diff --git a/ios/cmake/Toolchains/Toolchain-iPhoneOS_Xcode.cmake b/ios/cmake/Toolchains/Toolchain-iPhoneOS_Xcode.cmake
index a5c9f0fe3e..aa3a67cdbd 100644
--- a/ios/cmake/Toolchains/Toolchain-iPhoneOS_Xcode.cmake
+++ b/ios/cmake/Toolchains/Toolchain-iPhoneOS_Xcode.cmake
@@ -11,6 +11,13 @@ include (CMakeForceCompiler)
 CMAKE_FORCE_C_COMPILER (gcc gcc)
 CMAKE_FORCE_CXX_COMPILER (g++ g++)
 
+set (CMAKE_C_SIZEOF_DATA_PTR 4)
+set (CMAKE_C_HAS_ISYSROOT 1)
+set (CMAKE_C_COMPILER_ABI ELF)
+set (CMAKE_CXX_SIZEOF_DATA_PTR 4)
+set (CMAKE_CXX_HAS_ISYSROOT 1)
+set (CMAKE_CXX_COMPILER_ABI ELF)
+
 # Skip the platform compiler checks for cross compiling
 set (CMAKE_CXX_COMPILER_WORKS TRUE)
 set (CMAKE_C_COMPILER_WORKS TRUE)
diff --git a/ios/cmake/Toolchains/Toolchain-iPhoneSimulator_Xcode.cmake b/ios/cmake/Toolchains/Toolchain-iPhoneSimulator_Xcode.cmake
index 85bb17bdc5..78d45bca18 100644
--- a/ios/cmake/Toolchains/Toolchain-iPhoneSimulator_Xcode.cmake
+++ b/ios/cmake/Toolchains/Toolchain-iPhoneSimulator_Xcode.cmake
@@ -11,6 +11,13 @@ include (CMakeForceCompiler)
 CMAKE_FORCE_C_COMPILER (gcc gcc)
 CMAKE_FORCE_CXX_COMPILER (g++ g++)
 
+set (CMAKE_C_SIZEOF_DATA_PTR 4)
+set (CMAKE_C_HAS_ISYSROOT 1)
+set (CMAKE_C_COMPILER_ABI ELF)
+set (CMAKE_CXX_SIZEOF_DATA_PTR 4)
+set (CMAKE_CXX_HAS_ISYSROOT 1)
+set (CMAKE_CXX_COMPILER_ABI ELF)
+
 # Skip the platform compiler checks for cross compiling
 set (CMAKE_CXX_COMPILER_WORKS TRUE)
 set (CMAKE_C_COMPILER_WORKS TRUE)