[CMake] Why is Ninja generator disabled by default?

[Bill Hoffman]

Could be a change in ninja.  Our machine updates ninja each build.

- sent from my open source android phone.
On May 22, 2012 6:55 PM, "Claus Klein" <claus.klein at arcormail.de> wrote:

> But it works for each variant:
>
> claus-kleins-macbook-pro:My Tests clausklein$ mkdir ninja
> claus-kleins-macbook-pro:My Tests clausklein$ cd ninja/
> claus-kleins-macbook-pro:ninja clausklein$ pwd
> /Users/clausklein/Downloads/**cmake/My Tests/ninja
> claus-kleins-macbook-pro:ninja clausklein$ "/usr/local/CMake
> 2.8-8.app/Contents/bin/cmake" -G Ninja -DMAKE_SUPPORTS_SPACES=0 ../../Tests/
> **CompileCommandOutput/
> -- The CXX compiler identification is GNU 4.7.0
> -- Checking whether CXX compiler has -isysroot
> -- Checking whether CXX compiler has -isysroot - yes
> -- Checking whether CXX compiler supports OSX deployment target flag
> -- Checking whether CXX compiler supports OSX deployment target flag - yes
> -- Check for working CXX compiler using: Ninja
> -- Check for working CXX compiler using: Ninja -- works
> -- Detecting CXX compiler ABI info
> -- Detecting CXX compiler ABI info - done
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /Users/clausklein/Downloads/**cmake/My
> Tests/ninja
>
> claus-kleins-macbook-pro:ninja clausklein$ ninja -d explain
> ninja explain: output CMakeFiles/test2.dir/relative.**cxx.o doesn't exist
> ninja explain: CMakeFiles/test2.dir/relative.**cxx.o is dirty
> ninja explain: output CMakeFiles/test1.dir/file_**with_spaces.cxx.o
> doesn't exist
> ninja explain: CMakeFiles/test1.dir/file_**with_spaces.cxx.o is dirty
> ninja explain: output CMakeFiles/**CompileCommandOutput.dir/**compile_command_output.cxx.o
> doesn't exist
> ninja explain: CMakeFiles/**CompileCommandOutput.dir/**compile_command_output.cxx.o
> is dirty
> ninja explain: libtest1.a is dirty
> ninja explain: libtest2.dylib is dirty
> ninja explain: CompileCommandOutput is dirty
> ninja explain: libtest1.a is dirty
> ninja explain: libtest2.dylib is dirty
> [6/6] Linking CXX executable CompileCommandOutput
> claus-kleins-macbook-pro:ninja clausklein$ ls -lrta
> total 72
> drwxr-xr-x  4 clausklein staff   136 May 23 00:49 ..
> -rw-r--r--  1 clausklein staff  2989 May 23 00:50 rules.ninja
> -rw-r--r--  1 clausklein staff  1492 May 23 00:50 cmake_install.cmake
> -rw-r--r--  1 clausklein staff  9248 May 23 00:50 build.ninja
> -rw-r--r--  1 clausklein staff 10666 May 23 00:50 CMakeCache.txt
> -rwxr-xr-x  1 clausklein staff 12432 May 23 00:50 libtest2.dylib
> -rw-r--r--  1 clausklein staff   672 May 23 00:50 libtest1.a
> -rwxr-xr-x  1 clausklein staff 12652 May 23 00:50 CompileCommandOutput
> drwxr-xr-x 13 clausklein staff   442 May 23 00:50 CMakeFiles
> -rw-r--r--  1 clausklein staff  1934 May 23 00:50 .ninja_log
> drwxr-xr-x 11 clausklein staff   374 May 23 00:50 .
> claus-kleins-macbook-pro:ninja clausklein$
>
> claus-kleins-macbook-pro:ninja clausklein$ ninja clean
> [1/1] Cleaning all built files...
> Cleaning... 9 files.
> claus-kleins-macbook-pro:ninja clausklein$ ninja rebuild_cache
> [1/1] Running CMake to regenerate build system...
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /Users/clausklein/Downloads/**cmake/My
> Tests/ninja
> claus-kleins-macbook-pro:ninja clausklein$ ninja
> [6/6] Linking CXX executable CompileCommandOutput
> claus-kleins-macbook-pro:ninja clausklein$
>
> space in source; space in working dir, ...
>
> Claus
>
> On 23.05.2012, at 00:42, Richard Wackerbarth wrote:
>
>  Yes, you changed the test configuration and that configuration will work.
>> However, for other generators, you do not need to add the
>> -DMAKE_SUPPORTS_SPACES
>>
>> Richard
>>
>> On May 22, 2012, at 5:18 PM, Claus Klein <claus.klein at arcormail.de>
>> wrote:
>>
>>> claus-kleins-macbook-pro:**CompileCommandOutput clausklein$
>>> "/usr/local/CMake 2.8-8.app/Contents/bin/cmake" -G Ninja
>>> -DMAKE_SUPPORTS_SPACES=1
>>>
>>
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