fix(main/zlib): enable shared library support again and fix relocation issues for static lib

Fixes 2 issues:

1. libz.so.* now available again in zlib package
2. Linking with libz.a works properly

packages/zlib/build.sh

@@ -3,7 +3,7 @@ TERMUX_PKG_DESCRIPTION="Compression library implementing the deflate compression
 TERMUX_PKG_LICENSE="ZLIB"
 TERMUX_PKG_MAINTAINER="@termux"
 TERMUX_PKG_VERSION=1.3
-TERMUX_PKG_REVISION=2
+TERMUX_PKG_REVISION=3
 TERMUX_PKG_SRCURL=https://www.zlib.net/zlib-$TERMUX_PKG_VERSION.tar.xz
 TERMUX_PKG_SHA256=8a9ba2898e1d0d774eca6ba5b4627a11e5588ba85c8851336eb38de4683050a7
 TERMUX_PKG_BREAKS="ndk-sysroot (<< 19b-3), zlib-dev"
@@ -14,8 +14,15 @@ termux_step_pre_configure() {
 		CFLAGS+=" -march=armv8-a+crc"
 		CXXFLAGS+=" -march=armv8-a+crc"
 	fi
+
+	# Fix relocation issues when linking with libz.a
+	CFLAGS+=" -fPIC"
+	CXXFLAGS+=" -fPIC"
+
+	# Fix linker script error for zlib 1.3
+	LDFLAGS+=" -Wl,--undefined-version"
 }
 
 termux_step_configure() {
-	"$TERMUX_PKG_SRCDIR/configure" --prefix=$TERMUX_PREFIX
+	"$TERMUX_PKG_SRCDIR/configure" --prefix=$TERMUX_PREFIX --shared
 }

packages/zlib/force-support-shared-library.patch

@@ -0,0 +1,12 @@
+diff -uNr zlib-1.3/configure zlib-1.3.mod/configure
+--- zlib-1.3/configure	2023-08-18 11:45:36.000000000 +0300
++++ zlib-1.3.mod/configure	2023-11-29 01:51:17.924387123 +0200
+@@ -438,7 +438,7 @@
+ extern int getchar();
+ int hello() {return getchar();}
+ EOF
+-if test $shared -eq 1; then
++if false; then
+   echo Checking for shared library support... | tee -a configure.log
+   # we must test in two steps (cc then ld), required at least on SunOS 4.x
+   if try $CC -w -c $SFLAGS $test.c &&