Problem: On 32-bit architectures, musl libc makes heavy use of
__typeof__ as part of its __REDIR macro for optional backwards
compatibility with 32-bit time_t values. Unfortunately, the
__typeof__ keyword is not supported by the LuaJIT C parser.
Solution: Filter out the keyword in filter_complex_blocks.
(cherry picked from commit db2c3d1143)
Problem: This keyword is used by GCC and Clang to prevent -Wpedantic
(and other options) from emitting warnings for many GNU C extensions.
This is used heavily in Alpine Linux through musl libc and
foritfy-headers. Without filtering the __extension__ keyword some type
definitions are duplicated. For example, timeval is defined once as
struct timeval { time_t tv_sec; suseconds_t tv_usec; };
and once as:
__extension__ struct timeval { time_t tv_sec; suseconds_t tv_usec; };
Without this patch, the LuaJIT C parser doesn't recognize that these
definitions are equivalent, causing unit test to fail on Alpine Linux.
Solution: Filter out the keyword in filter_complex_blocks.
Add more filters so that LuaJIT can parse headers on macOS 14.
The system headers use a style of enum introduced in C++11 (and allowed
as an extension in C by clang) of the form:
enum Name : Type {
The system headers also use bitfields in the mach_vm_range_recipe* types:
struct Foo { int bar : 32; }
Neither of these constructs can be parsed by LuaJIT, so filter the lines
out. Neither of these declarations are used by neovim's unittests.
There is a (now closed) issue about bitfields for LuaJIT:
https://github.com/LuaJIT/LuaJIT/issues/951Fixes#26145.
