std.zig.target: Add NetBSD libc support.

Author: alexrp

lib/std/zig/target.zig

@@ -18,10 +18,14 @@ pub const available_libcs = [_]ArchOsAbi{
     .{ .arch = .arm, .os = .linux, .abi = .gnueabihf, .os_ver = .{ .major = 2, .minor = 1, .patch = 0 } },
     .{ .arch = .arm, .os = .linux, .abi = .musleabi, .os_ver = .{ .major = 2, .minor = 1, .patch = 0 } },
     .{ .arch = .arm, .os = .linux, .abi = .musleabihf, .os_ver = .{ .major = 2, .minor = 1, .patch = 0 } },
+    .{ .arch = .arm, .os = .netbsd, .abi = .eabi, .os_ver = .{ .major = 1, .minor = 2, .patch = 0 } },
+    .{ .arch = .arm, .os = .netbsd, .abi = .eabihf, .os_ver = .{ .major = 1, .minor = 2, .patch = 0 } },
     .{ .arch = .armeb, .os = .linux, .abi = .gnueabi, .os_ver = .{ .major = 2, .minor = 6, .patch = 0 } },
     .{ .arch = .armeb, .os = .linux, .abi = .gnueabihf, .os_ver = .{ .major = 2, .minor = 6, .patch = 0 } },
     .{ .arch = .armeb, .os = .linux, .abi = .musleabi, .os_ver = .{ .major = 2, .minor = 6, .patch = 0 } },
     .{ .arch = .armeb, .os = .linux, .abi = .musleabihf, .os_ver = .{ .major = 2, .minor = 6, .patch = 0 } },
+    .{ .arch = .armeb, .os = .netbsd, .abi = .eabi, .os_ver = .{ .major = 1, .minor = 2, .patch = 0 } },
+    .{ .arch = .armeb, .os = .netbsd, .abi = .eabihf, .os_ver = .{ .major = 1, .minor = 2, .patch = 0 } },
     .{ .arch = .thumb, .os = .freebsd, .abi = .eabihf, .os_ver = .{ .major = 11, .minor = 0, .patch = 0 } },
     .{ .arch = .thumb, .os = .linux, .abi = .musleabi, .os_ver = .{ .major = 2, .minor = 1, .patch = 0 } },
     .{ .arch = .thumb, .os = .linux, .abi = .musleabihf, .os_ver = .{ .major = 2, .minor = 1, .patch = 0 } },
@@ -32,9 +36,11 @@ pub const available_libcs = [_]ArchOsAbi{
     .{ .arch = .aarch64, .os = .linux, .abi = .gnu, .os_ver = .{ .major = 3, .minor = 7, .patch = 0 }, .glibc_min = .{ .major = 2, .minor = 17, .patch = 0 } },
     .{ .arch = .aarch64, .os = .linux, .abi = .musl, .os_ver = .{ .major = 3, .minor = 7, .patch = 0 } },
     .{ .arch = .aarch64, .os = .macos, .abi = .none, .os_ver = .{ .major = 11, .minor = 0, .patch = 0 } },
+    .{ .arch = .aarch64, .os = .netbsd, .abi = .none, .os_ver = .{ .major = 9, .minor = 0, .patch = 0 } },
     .{ .arch = .aarch64, .os = .windows, .abi = .gnu },
     .{ .arch = .aarch64_be, .os = .linux, .abi = .gnu, .os_ver = .{ .major = 3, .minor = 13, .patch = 0 }, .glibc_min = .{ .major = 2, .minor = 17, .patch = 0 } },
     .{ .arch = .aarch64_be, .os = .linux, .abi = .musl, .os_ver = .{ .major = 3, .minor = 13, .patch = 0 } },
+    .{ .arch = .aarch64_be, .os = .netbsd, .abi = .none, .os_ver = .{ .major = 9, .minor = 0, .patch = 0 } },
     .{ .arch = .csky, .os = .linux, .abi = .gnueabi, .os_ver = .{ .major = 4, .minor = 20, .patch = 0 }, .glibc_min = .{ .major = 2, .minor = 29, .patch = 0 }, .glibc_triple = "csky-linux-gnuabiv2-soft" },
     .{ .arch = .csky, .os = .linux, .abi = .gnueabihf, .os_ver = .{ .major = 4, .minor = 20, .patch = 0 }, .glibc_min = .{ .major = 2, .minor = 29, .patch = 0 }, .glibc_triple = "csky-linux-gnuabiv2" },
     .{ .arch = .hexagon, .os = .linux, .abi = .musl, .os_ver = .{ .major = 3, .minor = 2, .patch = 102 } },
@@ -44,14 +50,19 @@ pub const available_libcs = [_]ArchOsAbi{
     .{ .arch = .loongarch64, .os = .linux, .abi = .muslsf, .os_ver = .{ .major = 5, .minor = 19, .patch = 0 } },
     .{ .arch = .m68k, .os = .linux, .abi = .gnu, .os_ver = .{ .major = 1, .minor = 3, .patch = 94 } },
     .{ .arch = .m68k, .os = .linux, .abi = .musl, .os_ver = .{ .major = 1, .minor = 3, .patch = 94 } },
+    .{ .arch = .m68k, .os = .netbsd, .abi = .none },
     .{ .arch = .mips, .os = .linux, .abi = .gnueabi, .os_ver = .{ .major = 1, .minor = 1, .patch = 82 }, .glibc_triple = "mips-linux-gnu-soft" },
     .{ .arch = .mips, .os = .linux, .abi = .gnueabihf, .os_ver = .{ .major = 1, .minor = 1, .patch = 82 }, .glibc_triple = "mips-linux-gnu" },
     .{ .arch = .mips, .os = .linux, .abi = .musleabi, .os_ver = .{ .major = 1, .minor = 1, .patch = 82 } },
     .{ .arch = .mips, .os = .linux, .abi = .musleabihf, .os_ver = .{ .major = 1, .minor = 1, .patch = 82 } },
+    .{ .arch = .mips, .os = .netbsd, .abi = .eabi, .os_ver = .{ .major = 1, .minor = 1, .patch = 0 } },
