c: add a workaround for SQLITE_TRANSIENT being mistranslated

See https://github.com/ziglang/zig/issues/15893

zig's translate-c creates an invalid type for SQLITE_TRANSIENT on some
architectures (aarch64, riscv64 and others).

We can work around this by making a C function that returns -1 cast to
the proper destructor type and use that from zig (thanks
https://github.com/Cloudef for mentioning this in this comment: https://github.com/ziglang/zig/issues/15893#issuecomment-1925092582)

1 files changed, 5 insertions, 0 deletions

diff --git a/c/workaround.c b/c/workaround.c
new file mode 100644
index 0000000..592d33d
--- /dev/null
+++ b/c/workaround.c
@@ -0,0 +1,5 @@
+#include "workaround.h"
+
+my_sqlite3_destructor_type sqliteTransientAsDestructor() {
+  return (my_sqlite3_destructor_type)-1;
+}