Hello,
I was trying to istall Gdkpixbuff 2.26.1 in my laptop ubuntu 11.10, when I did:
and I got these error message
A bunch of things I am not sure:
1) glib2.0 must have been installed. The one that comes with the system is untouched (i.e GLIB2.31.0; although I am not sure where it is!), and the newest version is installed $HOME/Downloads/glib-2.33.1
2) How do I remove the old version? It's better to replace it with the new one, but how? I am quite nervous if I move the old one, my system would be screwed.
3) How do I modify my environment varaibles LD_LIBRARY_PATH or/and PKG_CONFIG_PATH for this particular compiling?
4) Or how to modify the /etc/ld.so.conf. I tried searching, but do not understand what supposed to do.
I have found this type of problem is quite often when I compile other packages/programs from source. Please someone walk me thru this problem. Thanks a lot!
You have to check your installed libraries with the package management tool. In Ubuntu it is called "Synaptics" and should be available. Start it and search for "glib" to find out which version is installed.
Quote:
Originally Posted by yifangt
1) glib2.0 must have been installed. The one that comes with the system is untouched (i.e GLIB2.31.0; although I am not sure where it is!), and the newest version is installed $HOME/Downloads/glib-2.33.1
This is not "installed", just "downloaded". Check if it is installed with "Synaptics".
Quote:
Originally Posted by yifangt
2) How do I remove the old version? It's better to replace it with the new one, but how? I am quite nervous if I move the old one, my system would be screwed.
Again: use Synaptics Package Manager. You can install the newer version of the library as well as deinstall the old version of the library there.
Quote:
Originally Posted by yifangt
3) How do I modify my environment varaibles LD_LIBRARY_PATH or/and PKG_CONFIG_PATH for this particular compiling?
You simply open a terminal, where you want to compile. Prior to use "./configure" or "make" or something such you issue:
Then, without closing the window, you issue your make- or configure-command in there. Truth be told, i suppose you don''t need to do that once you have updated your library.
Quote:
Originally Posted by yifangt
4) Or how to modify the /etc/ld.so.conf. I tried searching, but do not understand what supposed to do.
The file is a simple text file, so you can modify it with any text-editor you want. I'd point you to "vi", but probably you are not comfortable with it so i suggest you use any text editor you know how to operate or get some knowledgeable help. CAUTION: stay away from transferring the file to a Windoze machine for editing and then transferring it back. This is in principle possible but chances are you (Windoze respectively) get the recoding of the line ends wrong and end up with an unusable file back in Unix. In total it is easier to do the editing in Unix.
The variable "LD_LIBRARY_PATH" and the file "/etc/ld.so.conf" serve more or less the same purpose and you will have to change only one of these (see above, if any at all). The effect of the variable setting lasts only for the session (which is, in this case, the terminal window you issued it in - once you close that its effect is gone), while changing the file effects the whole system (all users). You will need root privileges to do so.
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