I'm encountering an issue related to the use of __attribute__ ((constructor(priority)) and __attribute__ ((init_priority(priority)) under Darwin, and I want to read more about it. The issue is the program fails to compile, which means GCC cannot consume a well defined program for which it defined the extensions. Cf., https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#Common-Function-Attributes and https://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html. I know the GCC manual has a section on Darwin specific options at https://gcc.gnu.org/onlinedocs/gcc-5.1.0/gcc/Darwin-Options.html#Darwin-Options. Where can I find reading on Darwin specific behavior when it diverges from "standard" GCC platform behavior?
