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Avoid "multiple definition of `mystruct'" error from `ld`:
Submitted upstream at https://github.com/idris-lang/Idris-dev/issues/4914
--- a/test/ffi008/ffi008.h 1969-12-31 18:00:01.000000000 -0600
+++ a/test/ffi008/ffi008.h 2022-04-13 00:32:35.561262598 -0500
@@ -10,7 +10,7 @@
int16_t b;
};
-struct test2 mystruct;
+extern struct test2 mystruct;
int size1(void);
int size2(void);
--- a/test/ffi008/ffi008.c 1969-12-31 18:00:01.000000000 -0600
+++ a/test/ffi008/ffi008.c 2022-04-13 00:32:53.145186302 -0500
@@ -11,6 +11,8 @@
return sizeof(struct test2);
}
+struct test2 mystruct;
+
void print_mystruct(void) {
printf("a: %d b: %d\n", mystruct.a, mystruct.b);
}
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