I get a error at make progress The error message: $ make make all-recursive make[1]: Entering directory `/f/dev-cpp/work/ginac' Making all in ginac make[2]: Entering directory `/f/dev-cpp/work/ginac/ginac' make[2]: Nothing to be done for `all'. make[2]: Leaving directory `/f/dev-cpp/work/ginac/ginac' Making all in check make[2]: Entering directory `/f/dev-cpp/work/ginac/check' make[2]: Nothing to be done for `all'. make[2]: Leaving directory `/f/dev-cpp/work/ginac/check' Making all in ginsh make[2]: Entering directory `/f/dev-cpp/work/ginac/ginsh' if g++ -DHAVE_CONFIG_H -I. -I. -I.. -I./../ginac -I../ginac -DIN_GINAC -I/usr/local/include -g -O2 -MT ginsh_parser.o -MD -MP -MF ".deps/ginsh_parser.Tpo" -c -o ginsh_parser.o ginsh_parser.cc; \ then mv -f ".deps/ginsh_parser.Tpo" ".deps/ginsh_parser.Po"; else rm -f ".deps/ginsh_parser.Tpo"; exit 1; fi ../../GiNaC/ginsh/ginsh_parser.yy:32:26: sys/resource.h: No such file or directory ../../GiNaC/ginsh/ginsh_parser.yy:64: error: aggregate `rusage start_time' has incomplete type and cannot be defined ../../GiNaC/ginsh/ginsh_parser.yy:64: error: aggregate `rusage end_time' has incomplete type and cannot be defined ../../GiNaC/ginsh/ginsh_parser.yy: In function `int yyparse()': ../../GiNaC/ginsh/ginsh_parser.yy:213: error: `RUSAGE_SELF' undeclared (first use this function) ../../GiNaC/ginsh/ginsh_parser.yy:213: error: (Each undeclared identifier is reported only once for each function it appears in.) ../../GiNaC/ginsh/ginsh_parser.yy:213: error: `getrusage' undeclared (first use this function) make[2]: *** [ginsh_parser.o] Error 1 make[2]: Leaving directory `/f/dev-cpp/work/ginac/ginsh' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/f/dev-cpp/work/ginac' make: *** [all] Error 2 have any solution? _________________________________________________________________ 信箱不夠大？MSN Hotmail Plus：讓你的 Hotmail 信箱容量增加 1000 倍 http://join.msn.com/?pgmarket=zh-tw