+    .{ .arch = .mips, .os = .netbsd, .abi = .eabihf, .os_ver = .{ .major = 1, .minor = 1, .patch = 0 } },
     .{ .arch = .mipsel, .os = .linux, .abi = .gnueabi, .os_ver = .{ .major = 1, .minor = 1, .patch = 82 }, .glibc_triple = "mipsel-linux-gnu-soft" },
     .{ .arch = .mipsel, .os = .linux, .abi = .gnueabihf, .os_ver = .{ .major = 1, .minor = 1, .patch = 82 }, .glibc_triple = "mipsel-linux-gnu" },
     .{ .arch = .mipsel, .os = .linux, .abi = .musleabi, .os_ver = .{ .major = 1, .minor = 1, .patch = 82 } },
     .{ .arch = .mipsel, .os = .linux, .abi = .musleabihf, .os_ver = .{ .major = 1, .minor = 1, .patch = 82 } },
+    .{ .arch = .mipsel, .os = .netbsd, .abi = .eabi, .os_ver = .{ .major = 1, .minor = 1, .patch = 0 } },
+    .{ .arch = .mipsel, .os = .netbsd, .abi = .eabihf, .os_ver = .{ .major = 1, .minor = 1, .patch = 0 } },
     .{ .arch = .mips64, .os = .linux, .abi = .gnuabi64, .os_ver = .{ .major = 2, .minor = 3, .patch = 48 }, .glibc_triple = "mips64-linux-gnu-n64" },
     .{ .arch = .mips64, .os = .linux, .abi = .gnuabin32, .os_ver = .{ .major = 2, .minor = 6, .patch = 0 }, .glibc_triple = "mips64-linux-gnu-n32" },
     .{ .arch = .mips64, .os = .linux, .abi = .muslabi64, .os_ver = .{ .major = 2, .minor = 3, .patch = 48 } },
@@ -65,6 +76,8 @@ pub const available_libcs = [_]ArchOsAbi{
     .{ .arch = .powerpc, .os = .linux, .abi = .gnueabihf, .os_ver = .{ .major = 1, .minor = 3, .patch = 45 }, .glibc_triple = "powerpc-linux-gnu" },
     .{ .arch = .powerpc, .os = .linux, .abi = .musleabi, .os_ver = .{ .major = 1, .minor = 3, .patch = 45 } },
     .{ .arch = .powerpc, .os = .linux, .abi = .musleabihf, .os_ver = .{ .major = 1, .minor = 3, .patch = 45 } },
+    .{ .arch = .powerpc, .os = .netbsd, .abi = .eabi, .os_ver = .{ .major = 6, .minor = 0, .patch = 0 } },
+    .{ .arch = .powerpc, .os = .netbsd, .abi = .eabihf, .os_ver = .{ .major = 1, .minor = 4, .patch = 0 } },
     .{ .arch = .powerpc64, .os = .freebsd, .abi = .none, .os_ver = .{ .major = 8, .minor = 0, .patch = 0 } },
     .{ .arch = .powerpc64, .os = .linux, .abi = .gnu, .os_ver = .{ .major = 2, .minor = 6, .patch = 0 } },
     .{ .arch = .powerpc64, .os = .linux, .abi = .musl, .os_ver = .{ .major = 2, .minor = 6, .patch = 0 } },
@@ -79,24 +92,31 @@ pub const available_libcs = [_]ArchOsAbi{
     .{ .arch = .s390x, .os = .linux, .abi = .gnu, .os_ver = .{ .major = 2, .minor = 4, .patch = 2 } },
     .{ .arch = .s390x, .os = .linux, .abi = .musl, .os_ver = .{ .major = 2, .minor = 4, .patch = 2 } },
     .{ .arch = .sparc, .os = .linux, .abi = .gnu, .os_ver = .{ .major = 2, .minor = 1, .patch = 19 }, .glibc_triple = "sparcv9-linux-gnu" },
+    .{ .arch = .sparc, .os = .netbsd, .abi = .none },
     .{ .arch = .sparc64, .os = .linux, .abi = .gnu, .os_ver = .{ .major = 2, .minor = 1, .patch = 19 } },
+    .{ .arch = .sparc64, .os = .netbsd, .abi = .none, .os_ver = .{ .major = 1, .minor = 4, .patch = 0 } },
     .{ .arch = .wasm32, .os = .wasi, .abi = .musl },
     .{ .arch = .x86, .os = .freebsd, .abi = .none },
     .{ .arch = .x86, .os = .linux, .abi = .gnu, .glibc_triple = "i686-linux-gnu" },
     .{ .arch = .x86, .os = .linux, .abi = .musl },
+    .{ .arch = .x86, .os = .netbsd, .abi = .none },
     .{ .arch = .x86, .os = .windows, .abi = .gnu },
     .{ .arch = .x86_64, .os = .freebsd, .abi = .none, .os_ver = .{ .major = 5, .minor = 1, .patch = 0 } },
     .{ .arch = .x86_64, .os = .linux, .abi = .gnu, .os_ver = .{ .major = 2, .minor = 6, .patch = 4 } },
     .{ .arch = .x86_64, .os = .linux, .abi = .gnux32, .os_ver = .{ .major = 3, .minor = 4, .patch = 0 }, .glibc_triple = "x86_64-linux-gnu-x32" },
     .{ .arch = .x86_64, .os = .linux, .abi = .musl, .os_ver = .{ .major = 2, .minor = 6, .patch = 4 } },
     .{ .arch = .x86_64, .os = .linux, .abi = .muslx32, .os_ver = .{ .major = 3, .minor = 4, .patch = 0 } },
     .{ .arch = .x86_64, .os = .macos, .abi = .none, .os_ver = .{ .major = 10, .minor = 7, .patch = 0 } },
+    .{ .arch = .x86_64, .os = .netbsd, .abi = .none, .os_ver = .{ .major = 2, .minor = 0, .patch = 0 } },
     .{ .arch = .x86_64, .os = .windows, .abi = .gnu },
 };
 
