diff --git a/f/flex/flex-2.6.4.eb b/f/flex/flex-2.6.4.eb
new file mode 100644
index 00000000..b4cc8821
--- /dev/null
+++ b/f/flex/flex-2.6.4.eb
@@ -0,0 +1,16 @@
+name = 'flex'
+version = '2.6.4'
+
+homepage = 'http://flex.sourceforge.net/'
+description = """Flex (Fast Lexical Analyzer) is a tool for generating scanners. A scanner, 
+ sometimes called a tokenizer, is a program which recognizes lexical patterns in text."""
+
+toolchain = {'name': 'dummy', 'version': ''}
+toolchainopts = {'pic': True}
+
+sources = [SOURCELOWER_TAR_GZ]
+source_urls = ['http://prdownloads.sourceforge.net/%(namelower)s']
+
+dependencies = [('Bison', '3.0.4')]
+
+moduleclass = 'lang'
diff --git a/o/Octave/Octave-4.2.1-intel-2017a.eb b/o/Octave/Octave-4.2.1-intel-2017a.eb
new file mode 100644
index 00000000..922fd3ed
--- /dev/null
+++ b/o/Octave/Octave-4.2.1-intel-2017a.eb
@@ -0,0 +1,65 @@
+easyblock = 'ConfigureMake'
+
+name = 'Octave'
+version = '4.2.1'
+
+homepage = 'http://www.gnu.org/software/octave/'
+description = """GNU Octave is a high-level interpreted language, primarily intended for numerical computations."""
+
+toolchain = {'name': 'intel', 'version': '2017a'}
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCELOWER_TAR_GZ]
+
+patches = ['%(name)s-%(version)s_intel.patch']
+
+builddependencies = [
+    ('Bison', '3.0.4', '', True),
+    ('flex', '2.6.4', '', True),
+    ('Autotools', '20150215', '', True),
+    ('libtool', '2.4.6', '', True),
+    ('gperf', '3.0.4'),
+]
+
+dependencies = [
+    ('X11', '20170314', '', True),
+    ('PCRE', '8.40', '', True),
+    ('ncurses', '6.0', '', True),
+    ('libreadline', '7.0', '', True),
+    ('arpack-ng', '3.5.0'),
+    ('cURL', '7.53.1', '', True),
+    ('FLTK', '1.3.4'),
+    ('fontconfig', '2.12.1', '-libpng-1.6.29', True),
+    ('freetype', '2.7.1', '-libpng-1.6.29', True),
+    ('GLPK', '4.61'),
+    ('GL2PS', '1.4.0'),
+    ('gnuplot', '5.0.6'),
+    ('Java', '1.8.0_121', '', True),
+    ('zlib', '1.2.11', '', True),
+    ('Mesa', '17.0.2'),
+    ('libGLU', '9.0.0', '', True),
+    ('Qhull', '2015.2'),
+    ('Qt5', '5.8.0', '', ('GCC', '6.3.0-2.27')),
+    ('HDF5', '1.8.18', '-serial'),
+    ('qrupdate', '1.1.2'),
+    ('SuiteSparse', '4.5.5', '-METIS-5.1.0'),
+    ('GraphicsMagick', '1.3.25'),
+    ('FFTW', '3.3.6'),
+]
+
+configopts = 'MOC=$EBROOTQT5/bin/moc '
+configopts += 'UIC=$EBROOTQT5/bin/uic '
+configopts += 'RCC=$EBROOTQT5/bin/rcc '
+configopts += 'LRELEASE=$EBROOTQT5/bin/lrelease '
+configopts += '--with-blas="$LIBBLAS" --with-lapack="$LIBLAPACK" --disable-docs '
+# correct for both GCC and Intel compilers
+configopts += '--enable-fortran-calling-convention=gfortran'
+
+sanity_check_paths = {
+    'files': ['bin/octave'],
+    'dirs': []
+}
+
+sanity_check_commands = [('octave', '--eval "1+2"')]
+
+moduleclass = 'math'