SourceKit-LSP doesn't work with `swift-for-wasm-examples` package

[turbolent]

Is there any way to configure the swift-for-wasm-examples package so that development with SourceKit-LSP works correctly?

When opening LadderFilter.swift, an error appears for import VultDSP:

Could not build C module 'VultDSP' SourceKit 

And in the errors I get

<wasi/api.h> only supports wasm32; doesn't yet support wasm64
...

In the output from SourceKit-LSP I can see:

sourcekit: [1:getCursorInfo:426.8573] error creating ASTInvocation: warning: option '-incremental' is only supported in swift-driver
<unknown>:0: warning: option '-incremental' is only supported in swift-driver
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:2:10: note: in file included from <module-includes>:2:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h:19:17: error: unknown type name 'uint16_t'
static __inline uint16_t __bswap16(uint16_t __x)
                ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:2:10: note: in file included from <module-includes>:2:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h:19:36: error: unknown type name 'uint16_t'
static __inline uint16_t __bswap16(uint16_t __x)
                                   ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:2:10: note: in file included from <module-includes>:2:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h:24:17: error: unknown type name 'uint32_t'
static __inline uint32_t __bswap32(uint32_t __x)
                ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:2:10: note: in file included from <module-includes>:2:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h:24:36: error: unknown type name 'uint32_t'
static __inline uint32_t __bswap32(uint32_t __x)
                                   ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:2:10: note: in file included from <module-includes>:2:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h:29:17: error: unknown type name 'uint64_t'
static __inline uint64_t __bswap64(uint64_t __x)
                ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:2:10: note: in file included from <module-includes>:2:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/endian.h:29:36: error: unknown type name 'uint64_t'
static __inline uint64_t __bswap64(uint64_t __x)
                                   ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:27:2: error: <wasi/api.h> only supports wasm32; doesn't yet support wasm64
#error <wasi/api.h> only supports wasm32; doesn't yet support wasm64
 ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:31:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:31:
#include <stdint.h>
         ^
/home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/stdint.h:52:16: note: in file included from /home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/stdint.h:52:
# include_next <stdint.h>
               ^
/usr/include/stdint.h:26:10: note: in file included from /usr/include/stdint.h:26:
#include <bits/libc-header-start.h>
         ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:74:5: error: function-like macro '__GLIBC_USE' is not defined
#if __GLIBC_USE (IEC_60559_BFP_EXT) || __GLIBC_USE (ISOC2X)
    ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:31:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:31:
#include <stdint.h>
         ^
/home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/stdint.h:52:16: note: in file included from /home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/stdint.h:52:
# include_next <stdint.h>
               ^
/usr/include/stdint.h:26:10: note: in file included from /usr/include/stdint.h:26:
#include <bits/libc-header-start.h>
         ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:80:5: error: function-like macro '__GLIBC_USE' is not defined
#if __GLIBC_USE (IEC_60559_BFP_EXT) || defined __STDC_WANT_IEC_60559_EXT__
    ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:31:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:31:
#include <stdint.h>
         ^
/home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/stdint.h:52:16: note: in file included from /home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/stdint.h:52:
# include_next <stdint.h>
               ^
/usr/include/stdint.h:26:10: note: in file included from /usr/include/stdint.h:26:
#include <bits/libc-header-start.h>
         ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:97:5: error: function-like macro '__GLIBC_USE' is not defined
#if __GLIBC_USE (IEC_60559_FUNCS_EXT) || __GLIBC_USE (ISOC2X)
    ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:31:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:31:
#include <stdint.h>
         ^
/home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/stdint.h:52:16: note: in file included from /home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/stdint.h:52:
# include_next <stdint.h>
               ^
/usr/include/stdint.h:265:5: error: function-like macro '__GLIBC_USE' is not defined
#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
    ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:41:16: error: static assertion failed due to requirement 'alignof(void *) == 4': non-wasi data layout
_Static_assert(_Alignof(void*) == 4, "non-wasi data layout");
               ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:41:32: note: expression evaluates to '8 == 4'
_Static_assert(_Alignof(void*) == 4, "non-wasi data layout");
                               ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:51:16: error: static assertion failed due to requirement 'sizeof(unsigned long) == 4': witx calculated size
_Static_assert(sizeof(__wasi_size_t) == 4, "witx calculated size");
               ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:51:38: note: expression evaluates to '8 == 4'