 /// The version of Zig's bundled FreeBSD libc used when linking libc statically.
 pub const freebsd_libc_version: std.SemanticVersion = .{ .major = 14, .minor = 0, .patch = 0 };
 
+/// The version of Zig's bundled NetBSD libc used when linking libc statically.
+pub const netbsd_libc_version: std.SemanticVersion = .{ .major = 10, .minor = 1, .patch = 0 };
+
 pub fn canBuildLibC(target: std.Target) bool {
     for (available_libcs) |libc| {
         if (target.cpu.arch == libc.arch and target.os.tag == libc.os and target.abi == libc.abi) {
@@ -378,6 +398,19 @@ pub fn isLibCLibName(target: std.Target, name: []const u8) bool {
             return true;
     }
 
+    if (target.isNetBSDLibC()) {
+        if (eqlIgnoreCase(ignore_case, name, "execinfo"))
+            return true;
+        if (eqlIgnoreCase(ignore_case, name, "m"))
+            return true;
+        if (eqlIgnoreCase(ignore_case, name, "pthread"))
+            return true;
+        if (eqlIgnoreCase(ignore_case, name, "rt"))
+            return true;
+        if (eqlIgnoreCase(ignore_case, name, "util"))
+            return true;
+    }
+
     if (target.os.tag == .haiku) {
         if (eqlIgnoreCase(ignore_case, name, "root"))
             return true;