CMake: Add upstream patch to fix the build with recent GCCs.
At least lang/gcc (4.8) and later were known to be broken like this:
/usr/ports/devel/cmake/work/cmake-3.4.0/Source/cmArchiveWrite.h:93:23: error:
'mode_t' has not been declared
void SetPermissions(mode_t permissions_)
^
/usr/ports/devel/cmake/work/cmake-3.4.0/Source/cmArchiveWrite.h:106:27: error:
'mode_t' has not been declared
void SetPermissionsMask(mode_t permissionsMask_)
^
/usr/ports/devel/cmake/work/cmake-3.4.0/Source/cmArchiveWrite.h:179:26: error:
'mode_t' was not declared in this scope
cmArchiveWriteOptional<mode_t> Permissions;
^
/usr/ports/devel/cmake/work/cmake-3.4.0/Source/cmArchiveWrite.h:179:32: error:
template argument 1 is invalid
cmArchiveWriteOptional<mode_t> Permissions;
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