diff --git a/lib/std/build/CheckObjectStep.zig b/lib/std/build/CheckObjectStep.zig
index 375e183231aaa3d36e6c79fabed1f358e016c705..c7e91bb7cbbf548423b19a9cfc30869768547bfc 100644
--- a/lib/std/build/CheckObjectStep.zig
+++ b/lib/std/build/CheckObjectStep.zig
@@ -408,6 +408,8 @@ const MachODumper = struct {
 
             .ID_DYLIB,
             .LOAD_DYLIB,
+            .LOAD_WEAK_DYLIB,
+            .REEXPORT_DYLIB,
             => {
                 const dylib = lc.dylib.inner.dylib;
                 try writer.writeByte('\n');
diff --git a/test/link.zig b/test/link.zig
index 6878881a6686c89d52bf47377723864c03265bcc..c578638ec3dd11f184dc1525a236695083aeef23 100644
--- a/test/link.zig
+++ b/test/link.zig
@@ -45,7 +45,11 @@ pub fn addCases(cases: *tests.StandaloneContext) void {
             .requires_macos_sdk = true,
         });
 
-        cases.addBuildFile("test/link/macho/needed_l/build.zig", .{
+        cases.addBuildFile("test/link/macho/needed_library/build.zig", .{
+            .build_modes = true,
+        });
+
+        cases.addBuildFile("test/link/macho/weak_library/build.zig", .{
             .build_modes = true,
         });
 
@@ -54,6 +58,11 @@ pub fn addCases(cases: *tests.StandaloneContext) void {
             .requires_macos_sdk = true,
         });
 
