Im getting the following errors when I run make, ./configure runs fine, no errors. I have bison and flex installed. cyblops2a:/usr/local/syslog-ng-1.9.8 # make make all-recursive make[1]: Entering directory `/usr/local/syslog-ng-1.9.8' Making all in src make[2]: Entering directory `/usr/local/syslog-ng-1.9.8/src' gcc -g -O2 -Wall -g -o syslog-ng main.o libsyslog-ng.a -lnsl -Wl,-Bstatic -lfl -L/usr/local/lib -lglib-2.0 -L/usr/local/lib -levtlog -Wl,-Bdynamic libsyslog-ng.a(cfg.o)(.text+0x5d6): In function `cfg_new': /usr/local/syslog-ng-1.9.8/src/cfg.c:247: undefined reference to `lex_init' libsyslog-ng.a(cfg-grammar.o)(.text+0x17): In function `yyerror': /home/bazsi/zwa/work/syslog-ng-2.0/syslog-ng/src/cfg-grammar.y:829: undefined reference to `linenum' libsyslog-ng.a(cfg-grammar.o)(.text+0x18ea): In function `yyparse': /home/bazsi/zwa/work/syslog-ng-2.0/syslog-ng/src/cfg-grammar.c:1689: undefined reference to `yylex' collect2: ld returned 1 exit status make[2]: *** [syslog-ng] Error 1 make[2]: Leaving directory `/usr/local/syslog-ng-1.9.8/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/usr/local/syslog-ng-1.9.8' make: *** [all] Error 2 Can anyone advise on a fix. Stuart