build: define _DARWIN_C_SOURCE

CMakeLists.txt

@@ -81,7 +81,7 @@ set_target_properties(tree-sitter
                       SOVERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}"
                       DEFINE_SYMBOL "")
 
-target_compile_definitions(tree-sitter PRIVATE _POSIX_C_SOURCE=200112L _DEFAULT_SOURCE)
+target_compile_definitions(tree-sitter PRIVATE _POSIX_C_SOURCE=200112L _DEFAULT_SOURCE _DARWIN_C_SOURCE)
 
 include(GNUInstallDirs)
 

Makefile

@@ -24,7 +24,7 @@ OBJ := $(SRC:.c=.o)
 ARFLAGS := rcs
 CFLAGS ?= -O3 -Wall -Wextra -Wshadow -Wpedantic -Werror=incompatible-pointer-types
 override CFLAGS += -std=c11 -fPIC -fvisibility=hidden
-override CFLAGS += -D_POSIX_C_SOURCE=200112L -D_DEFAULT_SOURCE
+override CFLAGS += -D_POSIX_C_SOURCE=200112L -D_DEFAULT_SOURCE -D_DARWIN_C_SOURCE
 override CFLAGS += -Ilib/src -Ilib/src/wasm -Ilib/include
 
 # ABI versioning

Package.swift

@@ -27,6 +27,7 @@ let package = Package(
                         .headerSearchPath("src"),
                         .define("_POSIX_C_SOURCE", to: "200112L"),
                         .define("_DEFAULT_SOURCE"),
+                        .define("_DARWIN_C_SOURCE"),
                 ]),
     ],
     cLanguageStandard: .c11

build.zig

@@ -40,6 +40,7 @@ pub fn build(b: *std.Build) !void {
 
     lib.root_module.addCMacro("_POSIX_C_SOURCE", "200112L");
     lib.root_module.addCMacro("_DEFAULT_SOURCE", "");
+    lib.root_module.addCMacro("_DARWIN_C_SOURCE", "");
 
     if (wasm) {
         if (b.lazyDependency(wasmtimeDep(target.result), .{})) |wasmtime| {

crates/xtask/src/build_wasm.rs

@@ -195,6 +195,7 @@ pub fn run_wasm(args: &BuildWasm) -> Result<()> {
         "-D", "NDEBUG=",
         "-D", "_POSIX_C_SOURCE=200112L",
         "-D", "_DEFAULT_SOURCE=",
+        "-D", "_DARWIN_C_SOURCE=",
         "-I", "lib/src",
         "-I", "lib/include",
         "--js-library", "lib/binding_web/lib/imports.js",

lib/binding_rust/build.rs

@@ -49,6 +49,7 @@ fn main() {
         .include(&include_path)
         .define("_POSIX_C_SOURCE", "200112L")
         .define("_DEFAULT_SOURCE", None)
+        .define("_DARWIN_C_SOURCE", None)
         .warnings(false)
         .file(src_path.join("lib.c"))
         .compile("tree-sitter");