How to run C program using pari library with gcc?

Question

#include<stdio.h>
#include<pari/pari.h>
int main(void)
{
 GEN i,j,k;
 pari_init(500000,2);
 i=gun;
 j=stoi(3);
 k=gadd(i,j);
 printf("1+3=%s",GENtostr(k));
 return 0;
}

$ I'm a beginner to work on pari library in C. I've installed pari library in cygwin64 with gcc. Any C/C++ program is running. That is no problem with gcc compiler. But when I was trying to use pari library for the above sample program. I was getting many errors as follows.

Moreover, I use the command $ gcc test-pari.c to run the program. Actually I also need to know how to run a program written using pari library in C. Do I need to show some library explicitly during run. Any suggestions?

/tmp/cc7ELKK4.o:test-pari.c:(.text+0x87): undefined reference to `pari_err'
/tmp/cc7ELKK4.o:test-pari.c:(.text+0x87): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `pari_err'
/tmp/cc7ELKK4.o:test-pari.c:(.text+0x230): undefined reference to `pari_err'
/tmp/cc7ELKK4.o:test-pari.c:(.text+0x230): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `pari_err'
/tmp/cc7ELKK4.o:test-pari.c:(.text+0x253): undefined reference to `pari_init'
/tmp/cc7ELKK4.o:test-pari.c:(.text+0x253): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `pari_init'
/tmp/cc7ELKK4.o:test-pari.c:(.text+0x27f): undefined reference to `gadd'
/tmp/cc7ELKK4.o:test-pari.c:(.text+0x27f): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `gadd'
/tmp/cc7ELKK4.o:test-pari.c:(.text+0x28f): undefined reference to `GENtostr'
/tmp/cc7ELKK4.o:test-pari.c:(.text+0x28f): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `GENtostr'
/tmp/cc7ELKK4.o:test-pari.c:(.rdata$.refptr.gen_1[.refptr.gen_1]+0x0): undefined reference to `gen_1'
/tmp/cc7ELKK4.o:test-pari.c:(.rdata$.refptr.gen_0[.refptr.gen_0]+0x0): undefined reference to `gen_0'
/tmp/cc7ELKK4.o:test-pari.c:(.rdata$.refptr.bot[.refptr.bot]+0x0): undefined reference to `bot'
/tmp/cc7ELKK4.o:test-pari.c:(.rdata$.refptr.avma[.refptr.avma]+0x0): undefined reference to `avma'
collect2: error: ld returned 1 exit status

Answer 1

You have to add, at least, -l option to your command:

gcc test-pari.c -lpari

Best using:

gcc test-pari.c -Wall -Wextra -pedantic -lpari -std=c11 -g -o test-pari