Commit dddcd3b0 authored by Yang Tse's avatar Yang Tse
Browse files

curl-functions.m4: update detection logic of getaddrinfo() thread-safeness 

Take in account that POSIX standard Issue 7 drops h_errno support. Now, we also
consider getaddrinfo() to be thread-safe when (_POSIX_C_SOURCE >= 200809L) or
(_XOPEN_SOURCE >= 700) independently of whether h_errno exists or not.
parent c6825b7a

m4/curl-functions.m4

+18 −2
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@ 
#                            | (__| |_| |  _ <| |___

#                             \___|\___/|_| \_\_____|

#

# Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.

# Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.

#

# This software is licensed as described in the file COPYING, which

# you should have received as part of this distribution. The terms
@@ -21,7 +21,7 @@ 
#***************************************************************************



# File version for 'aclocal' use. Keep it a single number.

# serial 68

# serial 69





dnl CURL_INCLUDES_ARPA_INET
@@ -2196,6 +2196,22 @@ AC_DEFUN([CURL_CHECK_FUNC_GETADDRINFO], [ 
        tst_tsafe_getaddrinfo="yes"

        ;;

    esac

    if test "$tst_tsafe_getaddrinfo" = "unknown"; then

      AC_COMPILE_IFELSE([

        AC_LANG_PROGRAM([[

        ]],[[

#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200809L)

          return 0;

#elif defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 700)

          return 0;

#else

          force compilation error

#endif

        ]])

      ],[

        tst_tsafe_getaddrinfo="yes"

      ])

    fi

    if test "$tst_tsafe_getaddrinfo" = "unknown"; then

      CURL_CHECK_DEF_CC([h_errno], [

        $curl_includes_ws2tcpip