graphcalc und make --> Fehlermeldung

Salve.... Ich will mir GraphCalc 0.0.1 istallieren... http://gcalc.sourceforge.net/ nach qmake make kommt: [marcus@localhost linux]$ make g++ -c -pipe -Wall -W -O2 -g -pipe -march=i386 -mcpu=i686 -fno-use-cxa-atexit -fno-exceptions -DQT_NO_DEBUG -I/usr/lib/qt-3.1/mkspecs/default -I. -I/usr/kde/3.1/include -I/usr/lib/qt-3.1/include -I.ui/ -I. -I.moc/ -o .obj/expression.o expression.cpp expression.cpp: In member function `QString expression::evaluate()': expression.cpp:118: error: `p' undeclared (first use this function) expression.cpp:118: error: (Each undeclared identifier is reported only once for each function it appears in.) make: *** [.obj/expression.o] Fehler 1 [marcus@localhost linux]$ CLN und GMP habe ich installiert.... Weiss einer etwas dazu? KDE 3.1.4 Fedora, Kernel 2.6.0 Mfg