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authorLukas Fleischer <cgit@cryptocrack.de>2011-09-14 11:52:43 +0200
committerLars Hjemli <hjemli@gmail.com>2012-01-03 15:59:36 +0100
commitd96d2c98ebc4c2d3765f5b35c4142e0e828a421b (patch)
tree72e2ed0fd0dd949d400cf4b35f9496571488a2eb /ui-ssdiff.h
parent8185169e5e2a8b9438c7a6f3f9c5eb6db5a37fea (diff)
downloadcgit-d96d2c98ebc4c2d3765f5b35c4142e0e828a421b.tar.gz
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shared.c: Only setenv() if value is non-null
Some setenv() implementations (e.g. the one in OpenBSD's stdlib) segfault if we pass a NULL value. Only set environment variables if the corresponding settings are defined to avoid this. Note that this is a minor behaviour change as environment variables were supposed to be set to an empty string if a setting was undefined. Given that this feature isn't part of any official release yet, there's no need to worry about backwards compatibility, really. Change the documentation accordingly. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
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