Detect gfrotran/g77 mismatch.

1 files changed, 13 insertions, 1 deletions

diff --git a/numpy/linalg/tests/test_build.py b/numpy/linalg/tests/test_build.py
index ccba19bb1..84784b171 100644
--- a/numpy/linalg/tests/test_build.py
+++ b/numpy/linalg/tests/test_build.py
@@ -3,7 +3,8 @@ import sys
 import re
 
 import numpy as np
-from numpy.testing import TestCase
+from numpy.linalg import lapack_lite
+from numpy.testing import TestCase, dec
 
 class FindDependenciesLdd:
     def __init__(self):
@@ -33,3 +34,14 @@ class FindDependenciesLdd:
                     founds.append(k)
 
         return founds
+
+@dec.skipif(not(sys.platform[:5] == 'linux'), 
+            "Skipping fortran compiler mismatch on non Linux platform")
+def test_f77_mismatch():
+    f = FindDependenciesLdd()
+    deps = f.grep_dependencies(lapack_lite.__file__, 
+                               ['libg2c', 'libgfortran'])
+    if len(deps) > 1:
+        raise AssertionFailure("Both g77 and gfortran runtimes linked in "\
+        "lapack_lite ! This is likely to cause random crashes and wrong "\
+        "results")