$NetBSD: patch-ab,v 1.2 2015/07/21 21:36:41 markd Exp $

--- configure.in.orig	2014-10-30 14:07:58.000000000 +0000
+++ configure.in
@@ -157,6 +157,7 @@ AC_SUBST(IMGLIBNAME)
 AC_SUBST(CAIROLIBNAME)
 AC_SUBST(LIBEXT)
 AC_SUBST(LIBNAME)
+AC_SUBST(LIBTOOL)
 AC_SUBST(LINKFLTK)
 AC_SUBST(LINKFLTKFORMS)
 AC_SUBST(LINKFLTKGL)
@@ -185,6 +186,15 @@ fi
 AC_ARG_ENABLE(gl, [  --enable-gl             turn on OpenGL support [[default=yes]]])
 
 AC_ARG_ENABLE(shared, [  --enable-shared         turn on shared libraries [[default=no]]])
+AC_ARG_ENABLE(libtool, [  --enable-libtool=LIBTOOL_PATH
+                          turn on building with libtool [default=no]],[
+if eval "test x$enable_libtool != xno"; then
+    LIBTOOL="$enable_libtool"
+    enable_shared=no
+else
+    LIBTOOL=""
+fi])
+
 if test x$enable_shared = xyes; then
     PICFLAG=1
     SHAREDSUFFIX=""
@@ -358,6 +368,21 @@ else
     LINKSHARED="$LINKFLTKCAIRO ../lib/libfltk_images.a ../lib/libfltk_forms.a ../lib/libfltk.a"
 fi
 
+if test "x$LIBTOOL" != "x"; then
+    LINKFLTK="../src/libfltk.la"
+    if test "x$LINKFLTKGL" != "x"; then    
+        LINKFLTKGL="../src/libfltk_gl.la"    
+    fi    
+    if test "x$LINKFLTKIMG" != "x"; then    
+        LINKFLTKIMG="../src/libfltk_images.la"    
+    fi
+    LINKSHARED="-lfltk_images -lfltk_forms -lfltk"
+    DSONAME="libfltk.la"
+    FLDSONAME="libfltk_forms.la"
+    GLDSONAME="libfltk_gl.la"
+    IMGDSONAME="libfltk_images.la"
+fi
+  
 AC_SUBST(DSOCOMMAND)
 AC_SUBST(DSOFLAGS)
 AC_SUBST(DSOLINK)