--- /dev/null
+#include "OSX/config/base.xcconfig"
+
+GCC_PRECOMPILE_PREFIX_HEADER = YES
+
+ALWAYS_SEARCH_USER_PATHS = NO
+
+HEADER_SEARCH_PATHS = $(inherited) $(PROJECT_DIR)/include $(PROJECT_DIR)/sec/ProjectHeaders $(PROJECT_DIR)/utilities
+LIBRARY_SEARCH_PATHS = $(inherited) /usr/lib/system
+
+STRIP_INSTALLED_PRODUCT = YES
+DEPLOYMENT_POSTPROCESSING = NO
+
+GCC_C_LANGUAGE_STANDARD = gnu99
+SUPPORTED_PLATFORMS = macOS
+
+// Don't use the inherited cflags; they set SEC_IOS_ON_OSX
+GCC_PREPROCESSOR_DEFINITIONS = OSSPINLOCK_USE_INLINED=0
+
+GCC_TREAT_WARNINGS_AS_ERRORS = YES
+GCC_WARN_ABOUT_DEPRECATED_FUNCTIONS = NO
+GCC_SYMBOLS_PRIVATE_EXTERN = NO
+GCC_WARN_64_TO_32_BIT_CONVERSION = YES
+GCC_WARN_ABOUT_MISSING_PROTOTYPES = YES
+GCC_WARN_ABOUT_RETURN_TYPE = YES
+GCC_WARN_UNUSED_VARIABLE = YES
+
+// Warnings for old code
+GCC_WARN_FOUR_CHARACTER_CONSTANTS = NO
+
+// If we run into trouble, uncomment:
+// WARNING_CFLAGS = -Wno-deprecated-declarations