clang: error: non-void function 'gplp_func_file_probe' should return a value
When compiling gnumeric 1.12.44 on NetBSD-8.99.30/amd64 with clang-7.0.0 I see:
python-loader.c:227:3: error: non-void function 'gplp_func_file_probe' should return a value [-Wreturn-type]
The attached patch fixes the problem for me. patch-plugins_python-loader_python-loader.c