gnucash master: Fix crash from dereferencing nullptr when TZ isn't set.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/081d6ec0 (commit)
	from  https://github.com/Gnucash/gnucash/commit/9fc6119d (commit)



commit 081d6ec037649427adb2f98032e92f87346182cf
Author: John Ralls <jralls at ceridwen.us>
Date:   Mon Sep 26 17:55:45 2016 +0200

    Fix crash from dereferencing nullptr when TZ isn't set.

diff --git a/src/libqof/qof/gnc-timezone.cpp b/src/libqof/qof/gnc-timezone.cpp
index 45f9a60..46a7ca9 100644
--- a/src/libqof/qof/gnc-timezone.cpp
+++ b/src/libqof/qof/gnc-timezone.cpp
@@ -353,8 +353,9 @@ namespace IANAParser
 	std::ifstream ifs;
         auto tzname = name;
         if (tzname.empty())
-            tzname = std::string(std::getenv("TZ"));
-        std::cout << "Testing tzname " << tzname << "\n";
+            if (auto tzenv = getenv("TZ"))
+                tzname = std::string(std::getenv("TZ"));
+        //std::cout << "Testing tzname " << tzname << "\n";
 	if (tzname.empty())
 	{
 	    ifs.open("/etc/localtime",



Summary of changes:
 src/libqof/qof/gnc-timezone.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)