diff --git a/configuration/configure.ac b/configuration/configure.ac
index e8fba7c..581c60c 100644
--- a/configuration/configure.ac
+++ b/configuration/configure.ac
@@ -106,6 +106,9 @@
 AC_PATH_PROG(DATE, date)
 AC_PATH_PROG(EXPR, expr)
 AC_PATH_PROG(BASENAME, basename)
+AC_PATH_PROG(ZIP, zip)
+AC_PATH_PROG(UNZIP, unzip)
+AC_PATH_PROG(GIT, git)
 
 dnl Java stuff.
 AC_PROG_JAVA