From 55796203c4b7fed2206f19938ad7f6478cee4064 Mon Sep 17 00:00:00 2001
From: albestro <9337627+albestro@users.noreply.github.com>
Date: Tue, 30 Jun 2020 18:03:26 +0200
Subject: add constrain for hpx 1.4.* and boost 1.73.0 (#17307)

https://github.com/STEllAR-GROUP/hpx/issues/4728#issuecomment-640685308
---
 var/spack/repos/builtin/packages/hpx/package.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/var/spack/repos/builtin/packages/hpx/package.py b/var/spack/repos/builtin/packages/hpx/package.py
index a8f028b27b..028019864c 100644
--- a/var/spack/repos/builtin/packages/hpx/package.py
+++ b/var/spack/repos/builtin/packages/hpx/package.py
@@ -65,6 +65,10 @@ class Hpx(CMakePackage, CudaPackage):
     depends_on('boost@1.55.0:', when='@:1.1.0')
     depends_on('hwloc@1.6:', when='@:1.1.0')
 
+    # boost 1.73.0 build problem with HPX 1.4.0 and 1.4.1
+    # https://github.com/STEllAR-GROUP/hpx/issues/4728#issuecomment-640685308
+    depends_on('boost@:1.72.0', when='@:1.4')
+
     # CXX Standard
     depends_on('boost cxxstd=11', when='cxxstd=11')
     depends_on('boost cxxstd=14', when='cxxstd=14')
-- 
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