--- a/configure.ac
+++ b/configure.ac
@@ -257,9 +257,9 @@ AX_COMPILER_VENDOR
 if test "x${cross_compiling}" = "xyes"; then
     CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
     case "$host" in
-    	 arm*-linux-gnueabi*|arm*-*-linux-gnueabi*)
+    	 arm*-linux-gnueabi*|arm*-*-linux-*)
 		# spandsp modem
-		ac_cv_file__dev_ptmx=yes
+		ac_cv_file__dev_ptmx=no
 		# libjs
 		export ac_cv_va_copy=yes
 		# srtp
@@ -276,7 +276,7 @@ if test "x${cross_compiling}" = "xyes";
 		export apr_cv_mutex_recursive=yes
 		export ac_cv_func_pthread_rwlock_init=yes
 		export apr_cv_type_rwlock_t=yes
-		export apr_cv_process_shared_works=yes
+		#export apr_cv_process_shared_works=no
 		export apr_cv_mutex_robust_shared=yes
 	 ;;
     esac
@@ -419,10 +419,6 @@ elif test "x${ax_cv_c_compiler_vendor}"
     APR_ADDTO(SWITCH_AM_CFLAGS, -fPIC -ffast-math)
     APR_ADDTO(SWITCH_AM_CXXFLAGS, -fPIC -ffast-math)
     AC_SUBST([AM_MOD_AVMD_CXXFLAGS], [-std=gnu99])      # FS-8809, needed for MAP_POPULATE
-    if test "$ac_cv_gcc_supports_w_no_unused_result" = yes; then
-      APR_ADDTO(SWITCH_AM_CFLAGS, -Werror)
-      APR_ADDTO(SWITCH_AM_CFLAGS, -Wno-unused-result)
-    fi
     if test "$ac_cv_gcc_supports_w_no_misleading_indentation" = yes; then
       APR_ADDTO(SWITCH_AM_CFLAGS, -Wno-misleading-indentation)
     fi
@@ -948,7 +944,6 @@ AC_CHECK_LIB(pthread, pthread_setschedpa
 
 AC_CHECK_FUNC(socket, , AC_CHECK_LIB(socket, socket))
 
-AC_CHECK_FILE(/dev/ptmx, [AC_DEFINE(HAVE_DEV_PTMX, 1, [Define if you have /dev/ptmx])])
 AC_CHECK_LIB(util, openpty, [AC_DEFINE(HAVE_OPENPTY, 1, [Define if you have openpty()])])
 
 AC_CHECK_MEMBERS([struct tm.tm_gmtoff],,,[
@@ -1560,18 +1555,18 @@ AM_CONDITIONAL([HAVE_MYSQL],[test "$foun
 # perl checks
 #
 
-AC_CHECK_PROG(PERL,perl,[ac_cv_have_perl=yes],[ac_cv_have_perl=no])
-
-# -a "x$ac_cv_have_EXTERN_h" != "xno"
+AC_CHECK_PROG(PERL,[perl],[yes],[no],[${STAGING_DIR_HOSTPKG}/usr/bin])
+PERL=$as_dir/$ac_word$ac_exec_ext
 
-if test "x$ac_cv_have_perl" != "xno"; then
-   PERL=perl
-   PERL_SITEDIR="`$PERL -MConfig -e 'print $Config{archlib}'`"
-   PERL_LIBDIR="-L`$PERL -MConfig -e 'print $Config{archlib}'`/CORE"
-   PERL_LIBS="`$PERL -MConfig -e 'print $Config{libs}'`"
-   PERL_CFLAGS="-w -DMULTIPLICITY `$PERL -MExtUtils::Embed -e ccopts | sed -e 's|-arch x86_64 -arch i386||'` -DEMBED_PERL"
-   PERL_LDFLAGS="`$PERL -MExtUtils::Embed -e ldopts| sed -e 's|-arch x86_64 -arch i386||'`"
-   PERL_INC="`$PERL -MExtUtils::Embed -e perl_inc`"
+if test "x$ac_cv_prog_PERL" != "xno"; then
+   PERL_VERSION="`$PERL -e 'print substr($^V, 1)' | cut -d. -f1,2`"
+   PERL_SITEDIR_LOCAL="`$PERL -MConfig -e 'print $Config{archlibexp}'`"
+   PERL_SITEDIR="`find ${STAGING_DIR}/usr -name $PERL_VERSION -print`"
+   PERL_LIBDIR="-L$PERL_SITEDIR/CORE"
+   PERL_LIBS="`$PERL -MConfig -e 'print $Config{libs}' | sed -e 's|-lnsl ||g;s| -lgdbm_compat||g'`"
+   PERL_CFLAGS="-w -DMULTIPLICITY -D_REENTRANT -D_GNU_SOURCE -DPERL_USE_SAFE_PUTENV `$PERL -MExtUtils::Embed -e ccopts | sed -e \"s|$PERL_SITEDIR_LOCAL|$PERL_SITEDIR|g;s| -I/usr/local/include||g\"` -DEMBED_PERL"
+   PERL_LDFLAGS="`$PERL -MExtUtils::Embed -e ldopts| sed -e \"s| $PERL_SITEDIR_LOCAL/auto/NDBM_File/NDBM_File.a||g;s| $PERL_SITEDIR_LOCAL/auto/ODBM_File/ODBM_File.a||g;s|$PERL_SITEDIR_LOCAL|$PERL_SITEDIR|g;s|.a |.so |g;s|-lnsl ||g;s|-lgdbm_compat ||g;s|/usr/local|${STAGING_DIR}/usr|g\"`"
+   PERL_INC="-I$PERL_SITEDIR/CORE"
 
