diff --git a/Makefile.am b/Makefile.am
index 69706a8..7bfa767 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -45,6 +45,18 @@ endif
 
 endif
 
+if cwWEB
+  FFT_DIR   = $(HOME)/src/fftw-3.3.8/build
+  FFT_DIR_D   = $(FFT_DIR)/d
+  FFT_DIR_S   = $(FFT_DIR)/s
+
+  AM_CXXFLAGS += --std=c++11
+  AM_CPPFLAGS += -I$(FFT_DIR)/include -I$(FFT_DIR_D)/include -I$(FFT_DIR_S)/include
+  AM_LDFLAGS  += -L$(FFT_DIR)/lib     -L$(FFT_DIR_D)/lib     -L$(FFT_DIR_S)/lib
+else
+  AM_CXXFLAGS += --std=c++17
+endif
+
 include src/libcw/Makefile.am
 
 libcw_la_SOURCES  = $(libcwSRC) $(libcwHDR)
diff --git a/configure.ac b/configure.ac
index d49baae..9a8fb49 100644
--- a/configure.ac
+++ b/configure.ac
@@ -125,24 +125,43 @@ echo "alsa=${alsa}"
 
 
 # check for C++17
-hasCpp17=true
-AX_CHECK_COMPILE_FLAG(-std=c++17, [CXXFLAGS="$CXXFLAGS -std=c++17"],[hasCpp17=false])
-if test x"$hasCpp17" = xtrue; then
-AC_DEFINE([cwCPP17], 1,[C++ 17 is available.])
-else
+# hasCpp17=true
+# AX_CHECK_COMPILE_FLAG(-std=c++17, [CXXFLAGS="$CXXFLAGS -std=c++17"],[hasCpp17=false])
+# if test x"$hasCpp17" = xtrue; then
+# AC_DEFINE([cwCPP17], 1,[C++ 17 is available.])
+# else
 
 # C++17 is not available check for C++11
-hasCpp11=true
-AX_CHECK_COMPILE_FLAG([-std=c++11], [CXXFLAGS="$CXXFLAGS -std=c++11"], [hasCpp11=false])
-if test x"$hasCpp11" = xtrue; then
-AC_DEFINE([cwCPP11], 1,[C++ 11 is available.])
+# hasCpp11=true
+# AX_CHECK_COMPILE_FLAG([-std=c++11], [CXXFLAGS="$CXXFLAGS -std=c++11"], [hasCpp11=false])
+# if test x"$hasCpp11" = xtrue; then
+# AC_DEFINE([cwCPP11], 1,[C++ 11 is available.])
+# fi
+# echo "c++11=${hasCpp11}"
+
+#fi
+#echo "c++17=${hasCpp17}"
+
+#
+# Enable ALSA
+#
+
+AC_ARG_ENABLE([web],
+     [  --enable-web    Include WEB dependencies],
+     [case "${enableval}" in
+       yes) web=true ;;
+       no)  web=false ;;
+       *) AC_MSG_ERROR([bad value ${enableval} for --enable-web]) ;;
+     esac],[web=false])
+
+	
+if test x"$web" = xtrue; then
+AC_DEFINE([cwWEB], 1,[Use libweb.])
 fi
-echo "c++11=${hasCpp11}"
-
-fi
-echo "c++17=${hasCpp17}"
 
+AM_CONDITIONAL([cwWEB], [test x$web = xtrue])
 
+echo "web=${web}"
 
 
 # AC_ARG_ENABLE([add_lib],
diff --git a/src/cwtest/main.cpp b/src/cwtest/main.cpp
index 248c075..e3c38f7 100644
--- a/src/cwtest/main.cpp
+++ b/src/cwtest/main.cpp
@@ -51,8 +51,11 @@
 #include "cwIoTest.h"
 #endif
 
+#if defined(cwWeb)
 #include "cwDataSets.h"
 #include "cwSvg.h"
+#endif
+
 #include "cwAudioFile.h"
 #include "cwAudioFileOps.h"
 
@@ -542,6 +545,15 @@ cw::rc_t sockMgrTest( const cw::object_t* cfg, const cw::object_t* args, int arg
   return rc;
 }
 
+#if defined(cwWEB)
+cw::rc_t _no_c11() { return cwLogError(cw::kResourceNotAvailableRC,"C++11 functionality not included in this build."); } 
+
+cw::rc_t mnistTest(   const cw::object_t* cfg, const cw::object_t* args, int argc, const char* argv[] ) { return _no_c11(); }
+cw::rc_t datasetTest( const cw::object_t* cfg, const cw::object_t* args, int argc, const char* argv[] ) { return _no_c11(); }
+cw::rc_t svgTest(     const cw::object_t* cfg, const cw::object_t* args, int argc, const char* argv[] ) { return _no_c11(); }
+
+#else
+
 cw::rc_t mnistTest( const cw::object_t* cfg, const cw::object_t* args, int argc, const char* argv[] )
 {
   char* inDir  = requiredExistingDir( args, "inDir");
@@ -564,6 +576,7 @@ cw::rc_t svgTest(   const cw::object_t* cfg, const cw::object_t* args, int argc,
   cw::mem::release(cssFn);
   return rc;
 }
+#endif
 
 cw::rc_t dirEntryTest( const cw::object_t* cfg, const cw::object_t* args, int argc, const char* argv[] )
 {