MYSQL安装求救！

.................................. configure:6405: checking for off_t configure:6438: checking for st_rdev in struct stat configure:6451: gcc -c -O3 -DDBUG_OFF conftest.c 1>&5 configure:6472: checking whether time.h and sys/time.h may both be included configure:6486: gcc -c -O3 -DDBUG_OFF conftest.c 1>&5 configure:6507: checking whether struct tm is in sys/time.h or time.h configure:6520: gcc -c -O3 -DDBUG_OFF conftest.c 1>&5 configure:6543: checking size of char configure:6562: gcc -o conftest -O3 -DDBUG_OFF -rdynamic conftest.c -lpthread -lz -lcrypt -lnsl -lm -lpthread 1>&5 configure: failed program was: #line 6551 "configure" #include "confdefs.h" #include <stdio.h> main() { FILE *f=fopen("conftestval", "w"); if (!f) exit(1); fprintf(f, "%d\n", sizeof(char)); exit(0) } ................................... 以下为configur文件的6551行后内容 #line 6551 "configure" #include "confdefs.h" －－－本行为6551行 #include <stdio.h> main() { FILE *f=fopen("conftestval", "w"); if (!f) exit(1); fprintf(f, "%d\n", sizeof(char)); exit(0); } .................................. 我编译不成功的原因是什么哪？是不是缺少confdefs.h文件？或是其他原因？ 系统提示的文件libm.a我使用locate命令查找在/usr/lib下面是有的，我做了一个copy到/lib下面 再试还是提示不行! 请大侠指教//3x