c2hs-0.25.1: tests/bugs/issue-128/issue128.h
#include <stdbool.h>
int f1(int n, bool incr);
bool f2(int n);
typedef struct {
int a;
bool b;
} tststruct;
tststruct *make_tststruct(int ain);
void free_tststruct(tststruct *s);
void mod_tststruct(tststruct *s, int da, bool incr);