--- build.xml.orig	2016-06-20 12:40:44 UTC
+++ build.xml
@@ -90,6 +90,7 @@
     <property name="src.home" value="${basedir}/java/src"/>
     <property name="test.home" value="${basedir}/test"/>
     <property name="c.home" value="${basedir}/c"/>
+    <property name="os.type" value="freebsd"/>
 
 
     <!--  ==================== Compilation Control Options ==================== -->
@@ -189,14 +190,8 @@
             description="Compile the JNI shared library">
 
         <mkdir dir="${c.home}/lib"/>
-        <input
-                message="Enter the operating system type: "
-                validargs="aix,beos,freebsd,gcj,hpux,linux,mac_osx,solaris,win32"
-                addproperty="os.type"
-                />
-
         <echo>Compiling the shared library using "Makefile.${os.type}.txt"</echo>
-        <exec executable="make"
+        <exec executable="gmake"
               dir="${c.home}/src"
               output="${c.home}/lib/make.out.txt"
               failonerror="true">