How can I do it ?
Thanks a lot.

For example if you are using bash:
PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
export PKG_CONFIG_PATH

You can find default path like this:
locate pkg-config
and it usually is :
/usr/bin/pkg-config

You should knw where the new libraries are (=where to set PKG_CONFIG_PATH). This can give hins:
locate pkgconfig


I hope this helps ?

1 members found this post helpful.

Thanks a lot,that command works.
I've an old Glib-2.2.3 installed at prefix /usr
and the new Glib-2.4.6 at the prefix /usr/local .
Pango config shows this log >>>>>
checking for pkg-config... (cached) /usr/bin/pkg-config
checking for GLIB - version >= 2.4.0...
*** 'pkg-config --modversion glib-2.0' returned 2.4.6, but GLIB (2.2.3)
*** was found! If pkg-config was correct, then it is best
*** to remove the old version of GLib. You may also be able to fix the error
*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing
*** /etc/ld.so.conf. Make sure you have run ldconfig if that is
*** required on your system.
*** If pkg-config was wrong, set the environment variable PKG_CONFIG_PATH
*** to point to the correct configuration files

I prefer keep also the old version of Glib , then how can I modify LD_LIBRARY_PATH
or what have I to put in /etc/ld.so.conf ???

Sorry...I'm a beginner......Thanks a lot in advance.
Regards.

both LD_LIBRARY_PATH and /etc/ld.so.conf contain list of directories to search for libraries.
LD_LIBRARY_PATH is higher preference, so it is checked first.
Just do
export LD_LIBRARY_PATH=/usr/local
or
export LD_LIBRARY_PATH=/usr/local/lib
depending where those libraries are. (/usr/lib is always searched since it is default location, so you do not have to put it there.)
If you need to define multiple library directories separate those with ;

You can also enter line
/usr/local/lib
or
/usr/local
into /etc/ld.so.conf but this is checked after the default location, so it probably does not help you.
for example I have:
cat /etc/ld.so.conf
/usr/kerberos/lib
/usr/X11R6/lib
/usr/lib/sane
/usr/local/qt/lib
/usr/local/lib


man ld
might also be useful.

Many thanks !

I just had the same problem - thanks guys, this thread really helped me out

Hi,
My first prog. on gstreamer project is simpleAudioPlayer.c which is not working,perhaps due to decoder's problem.
The decoder plugin "mad" is NOT found as shows during execution .
How write to exact syntax and others requirements for that???

my code is:
include<gst/gst.h>
main(int argc, char *argv[ ])
{
GstElement *pipeline, *filesrc, *decoder, *audiosink;
gst_init(&argc, &argv);

if (argc != 2) {
g_print ("usage: %s <mp3 filename>\n", argv[0]);
exit (-1);
}
pipeline = gst_pipeline_new ("pipeline");
filesrc = gst_element_factory_make ("filesrc", "disk_source");
if(filesrc==NULL)
{
g_print("filesrc=NULL\n");
exit(-1);
}
g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
decoder = gst_element_factory_make ("mad", "decode");
if(decoder==NULL)
{
g_print("decoder=NULL %x\n",decoder);
exit(-1);
}
g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
decoder = gst_element_factory_make ("mad", "decode");// this does not do its job properly
if(decoder==NULL) //This statement seem to be true when i run the prog. why not mad could not found????
{
g_print(" decoder address=%x\n",decoder); //it prints : decoder address=0, always !!!
exit(-1);
}
g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
audiosink = gst_element_factory_make ("osssink", "play_audio");
if(audiosink==NULL)
{
g_print("audiosink=NULL\n");
exit(-1);
}
g_objectt_set (G_OBJECT (filesrc), "location", argv[1], NULL);
gst_bin_add_many (GST_BIN (pipeline), filesrc, decoder, audiosink, NULL);
gst_element_link_many (filesrc, decoder, audiosink, NULL);
gst_element_set_state (pipeline, GST_STATE_PLAYING);
while (gst_bin_iterate (GST_BIN (pipeline)));
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_object_unref (GST_OBJECT (pipeline));
exit (0);
}
compilation:
gcc simpleAudioPlayer.c -o myPlayer `pkg-config gstreamer --cflags --libs` // is this OK???
running as:
. /myPlayer myFavSongs
Output is:
decoder =0 // instead of sound , where is the problem?

