Index: audacity-src-1.3.7/lib-src/sbsms/configure
===================================================================
--- audacity-src-1.3.7.orig/lib-src/sbsms/configure
+++ audacity-src-1.3.7/lib-src/sbsms/configure
@@ -15359,7 +15359,7 @@ else
 fi
 
 
-CXXFLAGS=`echo $CXXFLAGS | sed -e "s/-g//" -e "s/-O2//"`
+CXXFLAGS=`echo " $CXXFLAGS" | sed -e "s/\\s-g\\S*//" -e "s/\\s-O2//"`
 
 if test x$enable_debug = xyes; then
    CXXFLAGS="$CXXFLAGS -g -O0"
Index: audacity-src-1.3.7/lib-src/sbsms/configure.in
===================================================================
--- audacity-src-1.3.7.orig/lib-src/sbsms/configure.in
+++ audacity-src-1.3.7/lib-src/sbsms/configure.in
@@ -123,7 +123,7 @@ else
 fi
 AM_CONDITIONAL(ENABLE_PORTAUDIO, test x$enable_portaudio = xyes)
 
-CXXFLAGS=`echo $CXXFLAGS | sed -e "s/-g//" -e "s/-O2//"`
+CXXFLAGS=`echo " $CXXFLAGS" | sed -e "s/\\s-g\\S*//" -e "s/\\s-O2//"`
 
 if test x$enable_debug = xyes; then
    CXXFLAGS="$CXXFLAGS -g -O0"