_Static_assert(sizeof(__wasi_size_t) == 4, "witx calculated size");
                                     ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:52:16: error: static assertion failed due to requirement 'alignof(unsigned long) == 4': witx calculated align
_Static_assert(_Alignof(__wasi_size_t) == 4, "witx calculated align");
               ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:52:40: note: expression evaluates to '8 == 4'
_Static_assert(_Alignof(__wasi_size_t) == 4, "witx calculated align");
                                       ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:689:16: error: static assertion failed due to requirement 'sizeof(__wasi_iovec_t) == 8': witx calculated size
_Static_assert(sizeof(__wasi_iovec_t) == 8, "witx calculated size");
               ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:689:39: note: expression evaluates to '16 == 8'
_Static_assert(sizeof(__wasi_iovec_t) == 8, "witx calculated size");
                                      ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:690:16: error: static assertion failed due to requirement 'alignof(__wasi_iovec_t) == 4': witx calculated align
_Static_assert(_Alignof(__wasi_iovec_t) == 4, "witx calculated align");
               ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:690:41: note: expression evaluates to '8 == 4'
_Static_assert(_Alignof(__wasi_iovec_t) == 4, "witx calculated align");
                                        ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:692:16: error: static assertion failed due to requirement '__builtin_offsetof(__wasi_iovec_t, buf_len) == 4': witx calculated offset
_Static_assert(offsetof(__wasi_iovec_t, buf_len) == 4, "witx calculated offset");
               ^
/home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/__stddef_offsetof.h:16:24: note: expanded from macro 'offsetof'
#define offsetof(t, d) __builtin_offsetof(t, d)
                       ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:692:50: note: expression evaluates to '8 == 4'
_Static_assert(offsetof(__wasi_iovec_t, buf_len) == 4, "witx calculated offset");
                                                 ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:710:16: error: static assertion failed due to requirement 'sizeof(__wasi_ciovec_t) == 8': witx calculated size
_Static_assert(sizeof(__wasi_ciovec_t) == 8, "witx calculated size");
               ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:710:40: note: expression evaluates to '16 == 8'
_Static_assert(sizeof(__wasi_ciovec_t) == 8, "witx calculated size");
                                       ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: note: while building module 'dlmalloc' imported from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:
#include <features.h>
         ^
<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/errno.h:6:
#include <wasi_api.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:711:16: error: static assertion failed due to requirement 'alignof(__wasi_ciovec_t) == 4': witx calculated align
_Static_assert(_Alignof(__wasi_ciovec_t) == 4, "witx calculated align");
               ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/dlmalloc/include/wasi_api.h:711:42: note: expression evaluates to '8 == 4'
_Static_assert(_Alignof(__wasi_ciovec_t) == 4, "witx calculated align");
                                         ^
<unknown>:0: error: too many errors emitted, stopping now
<module-includes>:1:10: note: in file included from <module-includes>:1:
#include "/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/VultDSP/include/waveforms.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/VultDSP/include/waveforms.h:1:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/VultDSP/include/waveforms.h:1:
#include "../out.h"
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/VultDSP/include/../out.h:5:10: note: in file included from /home/bastian/Downloads/swift-for-wasm-examples-main/Sources/VultDSP/include/../out.h:5:
#include <stdint.h>
         ^
/home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/stdint.h:52:16: note: in file included from /home/bastian/Downloads/swift-DEVELOPMENT-SNAPSHOT-2024-05-15-a-ubuntu22.04/usr/lib/swift/clang/include/stdint.h:52:
# include_next <stdint.h>
               ^
/usr/include/stdint.h:26:10: note: in file included from /usr/include/stdint.h:26:
#include <bits/libc-header-start.h>
         ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33:10: error: could not build module 'dlmalloc'
#include <features.h>
         ^
/home/bastian/Downloads/swift-for-wasm-examples-main/Sources/swift-audio/Effects/LadderFilter.swift:13:8: error: could not build C module 'VultDSP'
import VultDSP
       ^
[org.swift.sourcekit-lsp:request-77] default 2024-05-19 20:53:59.8890 +0000
Succeeded (took 41.36097431182861ms)

It looks like the C flags in Package.swift are not used when building.

I tried creating a compile_flags.txt with target and defines like in the Package.swift, but that doesn't seem to get respected.

[MaxDesiatov]

I'm not sure the report for this issue belongs to the examples repository, moving accordingly.

[ahoppen]

Synced to Apple’s issue tracker as rdar://129662080

[ahoppen]

#1535 adds support for configuration options of cross-compiled projects. Once there’s an open source toolchain with that change (ie. a main development snapshot after June 29), you should be able to use it by placing a .sourcekit-lsp/config.json file with the following contents in the root of your project.

{
  "swiftPM": {
    "triple": "wasm32-unknown-none-wasm"
  }
}

This file essentially communicates the arguments that you pass to a swift build invocation to SourceKit-LSP.

[turbolent]

@ahoppen Great work, thank you!