$OpenBSD: patch-configure_in,v 1.13 2008/02/11 18:13:44 bernd Exp $
--- configure.in.orig	Tue Dec 18 22:34:10 2007
+++ configure.in	Fri Feb  8 13:28:28 2008
@@ -2028,7 +2028,7 @@ case "$target" in
 	;;
 
 *-openbsd*)
-    DLL_SUFFIX=".so.1.0"
+    DLL_SUFFIX=".so.${SO_VERSION}"
     DSO_CFLAGS=''
     DSO_PIC_CFLAGS='-fPIC'
     DSO_LDOPTS='-shared -fPIC'
@@ -3878,7 +3878,7 @@ _SAVE_LIBS=$LIBS
 CFLAGS="$ZLIB_CFLAGS $CFLAGS"
 LDFLAGS="$ZLIB_LIBS -lz $LDFLAGS"
 if test -n "${PNG_DIR}" -a "${PNG_DIR}" != "yes"; then
-    CFLAGS="-I${PNG_DIR}/include $CFLAGS"
+    CFLAGS="-I${PNG_DIR}/include/libpng $CFLAGS"
     LDFLAGS="-L${PNG_DIR}/lib $LDFLAGS"
 fi
 if test -z "$PNG_DIR" -o "$PNG_DIR" = no; then
@@ -3908,7 +3908,7 @@ LDFLAGS=$_SAVE_LDFLAGS
 LIBS=$_SAVE_LIBS
 
 if test "${PNG_DIR}" -a -d "${PNG_DIR}" -a "$SYSTEM_PNG" = 1; then
-    PNG_CFLAGS="-I${PNG_DIR}/include"
+    PNG_CFLAGS="-I${PNG_DIR}/include/libpng"
     PNG_LIBS="-L${PNG_DIR}/lib ${PNG_LIBS}"
 fi