[Mesa-dev] [PATCH] configure.ac: Use POSIX word boundary regex.

[Jan Beich]

Vinson Lee <vlee at freedesktop.org> writes:

> -    # Use \> (marks the end of the word)
> +    # Use [[:>:]] (marks the end of the word)

[[:>:]] is "an extension, compatible with but not specified by POSIX 1003.2".
GNU libc doesn't support it.

$ echo 'foot foo bar' | sed -E 's/foo[[:>:]]//g'
sed: -e expression #1, char 15: Invalid character class name

$ sed --version | sed 1q
sed (GNU sed) 4.4

$ ldd --version
ldd (Debian GLIBC 2.24-9) 2.24

>      echo " `$1`" | sed -E \
>          -e 's/[[[:space:]]]+-m[[^[:space:]]]*//g' \
> -        -e 's/[[[:space:]]]+-DNDEBUG\>//g' \
> +        -e 's/[[[:space:]]]+-DNDEBUG[[[:>:]]]//g' \

Try matching some whitespace after the word as a workaround e.g.,

  -e 's/[[[:space:]]]+-DNDEBUG($|[[[:space:]]])/\1/g'