RFR: JDK-8035904: Solaris fastdebug builds are failing

[Tim Bell]

Hi Erik:

> JDK-8034199 unfortunately didn't work with a bunch of internal Solaris 
> installations. It seems common for Solaris 10 to not have an updated 
> bash version and the =~ construct used in that patch requires bash 3.x 
> or higher.
>
> Here is a rewrite of that part using grep.


Looks good to me.

Tim

> Bug: https://bugs.openjdk.java.net/browse/JDK-8035904
>
> Patch inline:
>
> diff -r 73d85b04c45c common/autoconf/configure
> --- a/common/autoconf/configure
> +++ b/common/autoconf/configure
> @@ -127,10 +127,11 @@
>    if [[ -n "$1" ]]; then
>      # Uses only shell-safe characters?  No quoting needed.
>      # '=' is a zsh meta-character, but only in word-initial position.
> -    if [[ "$1" =~ 
> ^[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789.:,%/+=_-]+$ 
> && ! "$1" =~ ^= ]]; then
> +    if echo "$1" | grep -qE 
> '^[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789.:,%/+=_-]+$' 
> \
> +        && ! echo "$1" | grep -qE '^='; then
>        quoted="$1"
>      else
> -      if [[ "$1" =~ [\'!] ]]; then
> +      if echo "$1" | grep -qE "[\'!]"; then
>          # csh does history expansion within single quotes, but not
>          # when backslash-escaped!
>          local quoted_quote="'\\''" quoted_exclam="'\\!'"
>
>
> /Erik