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on winsock systems linking is done using library 'ws2_32' when

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winsock2.h is available, and library 'winsock' is used when only
winsock.h is available.
This commit is contained in:
Yang Tse 2008-05-18 20:13:13 +00:00
parent 7358db5c27
commit 560a82aeaf
2 changed files with 80 additions and 32 deletions
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52
ares/configure.ac
View File

@ -226,20 +226,44 @@ fi
if test "$HAVE_GETHOSTBYNAME" != "1"
then
dnl This is for Msys/Mingw
AC_MSG_CHECKING([for gethostbyname in ws2_32])
my_ac_save_LIBS=$LIBS
LIBS="-lws2_32 $LIBS"
AC_TRY_LINK([#include <winsock2.h>],
[gethostbyname("www.dummysite.com");],
[ dnl worked!
ws2="yes"
AC_MSG_RESULT([yes])
HAVE_GETHOSTBYNAME="1"],
[ dnl failed, restore LIBS
LIBS=$my_ac_save_LIBS
AC_MSG_RESULT(no)]
)
dnl This is for winsock systems
if test "$ac_cv_header_windows_h" = "yes"; then
if test "$ac_cv_header_winsock_h" = "yes"; then
winsock_LIB="-lwinsock"
fi
if test "$ac_cv_header_winsock2_h" = "yes"; then
winsock_LIB="-lws2_32"
fi
if test ! -z "$winsock_LIB"; then
my_ac_save_LIBS=$LIBS
LIBS="$winsock_LIB $LIBS"
AC_MSG_CHECKING([for gethostbyname in $winsock_LIB])
AC_TRY_LINK([
#ifdef HAVE_WINDOWS_H
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#else
#ifdef HAVE_WINSOCK_H
#include <winsock.h>
#endif
#endif
#endif
],[
gethostbyname("www.dummysite.com");
],[
AC_MSG_RESULT([yes])
HAVE_GETHOSTBYNAME="1"
],[
AC_MSG_RESULT([no])
winsock_LIB=""
LIBS=$my_ac_save_LIBS
])
fi
fi
fi
if test "$HAVE_GETHOSTBYNAME" != "1"

60
configure.ac
View File

@ -503,20 +503,44 @@ fi
if test "$HAVE_GETHOSTBYNAME" != "1"
then
dnl This is for Msys/Mingw
AC_MSG_CHECKING([for gethostbyname in ws2_32])
my_ac_save_LIBS=$LIBS
LIBS="-lws2_32 $LIBS"
AC_TRY_LINK([#include <winsock2.h>],
[gethostbyname("www.dummysite.com");],
[ dnl worked!
ws2="yes"
AC_MSG_RESULT([yes])
HAVE_GETHOSTBYNAME="1"],
[ dnl failed, restore LIBS
LIBS=$my_ac_save_LIBS
AC_MSG_RESULT(no)]
)
dnl This is for winsock systems
if test "$ac_cv_header_windows_h" = "yes"; then
if test "$ac_cv_header_winsock_h" = "yes"; then
winsock_LIB="-lwinsock"
fi
if test "$ac_cv_header_winsock2_h" = "yes"; then
winsock_LIB="-lws2_32"
fi
if test ! -z "$winsock_LIB"; then
my_ac_save_LIBS=$LIBS
LIBS="$winsock_LIB $LIBS"
AC_MSG_CHECKING([for gethostbyname in $winsock_LIB])
AC_TRY_LINK([
#ifdef HAVE_WINDOWS_H
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#else
#ifdef HAVE_WINSOCK_H
#include <winsock.h>
#endif
#endif
#endif
],[
gethostbyname("www.dummysite.com");
],[
AC_MSG_RESULT([yes])
HAVE_GETHOSTBYNAME="1"
],[
AC_MSG_RESULT([no])
winsock_LIB=""
LIBS=$my_ac_save_LIBS
])
fi
fi
fi
if test "$HAVE_GETHOSTBYNAME" != "1"
@ -2039,7 +2063,7 @@ fi
dnl For some reason, the check above doesn't properly detect select() with
dnl Msys/Mingw
if test "$ac_cv_func_select" = "no"; then
AC_MSG_CHECKING([for select in ws2_32])
AC_MSG_CHECKING([for select in $winsock_LIB])
AC_TRY_LINK([
#undef inline
#ifdef HAVE_WINDOWS_H
@ -2426,15 +2450,15 @@ AC_HELP_STRING([--disable-hidden-symbols],[Leave all symbols with default visibi
)
dnl ************************************************************
if test "x$ws2" = "xyes"; then
if test ! -z "$winsock_LIB"; then
dnl If ws2_32 is wanted, make sure it is the _last_ lib in LIBS (makes
dnl things work when built with c-ares). But we can't just move it last
dnl since then other stuff (SSL) won't build. So we simply append it to the
dnl end.
LIBS="$LIBS -lws2_32"
TEST_SERVER_LIBS="$TEST_SERVER_LIBS -lws2_32"
LIBS="$LIBS $winsock_LIB"
TEST_SERVER_LIBS="$TEST_SERVER_LIBS $winsock_LIB"
fi