GCC_VERSION_AT_LEAST 146 Source/wtf/Assertions.cpp #if COMPILER(CLANG) || (COMPILER(GCC) && GCC_VERSION_AT_LEAST(4, 6, 0)) GCC_VERSION_AT_LEAST 179 Source/wtf/Assertions.cpp #if COMPILER(CLANG) || (COMPILER(GCC) && GCC_VERSION_AT_LEAST(4, 6, 0)) GCC_VERSION_AT_LEAST 168 Source/wtf/CPU.h #if CPU(ARM_NEON) && (!COMPILER(GCC) || GCC_VERSION_AT_LEAST(4, 7, 0)) GCC_VERSION_AT_LEAST 106 Source/wtf/Compiler.h #if GCC_VERSION_AT_LEAST(4, 3, 0) GCC_VERSION_AT_LEAST 111 Source/wtf/Compiler.h #if GCC_VERSION_AT_LEAST(4, 4, 0) GCC_VERSION_AT_LEAST 114 Source/wtf/Compiler.h #if GCC_VERSION_AT_LEAST(4, 5, 0) GCC_VERSION_AT_LEAST 117 Source/wtf/Compiler.h #if GCC_VERSION_AT_LEAST(4, 6, 0) GCC_VERSION_AT_LEAST 122 Source/wtf/Compiler.h #if GCC_VERSION_AT_LEAST(4, 7, 0)