libjpeg

[Koryn Grant]

The following procedure worked for me:

	1. Install GNU libtool in /usr/local/bin (the default).
	2.  ./configure --enable-shared
	3.  ln -s /usr/local/bin/libtool ./libtool
	4.  make
	5.  sudo make install

Cheers,
Koryn


On 4/05/2007, at 6:50 AM, János wrote:

> Hi,
>
> I am trying to create a shared library from the libjpeg source -  
> www.ijg.org.  So in the source directory I do the following:
>
> bml0042:/Volumes/Data/Downloads/source/jpeg-6b janos$ ./configure -- 
> enable-shared
> checking for gcc... gcc
> checking whether the C compiler (gcc  ) works... yes
> checking whether the C compiler (gcc  ) is a cross-compiler... no
> checking whether we are using GNU C... yes
> checking how to run the C preprocessor... gcc -E
> checking for function prototypes... yes
> checking for stddef.h... yes
> checking for stdlib.h... yes
> checking for string.h... yes
> checking for size_t... yes
> checking for type unsigned char... yes
> checking for type unsigned short... yes
> checking for type void... yes
> checking for working const... yes
> checking for inline... __inline__
> checking for broken incomplete types... ok
> checking for short external names... ok
> checking to see if char is signed... yes
> checking to see if right shift is signed... yes
> checking to see if fopen accepts b spec... yes
> checking for a BSD compatible install... /usr/bin/install -c
> checking for ranlib... ranlib
> checking host system type... ltconfig: cannot guess host type; you  
> must specify one
> Try `ltconfig --help' for more information.
> checking libjpeg version number... 62
> creating ./config.status
> creating Makefile
> creating jconfig.h
>
> bml0042:/Volumes/Data/Downloads/source/jpeg-6b janos$ make
> ./libtool --mode=compile gcc -O2  -I. -c ./jcapimin.c
> make: ./libtool: Command not found
> make: *** [jcapimin.lo] Error 127
>
> There is no libtool in the current directory, so I try to run  
> ltconfig as:
>
> bml0042:/Volumes/Data/Downloads/source/jpeg-6b janos$ ltconfig -- 
> srcdir=./ --with-gcc ltmain.sh
> checking host system type... ltconfig: cannot guess host type; you  
> must specify one
> Try `ltconfig --help' for more information.
>
> Looking into the config.guess file I see that neither "Power  
> Macintosh" nor "Darwin" is there.
>
> If I copy over libtool from /usr/bin and try make, - probably not a  
> good idea -  then I get this error:
> <snip>
> bml0042:/Volumes/Data/Downloads/source/jpeg-6b janos$ make
> ./libtool --mode=compile gcc -O2  -I. -c ./jcapimin.c
> ./libtool: unknown option character `-' in: --mode=compile
> Usage: ./libtool -static [-] file [...] [-filelist listfile 
> [,dirname]] [-arch_only arch] [-sacLT]
> Usage: ./libtool -dynamic [-] file [...] [-filelist listfile 
> [,dirname]] [-arch_only arch] [-o output] [-install_name name] [- 
> compatibility_version #] [-current_version #] [-seg1addr 0x#] [- 
> segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [- 
> seg_addr_table <filename>] [-seg_addr_table_filename  
> <file_system_path>] [-all_load] [-noall_load]
> make: *** [jcapimin.lo] Error 1
> </snip>
>
> What does it mean: "unknown option character `-' in: -- 
> mode=compile" ?  Does it complain about -O2, or -l or -c ?
>
> I am looking it but not seeing it :)
>
> Thanks ahead,
>
> János_______________________________________________
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