Firebird2.7安装时这些错误信息是什么意思？

fisi

各位拜托帮帮忙：我在安装Firebird2.70时执行make后出现以下错误信息，怎样解决？谢谢！谢谢！
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[bbsadm@192 bbs_src]$ make
gcc -O2 -DSHOW_IDLE_TIME -DWITHOUT_CHROOT -DLINUX -DTERMIOS -c bbs.c
In file included from bbs.c:25:
bbs.h:71: parse error before "__extension__"
bbs.h:71: `__len' undeclared here (not in a function)
bbs.h:71: initializer element is not constant
bbs.h:71: parse error before "if"
bbs.h:71: conflicting types for `__retval'
bbs.h:71: previous declaration of `__retval'
bbs.h:71: warning: data definition has no type or storage class
bbs.h:71: parse error before '}' token
make: *** [bbs.o] Error 1