$NetBSD: patch-configure,v 1.2 2018/01/25 10:38:57 jperkin Exp $

Use system zlib for linking.
Add rpath.
Use correct install_name with path on Darwin.

--- configure.orig	2017-10-04 08:54:03.000000000 +0000
+++ configure
@@ -3742,7 +3742,7 @@ CFLAGSAUX_STANDARDTMP="\$(CFLAGS_STANDAR
 CFLAGSAUX_DEBUGTMP="\$(CFLAGS_DEBUG)"
 CFLAGSAUX_PROFILETMP="\$(CFLAGS_PROFILE)"
 LDFLAGSAUXTMP="\$(LDFLAGS)"
-AUXEXTRALIBSTMP="\$(EXTRALIBS)"
+AUXEXTRALIBSTMP="\$(EXTRALIBS) -lz"
 
 
 # purposefully do not include "help" output for this
@@ -4356,9 +4356,7 @@ else
         SunOS)
         CC_OPT_FLAGS_TO_TRY="-O2"
         # the trailing space is required!
-        if test $ac_cv_c_compiler_gnu = no; then
-            SET_DT_SONAME="-h "
-        fi
+        SET_DT_SONAME="-h,"
         if test $ac_cv_c_compiler_gnu = yes; then
             CC_OPT_FLAGS_TO_TRY="-O2"
             CC_DBG_FLAGS_TO_TRY="-gdwarf-2 -g3 -O0"
@@ -6705,7 +6703,7 @@ fi
 fi
 
 if test x$with_libpaper != xno; then
-    LIBS="$LIBS -lpaper"
+    LIBS="$LIBS -L${LPLIBDIR} -Wl,-R${LPLIBDIR} -lpaper"
 
 $as_echo "#define USE_LIBPAPER 1" >>confdefs.h
 
@@ -10047,9 +10045,9 @@ else
       SO_LIB_EXT=".so"
     ;;
     Darwin*)
-      GS_DYNAMIC_LDFLAGS="-dynamiclib -install_name \$(GS_SONAME_MAJOR_MINOR)"
-      PCL_DYNAMIC_LDFLAGS="-dynamiclib -install_name \$(PCL_SONAME_MAJOR_MINOR)"
-      XPS_DYNAMIC_LDFLAGS="-dynamiclib -install_name \$(XPS_SONAME_MAJOR_MINOR)"
+      GS_DYNAMIC_LDFLAGS="-dynamiclib -install_name \$(DESTDIR)\$(libdir)/\$(GS_SONAME_MAJOR_MINOR)"
+      PCL_DYNAMIC_LDFLAGS="-dynamiclib -install_name \$(DESTDIR)\$(libdir)/\$(PCL_SONAME_MAJOR_MINOR)"
+      XPS_DYNAMIC_LDFLAGS="-dynamiclib -install_name \$(DESTDIR)\$(libdir)/\$(XPS_SONAME_MAJOR_MINOR)"
       DYNAMIC_LIBS=""
       SO_LIB_EXT=".dylib"
     ;;
@@ -10059,9 +10057,9 @@ else
       else
         DYNAMIC_CFLAGS="-KPIC"
       fi
-      GS_DYNAMIC_LDFLAGS="-G -shared -Wl,\$(LD_SET_DT_SONAME)\$(LDFLAGS_SO_PREFIX)\$(GS_SONAME_MAJOR)"
-      PCL_DYNAMIC_LDFLAGS="-G -shared -Wl,\$(LD_SET_DT_SONAME)\$(LDFLAGS_SO_PREFIX)\$(PCL_SONAME_MAJOR)"
-      XPS_DYNAMIC_LDFLAGS="-G -shared -Wl,\$(LD_SET_DT_SONAME)\$(LDFLAGS_SO_PREFIX)\$(XPS_SONAME_MAJOR)"
+      GS_DYNAMIC_LDFLAGS="-shared -Wl,\$(LD_SET_DT_SONAME)\$(LDFLAGS_SO_PREFIX)\$(GS_SONAME_MAJOR)"
+      PCL_DYNAMIC_LDFLAGS="-shared -Wl,\$(LD_SET_DT_SONAME)\$(LDFLAGS_SO_PREFIX)\$(PCL_SONAME_MAJOR)"
+      XPS_DYNAMIC_LDFLAGS="-shared -Wl,\$(LD_SET_DT_SONAME)\$(LDFLAGS_SO_PREFIX)\$(XPS_SONAME_MAJOR)"
       DYNAMIC_LIBS=""
       SO_LIB_EXT=".so"
       ;;