diff options
Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index 4ab5bcbdfb..2235c4d889 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -823,9 +823,34 @@ AC_DEFUN([AC_WIRESHARK_C_ARES_CHECK], if test "x$want_c_ares" = "xyes"; then AC_CHECK_LIB(cares, ares_init, [ - C_ARES_LIBS=-lcares - AC_DEFINE(HAVE_C_ARES, 1, [Define to use c-ares library]) - have_good_c_ares=yes + # + # Make sure we have c-ares 1.5 or later; we don't + # support the older API. + # + AC_MSG_CHECKING([whether we have c-ares 1.5 or later]) + AC_TRY_COMPILE( + [ +#include <ares.h> +#include <ares_version.h> + ], + [ +#if ((ARES_VERSION_MAJOR < 1) || \ + (1 == ARES_VERSION_MAJOR == 1 && ARES_VERSION_MINOR < 5)) +#error You lose +#else + return 0; +#endif + ], + [ + AC_MSG_RESULT([yes]) + C_ARES_LIBS=-lcares + AC_DEFINE(HAVE_C_ARES, 1, [Define to use c-ares library]) + have_good_c_ares=yes + ], + [ + AC_MSG_RESULT([no]) + AC_MSG_ERROR([Pre-1.5 versions of c-ares aren't supported]) + ]) ]) else AC_MSG_RESULT(not required) |