Hello
I want to make daophot fortran codes, so i type make.But after making some codes this error apears:
/usr/bin/ld: cannot find -lgcc_s
collect2: ld returned 1 exit status
make: *** [daophot] Error 1
By the way i added libraries to /etc/apt/sources.list and i have ubunto11.04 and i installed f77.
please help me
thank you

lgcc_s = libgcc_s.so

The old g77 package from Ubuntu 8.04 Hardy assumes /lib/libgcc_s.so.1

Ubuntu 11.** uses a hideaway location, like :
/lib/i386-linux-gnu/libgcc_s.so.1
http://packages.ubuntu.com/natty/i386/libgcc1/filelist
http://packages.ubuntu.com/natty/libgcc1

The libgcc_s.so link is inside your gcc-3.4 :
/usr/lib/gcc/i486-linux-gnu/3.4.6/libgcc_s.so
http://packages.ubuntu.com/hardy-upd...c-3.4/filelist


Solution : Some applications will accept a link :
cd /lib/ && sudo ln -s i386-linux-gnu/libgcc_s.so.1

Or : If it must be Ubuntu, use a version,
more suitable for development : Ubuntu 10.04 .

Several special applications can only be compiled in 11.04
by using specially built compilers.
Ubuntu 11.10 is even worse. No extra compilers seem to work.

..

thanks for your help.
I do your solution but still this error exists.
is there another solution???
my laptop is hp probook and it can not install ubuntu10.10 or 9.10 or ... .It just can install ubuntu11.04.
please take me your help.

thanks a lot

OK, I did create a gcc34-compat, g++34-compat for Ubuntu 11.04,
32bits, some months ago. But with no g77 / f77.
gcc34 https://docs.google.com/open?id=0B7S...gxNGI0MTQ4YTY4
g++34 https://docs.google.com/open?id=0B7S...RkMWIxMzIyNDEz


I will try, if it is possible to include g77 in a new build.
Is your OS 32bits or 64bits ?
( The command 'uname -m' will tell.)

..

it's 32bit
my version of gcc is 4.5.2 and it's upper than your version.
How i can change gcc version?

thank you

You can have as many versions of gcc / g++ as you want,
installed at the same time.

The default Ubuntu 11.04 compilers are gcc-4.4, g++-4.4,
gcc-4.5, g++-4.5, gfortran-4.4, gfortran-4.5 .

When g77 was installed, gcc-3.4 was also installed, as dependency.
Binary name = gcc-3.4 . The gcc34-compat : gcc34 ( g++34 ).
I.e. all default and extra compilers have unique binary names :
The commands 'ls /usr/bin/gcc*' and 'ls /usr/bin/g++*' will show.

Using, example :
export CC=gcc-4.4 CXX=g++-4.4 F=gfortran-4.4 && <other-command>

..

I was getting this same error, "/usr/bin/ld: cannot find -lgcc_s" trying to run configure on an emacs 24.3 bundle on an Amazon Linux box with gcc 4.7.2. knudfl's first response was my best clue as to what the problem was, but I had to dig to find the specifics.

I isolated the problem by creating the simple test file that was failing during configure, conftest.c, and ran:

strace -f gcc conftest.c > strace.dump 2>&1

so I could see what /usr/bin/ld was looking for and where. Ultimately the solution was:

cd /lib64
sudo ln -s libgcc_s-4.7.2-20120921.so.1 libgcc_s.so.1
sudo ln -s libgcc_s-4.7.2-20120921.so.1 libgcc_s.so