diff --git a/g/gperftools/gperftools-2.7-GCC-6.3.0-2.27.eb b/g/gperftools/gperftools-2.7-GCC-6.3.0-2.27.eb
new file mode 100644
index 00000000..50776bf9
--- /dev/null
+++ b/g/gperftools/gperftools-2.7-GCC-6.3.0-2.27.eb
@@ -0,0 +1,26 @@
+easyblock = 'ConfigureMake'
+
+name = 'gperftools'
+version = '2.7'
+
+homepage = 'http://github.com/gperftools/gperftools'
+description = """gperftools are for use by developers so that they can create more robust applications.
+ Especially of use to those developing multi-threaded applications in C++ with templates.
+ Includes TCMalloc, heap-checker, heap-profiler and cpu-profiler."""
+
+toolchain = {'name': 'GCC', 'version': '6.3.0-2.27'}
+
+source_urls = ['https://github.com/gperftools/gperftools/releases/download/%(namelower)s-%(version)s']
+sources = [SOURCE_TAR_GZ]
+
+dependencies = [('libunwind', '1.2.1', '', True)]
+
+configopts = '--enable-libunwind'
+
+sanity_check_paths = {
+    'files': ['bin/pprof', 'lib/libprofiler.a', 'lib/libprofiler.%s' % SHLIB_EXT,
+              'lib/libtcmalloc.a', 'lib/libtcmalloc.%s' % SHLIB_EXT],
+    'dirs': []
+}
+
+moduleclass = 'tools'
diff --git a/l/LAMMPS/LAMMPS-22Jun2018-intel-2017a.eb b/l/LAMMPS/LAMMPS-22Jun2018-intel-2017a.eb
index 6b078d64..ff405e55 100644
--- a/l/LAMMPS/LAMMPS-22Jun2018-intel-2017a.eb
+++ b/l/LAMMPS/LAMMPS-22Jun2018-intel-2017a.eb
@@ -21,6 +21,7 @@ sources = ['patch_22Jun2018.tar.gz']
 
 dependencies = [
     ('tbb', '2017.6.196', '', True),
+    ('gperftools', '2.7', '', ('GCC','6.3.0-2.27')),
 ]
 
 builddependencies = [
diff --git a/l/libunwind/libunwind-1.2.1.eb b/l/libunwind/libunwind-1.2.1.eb
new file mode 100644
index 00000000..17e7f90d
--- /dev/null
+++ b/l/libunwind/libunwind-1.2.1.eb
@@ -0,0 +1,29 @@
+easyblock = 'ConfigureMake'
+
+name = 'libunwind'
+version = '1.2.1'
+
+homepage = 'http://www.nongnu.org/libunwind/'
+description = """The primary goal of libunwind is to define a portable and efficient C programming interface
+ (API) to determine the call-chain of a program. The API additionally provides the means to manipulate the
+ preserved (callee-saved) state of each call-frame and to resume execution at any point in the call-chain
+ (non-local goto). The API supports both local (same-process) and remote (across-process) operation.
+ As such, the API is useful in a number of applications"""
+
+toolchain = {'name': 'dummy', 'version': ''}
+
+sources = [SOURCE_TAR_GZ]
+source_urls = [GNU_SAVANNAH_SOURCE]
+
+dependencies = [
+    ('XZ', '5.2.3', '', True),
+]
+
+preconfigopts = 'export LIBS="$LIBS -llzma" && '
+
+sanity_check_paths = {
+    'files': ["include/libunwind.h", "lib/libunwind.%s" % SHLIB_EXT],
+    'dirs': []
+}
+
+moduleclass = 'lib'