This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. configure:575: checking for cc configure:688: checking whether the C compiler (cc -fno-common -pthread) works configure:704: cc -o conftest -fno-common -I/usr/local/include -I/usr/local/include -I/usr/X11R6/include -D_GETOPT_H -pthread conftest.c -Wl,-export-dynamic -L/usr/local/lib -L/usr/X11R6/lib -ljpeg -L/usr/X11R6/lib 1>&5 cc: unrecognized option `-pthread' ld: unknown flag: -export-dynamic configure: failed program was: #line 699 "configure" #include "confdefs.h" main(){return(0);}