编译问题，在编译libnetfilter_conntrack、libnetfilter_queue时都遇到了。

cisco3640

在centos5.5中编译libnetfilter_conntrack、libnetfilter_queue时都遇到了，使用configure时没有错误提示，然后开始make，系统提示：
Making all in include
make[1]: Entering directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/include'
Making all in libnetfilter_conntrack
make[2]: Entering directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/include/libnetfilter_conntrack'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/include/libnetfilter_conntrack'
Making all in internal
make[2]: Entering directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/include/internal'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/include/internal'
make[2]: Entering directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/include'
make[2]: Nothing to be done for `all-am'.
make[2]: Leaving directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/include'
make[1]: Leaving directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/include'
Making all in src
make[1]: Entering directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/src'
Making all in conntrack
make[2]: Entering directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/src/conntrack'
/bin/sh ../../libtool --tag=CC   --mode=compile gcc -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"libnetfilter_conntrack\" -DVERSION=\"0.9.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DHAVE_ARPA_INET_H=1 -DHAVE_INET_NTOP=1 -DHAVE_INET_NTOP_IPV6=1 -I.  -I../../include   -fPIC -Wall -g -O2 -DLIBNETFILTER_CONNTRACK_DIR=\"/usr/local/lib/libnetfilter_conntrack/\" /usr/local/include/libnfnetlink/libnfnetlink.h -MT api.lo -MD -MP -MF .deps/api.Tpo -c -o api.lo api.c
libtool: compile:  gcc -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"libnetfilter_conntrack\" -DVERSION=\"0.9.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DHAVE_ARPA_INET_H=1 -DHAVE_INET_NTOP=1 -DHAVE_INET_NTOP_IPV6=1 -I. -I../../include -fPIC -Wall -g -O2 -DLIBNETFILTER_CONNTRACK_DIR=\"/usr/local/lib/libnetfilter_conntrack/\" /usr/local/include/libnfnetlink/libnfnetlink.h -MT api.lo -MD -MP -MF .deps/api.Tpo -c api.c  -fPIC -DPIC -o .libs/api.o
gcc: 当有多个文件时不能在已指定 -c 或 -S 的情况下指定 -o
make[2]: *** [api.lo] 错误 1
make[2]: Leaving directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/src/conntrack'
make[1]: *** [all-recursive] 错误 1
make[1]: Leaving directory `/home/lichao/rpm/libnetfilter_conntrack-0.9.0/src'
make: *** [all-recursive] 错误 1



gcc: 当有多个文件时不能在已指定 -c 或 -S 的情况下指定 -o是gcc的版本不匹配造成的吗？是什么原因？


这个问题实在编译安装ulog的最新2.0beta版时产生了：configure: error: Cannot find libnetfilter_conntrack >= 0.0.95错误提示后，想要安装libnetfilter_conntrack的时候出现的。如果大家有什么办法解决ulog的安装也可以帮忙解答一下。谢谢

chn475111

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig