Am 20.07.2011 um 10:52 schrieb Enrico Forestieri:
> On Wed, Jul 20, 2011 at 08:57:46AM +0200, Stephan Witt wrote:
>> Am 20.07.2011 um 01:09 schrieb Pavel Sanda:
>>
>>> Stephan Witt wrote:
>>>> In case of interest
>>>>
>>>> QT_VERSION="4.10.3" sh -c 'v="0x0"; for i in ${QT_VERSION//./ } ; do case
>>>> $i in 10) v=$v"0a" ;; 11) v=$v"0b" ;; 12) v=$v"0c" ;; 13) v=$v"0d" ;; 14)
>>>> v=$v"0e" ;; 15) v=$v"0f" ;; *) v=$v"0"$i ;; esac ; done; echo $v'
>>>>
>>>> prints 0x0040a03
>
> This code uses bash specific features and fails with a posix shell (try it
> with dash, for example). As a matter of fact, it fails on solaris.
Ok. I know the pattern matching substitution is not bourne shell.
The bc replacement is the "case" part of the solution.
>
>>> how do cmake people solve this in windows? pavel
>>
>> This is not for cmake. It's a possible replacement for the construct with bc
>> in
>> src/frontends/qt4/Makefile.am
>>
>> I don't know if add bc as a build requirement is a solution too.
>
> The basic calculator (bc) is part of the Single UNIX specification, so it
> is expected to be there, such as one expects that ls is there. So, I don't
> know what it means "adding bc as a build requirement", as we don't add
> tens of other commands as build requirement and simply expect that they
> are there.
Cor wrote it was needed to add on the build system.
I have no problem with the bc based solution.
Stephan
