issue with #define stderr (stderr) + openmp

gistfile1.txt

$ make
gcc -fopenmp -o main-glibc main.c
musl-gcc -fopenmp -o main-musl main.c
In file included from main.c:1:0:
main.c: In function ‘main’:
main.c:4:43: error: expected identifier before ‘(’ token
 #pragma omp parallel default(none) shared(stderr)
                                           ^
Makefile:2: recipe for target 'all' failed
make: *** [all] Error 1

main.c

#include <stdio.h>

int main(int argc, char *argv[]) {
#pragma omp parallel default(none) shared(stderr)
	{
		fprintf(stderr, "test\n");
	}
	return 0;
}

Makefile

all:
	gcc -fopenmp -o main main.c
	musl-gcc -fopenmp -o main-musl main.c