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-rw-r--r--Makefile.in5
1 files changed, 4 insertions, 1 deletions
diff --git a/Makefile.in b/Makefile.in
index 6ec07a64c6..3cb24bf097 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -2,5 +2,8 @@
 
 srcdir = @srcdir@
 
+# Uncomment the line below if you want to do parallel build.
+# PARALLELMFLAGS = -j 4
+
 all .DEFAULT:
-	$(MAKE) -C $(srcdir) objdir=`pwd` $@
+	$(MAKE) PARALLELMFLAGS="$(PARALLELMFLAGS)" -C $(srcdir) objdir=`pwd` $@