Re: png support broken?

[Werner LEMBERG]

> After evaluating (auto-image-file-mode t) I can view PNG images
> using

> 
>     today's CVS snapshot, Tue, 2003 Sep 23 12:14 UTC
>     GNU Emacs 21.3.50.86 (i686-pc-linux-gnu, GTK+ Version 2.2.1)
>     kernel 2.4.21,
>     libpng10.so.0.1.0.15
>         [I also have    libpng12.so.0.1.2.5
>          but not its related png.h and pngconf.h files 
>          for which ./configure checks]
> 
> started with
> 
>   /usr/local/bin/emacs -q --no-site-file --eval '(blink-cursor-mode 0)'

I've now found out (with ldd) that I wasn't using libpng12 at all!

I've the following libraries of libpng in /usr/lib:

  libpng.so -> libpng.so.2
  libpng.so.1 -> libpng.so.1.0.89
  libpng.so.1.0.89
  libpng.so.2 -> libpng.so.2.1.0.12
  libpng.so.2.1.0.12

And I have this in /usr/local/lib:

  libpng.so -> libpng.so.3
  libpng.so.3 -> libpng.so.3.1.2.5
  libpng.so.3.1.2.5
  libpng12.so -> libpng12.so.0
  libpng12.so.0 -> libpng12.so.0.1.2.5
  libpng12.so.0.1.2.5

I always thought that by default gcc searches /usr/local/include for
include files and /usr/local/lib for library files besides the
standard /usr/include and /usr/lib, respectively (I don't have the
environment variables INCLUDE_PATH and LIBRARY_PATH set).  So I wonder
why gcc is using libpng.so.2 and not libpng.so.3?  What am I doing
wrong?

After using LDFLAGS=/usr/local/lib during configuration my emacs is
finally linked to libpng.so.3.


    Werner