Merge pull request #148 from slayoo/camp

trying to sort out macOS gfortran so missing on default brew gcc install

Author: slayoo

CMakeLists.txt

@@ -297,6 +297,9 @@ target_compile_definitions(_PyPartMC PRIVATE VERSION_INFO=${VERSION_INFO})
 target_link_libraries(_PyPartMC PRIVATE partmclib)
 if (APPLE)
   target_link_options(_PyPartMC PRIVATE -Wl,-no_compact_unwind -Wl,-keep_dwarf_unwind)
+  if(CMAKE_Fortran_COMPILER_ID STREQUAL GNU)
+    target_link_libraries(_PyPartMC PRIVATE -static gfortran -dynamic)
+  endif()
 endif()
 if (WIN32)
   target_link_libraries(_PyPartMC PRIVATE -static gcc stdc++ winpthread quadmath -dynamic)