diff --git a/configure b/configure
index 7d35bc3ceb..6c0bd16b07 100755
--- a/configure
+++ b/configure
@@ -2179,14 +2179,14 @@ else
 
   DEFAULT_wxUSE_GUI=yes
 
-  DEFAULT_wxUSE_REGEX=sys
+  DEFAULT_wxUSE_REGEX=yes
   DEFAULT_wxUSE_XML=yes
-  DEFAULT_wxUSE_EXPAT=sys
-  DEFAULT_wxUSE_ZLIB=sys
-  DEFAULT_wxUSE_LIBPNG=sys
-  DEFAULT_wxUSE_LIBJPEG=sys
-  DEFAULT_wxUSE_LIBTIFF=sys
-  DEFAULT_wxUSE_LIBXPM=sys
+  DEFAULT_wxUSE_EXPAT=yes
+  DEFAULT_wxUSE_ZLIB=yes
+  DEFAULT_wxUSE_LIBPNG=yes
+  DEFAULT_wxUSE_LIBJPEG=yes
+  DEFAULT_wxUSE_LIBTIFF=yes
+  DEFAULT_wxUSE_LIBXPM=yes
   DEFAULT_wxUSE_LIBMSPACK=yes
   DEFAULT_wxUSE_ODBC=no
   DEFAULT_wxUSE_OPENGL=no
diff --git a/configure.in b/configure.in
index 34a7d2007c..61f1156858 100644
--- a/configure.in
+++ b/configure.in
@@ -569,14 +569,14 @@ else
 
   DEFAULT_wxUSE_GUI=yes
 
-  DEFAULT_wxUSE_REGEX=sys
+  DEFAULT_wxUSE_REGEX=yes
   DEFAULT_wxUSE_XML=yes
-  DEFAULT_wxUSE_EXPAT=sys
-  DEFAULT_wxUSE_ZLIB=sys
-  DEFAULT_wxUSE_LIBPNG=sys
-  DEFAULT_wxUSE_LIBJPEG=sys
-  DEFAULT_wxUSE_LIBTIFF=sys
-  DEFAULT_wxUSE_LIBXPM=sys
+  DEFAULT_wxUSE_EXPAT=yes
+  DEFAULT_wxUSE_ZLIB=yes
+  DEFAULT_wxUSE_LIBPNG=yes
+  DEFAULT_wxUSE_LIBJPEG=yes
+  DEFAULT_wxUSE_LIBTIFF=yes
+  DEFAULT_wxUSE_LIBXPM=yes
   DEFAULT_wxUSE_LIBMSPACK=yes
   DEFAULT_wxUSE_ODBC=no
   DEFAULT_wxUSE_OPENGL=no