maybe this is too naive a toy example, but it works:
`clib.c`
int sum(int a,int b){return a+b;}
Run
`nimlib.nim`
{.compile:"clib.c".}
#proc sum(a,b:int32):int32{.importc.}
## as @auxym says; if it's not static, it's exported
## even if you dont use it in the nim file
when compileOption("app","lib"):
{.push,dynlib.}
proc mul(a,b:int32):int32{.exportc.} = a * b
Run
`nimlib.h`
int sum(int a, int b);
int mul(int a, int b);
Run
`main.c`
#include "nimlib.h"
#define i(x) *a[i] - '0'
int main(int _, char** a){
return mul(sum(i(1),i(2)),sum(i(3),i(4)));
}
Run
building and running:
$ nim c -d:release --app:staticLib --noMain nimlib.nim
$ gcc main.c -L. -l:libnimlib.a
--OR--
$ nim c -d:release --app:lib --noMain nimlib.nim
$gcc main.c -L. -Wl,-rpath,. -lnimlib
$ ./a.out 1 2 3 4; echo $?
21
Run
