Respect the REUSEADDR flag to allow rebinding; bind to local port prior to connecting...

[wxWidgets.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index 676aeb70b8dc532870aaf7716273bdfe424836a4..4f4ecb9682151821e5cc7eb2ee7862134db23318 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -43,13 +43,13 @@ for ac_dir in $1 /usr/include;
 ])
 
 dnl ---------------------------------------------------------------------------
-dnl call WX_PATH_FIND_LIBRARIES(search path, header name), sets ac_find_libraries
+dnl call WX_PATH_FIND_LIBRARIES(search path, lib name), sets ac_find_libraries
 dnl to the full name of the file that was found or leaves it empty if not found
 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_PATH_FIND_LIBRARIES],
 [
-ac_find_libraries=
-for ac_dir in $1 /usr/lib;
+  ac_find_libraries=
+  for ac_dir in $1;
   do
     for ac_extension in a so sl dylib dll.a; do
       if test -f "$ac_dir/lib$2.$ac_extension"; then
@@ -60,6 +60,19 @@ for ac_dir in $1 /usr/lib;
   done
 ])
 
+dnl ---------------------------------------------------------------------------
+dnl return list of standard library paths
+dnl ---------------------------------------------------------------------------
+dnl return all default locations:
+dnl   - /usr/lib: standard
+dnl   - /usr/lib32: n32 ABI on IRIX
+dnl   - /usr/lib64: n64 ABI on IRIX
+dnl   - /usr/lib/64: 64 bit ABI on Solaris and Linux x86-64
+dnl
+dnl NB: if any of directories in the list is not a subdir of /usr, code setting
+dnl     wx_cv_std_libpath needs to be updated
+AC_DEFUN([WX_STD_LIBPATH], [/usr/lib /usr/lib32 /usr/lib/64 /usr/lib64])
+
 dnl ---------------------------------------------------------------------------
 dnl Path to include, already defined
 dnl ---------------------------------------------------------------------------
@@ -80,16 +93,25 @@ AC_DEFUN([WX_INCLUDE_PATH_EXIST],
 ])
 
 dnl ---------------------------------------------------------------------------
-dnl Path to link, already defined
+dnl Usage: WX_LINK_PATH_EXIST(path, libpath)
+dnl
+dnl Set ac_path_to_link to nothing if path is already in libpath of to -Lpath
+dnl if it is not, so that libpath can be set to "$libpath$ac_path_to_link"
+dnl after calling this function
 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_LINK_PATH_EXIST],
 [
-  echo "$2" | grep "\-L$1" > /dev/null
-  result=$?
-  if test $result = 0; then
+  dnl never add -L/usr/libXXX explicitely to libpath
+  if test "$1" = "default location"; then
     ac_path_to_link=""
   else
-    ac_path_to_link=" -L$1"
+    echo "$2" | grep "\-L$1" > /dev/null
+    result=$?
+    if test $result = 0; then
+      ac_path_to_link=""
+    else
+      ac_path_to_link=" -L$1"
+    fi
   fi
 ])
 
@@ -313,10 +335,11 @@ AC_DEFUN([WX_ARG_SYS_WITH],
         ])
 
 dnl this macro checks for a command line argument and caches the result
-dnl usage: WX_ARG_WITH(option, helpmessage, variable-name)
+dnl usage: WX_ARG_WITH(option, helpmessage, variable-name, [withstring])
 AC_DEFUN([WX_ARG_WITH],
         [
-          AC_MSG_CHECKING([for --with-$1])
+         withstring=$4
+          AC_MSG_CHECKING([for --${withstring:-with}-$1])
           no_cache=0
           AC_ARG_WITH($1, [$2],
                       [