The following macros check for the presence of certain members in C
structures. If there is no macro specifically defined to check for a
member you need, then you can use the general structure-member macros
(see Generic Structures) or, for more complex tests, you may use
AC_COMPILE_IFELSE (see Running the Compiler).
|• Particular Structures||Macros to check for certain structure members|
|• Generic Structures||How to find other structure members|