Author: Sergei Golovan
Description: Patch enables dynamic linking to system-wide zlib.
 It's a Debian-specific hack and isn't supposed to be sent upstream.
Last-Modified: Wed, 31 Jan 2018 11:43:41 +0300

--- a/zlib/Makefile.in
+++ b/zlib/Makefile.in
@@ -158,9 +158,9 @@
 CONFIG_CLEAN_FILES = Makefile
 
 CPPFLAGS	= @CPPFLAGS@
-LIBS		= @PKG_LIBS@ @LIBS@
+LIBS		= @PKG_LIBS@ @LIBS@ -lz
 AR		= @AR@
-CFLAGS		= @CFLAGS@ -DZEXTERN=MODULE_SCOPE -DZLIB_CONST
+CFLAGS		= @CFLAGS@ -DZEXTERN=MODULE_SCOPE -DZLIB_CONST -DMODULE_SCOPE=extern
 COMPILE		= $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 
 .SUFFIXES: .c .$(OBJEXT)
--- a/zlib/configure
+++ b/zlib/configure
@@ -5733,184 +5733,6 @@
     done
 
 
-
-
-    vars="../compat/zlib/adler32.c	../compat/zlib/compress.c	../compat/zlib/crc32.c"
-    for i in $vars; do
-	case $i in
-	    \$*)
-		# allow $-var names
-		PKG_SOURCES="$PKG_SOURCES $i"
-		PKG_OBJECTS="$PKG_OBJECTS $i"
-		;;
-	    *)
-		# check for existence - allows for generic/win/unix VPATH
-		# To add more dirs here (like 'src'), you have to update VPATH
-		# in Makefile.in as well
-		if test ! -f "${srcdir}/$i" -a ! -f "${srcdir}/generic/$i" \
-		    -a ! -f "${srcdir}/win/$i" -a ! -f "${srcdir}/unix/$i" \
-		    -a ! -f "${srcdir}/macosx/$i" \
-		    ; then
-		    as_fn_error $? "could not find source file '$i'" "$LINENO" 5
-		fi
-		PKG_SOURCES="$PKG_SOURCES $i"
-		# this assumes it is in a VPATH dir
-		i=`basename $i`
-		# handle user calling this before or after TEA_SETUP_COMPILER
-		if test x"${OBJEXT}" != x ; then
-		    j="`echo $i | sed -e 's/\.[^.]*$//'`.${OBJEXT}"
-		else
-		    j="`echo $i | sed -e 's/\.[^.]*$//'`.\${OBJEXT}"
-		fi
-		PKG_OBJECTS="$PKG_OBJECTS $j"
-		;;
-	esac
-    done
-
-
-
-
-    vars="../compat/zlib/deflate.c	../compat/zlib/gzclose.c	../compat/zlib/gzlib.c"
-    for i in $vars; do
-	case $i in
-	    \$*)
-		# allow $-var names
-		PKG_SOURCES="$PKG_SOURCES $i"
-		PKG_OBJECTS="$PKG_OBJECTS $i"
-		;;
-	    *)
-		# check for existence - allows for generic/win/unix VPATH
-		# To add more dirs here (like 'src'), you have to update VPATH
-		# in Makefile.in as well
-		if test ! -f "${srcdir}/$i" -a ! -f "${srcdir}/generic/$i" \
-		    -a ! -f "${srcdir}/win/$i" -a ! -f "${srcdir}/unix/$i" \
-		    -a ! -f "${srcdir}/macosx/$i" \
-		    ; then
-		    as_fn_error $? "could not find source file '$i'" "$LINENO" 5
-		fi
-		PKG_SOURCES="$PKG_SOURCES $i"
-		# this assumes it is in a VPATH dir
-		i=`basename $i`
-		# handle user calling this before or after TEA_SETUP_COMPILER
-		if test x"${OBJEXT}" != x ; then
-		    j="`echo $i | sed -e 's/\.[^.]*$//'`.${OBJEXT}"
-		else
-		    j="`echo $i | sed -e 's/\.[^.]*$//'`.\${OBJEXT}"
-		fi
-		PKG_OBJECTS="$PKG_OBJECTS $j"
-		;;
-	esac
-    done
-
-
-
-
-    vars="../compat/zlib/gzread.c	../compat/zlib/gzwrite.c	../compat/zlib/infback.c"
-    for i in $vars; do
-	case $i in
-	    \$*)
-		# allow $-var names
-		PKG_SOURCES="$PKG_SOURCES $i"
-		PKG_OBJECTS="$PKG_OBJECTS $i"
-		;;
-	    *)
-		# check for existence - allows for generic/win/unix VPATH
-		# To add more dirs here (like 'src'), you have to update VPATH
-		# in Makefile.in as well
-		if test ! -f "${srcdir}/$i" -a ! -f "${srcdir}/generic/$i" \
-		    -a ! -f "${srcdir}/win/$i" -a ! -f "${srcdir}/unix/$i" \
-		    -a ! -f "${srcdir}/macosx/$i" \
-		    ; then
-		    as_fn_error $? "could not find source file '$i'" "$LINENO" 5
-		fi
-		PKG_SOURCES="$PKG_SOURCES $i"
-		# this assumes it is in a VPATH dir
-		i=`basename $i`
-		# handle user calling this before or after TEA_SETUP_COMPILER
-		if test x"${OBJEXT}" != x ; then
-		    j="`echo $i | sed -e 's/\.[^.]*$//'`.${OBJEXT}"
-		else
-		    j="`echo $i | sed -e 's/\.[^.]*$//'`.\${OBJEXT}"
-		fi
-		PKG_OBJECTS="$PKG_OBJECTS $j"
-		;;
-	esac
-    done
-
-
-
-
-    vars="../compat/zlib/inffast.c	../compat/zlib/inflate.c	../compat/zlib/inftrees.c"
-    for i in $vars; do
-	case $i in
-	    \$*)
-		# allow $-var names
-		PKG_SOURCES="$PKG_SOURCES $i"
-		PKG_OBJECTS="$PKG_OBJECTS $i"
-		;;
-	    *)
-		# check for existence - allows for generic/win/unix VPATH
-		# To add more dirs here (like 'src'), you have to update VPATH
-		# in Makefile.in as well
-		if test ! -f "${srcdir}/$i" -a ! -f "${srcdir}/generic/$i" \
-		    -a ! -f "${srcdir}/win/$i" -a ! -f "${srcdir}/unix/$i" \
-		    -a ! -f "${srcdir}/macosx/$i" \
-		    ; then
-		    as_fn_error $? "could not find source file '$i'" "$LINENO" 5
-		fi
-		PKG_SOURCES="$PKG_SOURCES $i"
-		# this assumes it is in a VPATH dir
-		i=`basename $i`
-		# handle user calling this before or after TEA_SETUP_COMPILER
-		if test x"${OBJEXT}" != x ; then
-		    j="`echo $i | sed -e 's/\.[^.]*$//'`.${OBJEXT}"
-		else
-		    j="`echo $i | sed -e 's/\.[^.]*$//'`.\${OBJEXT}"
-		fi
-		PKG_OBJECTS="$PKG_OBJECTS $j"
-		;;
-	esac
-    done
-
-
-
-
-    vars="../compat/zlib/trees.c	../compat/zlib/uncompr.c	../compat/zlib/zutil.c"
-    for i in $vars; do
-	case $i in
-	    \$*)
-		# allow $-var names
-		PKG_SOURCES="$PKG_SOURCES $i"
-		PKG_OBJECTS="$PKG_OBJECTS $i"
-		;;
-	    *)
-		# check for existence - allows for generic/win/unix VPATH
-		# To add more dirs here (like 'src'), you have to update VPATH
-		# in Makefile.in as well
-		if test ! -f "${srcdir}/$i" -a ! -f "${srcdir}/generic/$i" \
-		    -a ! -f "${srcdir}/win/$i" -a ! -f "${srcdir}/unix/$i" \
-		    -a ! -f "${srcdir}/macosx/$i" \
-		    ; then
-		    as_fn_error $? "could not find source file '$i'" "$LINENO" 5
-		fi
-		PKG_SOURCES="$PKG_SOURCES $i"
-		# this assumes it is in a VPATH dir
-		i=`basename $i`
-		# handle user calling this before or after TEA_SETUP_COMPILER
-		if test x"${OBJEXT}" != x ; then
-		    j="`echo $i | sed -e 's/\.[^.]*$//'`.${OBJEXT}"
-		else
-		    j="`echo $i | sed -e 's/\.[^.]*$//'`.\${OBJEXT}"
-		fi
-		PKG_OBJECTS="$PKG_OBJECTS $j"
-		;;
-	esac
-    done
-
-
-
-
-
     vars="zlibtcl.h zlibtclDecls.h"
     for i in $vars; do
 	# check for existence, be strict because it is installed
--- a/zlib/configure.ac
+++ b/zlib/configure.ac
@@ -50,11 +50,6 @@
 #-----------------------------------------------------------------------
 
 TEA_ADD_SOURCES([zlibtcl.c zlibtclStubInit.c])
-TEA_ADD_SOURCES([../compat/zlib/adler32.c	../compat/zlib/compress.c	../compat/zlib/crc32.c])
-TEA_ADD_SOURCES([../compat/zlib/deflate.c	../compat/zlib/gzclose.c	../compat/zlib/gzlib.c])
-TEA_ADD_SOURCES([../compat/zlib/gzread.c	../compat/zlib/gzwrite.c	../compat/zlib/infback.c])
-TEA_ADD_SOURCES([../compat/zlib/inffast.c	../compat/zlib/inflate.c	../compat/zlib/inftrees.c])
-TEA_ADD_SOURCES([../compat/zlib/trees.c	../compat/zlib/uncompr.c	../compat/zlib/zutil.c])
 
 TEA_ADD_HEADERS([zlibtcl.h zlibtclDecls.h])
 
--- a/zlib/zlibtclDecls.h
+++ b/zlib/zlibtclDecls.h
@@ -28,7 +28,7 @@
 EXTERN int Zlibtcl_Init(Tcl_Interp *interp);
 EXTERN int Zlibtcl_SafeInit(Tcl_Interp *interp);
 
-#include "../compat/zlib/zlib.h"
+#include "/usr/include/zlib.h"
 
 #undef gzgetc /* Became a macro in zlib 1.2.7 */