Add README in m4 to keep directory in git

This is to work around a bug in autotools. The m4 directory needs to be present before `autoreconf` is run in `bootstrap`.
jonls · Nov 23, 2014 · d836c44 · d836c44
1 parent 2002d6b
commit d836c44
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diff --git a/.gitignore b/.gitignore
@@ -44,7 +44,7 @@ Makefile.in
 /depcomp
 /install-sh
 /ltmain.sh
-/m4
+/m4/*.m4
 /missing
 /stamp-h1
 /config.guess

diff --git a/m4/README b/m4/README
@@ -0,0 +1,3 @@
+This README is here so that git will keep the m4 directory.
+The m4 directory must be here to work around a bug in autotools
+where autoreconf fails if it is not present.