Make declarations static for covr (#5910)

src/froll.c

@@ -429,7 +429,7 @@ void frollmax(unsigned int algo, double *x, uint64_t nx, ans_t *ans, int k, int
   if (verbose)
     snprintf(end(ans->message[0]), 500, _("%s: processing algo %u took %.3fs\n"), __func__, algo, omp_get_wtime()-tic);
 }
-inline void windowmax(double *x, uint64_t o, int k, /* max of current window */ double *w, /* index of w within window */ uint64_t *iw) {
+static inline void windowmax(double *x, uint64_t o, int k, /* max of current window */ double *w, /* index of w within window */ uint64_t *iw) {
   for (int i=0; i<k-1; i++) {
     //Rprintf("windowmax iteration %d, offset %d, first x val %f, testing x[o+i-k+1] >= w[0]: x[%d-%d+1] >= w[0]: %f >= %f: %d\n", i, o, x[o], i, k, x[o+i-k+1], w[0], x[o+i-k+1] >= w[0]);
     if (x[o+i-k+1] >= w[0]) { // what if that is never satisfied? test!
@@ -438,7 +438,7 @@ inline void windowmax(double *x, uint64_t o, int k, /* max of current window */
     }
   }
 }
-inline void windowmaxnarm(double *x, uint64_t o, int k, bool narm, /* NA counter */ int *nc, double *w, uint64_t *iw) {
+static inline void windowmaxnarm(double *x, uint64_t o, int k, bool narm, /* NA counter */ int *nc, double *w, uint64_t *iw) {
   for (int i=0; i<k-1; i++) {
     //Rprintf("windowmax iteration %d, offset %d, first x val %f, testing x[o+i-k+1] >= w[0]: x[%d-%d+1] >= w[0]: %f >= %f: %d\n", i, o, x[o], i, k, x[o+i-k+1], w[0], x[o+i-k+1] >= w[0]);
     if (R_FINITE(x[o+i-k+1])) {