    save_CFLAGS="$CFLAGS"
    CFLAGS="$PERL_CFLAGS"
@@ -1581,34 +1576,39 @@ if test "x$ac_cv_have_perl" != "xno"; th
 
    save_LDFLAGS="$LDFLAGS"
    LDFLAGS="$PERL_LDFLAGS"
-   AC_CHECK_LIB([perl], [perl_alloc], ac_cv_use_libperl=yes, ac_cv_use_libperl=no)
+   AC_CHECK_LIB([perl], [perl_alloc], [ac_cv_use_libperl=yes], [ac_cv_use_libperl=no])
    LDFLAGS="$save_LDFLAGS"
 
+   AC_SUBST(PERL)
    AC_SUBST(PERL_SITEDIR)
+   AC_SUBST(PERL_SITEDIR_LOCAL)
    AC_SUBST(PERL_LIBDIR)
    AC_SUBST(PERL_LIBS)
    AC_SUBST(PERL_CFLAGS)
    AC_SUBST(PERL_LDFLAGS)
    AC_SUBST(PERL_INC)
+   AC_SUBST(PERL_VERSION)
 fi
 
-AM_CONDITIONAL([HAVE_PERL],[test "x$ac_cv_have_perl" != "xno" -a "x$ac_cv_have_EXTERN_h" != "xno" -a "x$ac_cv_use_libperl" != "xno"])
+AM_CONDITIONAL([HAVE_PERL],[test "x$ac_cv_prog_PERL" = "xyes" -a "x$ac_cv_have_EXTERN_h" = "xyes" -a "x$ac_cv_use_libperl" = "xyes"])
+#AM_CONDITIONAL([HAVE_PERL],[test "x$ac_cv_prog_PERL" != "xno" -a "x$ac_cv_have_EXTERN_h" != "xno"])
 
 #
 # php checks
 #
 
 AC_CHECK_PROG(PHP,php,[ac_cv_have_php=yes],[ac_cv_have_php=no])
-AC_CHECK_PROG(PHP_CONFIG,php-config,[ac_cv_have_php_config=yes],[ac_cv_have_php_config=no])
+dnl AC_CHECK_PROG(PHP_CONFIG,php-config,[ac_cv_have_php_config=yes],[ac_cv_have_php_config=no],[${STAGING_DIR}/usr/bin])
+AC_CHECK_PROG(PHP_CONFIG,php7-config,[ac_cv_have_php_config=yes],[ac_cv_have_php_config=no],[${STAGING_DIR}/usr/bin])
 AM_CONDITIONAL([HAVE_PHP],[test "x$ac_cv_have_php" != "xno" -a "x$ac_cv_have_php_config" != "xno"])
 
 if test "x$ac_cv_have_php" != "xno" -a "x$ac_cv_have_php_config" != "xno"; then
    PHP=php
-   PHP_CONFIG=php-config
+   PHP_CONFIG=${STAGING_DIR}/usr/bin/php7-config
    PHP_LDFLAGS="`$PHP_CONFIG --ldflags`"
    PHP_LIBS="`$PHP_CONFIG --libs | sed -r 's/ ?-l(bz2|pcre|xml2|gssapi_krb5|krb5|k5crypto|com_err|history|z|readline|gmp|ssl|crypto)//g'`"
    PHP_EXT_DIR="`$PHP_CONFIG --extension-dir`"
-   PHP_INC_DIR="`$PHP -r 'echo ini_get("include_path");' | cut -d: -f2`"
+   PHP_INC_DIR="`$PHP_CONFIG --includes | cut -d" " -f1 | cut -dI -f2`"
    PHP_INI_DIR="`$PHP_CONFIG --configure-options | tr " " "\n" | grep -- --with-config-file-scan-dir | cut -f2 -d=`"
    PHP_CFLAGS="`$PHP_CONFIG --includes`"
    AC_SUBST(PHP_LDFLAGS)
@@ -1623,7 +1623,7 @@ fi
 # Python checks for mod_python
 #
 AC_ARG_WITH(
-	[python],
+	[python3],
 	[AS_HELP_STRING([--with-python], [Use system provided version of python (default: try)])],
 	[with_python="$withval"],
 	[with_python="try"]
@@ -1642,17 +1642,18 @@ then
 		AC_MSG_RESULT([$with_python])
 		AC_SUBST([PYTHON], ["$with_python"])
 	else
-		AC_PATH_PROG([PYTHON], ["python"], ["no"], ["$PATH:/usr/bin:/usr/local/bin"])
+		AC_PATH_PROG([PYTHON], ["python3"], ["no"], ["${STAGING_DIR_HOSTPKG}/bin"])
 	fi
 
