From 38fffa8e27c40d8658b9d80fbfaba50e8d11907b Mon Sep 17 00:00:00 2001
From: Zygo Blaxell <bees@furryterror.org>
Date: Wed, 18 Jan 2017 22:17:02 -0500
Subject: [PATCH] lib: add a version string

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
---
 include/crucible/version.h | 8 ++++++++
 lib/.gitignore             | 1 +
 lib/Makefile               | 5 +++++
 3 files changed, 14 insertions(+)
 create mode 100644 include/crucible/version.h
 create mode 100644 lib/.gitignore

diff --git a/include/crucible/version.h b/include/crucible/version.h
new file mode 100644
index 0000000..111ff0b
--- /dev/null
+++ b/include/crucible/version.h
@@ -0,0 +1,8 @@
+#ifndef CRUCIBLE_VERSION_H
+#define CRUCIBLE_VERSION_H
+
+namespace crucible {
+	extern const char *VERSION;
+}
+
+#endif CRUCIBLE_VERSION_H
diff --git a/lib/.gitignore b/lib/.gitignore
new file mode 100644
index 0000000..0bde7ac
--- /dev/null
+++ b/lib/.gitignore
@@ -0,0 +1 @@
+.version.*
diff --git a/lib/Makefile b/lib/Makefile
index b54492d..b9e0578 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -13,6 +13,7 @@ OBJS = \
 	string.o \
 	time.o \
 	uuid.o \
+	.version.o \
 
 include ../makeflags
 
@@ -21,6 +22,10 @@ depends.mk: *.c *.cc
 	for x in *.cc; do $(CXX) $(CXXFLAGS) -M "$$x"; done >> depends.mk.new
 	mv -fv depends.mk.new depends.mk
 
+.version.cc: Makefile ../makeflags *.c *.cc ../include/crucible/*.h
+	echo "namespace crucible { const char *VERSION = \"$(shell git describe --always --dirty || echo UNKNOWN)\"; }" > .version.new.cc
+	mv -f .version.new.cc .version.cc
+
 -include depends.mk
 
 %.o: %.c