Regular expression support in Android

[pm_10]

I'm trying to compile for POSIX regular expression functions in
Android & somehow my variables & functions get resolved by regex.h
present in android-8 directory at android-ndk-r4\build\platforms
\android-8\arch-arm\usr\include\regex.h but while loading - the
corresponding code cannot be located to make the executable. -

<...>/file_parse.c:82: undefined reference to `regcomp'
<...>/file_parse.c:84: undefined reference to `regexec'
collect2: ld returned 1 exit status

any help would be greatly appreciated.

[Onur Cinar]

Hi,

Yes looks like the header is available but the libc does not include
the implementations for these functions.

Looks like the best alternative is to download the glibc source code
from (http://ftp.gnu.org/gnu/glibc/) and then including the regcomp.c
and regexec.c into your library directly for now.

I'm hoping that it will resolve the issue for now.

Regards,

-onur

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[David Turner]

Oops, it's probably a packaging error. The Froyo C library *does* include the regex functions.

I guess I didn't properly update the binary in the NDK platforms directory.

I'll try to fix this in a later release. In the meantime, please grab the sources from the OpenBSD

tree (they are in src/lib/libc/regex/), since that's what is being used in Froyo, and include them to

your project.

Sorry about that.

 

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[David Turner]

On Sat, Jun 19, 2010 at 10:41 PM, Onur Cinar <onur....@gmail.com> wrote:

Hi,

Yes looks like the header is available but the libc does not include
the implementations for these functions.

Looks like the best alternative is to download the glibc source code
from (http://ftp.gnu.org/gnu/glibc/) and then including the regcomp.c
and regexec.c into your library directly for now.

I don't know if the GLibc regex is licensed under the BSD or LGPL. If the latter,

this is probably not a good advice for a lot of people !

 

I'm hoping that it will resolve the issue for now.

Regards,

-onur

On Jun 19, 5:27 pm, pm_10 <pmalhotr...@gmail.com> wrote:
> I'm trying to compile for POSIX regular expression functions in
> Android & somehow my variables & functions get resolved by regex.h
> present in android-8 directory at android-ndk-r4\build\platforms
> \android-8\arch-arm\usr\include\regex.h but while loading - the
> corresponding code cannot be located to make the executable. -
>
> <...>/file_parse.c:82: undefined reference to `regcomp'
> <...>/file_parse.c:84: undefined reference to `regexec'
> collect2: ld returned 1 exit status
>
> any help would be greatly appreciated.

---
www.zdo.com

[Onur Cinar]

Hi David,

> > I don't know if the GLibc regex is licensed under the BSD or LGPL. If the
>
> latter,
> this is probably not a good advice for a lot of people !

It is LGPL, so it needs to be linked as a dynamic library outside the
actual code for closed code applications. But if everything else is
coming from OpenBSD, then actually there is no reason to use glibc.
Thanks for that info.

Regards,

-onur


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[pm_10]

Thanks Guys.

Regards,
pm_10