Hi, yesterday I noticed that the Debug buildtype has the same problems as the --enable-debug option in autohell. Its not possible to properly debug an application that has been built with CMAKE_BUILD_TYPE=Debug. At least not with Unix Makefile's (possibly the same applies to MinGW Makefile's but I didn't check that). The problem is the compiler flags that are set in this build mode:
-g -O2 this leads to gcc optimizing some parts of the code, so when stepping through some code its not linear but you're going to jump forward and backwards due to the optimizations. Also some local variables will be optimized away and thus you can't inspect their value. So the only thing for which code build with Debug buildtype is useful is to get proper backtraces (which include function and file-information). But that should also be possible with the RelWithDbgInfo build, or not? The only workaround is to use debugfull, at least on *nix. On win32 if MinGW Makefile's also include -g -O2 you're screwed because for some reason the debugfull build type is not supported on win32. So IMHO CMake should use -g -O0 for Debug and -g3 -O0 for debugfull (the latter already works), now before I file a bugreport: Did I miss anything that makes Debug not unusable (except for backtraces)? Andreas -- You have no real enemies. _______________________________________________ CMake mailing list CMake@cmake.org http://www.cmake.org/mailman/listinfo/cmake
