Automatically set Ninja generator for --use-make=ninja

When using `--use-make=ninja` or `--use-make=ninja.exe`, the build would previously fail because CMake was not instructed to generate the corresponding Ninja build files. It would default to generating Makefiles for Linux or Visual Studio MSBuild files for Windows. This change detects when the specified make program is ninja and automatically adds the `-G Ninja` flag to the CMake config step.

Author: omjavaid

lnt/tests/test_suite.py

@@ -448,6 +448,11 @@ def _configure(self, path, extra_cmake_defs=[], execute=True):
  defs['CMAKE_CXX_COMPILER'] = self.opts.cxx
  if self.opts.make:
  defs['CMAKE_MAKE_PROGRAM'] = self.opts.make
+ if self.opts.make and (self.opts.make.endswith('ninja') or
+ self.opts.make.endswith('ninja.exe')):
+ cmake_flags = ['-G', 'Ninja']
+ else:
+ cmake_flags = []
 
  cmake_build_types = ('DEBUG', 'MINSIZEREL', 'RELEASE',
  'RELWITHDEBINFO')