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lib: drop support for < c-ares 1.16.0

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Closes #20911
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Daniel Stenberg 2026-03-21 14:15:53 +01:00
parent 21fc17b265
commit 789282cb8d
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GPG key ID: 5CC908FDB71E12C2
6 changed files with 30 additions and 270 deletions
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25
m4/curl-confopts.m4
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@ -442,28 +442,11 @@ AC_DEFUN([CURL_CHECK_LIB_ARES], [
LIBS="$ares_LIBS $clean_LIBS"
#
dnl check if c-ares new enough
AC_MSG_CHECKING([that c-ares is good and recent enough])
AC_LINK_IFELSE([
AC_LANG_PROGRAM([[
#include <ares.h>
/* set of dummy functions in case c-ares was built with debug */
void curl_dofree(void); void curl_dofree(void) {}
void curl_sclose(void); void curl_sclose(void) {}
void curl_domalloc(void); void curl_domalloc(void) {}
void curl_docalloc(void); void curl_docalloc(void) {}
void curl_socket(void); void curl_socket(void) {}
]],[[
ares_channel channel;
ares_cancel(channel); /* added in 1.2.0 */
ares_process_fd(channel, 0, 0); /* added in 1.4.0 */
ares_dup(&channel, channel); /* added in 1.6.0 */
]])
dnl check if c-ares new enough, 1.16.0 or newer
AC_CHECK_FUNC([ares_getaddrinfo],
[
],[
AC_MSG_RESULT([yes])
],[
AC_MSG_RESULT([no])
AC_MSG_ERROR([c-ares library defective or too old])
AC_MSG_ERROR([c-ares library is defective or too old])
dnl restore initial settings
CPPFLAGS="$clean_CPPFLAGS"
LDFLAGS="$clean_LDFLAGS"