From 3d9c2e72fb16e4a71985efac1fd5327ff9eb4dba Mon Sep 17 00:00:00 2001
From: Hans Ulrich Niedermann <hun@n-dimensional.de>
Date: Fri, 25 Jan 2008 11:49:16 +0100
Subject: [PATCH] Compile executable with correct version number

Updates awesome-version.h every time the version number has
actually changed. The normal C header deps will then trigger
the appropriate rebuilds.

Signed-off-by: Julien Danjou <julien@danjou.info>
---
 Makefile.am  | 12 ++++++++++++
 awesome.c    |  3 ++-
 configure.ac |  2 +-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index f0c80c9f..2800c4cf 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -82,6 +82,18 @@ widgetgen.h: widget.h
 	@echo "generating widgetgen.h from widget.h"
 	$(top_srcdir)/build-utils/widgetgen.sh "$(top_srcdir)" > widgetgen.h
 
+CLEANFILES    += awesome-version.h
+BUILT_SOURCES += awesome-version.h.stamp
+awesome-version.h.stamp:
+	@current_ver=`$(SHELL) $(top_srcdir)/build-utils/package-version $(top_srcdir) version-stamp`; \
+	{ echo '#ifndef AWESOME_VERSION_H'; \
+	  echo "#define AWESOME_VERSION \"$${current_ver}\""; \
+	  echo "#endif"; } > "awesome-version.h.new"
+	@if test -f "awesome-version.h" \
+        && cmp "awesome-version.h.new" "awesome-version.h"; then :; \
+	else cat "awesome-version.h.new" > "awesome-version.h"; fi; \
+	rm -f "awesome-version.h.new"
+
 if USING_GCC
 # If you are using gcc, and want to deactivate this default set of
 # compile flags, run make with AWESOME_CFLAGS="".
diff --git a/awesome.c b/awesome.c
index 24d62a4f..91d4435c 100644
--- a/awesome.c
+++ b/awesome.c
@@ -38,6 +38,7 @@
 #include <X11/extensions/shape.h>
 #include <X11/extensions/Xrandr.h>
 
+#include "awesome-version.h"
 #include "awesome.h"
 #include "event.h"
 #include "layout.h"
@@ -219,7 +220,7 @@ main(int argc, char *argv[])
         args_ok = 0;
         if(!a_strcmp("-v", argv[1]) || !a_strcmp("--version", argv[1]))
         {
-            printf("awesome version " VERSION " (" RELEASE ")\ncompiled");
+            printf("awesome version " AWESOME_VERSION " (" AWESOME_RELEASE ")\ncompiled");
 #if defined(__DATE__) && defined(__TIME__)
             printf(" at " __DATE__ " " __TIME__);
 #endif
diff --git a/configure.ac b/configure.ac
index 0fe4e898..8500b44b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -24,7 +24,7 @@ std-options
 subdir-objects
 ])
 
-AC_DEFINE_UNQUOTED([RELEASE], ["Productivity Breaker"], [release code name])
+AC_DEFINE_UNQUOTED([AWESOME_RELEASE], ["Productivity Breaker"], [release code name])
 
 AC_MSG_CHECKING([package version according to autoconf])
 AC_MSG_RESULT([${PACKAGE_VERSION}])