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在64位centos5.7下编译安装keepalived-1.2.2，执行make时出现错误。这个错误出现的原因可能是头文件 linux/types.h和sys/types.h的int64_t、u_int64_t定义有冲突，头文件linux/types.h在定义 int64_t等时没有防止重复定义，而sys/types.h头文件在定义int64_t等时是有防止重复定义的措施的。将sys/types.h(其 中包含了linux/types.h)放到所有头文件的前面包含，解决问题。make[2]: Leaving directory `/root/keepalived-1.2.2/keepalived/vrrp'make[2]: Entering directory `/root/keepalived-1.2.2/keepalived/libipvs-2.6'gcc -g -O2 -DETHERTYPE_IPV6=0x86dd -I/usr/src/linux/include -DLIBIPVS_DONTUSE_NL -Wall -Wunused -c -o libipvs.o libipvs.cgcc -g -O2 -DETHERTYPE_IPV6=0x86dd -I/usr/src/linux/include -DLIBIPVS_DONTUSE_NL -Wall -Wunused -c -o ip_vs_nl_policy.o ip_vs_nl_policy.cIn file included from /usr/include/netinet/in.h:23,from ip_vs.h:12,from ip_vs_nl_policy.c:1:/usr/include/stdint.h:41: error: conflicting types for ‘int64_t’/usr/src/linux/include/linux/types.h:126: error: previous declaration of ‘int64_t’ was here/usr/include/stdint.h:56: error: conflicting types for ‘uint64_t’/usr/src/linux/include/linux/types.h:124: error: previous declaration of ‘uint64_t’ was hereIn file included from /usr/include/sys/uio.h:24,from /usr/include/sys/socket.h:27,from /usr/include/netinet/in.h:24,from ip_vs.h:12,from ip_vs_nl_policy.c:1:/usr/include/sys/types.h:46: error: conflicting types for ‘loff_t’/usr/src/linux/include/linux/types.h:58: error: previous declaration of ‘loff_t’ was here/usr/include/sys/types.h:62: error: conflicting types for ‘dev_t’/usr/src/linux/include/linux/types.h:22: error: previous declaration of ‘dev_t’ was hereIn file included from /usr/include/sys/types.h:133,from /usr/include/sys/uio.h:24,from /usr/include/sys/socket.h:27,from /usr/include/netinet/in.h:24,from ip_vs.h:12,from ip_vs_nl_policy.c:1:/usr/include/time.h:105: error: conflicting types for ‘timer_t’/usr/src/linux/include/linux/types.h:31: error: previous declaration of ‘timer_t’ was hereIn file included from /usr/include/sys/uio.h:24,from /usr/include/sys/socket.h:27,from /usr/include/netinet/in.h:24,from ip_vs.h:12,from ip_vs_nl_policy.c:1:/usr/include/sys/types.h:204: error: conflicting types for ‘u_int64_t’/usr/src/linux/include/linux/types.h:125: error: previous declaration of ‘u_int64_t’ was hereIn file included from /usr/include/sys/types.h:220,from /usr/include/sys/uio.h:24,from /usr/include/sys/socket.h:27,from /usr/include/netinet/in.h:24,from ip_vs.h:12,from ip_vs_nl_policy.c:1:/usr/include/sys/select.h:78: error: conflicting types for ‘fd_set’/usr/src/linux/include/linux/types.h:21: error: previous declaration of ‘fd_set’ was hereIn file included from /usr/include/sys/uio.h:24,from /usr/include/sys/socket.h:27,from /usr/include/netinet/in.h:24,from ip_vs.h:12,from ip_vs_nl_policy.c:1:/usr/include/sys/types.h:235: error: conflicting types for ‘blkcnt_t’/usr/src/linux/include/linux/types.h:142: error: previous declaration of ‘blkcnt_t’ was heremake[2]: *** [ip_vs_nl_policy.o] Error 1make[2]: Leaving directory `/root/keepalived-1.2.2/keepalived/libipvs-2.6'make[1]: *** [all] Error 1make[1]: Leaving directory `/root/keepalived-1.2.2/keepalived'make: *** [all] Error 2解决办法：# vim ./keepalived/libipvs-2.6/ip_vs.h将#include <linux/types.h>移动到#include <sys/types.h>后面去。再执行make编译顺利完成。本文出自 “itlaowu” 博客
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