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I'm using elementary OS 5.1.7 Hera (based on Ubuntu 18.04.4 LT) I created a very simple c program:

#include <stdio.h>

int main()
{
  printf( "Hello World!\n" );

  return 0;
}

and executing the following :

gcc -o simple simple.c

I get this error:

/usr/lib/gcc/x86_64-linux-gnu/7/cc1: error while loading shared libraries: libisl.so.19: cannot open shared object file: No such file or directory

Any suggestions?

BZKN
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navy1978
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  • Did you try googling the error? There are lots of similar questions: https://stackoverflow.com/search?q=%5Bgcc%5D+libisl – Barmar Apr 13 '21 at 19:54
  • yes nothing helped , this was interesting > https://stackoverflow.com/questions/33734143/gcc-unable-to-find-shared-library-libisl-so/55668116#55668116 but the link reported there doesnt work , do you think I need to install isl? – navy1978 Apr 13 '21 at 19:59
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    I'm not sure why this needs `libisl`, that seems like a specialized library. – Barmar Apr 13 '21 at 20:00
  • in any case trying to install that library I get this: libisl19 is already the newest version (0.20-N~2~ubuntu18.04.1). – navy1978 Apr 13 '21 at 20:01
  • I think the problem is that it's installed in a different place than GCC expects it. – Barmar Apr 13 '21 at 20:02
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    Try running `strace -o trace.txt gcc -o simple simple.c` and then `grep '\.so' trace.txt'` to see the location it actually looks for `libisl.so`. Install `libisl.so` there. – Zoso Apr 13 '21 at 20:14
  • I have unstallaed the library and reinstalled it and it works now... ;) – navy1978 Apr 13 '21 at 21:13

1 Answers1

0

I solved with these:

sudo apt-get remove libisl19 
sudo apt update
sudo apt install build-essential
navy1978
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