Dear Sirs, I'm trying to configure ppl 1.0 ( I downloaded the tar.gz source) after installing gmp 5.1. at /usr/local Output says I haven't GMP version 4.1.3 or later. I had also installed GMP 4.1.4 version but I configured using --with-gmp=/usr/local to select the last gmp version. tried setting CXX to c++ and CC to cc . Of sourse, I used the --enable-cxx option to configure gmp. GMP check is ok. Is there any way I could overcome this trouble? Thank you very much in advance for your attention. Kind regards, Antonio -- Dr. Antonio J. Díaz Quintana Instituto de Bioquímica Vegetal Y Fotosíntesis Centro de Investigaciones Científicas Isla de la Cartuja Universidad de Sevilla y C.S.I.C. Phone: +34 954 489 507 http://www.ibvf.csic.es/node/63