[mrtg] Re: conftest.c error?

[Yozo Toda]

> Compiling mrtg for UnixWare:
> --
> MRTG 2.8.6
> GD 1.6.3
> libpng 1.0.3
> zlib1.1.3
> --
> 
> I have ran into a problem compiling on UnixWare.
> It seems to miss the file 'conftest.c'.

conftest.c is generated by configure.  try read it.


> The config.log states:
> ------
> 
> configure:1002: checking for gdImageGif in -lgd
> configure:1021: cc -o conftest -g   -lm -lgd conftest.c -lgd   1>&5
> Undefined                       first referenced
>  symbol                             in file
> gdImageGif                          conftest.o
> UX:ld: ERROR: conftest: fatal error:
> 	Symbol referencing errors. No output written to conftest
> ------

when I ran configure as
  ./configure --with-gd-lib=/opt/gd/lib ......

I got the output as

======================================================================
......
configure:1002: checking for gdImageGif in -lgd
configure:1021: gcc -o conftest -g -O2 -I/opt/gd/include   -lm -L/opt/gd/lib -lgd conftest.c -lgd   1>&5
Undefined			first referenced
 symbol  			    in file
png_set_strip_16                    /opt/gd/lib/libgd.so
png_set_read_fn                     /opt/gd/lib/libgd.so
png_create_write_struct             /opt/gd/lib/libgd.so
png_create_read_struct              /opt/gd/lib/libgd.so
png_set_tRNS                        /opt/gd/lib/libgd.so
png_write_end                       /opt/gd/lib/libgd.so
gdImageGif                          /var/tmp/cczzNnJy.o
......
======================================================================

note the existence of "-L/opt/gd/lib".
(see
  <http://aohakobe.ipc.chiba-u.ac.jp/misc/docs/mrtg/mrtg-2.8.6/config.log>
  <ftp://aohakobe.ipc.chiba-u.ac.jp/misc/docs/mrtg/mrtg-2.8.6/config.log>
if you're interested.)

I wonder why your adding --with-gd-lib option does not work...

-- yozo.

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