmalltalk-vm/platforms/unix/plugins/B3DAcceleratorPlugin -m64 -Wno-missing-braces -Wno-unknown-pragmas -Wno-unused-value -Wno-unused-label -Wno-unused-function -Wno-unused-variable -Wno-unused-but-set-variable -c -o sqUnixMain.o /home/edwin/Squeak/opensmalltalk-vm/platforms/unix/vm/sqUnixMain.c
/home/edwin/Squeak/opensmalltalk-vm/platforms/unix/vm/sqUnixMain.c:1832:10: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
printf(optionStrings[count]);
^~~~~~~~~~~~~~~~~~~~
/home/edwin/Squeak/opensmalltalk-vm/platforms/unix/vm/sqUnixMain.c:1832:10: note: treat the string as an argument to avoid this
printf(optionStrings[count]);
^
"%s",
/home/edwin/Squeak/opensmalltalk-vm/platforms/unix/vm/sqUnixMain.c:2324:38: error: incompatible function pointer types assigning to 'void (*)(int, struct __siginfo *, void *)' from 'void (int, siginfo_t *, ucontext_t *)' (aka 'void (int, struct __siginfo *, struct __ucontext *)') [-Wincompatible-function-pointer-types]
sigsegv_handler_action.sa_sigaction = sigsegv;
^ ~~~~~~~
/home/edwin/Squeak/opensmalltalk-vm/platforms/unix/vm/sqUnixMain.c:2331:38: error: incompatible function pointer types assigning to 'void (*)(int, struct __siginfo *, void *)' from 'void (int, siginfo_t *, ucontext_t *)' (aka 'void (int, struct __siginfo *, struct __ucontext *)') [-Wincompatible-function-pointer-types]
sigusr1_handler_action.sa_sigaction = sigusr1;
^ ~~~~~~~
1 warning and 2 errors generated.
*** Error code 1
Stop.
make[1]: stopped in /home/edwin/Squeak/opensmalltalk-vm/building/linux64x64/squeak.cog.spur/build/vm
*** Error code 1
Stop.
make: stopped in /home/edwin/Squeak/opensmalltalk-vm/building/linux64x64/squeak.cog.spur/build
[edwin@ottopedi ~/Squeak/opensmalltalk-vm/building/linux64x64/squeak.cog.spur/build]$
If my assumption is correct, the 'solution seems to downgrade the error to a warning with a compiler option: -Wno-error=, but I have no idea how to do this in the whole configuration and compilation process.
Can someone tell how this should be done, or is it better to signal this as an error and wait until it gets corrected.
Kind regards