net-p2p/gtk-gnutella: fix build on powerpc*

Rename callframe to fix redefinition:
memusage.c:538:8: error: redefinition of 'callframe'
struct callframe {
       ^
/usr/include/machine/frame.h:88:8: note: previous definition is here
struct callframe {

net-p2p/gtk-gnutella/files/patch-src_lib_memusage.c

@@ -0,0 +1,59 @@
+--- src/lib/memusage.c.orig	2021-10-27 02:46:02 UTC
++++ src/lib/memusage.c
+@@ -535,25 +535,25 @@ memusage_set_stack_accounting(memusage_t *mu, bool on)
+ 	MEMUSAGE_THREAD_UNLOCK(mu);
+ }
+
+-struct callframe {
++struct callframes {
+ 	size_t calls;
+ 	const struct stackatom *frame;
+ 	const struct memusage_counter *mc;
+ };
+
+ /**
+- * qsort() callback for sorting callframe items by decreasing call amount.
++ * qsort() callback for sorting callframes items by decreasing call amount.
+  */
+ static int
+ callframe_cmp(const void *p1, const void *p2)
+ {
+-	const struct callframe *f1 = p1, *f2 = p2;
++	const struct callframes *f1 = p1, *f2 = p2;
+
+ 	return CMP(f2->calls, f1->calls);	/* Decreasing order */
+ }
+
+ struct callframe_filler {
+-	struct callframe *array;
++	struct callframes *array;
+ 	size_t capacity;
+ 	size_t count;
+ 	const memusage_t *mu;
+@@ -568,7 +568,7 @@ callframe_filler_add(const void *key, void *value, voi
+ {
+ 	struct callframe_filler *filler = data;
+ 	struct memusage_counter *mc = value;
+-	struct callframe *f;
++	struct callframes *f;
+
+ 	memusage_counter_check(mc);
+ 	g_assert(filler->count < filler->capacity);
+@@ -648,7 +648,7 @@ memusage_sort_frames(const memusage_t *mu, bool period
+ static void
+ memusage_sorted_frame_dump_log(logagent_t *la, const memusage_t *mu,
+ 	const char *name, const char *what,
+-	struct callframe *array, size_t count, hash_table_t *all, size_t recurses)
++	struct callframes *array, size_t count, hash_table_t *all, size_t recurses)
+ {
+ 	size_t i;
+ 	const char *event;
+@@ -664,7 +664,7 @@ memusage_sorted_frame_dump_log(logagent_t *la, const m
+ 	event = (0 == mu->width) ? "size" : "calls";
+
+ 	for (i = 0; i < count; i++) {
+-		struct callframe *cf = &array[i];
++		struct callframes *cf = &array[i];
+ 		struct memusage_counter *mc;
+ 		size_t total;
+