| Andrew Geissler | 595f630 | 2022-01-24 19:11:47 +0000 | [diff] [blame] | 1 | From d67d6b4f981db9612d808bd723176a1d2996d53a Mon Sep 17 00:00:00 2001 |
| 2 | From: Alexander Kanavin <alex@linutronix.de> |
| 3 | Date: Mon, 17 Jan 2022 13:21:32 +0100 |
| 4 | Subject: [PATCH] configure.ac: check getprotobynumber_r with AC_TRY_LINK |
| 5 | |
| 6 | AC_TRY_COMPILE won't error out if the function is altogether absent |
| 7 | (e.g. on linux musl C library), the test needs to link all the way. |
| 8 | |
| 9 | Upstream-Status: Submitted [via email to socat@dest-unreach.org] |
| 10 | Signed-off-by: Alexander Kanavin <alex@linutronix.de> |
| 11 | --- |
| 12 | configure.ac | 6 +++--- |
| 13 | 1 file changed, 3 insertions(+), 3 deletions(-) |
| 14 | |
| 15 | diff --git a/configure.ac b/configure.ac |
| 16 | index d4acc9e..973a7f2 100644 |
| 17 | --- a/configure.ac |
| 18 | +++ b/configure.ac |
| 19 | @@ -137,13 +137,13 @@ AC_MSG_RESULT($sc_cv_have_prototype_hstrerror) |
| 20 | # getprotobynumber_r() is not standardized |
| 21 | AC_MSG_CHECKING(for getprotobynumber_r() variant) |
| 22 | AC_CACHE_VAL(sc_cv_getprotobynumber_r, |
| 23 | -[AC_TRY_COMPILE([#include <stddef.h> |
| 24 | +[AC_TRY_LINK([#include <stddef.h> |
| 25 | #include <netdb.h>],[getprotobynumber_r(1,NULL,NULL,1024,NULL);], |
| 26 | [sc_cv_getprotobynumber_r=1; tmp_bynum_variant=Linux], |
| 27 | - [AC_TRY_COMPILE([#include <stddef.h> |
| 28 | + [AC_TRY_LINK([#include <stddef.h> |
| 29 | #include <netdb.h>],[getprotobynumber_r(1,NULL,NULL,1024);], |
| 30 | [sc_cv_getprotobynumber_r=2; tmp_bynum_variant=Solaris], |
| 31 | - [AC_TRY_COMPILE([#include <stddef.h> |
| 32 | + [AC_TRY_LINK([#include <stddef.h> |
| 33 | #include <netdb.h>],[getprotobynumber_r(1,NULL,NULL);], |
| 34 | [sc_cv_getprotobynumber_r=3; tmp_bynum_variant=AIX], |
| 35 | |