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configure: fix detection of re-entrant resolver functions 

uClibc does not provide res_nsearch:
asterisk-16.0.0/main/dns.c:506: undefined reference to `res_nsearch'

Patch coded by Yann E. MORIN:
http://lists.busybox.net/pipermail/buildroot/2018-October/232630.html

ASTERISK-21795 #close

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Retrieved from:
https: //git.buildroot.net/buildroot/tree/package/asterisk/0005-configure-fix-detection-of-re-entrant-resolver-funct.patch]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Change-Id: I79296f19e28ec764bbd1e991bf11c416d0b10563
This commit is contained in:
Fabrice Fontaine 2023-03-08 19:26:51 +01:00 committed by Friendly Automation
parent 405211eff7
commit cb0220dec2
2 changed files with 10 additions and 2 deletions
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6
configure vendored
View File

@ -19348,7 +19348,11 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
int
main ()
{
int foo = res_ninit(NULL);
int foo;
foo = res_ninit(NULL);
foo = res_nsearch(NULL, NULL, 0, 0, NULL, 0);
;
return 0;
}

6
configure.ac
View File

@ -1487,7 +1487,11 @@ AC_LINK_IFELSE(
#include <arpa/nameser.h>
#endif
#include <resolv.h>],
[int foo = res_ninit(NULL);])],
[
int foo;
foo = res_ninit(NULL);
foo = res_nsearch(NULL, NULL, 0, 0, NULL, 0);
])],
AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_RES_NINIT], 1, [Define to 1 if your system has the re-entrant resolver functions.])
AC_SEARCH_LIBS(res_9_ndestroy, resolv)