[openwrt/openwrt] tools/isl: update the download URL

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch openwrt-21.02:
https://git.openwrt.org/a13efd22536e483fe9bbf5668aff2db4ceb91e46

commit a13efd22536e483fe9bbf5668aff2db4ceb91e46
Author: Rui Salvaterra <rsalvaterra at gmail.com>
AuthorDate: Thu Oct 21 20:09:49 2021 +0100

    tools/isl: update the download URL
    
    isl.gforge.inria.fr has been dead since early this month [1]. Switch to
    libisl.sourceforge.io for the time being.
    
    [1] https://groups.google.com/g/isl-development/c/JGaMo2VUu_8
    
    Signed-off-by: Rui Salvaterra <rsalvaterra at gmail.com>
    (cherry picked from commit dd0ad9b661b604163d1736fcfe18714ff47c3728)
---
 tools/isl/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/isl/Makefile b/tools/isl/Makefile
index c1000e1e31..de9051651c 100644
--- a/tools/isl/Makefile
+++ b/tools/isl/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=isl
 PKG_VERSION:=0.20
 
-PKG_SOURCE_URL:=http://isl.gforge.inria.fr
+PKG_SOURCE_URL:=https://libisl.sourceforge.io/
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_HASH:=a5596a9fb8a5b365cb612e4b9628735d6e67e9178fae134a816ae195017e77aa