// Include I/O support for 'long long' and 'unsigned long long'.
#undef _GLIBCXX_USE_LONG_LONG
+// Define if C99 features such as lldiv_t, llabs, lldiv should be exposed.
+#undef _GLIBCXX_USE_C99
+
// Define if C99 math functions (like fpclassify) should be exposed.
#undef _GLIBCXX_USE_C99_MATH
-// Define if C99 features such as lldiv_t, llabs, lldiv should be exposed.
-#undef _GLIBCXX_USE_C99
+// Define if C99 complex math functions should be used in std::complex.
+#undef _GLIBCXX_USE_C99_COMPLEX_MATH
// Define if code specialized for wchar_t should be used.
#undef _GLIBCXX_USE_WCHAR_T