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nixpkgs/pkgs/development/libraries/howard-hinnant-date/make-zoneinfo-available.diff
Cole Helbling 25057960ce
howard-hinnant-date: allow access to zoneinfo
This fixes the situtation where, if `/usr/share/zoneinfo` was
inaccessible/didn't otherwise exist, `howard-hinnant-date` would
download and drop a `~/Downloads/tzdata` directory containing some
timezone information from IANA [1]. To avoid this, we make use of the
`tzdata`'s `zoneinfo`, preventing the dropping of random directories and
files.

[1] https://data.iana.org/time-zones/releases/tzdata2019c.tar.gz
2020-03-02 22:48:52 -08:00

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Diff

diff --git a/src/tz.cpp b/src/tz.cpp
index 68436c3..2bfe19e 100644
--- a/src/tz.cpp
+++ b/src/tz.cpp
@@ -349,7 +349,7 @@ discover_tz_dir()
struct stat sb;
using namespace std;
# ifndef __APPLE__
- CONSTDATA auto tz_dir_default = "/usr/share/zoneinfo";
+ CONSTDATA auto tz_dir_default = "@tzdata@/share/zoneinfo";
CONSTDATA auto tz_dir_buildroot = "/usr/share/zoneinfo/uclibc";
// Check special path which is valid for buildroot with uclibc builds