Andy Colson wrote:
First you need to find libjpeg. one way is:
ldconfig -v|grep jpeg
if not there, try a few common places:
ls /usr/lib/libjpeg*
ls /usr/local/lib/libjpeg*
or if you have locate/slocate then try:
slocate libjpeg.so.7
Second, if it seemed to compile ok, then it found the .h files (which
are probably in /usr/include or /usr/local/include), but when you run
it, its looking for libjpeg.so, and specifically, libjpeg.so.7 which
is probably a symlink.
My guess is the lib is in /usr/local/lib, but you dont have that lib
in /etc/ld.so.conf.
Probably just need to add that path to the file and then run ldconfig
once.
-Andy
Alan Hale wrote:
Many thanks Andy
I had already determined (I'm sorry I wasn't clear) that libjpeg.so.7
was present in /usr/local/lib/ and tried config
--with-jpeg=/usr/local/lib/ and still got the same error. The .h files
are in both /usr/include/ and /usr/local/include/
ldconfig is new to me and I get "command not found" on my system (CentOS
5 by the way).
/etc/ld.so.conf just has one line to include ld.so.conf.d/*.conf and
when I look in ld.so.conf.d there is only one file: mysql-i386.conf
Due to my inexperience, I'm sure, I remain very confused.
Thanks again
Alan
If you post your responses at the bottom, it'll keep messages much more
readable.
ldconfig is probably in /sbin, and you'll need to be root to run it.
The compiler found the .h files and all the other stuff it needed to compile
because it was given paths to /usr/local/*, but when you run the program it
needs to find the shared lib's (*.so). /etc/ld.so.conf tells the runtime
where to search for shared lib's.
Your ldconfig will look in each file in /etc/ld.so.conf.d/ and read all the
paths in each file, and look in each path. (one file could contain multiple
paths) Create a new file in there (call it local.conf, or user.conf, or
bob.conf, or whatever).
If you 'cat /etc/ld.so.conf.d/mysql-i386.conf' you'll probably see one line:
/usr/lib/mysql
In the same manner create a local.conf with just one line:
/usr/local/lib
then as root run:
ldconfig
(or /sbin/ldconfig)
(root usually has /sbin in its path, where a normal user does not).
-Andy
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