diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h
--- a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h
@@ -1450,6 +1450,12 @@
 
 #define SIGACTION_SYMNAME sigaction
 
+#elif SANITIZER_FUCHSIA
+
+namespace __sanitizer {
+struct __sanitizer_struct_mallinfo {};
+}  // namespace __sanitizer
+
 #endif  // SANITIZER_LINUX || SANITIZER_MAC
 
 #endif