added #!/bin/bash instead #!/bin/sh

scripts/zlib.sh

@@ -1,22 +1,25 @@
-#!/bin/sh
+#!/bin/bash
 
 . ./scripts/colors.sh
 . ./scripts/funcs.sh
 . ./scripts/config.sh
 
+pkgname=zlib
+pkgver=1.3.1
+
 zlib() {
-    printf "$GREEN** Building and installing zlib\n$RESET"
-    mkdir $build/zlib
-    cd $build/zlib
-    tar -xvf $root/downloads/zlib-1.3.1.tar.gz
-    check $? "Extract zlib"
-    cd zlib-1.3.1
+    printf "$GREEN** Building and installing ${pkgname}\n$RESET"
+    mkdir $build/${pkgname}
+    cd $build/${pkgname}
+    tar -xvf $root/downloads/${pkgname}-${pkgver}.tar.gz
+    check $? "Extract ${pkgname}"
+    cd ${pkgname}-${pkgver}
     CC=${CROSS_COMPILE}-gcc ./configure --prefix=/usr --shared
-    check $? "Configure zlib"
+    check $? "Configure ${pkgname}"
     make $makeflags
-    check $? "Build zlib"
+    check $? "Build ${pkgname}"
     make DESTDIR=$rootfspath install
     rm -rv $rootfspath/usr/include $rootfspath/usr/share/man $rootfspath/usr/lib/{pkgconfig,libz.a}
-    ${CROSS_COMPILE}-strip --strip-unneeded $rootfspath/usr/lib/libz.so.1.3.1
-    check $? "Installing to rootfs zlib"
+    ${CROSS_COMPILE}-strip --strip-unneeded $rootfspath/usr/lib/libz.so.${pkgver}
+    check $? "Installing to rootfs ${pkgname}"
 }