From 61c20254ec8c59b60639c5b64bc53d83cf73fd06 Mon Sep 17 00:00:00 2001
From: Akira TAGOH <akira@tagoh.org>
Date: Feb 05 2013 06:05:19 +0000
Subject: Use AM_MISSING_PROG instead of hardcoding missing


---

diff --git a/ChangeLog b/ChangeLog
deleted file mode 100644
index e69de29..0000000
--- a/ChangeLog
+++ /dev/null
diff --git a/Makefile.am b/Makefile.am
index 0da0e1a..0ae9346 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -25,18 +25,21 @@ MAINTAINERCLEANFILES =		\
 	$(srcdir)/mkinstalldirs	\
 	$(NULL)
 #
-dist-hook:
-	@if test -d "$(srcdir)/.git";					\
-	then								\
-		echo Creating ChangeLog &&				\
-		( cd "$(top_srcdir)" &&					\
-		  echo '# Generated by Makefile. Do not edit.'; echo;	\
-		  $(top_srcdir)/missing --run git log --stat) > ChangeLog.tmp	\
-		&& mv -f ChangeLog.tmp $(top_distdir)/ChangeLog		\
-		|| ( rm -f ChangeLog.tmp;				\
-		     echo Failed to generate ChangeLog >&2 );		\
-	else								\
-		echo A git clone is required to generate a ChangeLog >&2;	\
+ChangeLog: $(srcdir)/ChangeLog
+$(srcdir)/ChangeLog:
+	$(AM_V_GEN) if test -d "$(srcdir)/.git"; then		\
+	(GIT_DIR=$(top_srcdir)/.git $(GIT) log --stat) |	\
+	fmt --split-only > $@.tmp				\
+	&& mv -f $@.tmp $@					\
+	|| ($(RM) $@.tmp;					\
+	    echo Failed to generate ChangeLog.  your ChangeLog may be outdated >&2;	\
+	    (test -f $@ || echo git-log is required to generate this file >> $@));	\
+	else							\
+	  test -f $@ ||						\
+	  (echo A git checkout and git-log is required to generate ChangeLog >&2 &&	\
+	   echo A git checkout and git-log is required to generate this file >> $@);	\
 	fi
 
+.PHONY: $(srcdir)/ChangeLog
+
 -include $(top_srcdir)/git.mk
diff --git a/configure.ac b/configure.ac
index 53457d3..55b7968 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,6 +30,7 @@ CXXFLAGS="$CXXFLAGS $WARN_CXXFLAGS"
 dnl ======================================================================
 dnl define variables
 dnl ======================================================================
+AM_MISSING_PROG([GIT], [git])
 
 dnl ======================================================================
 dnl functions testing