| From d67d6b4f981db9612d808bd723176a1d2996d53a Mon Sep 17 00:00:00 2001 |
| From: Alexander Kanavin <alex@linutronix.de> |
| Date: Mon, 17 Jan 2022 13:21:32 +0100 |
| Subject: [PATCH] configure.ac: check getprotobynumber_r with AC_TRY_LINK |
| |
| AC_TRY_COMPILE won't error out if the function is altogether absent |
| (e.g. on linux musl C library), the test needs to link all the way. |
| |
| Upstream-Status: Submitted [via email to socat@dest-unreach.org] |
| Signed-off-by: Alexander Kanavin <alex@linutronix.de> |
| --- |
| configure.ac | 6 +++--- |
| 1 file changed, 3 insertions(+), 3 deletions(-) |
| |
| diff --git a/configure.ac b/configure.ac |
| index d4acc9e..973a7f2 100644 |
| --- a/configure.ac |
| +++ b/configure.ac |
| @@ -137,13 +137,13 @@ AC_MSG_RESULT($sc_cv_have_prototype_hstrerror) |
| # getprotobynumber_r() is not standardized |
| AC_MSG_CHECKING(for getprotobynumber_r() variant) |
| AC_CACHE_VAL(sc_cv_getprotobynumber_r, |
| -[AC_TRY_COMPILE([#include <stddef.h> |
| +[AC_TRY_LINK([#include <stddef.h> |
| #include <netdb.h>],[getprotobynumber_r(1,NULL,NULL,1024,NULL);], |
| [sc_cv_getprotobynumber_r=1; tmp_bynum_variant=Linux], |
| - [AC_TRY_COMPILE([#include <stddef.h> |
| + [AC_TRY_LINK([#include <stddef.h> |
| #include <netdb.h>],[getprotobynumber_r(1,NULL,NULL,1024);], |
| [sc_cv_getprotobynumber_r=2; tmp_bynum_variant=Solaris], |
| - [AC_TRY_COMPILE([#include <stddef.h> |
| + [AC_TRY_LINK([#include <stddef.h> |
| #include <netdb.h>],[getprotobynumber_r(1,NULL,NULL);], |
| [sc_cv_getprotobynumber_r=3; tmp_bynum_variant=AIX], |
| |