Why and how GTK+-2.0's dependencies make me cry

I've worked my way through a number of dependency problems in installing GTK+-2.4.0, but this one has me so stumped that I have to post.

When I try to configure GTK, the following happens:

Code:

---

dan@george:~/gtk+-2.4.0$ ./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking for native Win32... no
checking for gcc... gcc
...
checking tiffio.h usability... yes
checking tiffio.h presence... yes
checking for tiffio.h... yes
checking for jpeg_destroy_decompress in -ljpeg... no
configure: WARNING: *** JPEG loader will not be built (JPEG library not found) ***
configure: error:
*** Checks for JPEG loader failed. You can build without it by passing
*** --without-libjpeg to configure but some programs using GTK+ may
*** not work properly

---

Now I definitely have libjpeg installed, and just to be sure I installed version 6.2 from source. It went with no problems.

Code:

---

dan@george:~/$ locate libjpeg.so.62
/usr/lib/libjpeg.so.62
/usr/lib/libjpeg.so.62.0.0

---

I've tried many different solutions I found on Google, including changing my LD_LIBRARY_PATH variable to include /usr/lib, but I always get the same error. I also checked the options of configure, but there is nothing like "--libjpeg-path=[PATH]", unfortunately. Can you think of any reason why the GTK+-2.4.0 configure script might not see my JPEG library?

Maybe its looking for a symbolic link to libjpeg? You should be able to open the gtk installation file, normally the var's used are all defined right at the top, look for something with libjpeg OR jpeg_destroy_decompress and see where it points, an env var. or a sym. link.

Hope that helps

Do you have an old version of libjpeg that doesn't have "jpeg_destroy_decompress"?

Quote:

---

I've tried many different solutions I found on Google, including changing my LD_LIBRARY_PATH variable to include /usr/lib, but I always get the same error. I also checked the options of configure, but there is nothing like "--libjpeg-path=[PATH]", unfortunately. Can you think of any reason why the GTK+-2.4.0 configure script might not see my JPEG library?

---

Does your /etc/ld.so.conf have that path ? Mine doesn't, but does have /usr/local/lib

After you edit that file, I think you have to run ldconfig.

I tried looking in the code of ./configure, but it's way over my head. I'm not that good at bash scripting.

I tried adding a symlink to /usr/lib/libjpeg.so.62.0.0 in /etc/X11/lib as libjpeg.so.62, but still no good.

My /etc/ld.so.conf file contained only the path "/usr/X11/lib", so I added "/usr/lib" and ran ldconfig. Still the same error.

I'm pretty sure 6.2 is the most recent version of libjpeg, so if it didn't have jpeg_destroy_decompress I would be very surprised and offended.

Any more thoughts?

EDIT: I posted GTK's configure script here, and my output here in case that helps at all.

Just a tip, to make errors easier to find, when configuring/making you can do this

Code:

---

$ ./configure 2>errors
$ less errors
$ make 2>errors
$ less errors

---

It redirects stderr to a file named "errors"

I did a google and this forum came up with a tut :P http://www.linuxforums.org/tutorials...g-HOWTO-7.html

this might help: http://www.tldp.org/HOWTO/Program-Li...libraries.html

Did you edit the file as root? Did you run ldconfig as root? Did it keep your entry or remove it after you ran ldconfig?

What's the output of:

Code:

---

# ldconfig -v | grep jpeg

---

I checked, I have version 62 also.

I'll read those links voraciously in a bit, but in the meantime:

I edited /etc/ld.so.conf as root and ran ldconfig as root. /etc/ld.so.conf still contains the path I added to it.

The output of ldconfig -v | grep jpeg is:

Code:

---

ldconfig: Path `/usr/lib' given more than once
  libjpeg.so.62 -> libjpeg.so.62.0.0

---

And here are the contents of my /etc/ld.so.conf file:

Code:

---

/usr/X11R6/lib
/usr/lib

---

Now for some light reading... :)

EDIT: I just tried all of

Code:

---

./configure --with-libjpeg=/usr/lib
./configure --with-libjpeg=/usr/lib/libjpeg.so.62
./configure --with-libjpeg=/usr/lib/libjpeg.so.62.0.0

---

but still nothing.

Execute this command:

sudo ln -s /usr/lib/libjpeg.so.62.0.0 /usr/lib/libjpeg.so
so that gtk can find your libjpeg (I think this might be a bug in the configure script, don't know and right this minute don't care) but it will get you past the problem

Next one you might run into is that when building libjpeg, you need to install the headers too

jpeg-6b$ sudo make install-headers

then ./configure for gtk will be happy