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Re: Definition of AC_CHECK_FUNCS
From: |
Mathieu Lirzin |
Subject: |
Re: Definition of AC_CHECK_FUNCS |
Date: |
Thu, 07 Apr 2016 09:16:45 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Hello,
Nikita Karetnikov <address@hidden> writes:
> How can I dump the actual code that AC_CHECK_FUNCS expands to?
> https://www.gnu.org/software/autoconf/manual/autoconf-2.67/html_node/Generic-Functions.html
> In other words, what exactly is used to determine whether a function is
> available or not?
Since the result is stored in the 'ac_cv_func_FUNCTION' variable, you
can search for it in the generated configure script. You will find
something like:
--8<---------------cut here---------------start------------->8---
ac_fn_c_check_func "$LINENO" "foo" "ac_cv_func_foo"
if test "x$ac_cv_func_foo" = xyes; then :
--8<---------------cut here---------------end--------------->8---
then, you can you check the shell function 'ac_fn_c_check_func ()' to see
the code snippet used.
Does it answer your question?
--
Mathieu Lirzin