From 259cc022609d1377b95f05718a9920e5de12d89d Mon Sep 17 00:00:00 2001
From: George Hartzell <hartzell@alerce.com>
Date: Wed, 29 Mar 2017 12:20:37 -0700
Subject: [PATCH] htslib depends_on version must match samtools (#3625)

---
 var/spack/repos/builtin/packages/samtools/package.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/var/spack/repos/builtin/packages/samtools/package.py b/var/spack/repos/builtin/packages/samtools/package.py
index 0793f8d9a1..a616725068 100644
--- a/var/spack/repos/builtin/packages/samtools/package.py
+++ b/var/spack/repos/builtin/packages/samtools/package.py
@@ -38,7 +38,9 @@ class Samtools(Package):
     version('1.2', '988ec4c3058a6ceda36503eebecd4122')
 
     depends_on("ncurses")
-    depends_on("htslib", when='@1.3.1:')  # htslib became standalone
+    # htslib became standalone @1.3.1, must use corresponding version
+    depends_on("htslib@1.4",   when='@1.4')
+    depends_on("htslib@1.3.1", when='@1.3.1')
     depends_on('zlib', when='@1.2')       # needed for builtin htslib
 
     def install(self, spec, prefix):
-- 
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