Improve compiler configuration in otf2 package

var/spack/packages/otf2/package.py

@@ -1,6 +1,7 @@
 # FIXME: Add copyright
 
 from spack import *
+from contextlib import closing
 import os
 
 class Otf2(Package):
@@ -17,28 +18,57 @@ class Otf2(Package):
     version('1.2.1', '8fb3e11fb7489896596ae2c7c83d7fc8',
             url="http://www.vi-hps.org/upload/packages/otf2/otf2-1.2.1.tar.gz")
 
+    backend_user_provided = """\
+CC=cc
+CXX=c++
+F77=f77
+FC=f90
+CFLAGS=-fPIC
+CXXFLAGS=-fPIC
+"""
+    frontend_user_provided = """\
+CC_FOR_BUILD=cc
+CXX_FOR_BUILD=c++
+F77_FOR_BUILD=f70
+FC_FOR_BUILD=f90
+CFLAGS_FOR_BUILD=-fPIC
+CXXFLAGS_FOR_BUILD=-fPIC
+"""
+    mpi_user_provided = """\
+MPICC=cc
+MPICXX=c++
+MPIF77=f77
+MPIFC=f90
+MPI_CFLAGS=-fPIC
+MPI_CXXFLAGS=-fPIC
+"""
 
     @when('@:1.2')
-    def version_specific_args(self, args):
+    def version_specific_args(self):
         return ["--with-platform=disabled"]
 
     @when('@1.3:')
-    def version_specific_args(self, args):
+    def version_specific_args(self):
         # TODO: figure out what scorep's build does as of otf2 1.3
-        return []
+        return ["--with-custom-compilers"]
-
 
     def install(self, spec, prefix):
-        # FIXME: Modify the configure line to suit your build system here.
+        # Use a custom compiler configuration, otherwise the score-p
-        cc = os.environ["SPACK_CC"]
+        # build system messes with spack's compiler settings.
+        # Create these three files in the build directory
+        with closing(open("platform-backend-user-provided", "w")) as backend_file:
+            backend_file.write(self.backend_user_provided)
+        with closing(open("platform-frontend-user-provided", "w")) as frontend_file:
+            frontend_file.write(self.frontend_user_provided)
+        with closing(open("platform-mpi-user-provided", "w")) as mpi_file:
+            mpi_file.write(self.mpi_user_provided)            
 
         configure_args=["--prefix=%s" % prefix,
-                        "--enable-shared"])
+                        "--enable-shared"]
 
         configure_args.extend(self.version_specific_args())
 
         configure(*configure_args)
 
-        # FIXME: Add logic to build and install here
         make()
         make("install")