Actually fix build on old GCC

Probably.

1 files changed, 6 insertions, 5 deletions

diff --git a/lv2/atom/forge-overflow-test.c b/lv2/atom/forge-overflow-test.c
index daad3f8..b9beacc 100644
--- a/lv2/atom/forge-overflow-test.c
+++ b/lv2/atom/forge-overflow-test.c
@@ -27,8 +27,9 @@
 static int
 test_string_overflow(void)
 {
-	static const size_t max_chars = 15;
-	static const size_t capacity  = 8 + max_chars + 1;
+#define MAX_CHARS 15
+
+	static const size_t capacity  = sizeof(LV2_Atom_String) + MAX_CHARS + 1;
 	static const char*  str       = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 
 	uint8_t*       buf = (uint8_t*)malloc(capacity);
@@ -37,7 +38,7 @@ test_string_overflow(void)
 	lv2_atom_forge_init(&forge, &map);
 
 	// Check that writing increasingly long strings fails at the right point
-	for (size_t count = 0; count < max_chars; ++count) {
+	for (size_t count = 0; count < MAX_CHARS; ++count) {
 		lv2_atom_forge_set_buffer(&forge, buf, capacity);
 
 		const LV2_Atom_Forge_Ref ref =
@@ -49,7 +50,7 @@ test_string_overflow(void)
 
 	// Failure writing to an exactly full forge
 	LV2_Atom_Forge_Ref ref = 0;
-	if ((ref = lv2_atom_forge_string(&forge, str, max_chars + 1))) {
+	if ((ref = lv2_atom_forge_string(&forge, str, MAX_CHARS + 1))) {
 		return test_fail("Successfully wrote past end of buffer\n");
 	}
 
@@ -66,7 +67,7 @@ test_string_overflow(void)
 static int
 test_literal_overflow(void)
 {
-	static const size_t capacity = 16 + 2;
+	static const size_t capacity = sizeof(LV2_Atom_Literal) + 2;
 
 	uint8_t*           buf = (uint8_t*)malloc(capacity);
 	LV2_URID_Map       map = { NULL, urid_map };