diff --git a/mkspecs/features/toolchain.prf b/mkspecs/features/toolchain.prf
index 0040b6c..bfad10d 100644
--- a/mkspecs/features/toolchain.prf
+++ b/mkspecs/features/toolchain.prf
@@ -288,9 +288,12 @@
                 }
             }
         }
-        isEmpty(QMAKE_DEFAULT_LIBDIRS)|isEmpty(QMAKE_DEFAULT_INCDIRS): \
+        isEmpty(QMAKE_DEFAULT_INCDIRS): \
             !integrity: \
-                error("failed to parse default search paths from compiler output")
+                error("failed to parse default include paths from compiler output")
+        isEmpty(QMAKE_DEFAULT_LIBDIRS): \
+            !integrity:!darwin: \
+                error("failed to parse default library paths from compiler output")
         QMAKE_DEFAULT_LIBDIRS = $$unique(QMAKE_DEFAULT_LIBDIRS)
     } else: ghs {
         cmd = $$QMAKE_CXX $$QMAKE_CXXFLAGS -$${LITERAL_HASH} -o /tmp/fake_output /tmp/fake_input.cpp
@@ -411,7 +414,7 @@
         QMAKE_DEFAULT_INCDIRS = $$split(INCLUDE, $$QMAKE_DIRLIST_SEP)
     }
 
-    unix:if(!cross_compile|host_build) {
+    unix:!darwin:if(!cross_compile|host_build) {
         isEmpty(QMAKE_DEFAULT_INCDIRS): QMAKE_DEFAULT_INCDIRS = /usr/include /usr/local/include
         isEmpty(QMAKE_DEFAULT_LIBDIRS): QMAKE_DEFAULT_LIBDIRS = /lib /usr/lib
     }