From 4b3e43cc64b9c297e4c209919b9aeb09ecf9e6ae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tiziano=20M=C3=BCller?= <tiziano.mueller@chem.uzh.ch>
Date: Fri, 26 Apr 2019 10:27:11 +0200
Subject: [PATCH] packages/cp2k: build with -ggdb with GNU for backtraces

---
 var/spack/repos/builtin/packages/cp2k/package.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/var/spack/repos/builtin/packages/cp2k/package.py b/var/spack/repos/builtin/packages/cp2k/package.py
index 8c1c1a7ffe..646392f5b9 100644
--- a/var/spack/repos/builtin/packages/cp2k/package.py
+++ b/var/spack/repos/builtin/packages/cp2k/package.py
@@ -174,7 +174,11 @@ def edit(self, spec, prefix):
             cxxflags.append('-fp-model precise')
             fcflags.extend(['-fp-model source', '-heap-arrays 64'])
         elif '%gcc' in spec:
-            fcflags.extend(['-ffree-form', '-ffree-line-length-none'])
+            fcflags.extend([
+                '-ffree-form',
+                '-ffree-line-length-none',
+                '-ggdb',  # make sure we get proper Fortran backtraces
+            ])
         elif '%pgi' in spec:
             fcflags.extend(['-Mfreeform', '-Mextend'])
 
-- 
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