test also F90 module and include path

test/fc/src/CMakeLists.txt

@@ -1 +1 @@
-add_executable(example example.f90)
+add_executable(example example.f90 module.f90)

test/fc/src/example.f90

@@ -1,4 +1,5 @@
 program example
+   use foo, only: hello
    implicit none
-   print *, 'Hello World!'
+   call hello()
 end program

test/fc/src/module.f90

@@ -0,0 +1,7 @@
+module foo
+   implicit none
+contains
+   subroutine hello()
+      print *, 'Hello World!'
+   end subroutine
+end module