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From: "jussilehtola at fedoraproject dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/96486] get_environment_variable fails for zero-length
 values
Date: Wed, 05 Aug 2020 16:43:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96486

--- Comment #4 from Susi Lehtola <jussilehtola at fedoraproject dot org> ---
$ export HOSTNAME=3Dfoo
$ ./a.out=20
$

$ export HOSTNAME=3D
$ ./a.out=20
Fortran runtime error: Zero-length string passed as value to
get_environment_variable.

Error termination. Backtrace:
#0  0x7f25c93aadf1 in ???
#1  0x7f25c93ab939 in ???
#2  0x7f25c93abe60 in ???
#3  0x7f25c960ce53 in ???
#4  0x401267 in ???
#5  0x4012c4 in ???
#6  0x7f25c903a041 in __libc_start_main
        at ../csu/libc-start.c:308
#7  0x4010ad in ???
#8  0xffffffffffffffff in ???
$=