Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: x86_64-pc-linux-gnu-gcc
Compilation CFLAGS: -march=native -mtune=native -O2 -pipe -Wno-parentheses
-Wno-format-security
uname output: Linux abudhabi 4.19.13 #1 SMP PREEMPT Sat Dec 29 15:21:48 CET
2018 x86_64 AMD Opteron(tm) Processor 6328 AuthenticAMD GNU/Linux
Machine Type: x86_64-pc-linux-gnu
Bash Version: 5.0
Patch Level: 0
Release Status: release
Description:
When sourcing a script that contains a variable which performs
a := parameter expansion with a regular expression while failglob
shell option is enabled, bash-5.0 emits a "no match: <regexp>"
error message.
Repeat-By:
> cat bash5_testscript.sh
: ${TESTPATTERN:="\(auto|unit\)\?tests\?"}
echo ${TESTPATTERN}
> shopt -s failglob
> source bash5_testscript.sh
bash: no match: \(auto|unit\)\?tests\?
bash: no match: \(auto|unit\)\?tests\?
>
