From: Ruediger Meier <ruediger.me...@ga-group.nl>
We want to use it later to do checks for getaddrinfo and getnameinfo
more portable.
---
acinclude.m4 | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 57 insertions(+), 0 deletions(-)
diff --git a/acinclude.m4 b/acinclude.m4
index d91c733..38d1819 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -486,6 +486,63 @@ AC_DEFUN([SANE_CHECK_GPHOTO2],
])
#
+# Checks for functions which comming usually from netdb.h or ws2tcpip.h (e.g.
+# getaddrinfo). Header checks have to be done before as well as adding the
right
+# libs
+AC_DEFUN([SANE_CHECK_NETDB_FUNC],
+[
+ sane_netdb_includes="$ac_includes_default
+ #ifdef HAVE_SYS_SOCKET_H
+ # include <sys/socket.h>
+ #endif
+ #ifdef HAVE_NETDB_H
+ # include <netdb.h>
+ #endif
+ #ifdef HAVE_WINSOCK2_H
+ # include <winsock2.h>
+ #endif
+ #ifdef HAVE_WS2TCPIP_H
+ # include <ws2tcpip.h>
+ #endif"
+
+ ac_cv_func_$1="no"
+ need_winver_xp="no"
+
+ AC_MSG_CHECKING([for win32 ]$1)
+ AC_TRY_COMPILE(
+ [$sane_netdb_includes],
+ [int testme(){ ]$1[; }],
+ [AC_MSG_RESULT(yes)
+ ac_cv_func_$1="yes"],
+ [AC_MSG_RESULT(no)])
+
+ dnl Under mingw, we may need to set WINVER to 0x0501 to expose the function.
+ if test "$ac_cv_func_$1" != "yes"; then
+ AC_MSG_CHECKING([for win32 ]$1[ if WINVER is 0x0501])
+ AC_TRY_COMPILE(
+ [#define WINVER 0x0501
+ $sane_netdb_includes],
+ [int testme(){ ]$1[; }],
+ [AC_MSG_RESULT(yes)
+ ac_cv_func_$1="yes"
+ need_winver_xp="yes"],
+ [AC_MSG_RESULT(no)])
+ fi
+
+ if test "$ac_cv_func_$1" = "yes"; then
+ AC_DEFINE([HAVE_]translit($1, [a-z], [A-Z]), [1],
+ [Define to 1 if you have the `]$1[' function.])
+
+ if test "$need_winver_xp" = "yes"; then
+ AC_DEFINE([NEED_WINVER_XP], [1],
+ [Define to 1 if some win32 functions needs WINVER set.])
+ fi
+ fi
+
+ unset sane_netdb_includes
+])
+
+#
# Check for AF_INET6, determines whether or not to enable IPv6 support
# Check for ss_family member in struct sockaddr_storage
AC_DEFUN([SANE_CHECK_IPV6],
--
1.7.6.1
