diff --git a/lz4/PKGBUILD b/lz4/PKGBUILD
index 62b4b89..2b28da1 100644
--- a/lz4/PKGBUILD
+++ b/lz4/PKGBUILD
@@ -8,47 +8,47 @@
 pkgname=lz4
 epoch=1
 pkgver=1.9.4
-pkgrel=01
+pkgrel=02
 pkgdesc='Extremely fast compression algorithm'
 #url='http://www.lz4.org/'
 url='https://lz4.github.io/lz4/'
-makedepends=('git' 'gcc')
+makedepends=('git' 'cmake' 'ninja')
 checkdepends=('diffutils')
 depends=('glibc')
 source=("git+https://github.com/lz4/lz4.git#tag=v$pkgver")
 
-prepare() {
-  cd $pkgname
-  # apply patch from the source array (should be a pacman feature)
-  local src
-  for src in "${source[@]}"; do
-    src="${src%%::*}"
-    src="${src##*/}"
-    [[ $src = *.patch ]] || continue
-    msg2 "Applying patch $src..."
-    patch -Np1 < "../$src"
-  done
-}
+#prepare() {
+#  cd $pkgname
+#  # apply patch from the source array (should be a pacman feature)
+#  local src
+#  for src in "${source[@]}"; do
+#    src="${src%%::*}"
+#    src="${src##*/}"
+#    [[ $src = *.patch ]] || continue
+#    msg2 "Applying patch $src..."
+#    patch -Np1 < "../$src"
+#  done
+#}
 
 build() {
-  # do not use the main makefile, it calls sub make with -e
-  # exported CLFAGS by makepkg break the version. see FS#50071
-  cd $pkgname
-  make -C lib PREFIX=/usr
-  make -C programs PREFIX=/usr lz4 lz4c
+  cmake -B build -S "$pkgname"/build/cmake \
+    -G Ninja \
+    -DCMAKE_BUILD_TYPE='None' \
+    -DCMAKE_INSTALL_PREFIX='/usr' \
+    -Wno-dev
+  cmake --build build
 }
 
 check() {
   rm -f passwd.lz4
-  $pkgname/programs/lz4 /etc/passwd passwd.lz4
-  $pkgname/programs/lz4 -d passwd.lz4 passwd
+  build/lz4 /etc/passwd passwd.lz4
+  build/lz4 -d passwd.lz4 passwd
   diff -q /etc/passwd passwd
   rm passwd
 }
 
 package() {
-  cd $pkgname
-  make install PREFIX=/usr DESTDIR="$pkgdir"
+  DESTDIR="$pkgdir" cmake --install build
 }
 
 #---- arch license gpg-key & sha256sums ----
@@ -59,9 +59,10 @@ license=('GPL2')
 
 sha256sums=(SKIP)
 
-
-
 # Note to packager: 
-ls -l *pkg.tar.lz 
-echo "you must rename this package to meet SF naming before you move to the repo"
-mv $(ls -l $pkgname*pkg.tar.lz) $pkgname-$epoch_$pkgver-$pkgrel-$arch.pkg.tar.lz >pkg-mv.log
+#ls -l *pkg.tar.lz 
+#echo "you must rename this package to meet SF naming before you move to the repo"
+#mv $(ls -l $pkgname*pkg.tar.lz) $pkgname-$epoch_$pkgver-$pkgrel-$arch.pkg.tar.lz >pkg-mv.log
+
+##  c87b197b2531332824b5b001b1761d6878c96b157a8d2e7ed3901918b5c9c092  lz4-1_1.9.4-02-x86_64.pkg.tar.lz
+
diff --git a/lz4/PKGBUILD-arch b/lz4/PKGBUILD-arch
index 0815bd7..9697b17 100644
--- a/lz4/PKGBUILD-arch
+++ b/lz4/PKGBUILD-arch
@@ -3,49 +3,36 @@
 pkgname=lz4
 epoch=1
 pkgver=1.9.4
-pkgrel=1
+pkgrel=2
 pkgdesc='Extremely fast compression algorithm'
 arch=('x86_64')
 url='https://lz4.github.io/lz4/'
 license=('GPL2')
-makedepends=('git')
+makedepends=('git' 'cmake' 'ninja')
 checkdepends=('diffutils')
 depends=('glibc')
 source=("git+https://github.com/lz4/lz4.git#tag=v$pkgver")
 sha256sums=('SKIP')
 
-prepare() {
-  cd $pkgname
-  # apply patch from the source array (should be a pacman feature)
-  local src
-  for src in "${source[@]}"; do
-    src="${src%%::*}"
-    src="${src##*/}"
-    [[ $src = *.patch ]] || continue
-    msg2 "Applying patch $src..."
-    patch -Np1 < "../$src"
-  done
-}
-
 build() {
-  # do not use the main makefile, it calls sub make with -e
-  # exported CLFAGS by makepkg break the version. see FS#50071
-  cd $pkgname
-  make -C lib PREFIX=/usr
-  make -C programs PREFIX=/usr lz4 lz4c
+  cmake -B build -S "$pkgname"/build/cmake \
+    -G Ninja \
+    -DCMAKE_BUILD_TYPE='None' \
+    -DCMAKE_INSTALL_PREFIX='/usr' \
+    -Wno-dev
+  cmake --build build
 }
 
 check() {
   rm -f passwd.lz4
-  $pkgname/programs/lz4 /etc/passwd passwd.lz4
-  $pkgname/programs/lz4 -d passwd.lz4 passwd
+  build/lz4 /etc/passwd passwd.lz4
+  build/lz4 -d passwd.lz4 passwd
   diff -q /etc/passwd passwd
   rm passwd
 }
 
 package() {
-  cd $pkgname
-  make install PREFIX=/usr DESTDIR="$pkgdir"
+  DESTDIR="$pkgdir" cmake --install build
 }
 
 # vim:set ts=2 sw=2 et:
diff --git a/lz4/deps b/lz4/deps
index f4099d9..4cf8ee2 100644
--- a/lz4/deps
+++ b/lz4/deps
@@ -1,3 +1,5 @@
 git
+cmake
+ninja