diff --git a/aos/libc/BUILD b/aos/libc/BUILD
index 35b6629..cc54670 100644
--- a/aos/libc/BUILD
+++ b/aos/libc/BUILD
@@ -8,6 +8,7 @@
     hdrs = [
         "aos_strsignal.h",
     ],
+    target_compatible_with = ["@platforms//os:linux"],
     deps = [
         "//aos:thread_local",
         "@com_github_google_glog//:glog",
@@ -19,6 +20,7 @@
     srcs = [
         "aos_strsignal_test.cc",
     ],
+    target_compatible_with = ["@platforms//os:linux"],
     deps = [
         ":aos_strsignal",
         "//aos/testing:googletest",
@@ -33,6 +35,7 @@
     hdrs = [
         "dirname.h",
     ],
+    target_compatible_with = ["@platforms//os:linux"],
 )
 
 cc_test(
@@ -40,6 +43,7 @@
     srcs = [
         "dirname_test.cc",
     ],
+    target_compatible_with = ["@platforms//os:linux"],
     deps = [
         ":dirname",
         "//aos/testing:googletest",
@@ -54,6 +58,7 @@
     hdrs = [
         "aos_strerror.h",
     ],
+    target_compatible_with = ["@platforms//os:linux"],
     deps = [
         "//aos:thread_local",
     ],
@@ -64,6 +69,7 @@
     srcs = [
         "aos_strerror_test.cc",
     ],
+    target_compatible_with = ["@platforms//os:linux"],
     deps = [
         ":aos_strerror",
         "//aos/testing:googletest",