diff --git a/core-mod/core/libisl/build b/core-mod/core/libisl/build
index a86afce..17fcd47 100755
--- a/core-mod/core/libisl/build
+++ b/core-mod/core/libisl/build
@@ -2,7 +2,7 @@
 
 #autoupdate
 
-#./autogen.sh
+./autogen.sh
 
 ./configure \
    --prefix=/usr
diff --git a/core-mod/core/libisl/build~ b/core-mod/core/libisl/build~
new file mode 100755
index 0000000..a86afce
--- /dev/null
+++ b/core-mod/core/libisl/build~
@@ -0,0 +1,11 @@
+#!/bin/sh -e
+
+#autoupdate
+
+#./autogen.sh
+
+./configure \
+   --prefix=/usr
+
+make
+make DESTDIR="$1" install
diff --git a/core-mod/core/libisl/checksums b/core-mod/core/libisl/checksums
index 8dce1be..ebeee7c 100644
--- a/core-mod/core/libisl/checksums
+++ b/core-mod/core/libisl/checksums
@@ -1 +1 @@
-043105cc544f416b48736fff8caf077fb0663a717d06b1113f16e391ac99ebad
+63eda93f0a79d812a5f051fa57279b8216f32a68204a1a81caa212a392887b7f
diff --git a/core-mod/core/libisl/sources b/core-mod/core/libisl/sources
index 641e755..081490f 100644
--- a/core-mod/core/libisl/sources
+++ b/core-mod/core/libisl/sources
@@ -1 +1 @@
-https://isl.gforge.inria.fr/isl-0.24.tar.xz
+https://github.com/Meinersbur/isl/archive/refs/tags/isl-0.24.tar.gz
diff --git a/core-mod/core/libisl/sources~ b/core-mod/core/libisl/sources~
new file mode 100644
index 0000000..7d82070
--- /dev/null
+++ b/core-mod/core/libisl/sources~
@@ -0,0 +1 @@
+https://github.com/Meinsersbur/isl/archive/refs/tags/isl-0.24.tar.gz
diff --git a/core-mod/core/libisl/version b/core-mod/core/libisl/version
index 2fb73a0..1ec02e2 100644
--- a/core-mod/core/libisl/version
+++ b/core-mod/core/libisl/version
@@ -1 +1 @@
-1 1
+0.24 2
diff --git a/core-mod/core/libisl/version~ b/core-mod/core/libisl/version~
new file mode 100644
index 0000000..2fb73a0
--- /dev/null
+++ b/core-mod/core/libisl/version~
@@ -0,0 +1 @@
+1 1