Try fixing includes

Author: thomasjm

process.cabal

@@ -57,6 +57,11 @@ library
     if os(windows)
         c-sources:
             cbits/win32/runProcess.c
+        includes:
+            runProcess.h
+        install-includes:
+            runProcess.h
+            processFlags.h
         other-modules: System.Process.Windows
         build-depends: Win32 >=2.4 && < 2.14
         -- ole32 and rpcrt4 are needed to create GUIDs for unique named pipes
@@ -70,15 +75,17 @@ library
             cbits/posix/fork_exec.c
             cbits/posix/posix_spawn.c
             cbits/posix/find_executable.c
+        includes:
+            runProcess.h
+            cbits/posix/bsd_closefrom.h
+        install-includes:
+            runProcess.h
+            processFlags.h
+            cbits/posix/bsd_closefrom.h
         other-modules: System.Process.Posix
         build-depends: unix >= 2.5 && < 2.9
 
     include-dirs: include
-    includes:
-        runProcess.h
-    install-includes:
-        runProcess.h
-        processFlags.h
 
     ghc-options: -Wall