C语言 C：体系结构 x86_64 的未定义符号
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C: Undefined symbols for architecture x86_64
提问by system
I call the function phtread_kill(gpsNavigationThread, 0)and ge the following error
我调用函数phtread_kill(gpsNavigationThread, 0)并得到以下错误
Undefined symbols for architecture x86_64:
体系结构 x86_64 的未定义符号：
"_phtread_kill", referenced from:
_startgpswatchdog in ccXXNhjy.o
ld: symbol(s) not found for architecture x86_64
I #include <pthread.h>so am not sure what the issue is.
我#include <pthread.h>不确定是什么问题。
I link as follows
我链接如下
gcc gps_nav.c dijk.c serial.c parser.c nav_corelogic.c -I/usr/include/libxml2 -lxml2 -lm -lpthread -o logic
I also #include signal.h but am not sure if there is a library for linking with it.
我也#include signal.h，但不确定是否有与之链接的库。
回答by karlphillip
It's
它是
pthread_kill(gpsNavigationThread, 0)
not:
不是：
phtread_kill(gpsNavigationThread, 0)
回答by Tom Wadley
Have you linked with the pthreads library: -lpthread
您是否已链接到 pthreads 库：-lpthread
回答by Henno Brandsma
Did you compile with -lpthread ?
你用 -lpthread 编译了吗？
回答by Douglas Leeder
Try the -pthreadoption, which should set the appropriate options for both compilation and linking.
试试这个-pthread选项，它应该为编译和链接设置适当的选项。
