Hi All, First of all: You're doing a great job with GiNaC! I've tried to compile the GiNaC-1.2.1 version with g++-3.3.3-41 under a SuSE9.1 Linux system. Got the following: g++ -DHAVE_CONFIG_H -I. -I. -I.. -g -O2 -MT input_lexer.lo -MD -MP -MF .deps/input_lexer.Tpo -c input_lexer.cc -fPIC -DPIC -o .libs/input_lexer.oIn file included from /home/cbauer/projects/GiNaC-1.2/ginac/input_lexer.ll:35:input_lexer.h:43: error: conflicting types for `char ginac_yytext[]' input_lexer.cc:446: error: previous declaration as `char*ginac_yytext' input_lexer.h:43: error: storage size of `ginac_yytext' isn't known input_lexer.h:43: error: storage size of `ginac_yytext' isn't known make[2]: *** [input_lexer.lo] Error 1 make[2]: Leaving directory `/usr/local/src/ginac/GiNaC-1.2.1/ginac' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/usr/local/src/ginac/GiNaC-1.2.1' make: *** [all] Error 2 Cheers, Kai -- http://echempp.sourceforge.net Kai Ludwig Institut für Organische Chemie Auf der Morgenstelle 18 72076 Tübingen Tel.: 07071/29-73049 Mail: kai.ludwig@uni-tuebingen.de