[ubuntu] libdl.so not found

Hi All.I face the following errors when compiling libmtp in my ArchLinux desktoplibtool: link: gcc -march=i686 -mtune=generic -O2 -pipe -Wall -Wmissing-prototypes -Wl,--hash-style=gnu -Wl,--as-needed -o .libs/mtp-connect connect.o delfile.o getfile.o newfolder.o sendfile.o sendtr.o pathutils.o util.o ../src/.libs/libmtp.so ../src/.libs/libmtp.so: undefined reference to `get_usb_device_timeout&#039

i am trying to compile one library called liboil. when i compile that i am getting this error. I goggled for this error its totally confusing for me. please help me.

Code: Making all in uberopt make[3]: Entering directory `/mnt/freescale/sources/liboil-0.3.16/examples/uberopt'

I was trying to compile my reader-writer code in Operating System, using semaphores and got this on the terminal:

undefined reference to `sem_init'

undefined reference to `pthread_create'

undefined reference to `pthread_join'

undefined reference to `sem_wait'

What all packages do I need to include?

I recently decided to learn gtk+, so I installed the gtk3 developement package which contains all the necessary libraries, then I just wrote a simple program test which is supposed to display a gtk window simply and compiles it with the command below :

gcc `pkg-config --cflags --libs gtk+-3.0` main.c -o test

And the problem is at link time where I'm getting undefined reference to all the functi

I am getting undefined reference error while building a simple example with freetype2.

gcc `/usr/bin/freetype-config --cflags` `/usr/bin/freetype-config --libs` a.c /tmp/ccuSpdkr.o: In function `main': a.c:(.text+0x10): undefined reference to `FT_Init_FreeType' collect2: error: ld returned 1 exit status

I am on Ubuntu 12.10 x64.

[ocean@slackware-mp 13:37:26]$ gcc -o test testsqlite3.c -lsqlite3 /usr/lib/gcc/i486-slackware-linux/4.4.4/../../../libsqlite3.so: undefined reference to `dlsym' /usr/lib/gcc/i486-slackware-linux/4.4.4/../../../libsqlite3.so: undefined reference to `dlsym' /usr/lib/gcc/i486-slackware-linux/4.4.4/../../../libsqlite3.so: undefined reference to `dlerror'

Dear All, I am trying to compile a research program to do protest event analysis, but when I run 'make' i obtain an extremely long list of errors, which finishes in this way

Code: modify.cp:(.text+0x12bd): undefined reference to `waddnstr' modify.cp:(.te:(t+0x12c2): undefined reference to `stdscr' modify.cp:(.text+0x12d2): undefined reference to `waddch' modify.cp:(.text+0x140b): undefined re

Downloaded and compiled UMFPACK [1] and it went well copied out the example program Tim Davis has written up and I got this error

me@sun:~/umfpack$ cc ex.c /tmp/ccBVFK6B.o: In function `main': ex.c:(.text+0x4a): undefined reference to `umfpack_di_symbolic' ex.c:(.text+0x7b): undefined reference to `umfpack_di_numeric' ex.c:(.text+0x87): undefined reference to `umfpack_di_free_symbolic' ex.c:(.tex

i have got such wrong message when i run a program. see below: undefined reference to fftw_malloc' f11.c:(.text+0x24d): undefined reference tofftw_malloc' f11.c:(.text+0x260): undefined reference to fftw_malloc' f11.c:(.text+0x273): undefined reference tofftw_malloc' f11.c:(.text+0x286): undefined reference to `fftw_malloc' and so on ..... whats problem exactly?