$OpenBSD$
Index: configure
--- configure.orig
+++ configure
@@ -534,9 +534,9 @@ if ! pkg-config --exists zlib; then
   rm -f compat/gen_zlib_pc
 fi
 
-printf "Checking for zlib (>= 1.2.5.2)... "
+printf "Checking for zlib (>= 1.2.3)... "
 have_zlib=0
-if pkg-config --atleast-version=1.2.5.2 zlib; then
+if pkg-config --atleast-version=1.2.3 zlib; then
     printf "Yes.\n"
     have_zlib=1
     zlib_cflags=$(pkg-config --cflags zlib)
