diff --git a/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake b/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
index 62e16d52cb3ea..a722fe709af5f 100644
--- a/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
+++ b/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
@@ -88,7 +88,11 @@ function(_get_common_compile_options output_var flags)
          (LIBC_CC_SUPPORTS_NOSTDLIBINC OR COMPILER_RESOURCE_DIR))
         # We use -idirafter to avoid preempting libc's own headers in case the
         # directory (e.g. /usr/include) contains other headers.
-        list(APPEND compile_options "-idirafter${LIBC_KERNEL_HEADERS}")
+        if(CMAKE_CROSSCOMPILING)
+          list(APPEND compile_options "-idirafter=${LIBC_KERNEL_HEADERS}")
+        else()
+          list(APPEND compile_options "-idirafter${LIBC_KERNEL_HEADERS}")
+        endif()
       endif()
     endif()
 
diff --git a/libc/src/time/linux/nanosleep.cpp b/libc/src/time/linux/nanosleep.cpp
index b267c3238b01f..7a856376ffb20 100644
--- a/libc/src/time/linux/nanosleep.cpp
+++ b/libc/src/time/linux/nanosleep.cpp
@@ -7,7 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "src/time/nanosleep.h"
-
+#include "hdr/time_macros.h"
 #include "src/__support/OSUtil/syscall.h" // For syscall functions.
 #include "src/__support/common.h"
 #include "src/__support/macros/config.h"