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Add required cflags for a WASI build #4

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Add required cflags for a WASI build #4

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9 changes: 7 additions & 2 deletions build.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,12 @@ pub fn build(b: *std.Build) void {
{
// TODO(mitchellh): support more complex features that are usually on
// with libgc like threading, parallelization, etc.
const cflags = [_][]const u8{};
const cflags_wasi = [_][]const u8{
"-D__wasi__",
"-D_WASI_EMULATED_SIGNAL",
"-Wl,wasi-emulated-signal",
};
const cflags = if (target.getOsTag() == .wasi) &cflags_wasi else &[_][]const u8{};
const libgc_srcs = [_][]const u8{
"alloc.c", "reclaim.c", "allchblk.c", "misc.c", "mach_dep.c", "os_dep.c",
"mark_rts.c", "headers.c", "mark.c", "obj_map.c", "blacklst.c", "finalize.c",
Expand All @@ -24,7 +29,7 @@ pub fn build(b: *std.Build) void {
gc.linkLibC();
gc.addIncludePath("vendor/bdwgc/include");
inline for (libgc_srcs) |src| {
gc.addCSourceFile("vendor/bdwgc/" ++ src, &cflags);
gc.addCSourceFile("vendor/bdwgc/" ++ src, cflags);
}

const gc_step = b.step("libgc", "build libgc");
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