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ninja: Add support for custom depfile formats 

Not everything that isn't MSVC is GCC. I have support for LDC's depfile
format on its way upstream[1], but its future is uncertain. CMake should
at least support this for future depfile formats.

[1]https://github.com/martine/ninja/pull/721
This commit is contained in:
Ben Boeckel 2014-03-23 23:47:56 -04:00
parent 6f39a6ff32
commit 9523d2a55c
2 changed files with 10 additions and 0 deletions
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5
Help/release/dev/custom-ninja-deptypes.rst Normal file
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@ -0,0 +1,5 @@
custom-ninja-deptypes
---------------------
* Add a `CMAKE_NINJA_DEPTYPE_<LANG>` variable so that compilers may set the
deptype for use in Ninja other than those CMake itself knows about.

5
Source/cmNinjaTargetGenerator.cxx
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@ -418,6 +418,11 @@ cmNinjaTargetGenerator
else
{
deptype = "gcc";
const char* langdeptype = mf->GetDefinition("CMAKE_NINJA_DEPTYPE_" + lang);
if (langdeptype)
{
deptype = langdeptype;
}
depfile = "$DEP_FILE";
const std::string flagsName = "CMAKE_DEPFILE_FLAGS_" + lang;
std::string depfileFlags = mf->GetSafeDefinition(flagsName);