FYI: On Linux (using CMake v2.8.8 and a recent Ninja), the Ninja build works as expected. Just like it used to do on Windows. I now suspect the problem is related to the CMake version I use (cmake version 2.8.8.20120605). I picked it up somewhere I don't recall and that's probably the cause of the problem. I'll try downloading the most recent binary pre-release and see if that doesn't fix the problem.
If so, I apologize for any wasted time. Cheers, Mikael 2012/6/27 David Cole <david.c...@kitware.com> > On Tue, Jun 26, 2012 at 6:40 PM, Mikael Lyngvig <mik...@lyngvig.org> > wrote: > > Ohh, sorry. Ninja says: > > > > [117/325] Building CXX object Driver/CMakeFiles/Driver.dir/Driver.cpp.obj > > FAILED: c:\Mingw64\bin\c++.exe -DNDEBUG > > -DBR0_BUILD_ASSERT=BR0_BUILD_ASSERT_DELETE > > -DBR0_BUILD_CHARSET=BR0_BUILD_CHARSET_ASCII > > -DBR0_BUILD_ENDIAN=BR0_BUILD_ENDIAN_LITTLE > > -DBR0_BUILD_MODE=BR0_BUILD_MODE_SHIP > > -DBR0_BUILD_TARGET=BR0_BUILD_TARGET_WINDOWS -Wall -Wno-long-long > -pedantic > > -I.. -Ic:/Synology/clang-3.2-WIN64/include -static-libgcc -MMD -MT > > Driver/CMakeFiles/Driver.dir/Driver.cpp.obj -MF > > "Driver/CMakeFiles/Driver.dir/Driver.cpp.obj.d" -o > > Driver/CMakeFiles/Driver.dir/Driver.cpp.obj -c > > C:/Dropbox/Source/braceless/src/Driver/Driver.cpp > > C:/Dropbox/Source/braceless/src/Driver/Driver.cpp:11:42: fatal error: > > Braceless0/Backend/Backend.hpp: No such file or directory > > compilation terminated. > > [117/325] Building CXX object Driver/CMakeFiles/Driver.dir/Setup.cpp.obj > > ninja: build stopped: subcommand failed. > > > > The problem is that the file Driver.cpp depends on Backend.hpp having > been > > created. But Driver.cpp should not be compiled until the second-last > item > > in the list of objects to make ([324/325]). > > > > So, somehow, Ninja picks up the target Driver.obj and builds it way too > > early. With GNU Make, everything goes according to plan, but with Ninja, > > there's some sort of confusion somewhere. > > > > > > Cheers, > > Mikael > > > > 2012/6/27 David Cole <david.c...@kitware.com> > >> > >> On Tue, Jun 26, 2012 at 6:30 PM, Mikael Lyngvig <mik...@lyngvig.org> > >> wrote: > >> > No, I delete the entire build tree (I build out of the source tree, > >> > btw). > >> > > >> > The procedure is as follows: > >> > > >> > rem foo contains the source code > >> > md foo-build > >> > cd foo-build > >> > cmake -G Ninja ..\foo > >> > ninja > >> > rem fails as described earlier > >> > >> > >> But you didn't really describe the failure. > >> > >> What is the error output? (from cmake or from ninja?) > >> > >> > >> > > >> > cd .. > >> > rd /s /q foo-build > >> > md foo-build > >> > cd foo-build > >> > cmake -G "MinGW Makefiles" ..\foo > >> > make > >> > rem succeeds as described earlier > >> > > >> > Thank you for your reply. If you need source, I can send you a zip > >> > archive > >> > as it is an incomplete open source project. > >> > > >> > > >> > Cheers, > >> > Mikael > >> > > >> > > >> > 2012/6/27 David Cole <david.c...@kitware.com> > >> >> > >> >> You can't switch generators in the same build tree without deleting > >> >> absolutely everything and starting over. > >> >> > >> >> Is that what you're trying to do? > >> >> > >> >> If you want a make build tree and a ninja build tree, you'll need two > >> >> separate build trees.... > >> >> > >> >> > >> >> HTH, > >> >> David > >> >> > >> >> > >> >> On Tue, Jun 26, 2012 at 4:45 PM, Mikael Lyngvig <mik...@lyngvig.org> > >> >> wrote: > >> >> > Hi, > >> >> > > >> >> > I am a fan of Ninja. Since I started using it, everything's been > >> >> > built > >> >> > much, much faster than before. Among other things because I use > >> >> > CMake > >> >> > to > >> >> > publish headers to the binary directory so as to allow me to > include > >> >> > the > >> >> > headers with a relative path without having to move all my headers > to > >> >> > a > >> >> > central include directory (I want my source files and headers to be > >> >> > in > >> >> > the > >> >> > same directory). Ninja does this very fast, whereas GNU Make takes > >> >> > forever > >> >> > to publish my header files. > >> >> > > >> >> > However, I have a puzzling problem: Out of the blue, Ninja started > >> >> > failing > >> >> > to build my project. If I remake the project with 'cmake -G "MinGW > >> >> > Makefiles"', it takes ages to build but it succeeds. If I do > 'cmake > >> >> > -G > >> >> > Ninja', it quickly aborts because it seems that either CMake or > Ninja > >> >> > wants > >> >> > to build one of the last targets at a very early point in the build > >> >> > phase. > >> >> > I have an executable, driver.exe, which is supposed to be built as > >> >> > the > >> >> > very > >> >> > last item. With Ninja, however, it pops up around 20 percent into > >> >> > the > >> >> > build > >> >> > and the build fails because the dependent libraries are nowhere to > be > >> >> > found > >> >> > (they haven't been built yet). I have tried clearing the binaries > >> >> > directory > >> >> > (rd /s /q foo & md foo) and so on a number of times, but Ninja > >> >> > insists > >> >> > on > >> >> > trying to build this final executable at a very early stage. > >> >> > > >> >> > Any ideas? I suppose the problem is caused by one of these three > >> >> > things: > >> >> > > >> >> > 1. An error on my part. Very likely. > >> >> > 2. An error in CMake's generation of Ninja scripts. Not > unlikely > >> >> > due > >> >> > to > >> >> > the still fairly immature support for Ninja. > >> >> > 3. An error in Ninja. Highly unlikely as Ninja builds tons and > >> >> > tons > >> >> > of > >> >> > projects all over the world each day and nobody seem to have run > into > >> >> > this > >> >> > problem before. > >> >> > > >> >> > How do you locate the problem? > >> >> > > >> >> > Thanks in advance! > >> >> > > >> >> > > >> >> > Cheers, > >> >> > Mikael > >> >> > -- Love Thy Frog! > >> >> > > >> >> > -- > >> >> > > >> >> > Powered by www.kitware.com > >> >> > > >> >> > Visit other Kitware open-source projects at > >> >> > http://www.kitware.com/opensource/opensource.html > >> >> > > >> >> > Please keep messages on-topic and check the CMake FAQ at: > >> >> > http://www.cmake.org/Wiki/CMake_FAQ > >> >> > > >> >> > Follow this link to subscribe/unsubscribe: > >> >> > http://www.cmake.org/mailman/listinfo/cmake > >> > > >> > > > > > > > What does your add_custom_command look like that generates Backend.hpp? > > (offline for a while, next response much later... :-) > -- -- Love Thy Frog!
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