Revert "zlib: use cmake for building zlib library"

This reverts commit 3ba6ca9586afb6d2fe17f0317c5a9f8f03c2888e.

packages/compress/zlib/build

@@ -23,23 +23,8 @@
 . config/options $1
 
 cd $PKG_BUILD
-rm -rf ./zconf.h # as requested from zlib cmake config
-mkdir -p .build-shared && cd .build-shared
-cmake -DCMAKE_TOOLCHAIN_FILE=$CMAKE_CONF \
-      -DCMAKE_INSTALL_PREFIX=/usr \
-      -DBUILD_SHARED_LIBS=on \
-      ..
+./configure --prefix=/usr --shared
 
 make
+
 $MAKEINSTALL
-
-# build static library too, because we need this for plymouth-lite
-cd ..
-mkdir -p .build-static && cd .build-static
-cmake -DCMAKE_TOOLCHAIN_FILE=$CMAKE_CONF \
-      -DCMAKE_INSTALL_PREFIX=/usr \
-      -DBUILD_SHARED_LIBS=off \
-      ..
-
-make
-cp libz.a $SYSROOT_PREFIX/usr/lib

packages/compress/zlib/install

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