Hi,
i get this problem during ./configure :

./configure: line 21810: PKG_PROG_PKG_CONFIG: command not found
pkg-config is not in your $PATH. Please ensure it is.
Read the manual page for you shell as to how to extend your path.
configure: error: Cannot find pkg-config

however i find this when i go env :

PKG_CONFIG_PATH=/usr/lib/pkgconfig


what can be wrong here? ./configure keeps giving me the same error

thanks

check to see where your pkg-config executable is (or if it is installed). just do

whereis pkg-config

if it is installed it should show the path of the binary and the man pages. if the binary is in /usr/sbin or /sbin you will have to be root or use sudo to run ./configure. if it is in /usr/bin /bin or something else make sure that the $PATH variable has this directory included.

plz help me regard this

I've an old Glib-2.6.x installed at prefix /usr
and the new Glib-2.4.8 at the prefix /usr/local .
Pango config shows this log >>>>>
checking for pkg-config... (cached) /usr/bin/pkg-config
checking for GLIB - version >= 2.4.0...
*** 'pkg-config --modversion glib-2.0' returned 2.4.6, but GLIB (2.2.3)
*** was found! If pkg-config was correct, then it is best
*** to remove the old version of GLib. You may also be able to fix the error
*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing
*** /etc/ld.so.conf. Make sure you have run ldconfig if that is
*** required on your system.
*** If pkg-config was wrong, set the environment variable PKG_CONFIG_PATH
*** to point to the correct configuration files

I prefer keep also the old version of Glib , then how can I modify LD_LIBRARY_PATH
or what have I to put in /etc/ld.so.conf ???

Sorry...I'm a beginner......Thanks a lot in advance.
Regards.[/QUOTE]

Thanks fatcat, you saved my day

hello all
i want install xfkc for xfce4.2.3.2 when i configure it this error appear :
checking XFCE4_UTIL_LIBS... -lxfce4util -lglib-2.0
checking for libxfcegui4-1.0 >= 4.3.99.1... found, but 4.2.3
*** The required package libxfcegui4-1.0 was found on your system,
*** but the installed version (4.2.3) is too old.
*** Please upgrade libxfcegui4-1.0 to atleast version 4.3.99.1, or adjust
*** the PKG_CONFIG_PATH environment variable if you installed
*** the new version of the package in a nonstandard prefix so
*** pkg-config is able to find it.

i have this Package installed:
[root@localhost ~]# rpm -qa |grep libxfcegui4
libxfcegui4-4.4.2-1.fc8
libxfcegui4-devel-4.4.2-1.fc8
is it a good version for me?
and i have:
[root@localhost ~]# locate pkg-config
/usr/bin/pkg-config
/usr/share/man/man1/pkg-config.1.gz
/usr/share/zsh/4.3.4/functions/_pkg-config

and with:
[root@localhost ~]# locate pkgconfig
/usr/local/lib/pkgconfig
/usr/share/pkgconfig
... (many directory)

which directory should i choose for this line:
export PKG_CONFIG_PATH=(directory???)
and should i type this line in terminal ?i do this but nothing down .what should i do?

firsly i want to install gnu c compiler on my desktop pc but i fail to install gcc compiler after installing linux8.please help me in this regard

jeet3886@rediffmail.
Please do not take over other peoples threads - create your own and give it a meaningful title.
Also try reading documentation for your distribution first - they tell you how installing software is handeled.
linux8 is not a distributions name BTW

I hope you see this.. Thank you very much dude. your example were very helpful.