 	if test "$PYTHON" != "no" ; then
 		AC_MSG_CHECKING([python version])
-		PYTHON_VER="`$PYTHON -V 2>&1 | cut -d' ' -f2`"
+		PYTHON_VER=`$PYTHON -c "import sys; print('%d.%d' % (sys.version_info[[0]], sys.version_info[[1]]))"`
 
 		if test -z "$PYTHON_VER" ; then
 			AC_MSG_ERROR([Unable to detect python version])
 		fi
 		AC_MSG_RESULT([$PYTHON_VER])
+		AC_SUBST([PYTHON_VER], [$PYTHON_VER])
 
 		AC_MSG_CHECKING([for python distutils])
 		python_result="`$PYTHON -c 'import distutils;' 2>&1`"
@@ -1666,12 +1667,12 @@ then
 		if test "$python_has_distutils" != "no" ; then
 			AC_MSG_CHECKING([location of site-packages])
 
-			PYTHON_SITE_DIR="`$PYTHON -c 'from distutils import sysconfig; print(sysconfig.get_python_lib(0));'`"
+			if test -d "`$PYTHON -c 'from distutils import sysconfig; print(sysconfig.get_python_lib(0));'`" ; then
+				PYTHON_SITE_DIR="`$PYTHON -c 'from distutils import sysconfig; print(sysconfig.get_python_lib(0));'`"
 
-			if test -z "$PYTHON_SITE_DIR" ; then
-				AC_MSG_ERROR([Unable to detect python site-packages path])
-			elif test ! -d "$PYTHON_SITE_DIR" ; then
-				AC_MSG_ERROR([Path $PYTHON_SITE_DIR returned by python does not exist!])
+				if test -z "$PYTHON_SITE_DIR" ; then
+					AC_MSG_ERROR([Unable to detect python site-packages path])
+				fi
 			fi
 			AC_MSG_RESULT([$PYTHON_SITE_DIR])
 			AC_SUBST([PYTHON_SITE_DIR], [$PYTHON_SITE_DIR])
@@ -1679,10 +1680,10 @@ then
 			#
 			# python distutils found, get settings from python directly
 			#
-			PYTHON_CFLAGS="`$PYTHON -c 'from distutils import sysconfig; flags = [[\"-I\" + sysconfig.get_python_inc(0), \"-I\" + sysconfig.get_python_inc(1), \" \".join(sysconfig.get_config_var(\"CFLAGS\").split())]]; print(\" \".join(flags));' | sed -e 's/-arch i386//g;s/-arch x86_64//g'`"
+			PYTHON_CFLAGS="`$PYTHON -c 'from distutils import sysconfig; flags = [[\"-I\" + sysconfig.get_python_inc(0), \"-I\" + sysconfig.get_python_inc(1), \" \".join(sysconfig.get_config_var(\"CFLAGS\").split())]]; print(\" \".join(flags));'`"
 			PYTHON_LDFLAGS="`$PYTHON -c 'from distutils import sysconfig; libs = sysconfig.get_config_var(\"LIBS\").split() + sysconfig.get_config_var(\"SYSLIBS\").split(); libs.append(\"-lpython\"+sysconfig.get_config_var(\"VERSION\")); print(\" \".join(libs));'`"
 			PYTHON_LIB="`$PYTHON -c 'from distutils import sysconfig; print(\"python\" + sysconfig.get_config_var(\"VERSION\"));'`"
-			PYTHON_LIBDIR="`$PYTHON -c 'from distutils import sysconfig; print(sysconfig.get_config_var(\"LIBDIR\"));'`"
+			PYTHON_LIBDIR="`$PYTHON -c 'from distutils import sysconfig; print(sysconfig.get_config_var(\"LIBDIR\"));' | sed -e 's|\(^.*\)/staging_dir/hostpkg|/${STAGING_DIR}/usr|g'`"
 
 			# handle python being installed into /usr/local
 			AC_MSG_CHECKING([python libdir])