+        cases.addBuildFile("test/link/macho/weak_framework/build.zig", .{
+            .build_modes = true,
+            .requires_macos_sdk = true,
+        });
+
         // Try to build and run an Objective-C executable.
         cases.addBuildFile("test/link/macho/objc/build.zig", .{
             .build_modes = true,
diff --git a/test/link/macho/needed_l/a.c b/test/link/macho/needed_l/a.c
deleted file mode 100644
index 4bcf8c97861b2f21f77c7901c7514def56533185..0000000000000000000000000000000000000000
--- a/test/link/macho/needed_l/a.c
+++ /dev/null
@@ -1 +0,0 @@
-int a = 42;
diff --git a/test/link/macho/needed_l/build.zig b/test/link/macho/needed_l/build.zig
deleted file mode 100644
index 708a09dc32e20415cd76dde8311f37785142568c..0000000000000000000000000000000000000000
--- a/test/link/macho/needed_l/build.zig
+++ /dev/null
@@ -1,35 +0,0 @@
-const std = @import("std");
-const Builder = std.build.Builder;
-const LibExeObjectStep = std.build.LibExeObjStep;
-
-pub fn build(b: *Builder) void {
-    const mode = b.standardReleaseOptions();
-
-    const test_step = b.step("test", "Test the program");
-    test_step.dependOn(b.getInstallStep());
-
-    const dylib = b.addSharedLibrary("a", null, b.version(1, 0, 0));
-    dylib.setBuildMode(mode);
-    dylib.addCSourceFile("a.c", &.{});
-    dylib.linkLibC();
-    dylib.install();
-
-    // -dead_strip_dylibs
-    // -needed-la
-    const exe = b.addExecutable("test", null);
-    exe.addCSourceFile("main.c", &[0][]const u8{});
-    exe.setBuildMode(mode);
-    exe.linkLibC();
-    exe.linkSystemLibraryNeeded("a");
-    exe.addLibraryPath(b.pathFromRoot("zig-out/lib"));
-    exe.addRPath(b.pathFromRoot("zig-out/lib"));
-    exe.dead_strip_dylibs = true;
-
-    const check = exe.checkObject(.macho);
-    check.checkStart("cmd LOAD_DYLIB");
-    check.checkNext("name @rpath/liba.dylib");
-    test_step.dependOn(&check.step);
-
-    const run_cmd = exe.run();
-    test_step.dependOn(&run_cmd.step);
-}
diff --git a/test/link/macho/needed_l/main.c b/test/link/macho/needed_l/main.c
deleted file mode 100644
index ca68d24cc70460626b8cb3168417e66ddc4404ea..0000000000000000000000000000000000000000
--- a/test/link/macho/needed_l/main.c
+++ /dev/null
@@ -1,3 +0,0 @@
-int main(int argc, char* argv[]) {
-  return 0;
-}
diff --git a/test/link/macho/needed_library/a.c b/test/link/macho/needed_library/a.c
new file mode 100644
index 0000000000000000000000000000000000000000..4bcf8c97861b2f21f77c7901c7514def56533185
--- /dev/null
+++ b/test/link/macho/needed_library/a.c
@@ -0,0 +1 @@
+int a = 42;
diff --git a/test/link/macho/needed_library/build.zig b/test/link/macho/needed_library/build.zig
new file mode 100644
index 0000000000000000000000000000000000000000..708a09dc32e20415cd76dde8311f37785142568c
--- /dev/null
+++ b/test/link/macho/needed_library/build.zig
@@ -0,0 +1,35 @@
+const std = @import("std");
+const Builder = std.build.Builder;
+const LibExeObjectStep = std.build.LibExeObjStep;
+
+pub fn build(b: *Builder) void {
+    const mode = b.standardReleaseOptions();
+
+    const test_step = b.step("test", "Test the program");
+    test_step.dependOn(b.getInstallStep());
+
+    const dylib = b.addSharedLibrary("a", null, b.version(1, 0, 0));
+    dylib.setBuildMode(mode);
+    dylib.addCSourceFile("a.c", &.{});
+    dylib.linkLibC();
+    dylib.install();
+
+    // -dead_strip_dylibs
+    // -needed-la
+    const exe = b.addExecutable("test", null);
+    exe.addCSourceFile("main.c", &[0][]const u8{});
+    exe.setBuildMode(mode);
+    exe.linkLibC();
+    exe.linkSystemLibraryNeeded("a");
+    exe.addLibraryPath(b.pathFromRoot("zig-out/lib"));
+    exe.addRPath(b.pathFromRoot("zig-out/lib"));
+    exe.dead_strip_dylibs = true;
+
+    const check = exe.checkObject(.macho);
+    check.checkStart("cmd LOAD_DYLIB");
+    check.checkNext("name @rpath/liba.dylib");
+    test_step.dependOn(&check.step);
+
+    const run_cmd = exe.run();
+    test_step.dependOn(&run_cmd.step);
+}
diff --git a/test/link/macho/needed_library/main.c b/test/link/macho/needed_library/main.c
new file mode 100644
index 0000000000000000000000000000000000000000..ca68d24cc70460626b8cb3168417e66ddc4404ea
--- /dev/null
+++ b/test/link/macho/needed_library/main.c
@@ -0,0 +1,3 @@
+int main(int argc, char* argv[]) {
+  return 0;
+}
diff --git a/test/link/macho/weak_framework/build.zig b/test/link/macho/weak_framework/build.zig
new file mode 100644
index 0000000000000000000000000000000000000000..44675a15f8e7597fb43f2790abfaea5dc92fa2da
--- /dev/null
+++ b/test/link/macho/weak_framework/build.zig
@@ -0,0 +1,24 @@
+const std = @import("std");
+const Builder = std.build.Builder;
+const LibExeObjectStep = std.build.LibExeObjStep;
+
+pub fn build(b: *Builder) void {
+    const mode = b.standardReleaseOptions();
+
+    const test_step = b.step("test", "Test the program");
+    test_step.dependOn(b.getInstallStep());
+
+    const exe = b.addExecutable("test", null);
+    exe.addCSourceFile("main.c", &[0][]const u8{});
+    exe.setBuildMode(mode);
+    exe.linkLibC();
+    exe.linkFrameworkWeak("Cocoa");
+
+    const check = exe.checkObject(.macho);
+    check.checkStart("cmd LOAD_WEAK_DYLIB");
+    check.checkNext("name {*}Cocoa");
+    test_step.dependOn(&check.step);
+
+    const run_cmd = exe.run();
+    test_step.dependOn(&run_cmd.step);
+}
diff --git a/test/link/macho/weak_framework/main.c b/test/link/macho/weak_framework/main.c
new file mode 100644
index 0000000000000000000000000000000000000000..ca68d24cc70460626b8cb3168417e66ddc4404ea
--- /dev/null
+++ b/test/link/macho/weak_framework/main.c
@@ -0,0 +1,3 @@
+int main(int argc, char* argv[]) {
+  return 0;
+}
diff --git a/test/link/macho/weak_library/a.c b/test/link/macho/weak_library/a.c
new file mode 100644
index 0000000000000000000000000000000000000000..9f49802ce6177e3cb5714de2b4ae8da459e1ceb2
--- /dev/null
+++ b/test/link/macho/weak_library/a.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int a = 42;
+
+const char* asStr() {
+  static char str[3];
+  sprintf(str, "%d", 42);
+  return str;
+}
diff --git a/test/link/macho/weak_library/build.zig b/test/link/macho/weak_library/build.zig
new file mode 100644
index 0000000000000000000000000000000000000000..5a1f7b4ce5d8afe2ffaace4432ab6e913eacf951
--- /dev/null
+++ b/test/link/macho/weak_library/build.zig
@@ -0,0 +1,33 @@
+const std = @import("std");
+const Builder = std.build.Builder;
+const LibExeObjectStep = std.build.LibExeObjStep;
+
+pub fn build(b: *Builder) void {
+    const mode = b.standardReleaseOptions();
+
+    const test_step = b.step("test", "Test the program");
+    test_step.dependOn(b.getInstallStep());
+
+    const dylib = b.addSharedLibrary("a", null, b.version(1, 0, 0));
+    dylib.setBuildMode(mode);
+    dylib.addCSourceFile("a.c", &.{});
+    dylib.linkLibC();
+    dylib.install();
+
+    const exe = b.addExecutable("test", null);
+    exe.addCSourceFile("main.c", &[0][]const u8{});
+    exe.setBuildMode(mode);
+    exe.linkLibC();
+    exe.linkSystemLibraryWeak("a");
+    exe.addLibraryPath(b.pathFromRoot("zig-out/lib"));
+    exe.addRPath(b.pathFromRoot("zig-out/lib"));
+
+    const check = exe.checkObject(.macho);
+    check.checkStart("cmd LOAD_WEAK_DYLIB");
+    check.checkNext("name @rpath/liba.dylib");
+    test_step.dependOn(&check.step);
+
+    const run_cmd = exe.run();
+    run_cmd.expectStdOutEqual("42 42");
+    test_step.dependOn(&run_cmd.step);
+}
diff --git a/test/link/macho/weak_library/main.c b/test/link/macho/weak_library/main.c
new file mode 100644
index 0000000000000000000000000000000000000000..ee5367fef740e70d8161a41bc0ff69a1c17a2f78
--- /dev/null
+++ b/test/link/macho/weak_library/main.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+extern int a;
+extern const char* asStr();
+
+int main(int argc, char* argv[]) {
+  printf("%d %s", a, asStr());
+  return 0;
+}