Dependencies now work. Added libelf, libdwarf.

lib/spack/env/c++

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+cc

lib/spack/env/c89

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+cc

lib/spack/env/c99

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+cc

lib/spack/env/case-insensitive/CC

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+../cc

lib/spack/env/cc

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+#!/usr/bin/env python
+import sys
+import os
+import subprocess
+import argparse
+
+def get_path(name):
+    path = os.environ.get(name, "")
+    return path.split(":")
+
+# Import spack parameters through the build environment.
+spack_lib      = os.environ.get("SPACK_LIB")
+spack_deps     = get_path("SPACK_DEPENDENCIES")
+spack_env_path = get_path("SPACK_ENV_PATH")
+if not spack_lib or spack_deps == None:
+    print "%s must be run from spack." % os.path.abspath(sys.argv[0])
+    sys.exit(1)
+
+# Figure out what type of operation we're doing
+command = os.path.basename(sys.argv[0])
+
+# Grab a minimal set of spack packages
+sys.path.append(spack_lib)
+from spack.utils import *
+from spack.compilation import parse_rpaths
+import spack.tty as tty
+
+parser = argparse.ArgumentParser(add_help=False)
+parser.add_argument("-I", action='append', default=[], dest='include_path')
+parser.add_argument("-L", action='append', default=[], dest='lib_path')
+parser.add_argument("-l", action='append', default=[], dest='libs')
+
+options, other_args = parser.parse_known_args()
+rpaths, other_args = parse_rpaths(other_args)
+
+if rpaths:
+    tty.warn("Spack stripping non-spack rpaths: ", *rpaths)
+
+# Find the actual command the build is trying to run by removing
+# Spack's env paths from the path.  We use this later for which()
+script_dir = os.path.dirname(os.path.expanduser(__file__))
+clean_path = get_path("PATH")
+remove_items(clean_path, '.')
+for path in spack_env_path:
+    remove_items(clean_path, path)
+
+# Add dependence's paths to our compiler flags.
+def append_if_dir(path_list, prefix, *dirs):
+    full_path = os.path.join(prefix, *dirs)
+    if os.path.isdir(full_path):
+        path_list.append(full_path)
+
+for prefix in spack_deps:
+    append_if_dir(options.include_path, prefix, "include")
+    append_if_dir(options.lib_path, prefix, "lib")
+    append_if_dir(options.lib_path, prefix, "lib64")
+
+# Add our modified arguments to it.
+cmd = which(command, path=clean_path)
+arguments  = ['-I%s' % path for path in options.include_path]
+arguments += other_args
+arguments += ['-L%s' % path for path in options.lib_path]
+arguments += ['-l%s' % path for path in options.libs]
+
+# Unset some pesky environment variables
+pop_keys(os.environ, "LD_LIBRARY_PATH", "LD_RUN_PATH", "DYLD_LIBRARY_PATH")
+
+rcode = cmd(*arguments, fail_on_error=False)
+sys.exit(rcode)

lib/spack/env/clang

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+cc

lib/spack/env/clang++

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+cc

lib/spack/env/cpp

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+cc

lib/spack/env/g++

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+cc

lib/spack/env/gcc

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+cc

lib/spack/env/ld

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+cc