SSL_CERT_DIR can cause LibGit2 initialization error #20439
Description
It appears that broken symlinks within the SSL_CERT_DIR can cause Julia to raise an exception during startup:
$ mkdir /tmp/certs
$ cd /tmp/certs
$ ln -s bar foo
$ ln -s /doesnotexist bar
$ SSL_CERT_DIR=/tmp/certs julia # Julia 0.6
fatal: error thrown and no exception handler available.
Base.InitError(mod=:LibGit2, error=ErrorException("error initializing LibGit2 module"))
rec_backtrace at /home/centos/buildbot/slave/package_tarball64/build/src/stackwalk.c:84
record_backtrace at /home/centos/buildbot/slave/package_tarball64/build/src/task.c:239
jl_throw at /home/centos/buildbot/slave/package_tarball64/build/src/task.c:565
__init__ at ./libgit2/libgit2.jl:669
unknown function (ip: 0x7f0b84fc7a88)
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:248 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:2217
jl_apply at /home/centos/buildbot/slave/package_tarball64/build/src/julia.h:1411 [inlined]
jl_module_run_initializer at /home/centos/buildbot/slave/package_tarball64/build/src/toplevel.c:85
_julia_init at /home/centos/buildbot/slave/package_tarball64/build/src/init.c:704
julia_init at /home/centos/buildbot/slave/package_tarball64/build/src/task.c:292
unknown function (ip: 0x401656)
__libc_start_main at /lib/x86_64-linux-gnu/libc.so.6 (unknown line)
unknown function (ip: 0x40170c)Note that the paths in the exception above appear to be from the official build server as I encountered this in a Debian environment.
versioninfo:
Julia Version 0.6.0-dev.2499
Commit cdca71b (2017-02-01 15:33 UTC)
Platform Info:
OS: Linux (x86_64-pc-linux-gnu)
CPU: Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
WORD_SIZE: 64
BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Sandybridge)
LAPACK: libopenblas64_
LIBM: libopenlibm
LLVM: libLLVM-3.9.1 (ORCJIT, ivybridge)