Adjust the generation of the library makefile to avoid duplicate libr…

…ary warning

Since Macs seem to object to providing duplicate libraries now, avoid adding it
at the end of the generated makefile compilation line.

----
Signed-off-by: Lydia Duncan <[email protected]>

compiler/codegen/library.cpp

@@ -272,12 +272,8 @@ static void printMakefileLibraries(fileinfo makefile, std::string name) {
     fprintf(makefile.fptr, "%s", requires_.c_str());
   }
 
-  //
-  // Append the Chapel library as the last linker argument. We do this as a
-  // stopgap to make the GNU linker happy.
-  //
   removeTrailingNewlines(libraries);
-  fprintf(makefile.fptr, " %s %s\n\n", libraries.c_str(), libname.c_str());
+  fprintf(makefile.fptr, " %s\n\n", libraries.c_str());
 }
 
 // Helper to convert command lines flags from make syntax to CMake syntax