AX_CHECK_TYPEDEF(TYPEDEF, HEADER [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]])
Check if the given typedef-name is recognized as a type. The trick is to use a sizeof(TYPEDEF) and see if the compiler is happy with that.
This can be thought of as a mixture of AC_CHECK_TYPE(TYPEDEF,DEFAULT) and AC_CHECK_LIB(LIBRARY,FUNCTION,ACTION-IF-FOUND,ACTION-IF-NOT-FOUND).
A convenience macro AX_CHECK_TYPEDEF_ is provided that will not emit any message to the user - it just executes one of the actions.
Download the latest version of ax_check_typedef.m4 or browse the macro’s revision history.
Copyright © 2008 Guido U. Draheim guidod@gmx.de
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