diff --git a/g/GSL/GSL-2.5-GCC-6.3.0-2.27.eb b/g/GSL/GSL-2.5-GCC-6.3.0-2.27.eb
new file mode 100644
index 00000000..627e24d5
--- /dev/null
+++ b/g/GSL/GSL-2.5-GCC-6.3.0-2.27.eb
@@ -0,0 +1,20 @@
+easyblock = 'ConfigureMake'
+
+name = 'GSL'
+version = '2.5'
+
+homepage = 'http://www.gnu.org/software/gsl/'
+
+description = """
+ The GNU Scientific Library (GSL) is a numerical library for C and C++
+ programmers.  The library provides a wide range of mathematical routines
+ such as random number generators, special functions and least-squares fitting.
+"""
+
+toolchain = {'name': 'GCC', 'version': '6.3.0-2.27'}
+toolchainopts = {'unroll': True, 'pic': True}
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCELOWER_TAR_GZ]
+
+moduleclass = 'numlib'
diff --git a/g/GSL/GSL-2.5-intel-2017c.eb b/g/GSL/GSL-2.5-intel-2017c.eb
new file mode 100644
index 00000000..fd0b4bbd
--- /dev/null
+++ b/g/GSL/GSL-2.5-intel-2017c.eb
@@ -0,0 +1,24 @@
+easyblock = 'ConfigureMake'
+
+name = 'GSL'
+version = '2.5'
+
+homepage = 'http://www.gnu.org/software/gsl/'
+
+description = """
+ The GNU Scientific Library (GSL) is a numerical library for C and C++
+ programmers.  The library provides a wide range of mathematical routines
+ such as random number generators, special functions and least-squares fitting.
+"""
+
+toolchain = {'name': 'intel', 'version': '2017c'}
+toolchainopts = {'unroll': True, 'pic': True}
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCELOWER_TAR_GZ]
+
+builddependencies = [
+    ('binutils', '2.27', '-GCCcore-6.3.0', True),
+]
+
+moduleclass = 'numlib'