Don't use install -d to create directories.

Always use `mkdir -p`, as install is problematic with regard to
permissions.

Fixes #13452.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69199 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure

@@ -50393,20 +50393,7 @@ else
 fi
 
 
-            { echo "$as_me:$LINENO: checking for command to install directories" >&5
-echo $ECHO_N "checking for command to install directories... $ECHO_C" >&6; }
-    INSTALL_TEST_DIR=acbftest$$
-    $INSTALL -d $INSTALL_TEST_DIR > /dev/null 2>&1
-    if test $? = 0 -a -d $INSTALL_TEST_DIR; then
-        rmdir $INSTALL_TEST_DIR
-                        INSTALL_DIR='$(INSTALL) -d'
-        { echo "$as_me:$LINENO: result: $INSTALL -d" >&5
-echo "${ECHO_T}$INSTALL -d" >&6; }
-    else
-        INSTALL_DIR="mkdir -p"
-        { echo "$as_me:$LINENO: result: mkdir -p" >&5
-echo "${ECHO_T}mkdir -p" >&6; }
-    fi
+    INSTALL_DIR="mkdir -p"
 
 
     LDFLAGS_GUI=