3 files changed, 22 insertions, 4 deletions
diff --git a/Makefile b/Makefile
index 883deab..e09f983 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ install: XD
 	chmod 755 $(PREFIX)/bin/XD
 	mkdir -p $(MANDIR)/man1
 	cp -f XD.1 $(MANDIR)/man1
-	chmod 644 $(PREFIX)/man1/XD.1
+	chmod 644 $(MANDIR)/man1/XD.1
 
 uninstall: XD
 	rm -f $(PREFIX)/bin/XD $(MANDIR)/man1/XD.1
diff --git a/XD.c b/XD.c
index a76909b..6132218 100644
--- a/XD.c
+++ b/XD.c
@@ -1,8 +1,8 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #ifdef ERR
 #include <stdarg.h>
-#include <string.h>
 #endif
 
 #ifdef GIT
@@ -155,9 +155,17 @@ has_staged(git_repository *repo)
 int
 main(int argc, char *argv[])
 {
-  int code = -1;
+  int i, code = -1;
   char face[] = { ':', 0, '|' };
 
+  /* print version information */
+  for (i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "-v") == 0) {
+      printf("XD v%s\n", VERSION);
+      return 0;
+    }
+  }
+
   #ifdef GIT
   git_repository *repo;
   int git_ok = 0;
diff --git a/config.mk b/config.mk
index bf199e0..e2d946c 100644
--- a/config.mk
+++ b/config.mk
@@ -1,4 +1,4 @@
-VERSION = 1.0
+VERSION = 1.1
 
 PKG_CONFIG = pkg-config
 
@@ -16,4 +16,14 @@ ERR =
 # uncomment to enable errors
 # ERR = -DERR
 
+# add compilation details to VERSION variable
+ifneq ($(GIT),)
+	VERSION := $(VERSION)"\\nlibgit2 "`$(PKG_CONFIG) --modversion $(GITLIB)`
+endif
+ifeq ($(ERR),)
+	VERSION := $(VERSION)"\\nerrors disabled"
+else
+	VERSION := $(VERSION)"\\nerrors enabled"
+endif
+
 CC = cc