From 98fcd6fa6ca11aeedcb714182ccde2fdfd817fa3 Mon Sep 17 00:00:00 2001
From: "Kevin P. Fleming" <kpfleming@digium.com>
Date: Fri, 1 Aug 2008 21:37:42 +0000
Subject: reduce the amount of recompiling necessary when the version string
 changes

git-svn-id: http://svn.asterisk.org/svn/dahdi/tools/trunk@4646 a0bf4364-ded3-4de4-8d8a-66a801d63aff
---
 Makefile                   | 10 ++++++----
 build_tools/make_version_h |  4 ++--
 dahdi_cfg.c                |  4 ++--
 version.h                  | 22 ++++++++++++++++++++++
 4 files changed, 32 insertions(+), 8 deletions(-)
 create mode 100644 version.h

diff --git a/Makefile b/Makefile
index 4016703..c6b06c6 100644
--- a/Makefile
+++ b/Makefile
@@ -83,9 +83,9 @@ endif
 endif
 
 LTZ_A:=libtonezone.a
-LTZ_A_OBJS:=zonedata.o tonezone.o
+LTZ_A_OBJS:=zonedata.o tonezone.o version.o
 LTZ_SO:=libtonezone.so
-LTZ_SO_OBJS:=zonedata.lo tonezone.lo
+LTZ_SO_OBJS:=zonedata.lo tonezone.lo version.o
 LTZ_SO_MAJOR_VER:=1
 LTZ_SO_MINOR_VER:=0
 
@@ -130,7 +130,7 @@ programs: libs utils
 
 utils: $(BINS) utils-subdirs
 
-version.h: FORCE
+version.c: FORCE
 	@TOOLSVERSION="${TOOLSVERSION}" build_tools/make_version_h > $@.tmp
 	@if cmp -s $@.tmp $@ ; then :; else \
 		mv $@.tmp $@ ; \
@@ -141,6 +141,8 @@ tests: patgen pattest patlooptest hdlcstress hdlctest hdlcgen hdlcverify timerte
 
 $(UTILS): %: %.o
 
+$(UTILS): version.o
+
 %.o: %.c
 	$(CC) $(CFLAGS) $(MAKE_DEPS) -c -o $@ $<
 
@@ -150,7 +152,7 @@ $(UTILS): %: %.o
 %: %.o
 	$(CC) $(LDFLAGS) -o $@ $^
 
-prereq: config.status version.h
+prereq: config.status
 
 dahdi_tool: CFLAGS+=$(NEWT_INCLUDE)
 dahdi_tool: LDFLAGS+=$(NEWT_LIB)
diff --git a/build_tools/make_version_h b/build_tools/make_version_h
index f65fdd0..7382f3f 100755
--- a/build_tools/make_version_h
+++ b/build_tools/make_version_h
@@ -1,10 +1,10 @@
 #!/bin/sh
 cat << END
 /*
- * version.h 
+ * version.c
  * Automatically generated
  */
 
-static const char tools_version[] = "DAHDI Tools Version - ${TOOLSVERSION}";
+const char dahdi_tools_version[] = "DAHDI Tools Version - ${TOOLSVERSION}";
 
 END
diff --git a/dahdi_cfg.c b/dahdi_cfg.c
index e6f3d93..fcfdeaf 100644
--- a/dahdi_cfg.c
+++ b/dahdi_cfg.c
@@ -1338,7 +1338,7 @@ static void usage(char *argv0, int exitcode)
 		c = argv0;
 	else
 		c++;
-	fprintf(stderr, "%s\n", tools_version);
+	fprintf(stderr, "%s\n", dahdi_tools_version);
 	fprintf(stderr, 
 		"Usage: %s [options]\n"
 		"    Valid options are:\n"
@@ -1393,7 +1393,7 @@ int main(int argc, char *argv[])
 	}
 	
 	if (verbose) {
-		fprintf(stderr, "%s\n", tools_version);
+		fprintf(stderr, "%s\n", dahdi_tools_version);
 	}
 
 	if (fd == -1) fd = open(MASTER_DEVICE, O_RDWR);
diff --git a/version.h b/version.h
new file mode 100644
index 0000000..897de90
--- /dev/null
+++ b/version.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2008 Digium, Inc.
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under thet erms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 
+ *
+ */
+
+extern const char *dahdi_tools_version;
-- 
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