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f203a8f)
* build-aux/bootstrap (get_version): Don't use perl's $] special
variable, as that requires updating all bootstrap.conf files to
use perl's x.yyyzzz version format. Instead make the regular
expression more general to support version formats from older
perl-5.005_002 (5.5.2) and perl-5.11 which has other numbers
in the version line.
- # perl 5.11's --version output does not fit the mold,
- # handle perl as a special case.
- if test "_$app" = _perl; then
- perl -le 'print $]' || return 1
- return 0
- fi
-
$app --version >/dev/null 2>&1 || return 1
$app --version 2>&1 |
$app --version >/dev/null 2>&1 || return 1
$app --version 2>&1 |
- sed -n 's/[^0-9.]*\([0-9]\{1,\}\.[.a-z0-9-]*\).*/\1/p
+ sed -n '# extract version within line
+ s/.*[v ]\{1,\}\([0-9]\{1,\}\.[.a-z0-9-]*\).*/\1/
+ t done
+
+ # extract version at start of line
+ s/^\([0-9]\{1,\}\.[.a-z0-9-]*\).*/\1/
+ #the following essentially does s/5.005/5.5/
+ s/\.0*\([1-9]\)/.\1/g
+ p