have meson conditionally generate c file in source directory when doi…

…ng coverage.

.github/workflows/python-package-conda.yml

@@ -46,11 +46,6 @@ jobs:
       run: |
         mamba install --quiet --yes pip numpy scipy cython mkl=2023 pytest pytest-cov mkl-devel pkg-config meson-python meson ninja setuptools_scm
 
-    - name: Generate cython c # sources for coverage
-      run: |
-        cd pydiso
-        cython mkl_solver.pyx
-
     - name: Install Our Package
       run: |
         python -m pip install --no-build-isolation --verbose --editable . --config-setting=compile-args=-v  --config-settings=setup-args="-Dcy_line_trace=true"

pydiso/meson.build

@@ -95,6 +95,8 @@ cython_c_args = [numpy_nodepr_api, use_math_defines]
 cy_line_trace = get_option('cy_line_trace')
 if cy_line_trace
   cython_c_args += ['-DCYTHON_TRACE_NOGIL=1']
+  cython_file = join_paths(meson.current_source_dir(), 'mkl_solver.pyx')
+  run_command('cython', cython_file)
 endif
 
 cython_cpp_args = cython_c_args