--- mp3blaster-3.2.5.old/configure
+++ mp3blaster-3.2.5/configure
@@ -2267,7 +2267,7 @@
 
 
 #Custom C++ flags - later options override earlier ones
-if  -z "$CXXFLAGS"  ; then
+if [ -z "$CXXFLAGS" ]; then
 	CXXFLAGS="-O2 -Wall -W -fno-strength-reduce"
 fi