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Old 04-23-2005, 02:56 AM   #1
franznietzsche
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How to properly install Gtk libraries for compiling


I've tried to compile a simple Gtk window over and over but have been unable too. I inculde the full directory to gtk.h (/usr/include/gtk-1.2/gtk/gtk.h) in the #include statement, but compilation never works. It prints a long list of errors, claiming that a large number of headers do not exist, when they do, right in the same directory as gtk.h. I have no idea what the problem is or what to do about it.
 
Old 04-23-2005, 06:07 AM   #2
Hko
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I'm not veryy familiar with slackware, but IRCC slackware does not ahve a seperate package for development (header) files for each library like most other distro's do (is this correct?).

If you have the GTK libs package installed, just:
Code:
#include <gtk/gtk.h>
And compile with:
Code:
bash$  gcc -Wall $(gtk-config --cflags) $(gtk-config --libs) -o program_name source_name.c

Last edited by Hko; 04-23-2005 at 06:10 AM.
 
Old 04-24-2005, 03:06 AM   #3
paulsm4
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Compiling GTK+

Hi -

Hko is absolutely correct. A couple of additional notes:

1. If your "gtk.h" header is in "/usr/include/gtk-1.2/gtk/gtk.h", then:

a) Your source file must read "#include <gtk/gtk.h>"
... and ...
b) Your "-I" compile switch must point to the gtk/ directory and not the gtk.h header:
"-I /usr/include/gtk-1.2"

2. You should be able to use "gtk-config --cflags" to get the correct GTK+ compile
flags ... and "gtk-config --libs" for the GTK+ link flags ... and "glib-config --cflags" for
the Glib compile flags ... etc etc

Just FYI, in GTK+2 all the individual "*-config" scripts have been replaced with
a single "pkg-config" script.

If you prefer, you can also just hard-code the correct flags into your makefile. In
some cases, this might actually be easier and more effective than debugging
the *config" scripts.

3. You might have different GTK+ headers in different directories. For example, on my
SuSE system, I have some of the GTK+ headers in /usr/include ... and others in
/usr/lib/gtk*/include. So you might need multiple different "-I" switches (and, when
you're past the compile errors, multiple different "-L" link siwtches).

4. Look at the *first* compile error, at the top of the errors. That will be the most important
to understand the actual problem.

'Hope that helps .. PSM
 
Old 04-27-2005, 09:22 PM   #4
sisi041
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vi gtk.h and find all .h file included and confirm their exists
you may find /usr/include/xx/xx1.h indeed appears in /usr/include/xx1.2/xx1.h
then copy it to right place
 
Old 04-28-2005, 12:09 AM   #5
paulsm4
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Uh - no.

You practically *never* want to copy a system header file "someplace else".

Using "pkg-config" is the best way to go, if at all possible. Using as many "-I" include directory commands to gcc is your best alternative.
 
Old 04-28-2005, 08:02 AM   #6
Hko
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I certainly agree with paulsm4.
The headers are in the right place. If it's not, your installation is broken and you should fix that instead.
 
  


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