lib: Add dovecot_build_info variable containing Dovecot build informa…

…tion.

By default this includes the version, including the git hash. The idea is
that this version information would be available in all the core dumps.

The DOVECOT_BUILD_INFO can be overridden by compiling with:

DOVECOT_BUILD_INFO='"build info"' make

src/lib/lib.c

@@ -1,6 +1,7 @@
 /* Copyright (c) 2001-2017 Dovecot authors, see the included COPYING file */
 
 #include "lib.h"
+#include "dovecot-version.h"
 #include "array.h"
 #include "env-util.h"
 #include "hostpid.h"
@@ -13,6 +14,10 @@
 #include <unistd.h>
 #include <sys/time.h>
 
+/* Mainly for including the full version information in core dumps.
+   NOTE: Don't set this const - otherwise it won't end up in core dumps. */
+char dovecot_build_info[] = DOVECOT_BUILD_INFO;
+
 static bool lib_initialized = FALSE;
 int dev_null_fd = -1;
 

update-version.sh

@@ -4,6 +4,7 @@ SRCDIR="${1:-`pwd`}"
 BUILDDIR="${2:-`pwd`}"
 VERSION_H="dovecot-version.h"
 VERSION_HT="dovecot-version.h.tmp"
+DOVECOT_BUILD_INFO=${DOVECOT_BUILD_INFO:-DOVECOT_VERSION_FULL}
 
 abspath()
 { #$1 the path
@@ -45,6 +46,7 @@ if true; then
 #define DOVECOT_VERSION_H
 
 #define DOVECOT_VERSION_FULL VERSION" (${GITID})"
+#define DOVECOT_BUILD_INFO ${DOVECOT_BUILD_INFO}
 
 #endif /* DOVECOT_VERSION_H */
 EOF
@@ -54,6 +56,7 @@ else
 #define DOVECOT_VERSION_H
 
 #define DOVECOT_VERSION_FULL VERSION
+#define DOVECOT_BUILD_INFO ${DOVECOT_BUILD_INFO}
 
 #endif /* DOVECOT_VERSION_H */
 EOF