- build paraview without qt when osmesa is specified. (#5480)

- new paraview version (5.4.1 from August)

var/spack/repos/builtin/packages/paraview/package.py

@@ -33,6 +33,7 @@ class Paraview(CMakePackage):
     url      = "http://www.paraview.org/files/v5.3/ParaView-v5.3.0.tar.gz"
     _urlfmt  = 'http://www.paraview.org/files/v{0}/ParaView-v{1}{2}.tar.gz'
 
+    version('5.4.1', '4030c70477ec5a85aa72d6fc86a30753')
     version('5.4.0', 'b92847605bac9036414b644f33cb7163')
     version('5.3.0', '68fbbbe733aa607ec13d1db1ab5eba71')
     version('5.2.0', '4570d1a2a183026adb65b73c7125b8b0')
@@ -55,6 +56,9 @@ class Paraview(CMakePackage):
     depends_on('qt', when='@5.3.0:+qt')
     depends_on('qt@:4', when='@:5.2.0+qt')
 
+    depends_on('mesa+swrender', when='+osmesa')
+    conflicts('+qt', when='+osmesa')
+
     depends_on('bzip2')
     depends_on('freetype')
     # depends_on('hdf5+mpi', when='+mpi')