zlib: build with cmake

Signed-off-by: Stephan Raue <stephan@openelec.tv>

packages/compress/zlib/build

@@ -23,8 +23,15 @@
 . config/options $1
 
 cd $PKG_BUILD
-./configure --prefix=/usr --shared
+
+# needed for building with cmake
+  rm -rf zconf.h
+
+mkdir -p .build-target && cd .build-target
+
+cmake -DCMAKE_TOOLCHAIN_FILE=$CMAKE_CONF \
+      -DCMAKE_INSTALL_PREFIX=/usr \
+      ..
 
 make
-
 $MAKEINSTALL

packages/compress/zlib/install

@@ -23,4 +23,4 @@
 . config/options $1
 
 mkdir -p $INSTALL/usr/lib
-  cp -R $PKG_BUILD/*.so* $INSTALL/usr/lib
+  cp -R $PKG_BUILD/.build-target/*.so* $INSTALL/usr/lib

packages/initramfs/compress/zlib-initramfs/install

@@ -25,4 +25,4 @@
 ZLIB_DIR="$BUILD/zlib-*"
 
 mkdir -p $INSTALL/lib
-  cp -R $ZLIB_DIR/*.so* $INSTALL/lib
+  cp -R $ZLIB_DIR/.build-target/*.so* $INSTALL/lib