Tweak the build so that the generated dylib on OSX has its full path

as per where cabal installs the library.  This way of doing it should
be compatible with all versions of OSX.

GLFW-b.cabal

@@ -111,7 +111,7 @@ library
   else
     if os(darwin)
       extra-libraries: glfw
-      extra-lib-dirs: build/dynamic
+      extra-lib-dirs: build
     else
       if os(mingw32)
         include-dirs:

Makefile

@@ -13,22 +13,17 @@ C_SRC     := $(wildcard $(SRC_DIR)/*.c)
 GLFW_SRC  := $(wildcard $(GLFW_DIR)/*.c)
 OBJS      := $(addprefix $(BUILD_DIR)/, $(OBJ_C_SRC:.m=.o) $(C_SRC:.c=.o))
 
-all: $(BUILD_DIR)/static/libglfw.a $(BUILD_DIR)/dynamic/libglfw.dylib
+all: $(BUILD_DIR)/libglfw.dylib
 
-$(BUILD_DIR)/dynamic/libglfw.dylib: $(OBJS)
+$(BUILD_DIR)/libglfw.dylib: $(OBJS)
 	$(CC) -dynamiclib -Wl,-single_module -compatibility_version 1       \
         -current_version 1                                            \
         $(GLFW_FLAG) -o $@ $(OBJS) $(GLFW_SRC) $(FRAMEWORK)
 
-$(BUILD_DIR)/static/libglfw.a: $(OBJS)
-	ar -rcs $@ $(OBJS)
-
 .PHONY: $(BUILD_DIR)/$(SRC_DIR)/.build-tag
 
 $(BUILD_DIR)/$(SRC_DIR)/.build-tag:
 	mkdir -p $(BUILD_DIR)/$(SRC_DIR)
-	mkdir -p $(BUILD_DIR)/static
-	mkdir -p $(BUILD_DIR)/dynamic
 	touch $@
 
 $(OBJS): $(BUILD_DIR)/$(SRC_DIR)/.build-tag

Setup.hs

@@ -10,7 +10,7 @@ import Distribution.Simple.Setup ( ConfigFlags, fromFlag, configVerbosity
                                  , CopyFlags(..)
                                  , configProgramArgs )
 import Distribution.Simple.Utils ( rawSystemExit, installOrdinaryFile )
-import Distribution.Verbosity ( verbose )
+import Distribution.Verbosity ( verbose, Verbosity )
 import Distribution.Simple ( defaultMainWithHooks
                            , simpleUserHooks
                            , buildHook, Args, confHook
@@ -25,11 +25,8 @@ import Distribution.PackageDescription ( emptyBuildInfo
                                        , PackageDescription )
 import System.FilePath ( (</>) )
 
-staticLibDir :: FilePath
-staticLibDir = "build"</>"static"
-
 dynamicLibDir :: FilePath
-dynamicLibDir = "build"</>"dynamic"
+dynamicLibDir = "build"
 
 main :: IO ()
 main = defaultMainWithHooks simpleUserHooks
@@ -75,7 +72,7 @@ glfwPkgDesc pkgDesc =
 libDirGlfw :: HookedBuildInfo
 libDirGlfw = (Just buildinfo, [])
   where buildinfo = emptyBuildInfo
-                     { extraLibDirs = [ staticLibDir, dynamicLibDir ] }
+                     { extraLibDirs = [ dynamicLibDir ] }
 
 postInstGlfw :: Args -> InstallFlags -> PackageDescription
              -> LocalBuildInfo -> IO ()
@@ -99,14 +96,14 @@ postCopyGlfw _ flags pkgDesc lbi =
             . fromFlag . copyDest $ flags
           libPref = libdir installDirs
           verbosity = fromFlag $ copyVerbosity flags
-          copyStatic dest f  = installOrdinaryFile verbosity (staticLibDir</>f) (dest</>f)
           copyDynamic dest f = installOrdinaryFile verbosity (dynamicLibDir</>f) (dest</>f)
-      maybe (return ()) (copyStatic libPref) (Just staticLibName)
       maybe (return ()) (copyDynamic libPref) (Just dynamicLibName)
+      install_name_tool verbosity (libPref</>dynamicLibName)
     _ -> return ()
 
-staticLibName :: FilePath
-staticLibName = "libglfw.a"
+install_name_tool :: Verbosity -> FilePath -> IO ()
+install_name_tool v fp = rawSystemExit v "env" $
+  ["install_name_tool"] ++ ["-id"] ++ [fp] ++ [fp]
 
 dynamicLibName :: FilePath
 dynamicLibName = "libglfw.dylib"