Using 'LIBS' in scons 'Program' command failed to find static library, why?

Question

I've got a 'n.c' as main function, and 'o.c' as import function, like below:

$ cat n.c o.c
int f();
int main(){
  f();
  return 0;
}
#include<stdio.h>
int f(){
  printf("hello\n");
  return 2;
}

Then scons file like below:

Library('o.c')
Program('n.c',LIBS=['o'])

What I hope here is to compile o.c and generate libo.a(OK), and n.c will use this '.a' to generate final executable. So I specified LIBS=['o'], in hoep that it will specify an archive file to find libo.a library. But:

$ scons -Q
gcc -o n n.o -lo
/usr/bin/ld: cannot find -lo
collect2: error: ld returned 1 exit status
scons: *** [n] Error 1

Actually, scons interpreted my command to be '-lo', which is to find a dynamic shared library. This is not what I wanted, because during linking, archive is used like object files. Does '-l' work with archive files, and why scons interprets LIBS to use dynamic link shared libraries?

Thanks.

dirkbaechle · Accepted Answer · 2016-10-03 15:47:20Z

2

You also need to specify the path where to search for libraries, in this case:

Program('n.c',LIBS=['o'], LIBPATH=['.'])

Please also check chapter 4 "Building and Linking with Libraries" of our UserGuide, which does not only explain how to create and work with Libraries, it further states that your claim from above "SCons interprets LIBS to use dynamic link shared libraries" is plain wrong. Otherwise the object files would end with *.os instead...

answered Oct 3, 2016 at 15:47

dirkbaechle

4,06216 silver badges18 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Using 'LIBS' in scons 'Program' command failed to find static library, why?

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related