diff --git a/srcpkgs/sisl/patches/maxdouble.patch b/srcpkgs/sisl/patches/maxdouble.patch
new file mode 100644
index 00000000000..e1506e6ffa9
--- /dev/null
+++ b/srcpkgs/sisl/patches/maxdouble.patch
@@ -0,0 +1,11 @@
+--- include/sislP.h.orig
++++ include/sislP.h
+@@ -362,7 +362,7 @@ enum
+
+ #if defined(SISL_INTERNAL)
+ #ifndef HUGE
+-#define HUGE          MAXDOUBLE
++#define HUGE          DBL_MAX
+ #endif
+
+ /* Storage classes. Used in space allocation.  */
diff --git a/srcpkgs/sisl/template b/srcpkgs/sisl/template
new file mode 100644
index 00000000000..1fdf40b02db
--- /dev/null
+++ b/srcpkgs/sisl/template
@@ -0,0 +1,16 @@
+# Template file for 'sisl'
+pkgname=sisl
+version=4.6.0
+revision=1
+wrksrc="SISL-SISL-${version}"
+build_style=cmake
+short_desc="SINTEF Spline Library"
+maintainer="Florian Anderiasch <fa@art-core.org>"
+license="AGPL-3.0-only"
+homepage="https://github.com/SINTEF-Geometry/SISL"
+distfiles="$homepage/archive/SISL-$version.tar.gz"
+checksum=b207fe6b4b20775e3064168633256fddd475ff98573408f6f5088a938c086f86
+
+post_install() {
+	vlicense COPYING
+}