用的是Ubuntu8.04，在configure时报了一段没有指明的error，其附近的输出是这样的：

checking for g++ option to produce PIC... -fPIC
checking if g++ PIC flag -fPIC works... yes
checking if g++ static flag -static works... yes
checking if g++ supports -c -o file.o... yes
checking whether the g++ linker (/usr/bin/ld) supports shared libraries... yes
checking dynamic linker characteristics... GNU/Linux ld.so
(cached) (cached) checking how to hardcode library paths into programs... immediate
appending configuration tag "F77" to libtool
checking for a BSD-compatible install... /usr/bin/install -c
checking whether ln -s works... yes
checking whether make sets $(MAKE)... (cached) yes
checking for bison... no
checking for byacc... no
checking for gzgets in -lz... yes
checking for pthread_create in -lpthread... yes
checking for sendmail... no
configure: error: not found

终端输入：./configure --prefix=/home/bbs --enable-site=fb2k-v2 --without-php --without-mysql --enable-ssh --enable-ssl --without-libesmtp

谢谢！
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