fcitx-3.0.0在slackware10下安装失败！？

鸟儿

如题，解开源代码，“./configure”这步就出错了！请各位老大拉兄弟一把！信息如下：
checking for a BSD-compatible install... /usr/bin/ginstall -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for style of include used by make... GNU
checking dependency style of gcc... gcc3
checking for a BSD-compatible install... /usr/bin/ginstall -c
checking whether make sets $(MAKE)... (cached) yes
checking for ranlib... ranlib
checking for ld used by GCC... /usr/i486-slackware-linux/bin/ld
checking if the linker (/usr/i486-slackware-linux/bin/ld) is GNU ld... yes
checking for shared library run path origin... done
checking for iconv... yes
checking for iconv declaration...
         extern size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
checking how to run the C preprocessor... /lib/cpp
configure: error: C preprocessor "/lib/cpp" fails sanity check
See `config.log' for more details.
:help
顺便提一下：我是在升级kernel－2.6.7才编译的，并且删除了原内核的头文件的包kernel-headers-2.4.26-i386-3.tgz不知和这个有没有关系？