Merge branch 'it4i-anselm'

s/Singularity/Singularity-3.1.0.eb

+# IT4Innovations 2019
+
+easyblock = 'ConfigureMake'
+
+name = 'Singularity'
+version = '3.1.0'
+
+homepage = 'https://github.com/sylabs/singularity'
+description = "Singularity is an open source container platform designed to be simple, fast, and secure. Singularity is optimized for EPC and HPC workloads, allowing untrusted users to run untrusted containers in a trusted way."
+
+toolchain = {'name': 'dummy', 'version': ''}
+
+sources = [{
+    'source_urls': ['https://github.com/sylabs/singularity/releases/download/v3.1.0/'],
+    'filename': 'singularity-3.1.0.tar.gz',
+    'extract_cmd': "mkdir -p src/github.com/sylabs/singularity && tar xfvz %s -C src/github.com/sylabs/singularity --strip-components=1",
+}]
+
+builddependencies = [
+        ('Go', '1.11.1'),
+]
+
+dependencies = [
+        ('squashfs-tools', '4.3'),
+]
+
+skipsteps = ['configure']
+
+prebuildopts = "export GOPATH=%(builddir)s && "
+prebuildopts += "./mconfig --prefix=%(installdir)s && "
+prebuildopts += "cd ./builddir && "
+preinstallopts = "cd ./builddir && "
+
+postinstallcmds = [
+        'echo "mksquashfs path = /apps/all/squashfs-tools/4.3/bin" >> %(installdir)s/etc/singularity/singularity.conf',
+]
+
+sanity_check_paths = {
+    'files': ['bin/singularity'],
+    'dirs': ['bin', 'etc', 'libexec', 'var'],
+}
+
+moduleclass = 'tools'

s/squashfs-tools/squashfs-tools-4.3.eb

+# IT4Innovations 2019
+
 easyblock = 'ConfigureMake'
 
 name = 'squashfs-tools'