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-rw-r--r--configure.ac7
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 81dcad2..e5d8431 100644
--- a/configure.ac
+++ b/configure.ac
@@ -79,5 +79,12 @@ PATCH_FUNC_MKDIR_TAKES_ONE_ARG
jm_AC_DOS
AC_SYS_LONG_FILE_NAMES
+AC_ARG_ENABLE([merge],
+ [AS_HELP_STRING([--disable-merge],
+ [disable support for merging])])
+if test "$enableval" != no ; then
+ AC_SUBST(ENABLE_MERGE, 1)
+fi
+
AC_CONFIG_FILES([Makefile])
AC_OUTPUT