diff --git a/mkspecs/common/uikit/clang.conf b/mkspecs/common/uikit/clang.conf
index 0c22282c79..6b9b7eea8e 100644
--- a/mkspecs/common/uikit/clang.conf
+++ b/mkspecs/common/uikit/clang.conf
@@ -2,28 +2,6 @@
 # compiler settings for iOS/tvOS/watchOS clang compilers
 #
 
-# build flags
-QMAKE_IOS_CFLAGS       += -fvisibility=hidden -fpascal-strings -fmessage-length=0
-QMAKE_IOS_CFLAGS       += -Wno-trigraphs -Wreturn-type -Wparentheses -Wswitch -Wno-unused-parameter -Wunused-variable -Wunused-value -Wno-shorten-64-to-32 -Wno-sign-conversion
-QMAKE_IOS_CXXFLAGS     += -fvisibility-inlines-hidden
-
 # Based on the following information, http://clang.llvm.org/doxygen/ObjCRuntime_8h_source.html,
 # we can conclude that it's safe to always pass the following flags
-QMAKE_IOS_OBJ_CFLAGS   += -fobjc-nonfragile-abi -fobjc-legacy-dispatch
-
-# But these only apply to non-ARM targets
-!contains(QT_ARCH, arm): QMAKE_IOS_CFLAGS += -fexceptions -fasm-blocks
-
-# Clang 3.1 (and above) flags
-QMAKE_IOS_CFLAGS       += -Wno-missing-field-initializers -Wno-missing-prototypes -Wno-implicit-atomic-properties -Wformat -Wno-missing-braces -Wno-unused-function -Wno-unused-label -Wuninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-sign-compare -Wpointer-sign -Wno-newline-eof -Wdeprecated-declarations -Winvalid-offsetof -Wno-conversion
-QMAKE_IOS_CXXFLAGS     += -Wno-non-virtual-dtor -Wno-overloaded-virtual -Wno-exit-time-destructors
-QMAKE_IOS_OBJ_CFLAGS   += -Wno-deprecated-implementations -Wprotocol -Wno-selector -Wno-strict-selector-match -Wno-undeclared-selector
-
-# Set build flags
-QMAKE_CFLAGS           += $$QMAKE_IOS_CFLAGS
-QMAKE_CXXFLAGS         += $$QMAKE_IOS_CFLAGS $$QMAKE_IOS_CXXFLAGS
-QMAKE_OBJECTIVE_CFLAGS += $$QMAKE_IOS_OBJ_CFLAGS
-
-QMAKE_IOS_CFLAGS        =
-QMAKE_IOS_CXXFLAGS      =
-QMAKE_IOS_OBJ_CFLAGS    =
+QMAKE_OBJECTIVE_CFLAGS += -fobjc-nonfragile-abi -fobjc-legacy-dispatch