Re: [GD-DEVEL] gd with mingw gcc

Many thanks man, that hint hit the spot, I just modified the linker 
options and all went like a charm:
Besides I added some more libraries to the linker options the ones 
mentioned in my erlier e-mail, and the example runs now.

Bill Frost wrote:
> Hi Patolfo,
>
> This all works with Code::Blocks. If this list allows attachments, I've
> included the PNG it produces.
>
> I have the same version of the Windows binary you have and I use MinGW. Just
> follow these steps (then clean up the DLLs and .h files you sprayed
> everywhere a bit earlier!!!):
>
> Assuming your GDLIB is in C:\GDLIB and you have Code::Blocks installed:
>
> 1	Create a new project in Code::Blocks - a console app is fine.
> 2	Copy the bgd.dll, gd.h, gdfx.h and gd_io.h files into the project
> directory (there are other ways of doings this I know).
> 3	From Code::Blocks, click 'Project-Build Options', then the 'Linker
> Settings' tab.
> 4	Click 'Add' and navigate your file system to and select
> C:\GDLIB\lib\bgd.lib. When asked, keep it as a relative path.
> 5	Compile. As this is a console app, you only see the cmd window, so
> navigate to the project directory using Explorer and click on test.png.
>
>
>
> Directory of C:\Documents and Settings\Bill Frost\My
> Documents\Source\deleteme
>
> 09/01/2008  09:32 PM    <DIR>          .
> 09/01/2008  09:32 PM    <DIR>          ..
> 09/01/2008  09:14 PM    <DIR>          bin
> 09/01/2008  09:14 PM    <DIR>          obj
> 24/06/2007  04:49 PM           765,952 bgd.dll
> 09/01/2008  09:12 PM             1,074 deleteme.cbp
> 09/01/2008  09:17 PM               465 deleteme.depend
> 24/06/2007  04:49 PM            32,588 gd.h
> 24/06/2007  04:49 PM             2,396 gdfx.h
> 24/06/2007  04:49 PM             1,154 gd_io.h
> 09/01/2008  09:14 PM             1,199 main.cpp
> 09/01/2008  09:28 PM               113 test.png
>
>  
>
> -----Original Message-----
> From: Patolfo [mailto:[email protected]] 
> Sent: Wednesday, 9 January 2008 2:33 AM
> To: Bill Frost
> Cc: [email protected]
> Subject: Re: [GD-DEVEL] gd with mingw gcc
>
> Hey dude thx for asking, well I am trying both *cough* first tried with 
> code blocks but did not do the trcik so I swtich back to command line, 
> from dos console, and well it did not work either.
>
> The example I'm trying is the first one, sadly yet rather simply  at 
> time compile is where the problems arise, let me put you the console output:
>
> Firstly, I forgot, I copy bgd.dll to every possible location I could 
> imagine :)
> inside mingw in the bin lib and inlude folders, yeah this is paranoia, 
> and also to the windows/system folder as well as in the working directory.
>
> This binary was what I got from:
> http://www.libgd.org/releases/oldreleases/gd-2.0.34-win32.zip
> from the libgd.org site.
>
> The source code to create a png example:
> /* Bring in gd library functions */
> #include "gd.h"
> /* Bring in standard I/O so we can output the PNG to a file */
> #include <stdio.h>
> int main() {
>   /* Declare the image */
>   gdImagePtr im;
>   /* Declare output files */
>   FILE *pngout;
>   /* Declare color indexes */
>   int black;
>   int white;
>   /* Allocate the image: 64 pixels across by 64 pixels tall */
>   im = gdImageCreate(64, 64);
>   /* Allocate the color black (red, green and blue all minimum).
>     Since this is the first color in a new image, it will
>     be the background color. */
>   black = gdImageColorAllocate(im, 0, 0, 0);
>   /* Allocate the color white (red, green and blue all maximum). */
>   white = gdImageColorAllocate(im, 255, 255, 255);
>   /* Draw a line from the upper left to the lower right,
>     using white color index. */
>   gdImageLine(im, 0, 0, 63, 63, white);
>   /* Open a file for writing. "wb" means "write binary", important
>     under MSDOS, harmless under Unix. */
>   pngout = fopen("test.png", "wb");
>   /* Output the image to the disk file in PNG format. */
>   gdImagePng(im, pngout);
>   /* Close the files. */
>   fclose(pngout);
>   /* Destroy the image in memory. */
>   gdImageDestroy(im);
> }
>
> The compilation command:
> g++ ${file_name.c} -lgd -lpng -lz  -lm -o  $(file_name)
> I tried gcc but the error was the same
>
> The output says the following:
> /mingw/lib/libmingw32.a(main.o):main.c:(.text+0x104): undefined 
> reference to 'WinMain@16'
>
> If some one could send me a working example, please do not hesiatate
>
> Bill Frost wrote:
>   
>> Hi Patolfo,
>>
>> I assume you have your own source code with calls to the examples and now
>> wish to compile it?
>>
>> If so, are you using command line or an IDE? I had a little bit of trial
>>     
> and
>   
>> error configuring Code::Blocks to run it when I first started 9 months ago
>> but it's been flawless ever since and it is a wonderful product!
>>
>> If you post details about the environment you are working in I'm sure
>> someone can help.
>>
>> I've been using GD to generate graphs of altitude, power, gradient and
>> velocity and also latitude / longitude maps from raw GPS data using C++
>>     
> and
>   
>> Code::Blocks and it is a wonderful product.
>>
>> Cheers,
>>
>> Bill
>>
>>
>>
>> -----Original Message-----
>> From: Patolfo [mailto:[email protected]] 
>> Sent: Tuesday, 8 January 2008 9:56 AM
>> To: Pierre
>> Cc: [email protected]
>> Subject: Re: [GD-DEVEL] gd with mingw gcc
>>
>> Hi pierre thx for answering, in fact nope I did not comile my self, too 
>> much trouble ,  I donwloaded binary versions precompiled for windows, 
>> from the sourceforge site, I extracted the files into mingw installation 
>> folder, the problem is that when I tried to compile the examples, the 
>> compiler stopped because can not find lgd library, and there is where I 
>> am stuck. Do not know what else to do.
>>
>> Pierre wrote:
>>   
>>     
>>> HI,
>>>
>>> On Jan 6, 2008 9:49 PM, Patolfo Nery Velya <[email protected]> wrote:
>>>   
>>>     
>>>       
>>>> HI guys good day,
>>>> well I have downloaded the latest windows version of gd, but when trying
>>>>       
>>>>         
>> to
>>   
>>     
>>>> compile says that the compiler can not find lgd
>>>>
>>>> i am working with mingw and gcc under windows, did you have the same
>>>>       
>>>>         
>> problem
>>   
>>     
>>>> and how did you solve it
>>>>     
>>>>       
>>>>         
>>> Do you compile GD yourself?
>>>
>>>   
>>>     
>>>       
>>   
>>     
>
>   
>
> ------------------------------------------------------------------------
>