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Re: [Mingw-cross-env-list] gd library: libpng not properly included?

From: Natalie Tasman
Subject: Re: [Mingw-cross-env-list] gd library: libpng not properly included?
Date: Tue, 15 Jun 2010 17:13:20 -0700

That works.  Thanks, Tony!


On Tue, Jun 15, 2010 at 6:49 AM, Tony Theodore <address@hidden> wrote:
> On 12 June 2010 06:47, Natalie Tasman <address@hidden> wrote:
>> I am finding that gd is being built without libpng support, so it seems.
>> Symptom: when linking to my program, I get
>>  undefined reference to `_gdImagePngPtr'
>>  collect2: ld returned 1 exit status
>> (I'm on Mac OS X 10.6 64-bit with recent macports installed.)
>> Looking at the gd configure and build log:
>> from configure:
>>  checking png.h usability... yes
>>  checking png.h presence... yes
>>  checking for png.h... yes
>>  checking for png_create_read_struct in -lpng12... no
>>  configure: WARNING: libpng is required - see http://www.libpng.org/pub/png/
> It seems to be looking for libpng12 specifically where libpng on it's
> own should work. Could you check if the attached patch works
> correctly? I'll see if I can remove the version specific checks if it
> does.
> Tony

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