cmake 出现错误啊

[duke315]

咋办 cmake 报错了
Determining if the pthread_create exist failed with the following output:
Change Dir: /usr/local/src/QConf/build/CMakeFiles/CMakeTmp

Run Build Command:/usr/bin/gmake "cmTryCompileExec3552244451/fast"
/usr/bin/gmake -f CMakeFiles/cmTryCompileExec3552244451.dir/build.make CMakeFiles/cmTryCompileExec3552244451.dir/build
gmake[1]: Entering directory /usr/local/src/QConf/build/CMakeFiles/CMakeTmp' /usr/bin/cmake -E cmake_progress_report /usr/local/src/QConf/build/CMakeFiles/CMakeTmp/CMakeFiles 1 Building C object CMakeFiles/cmTryCompileExec3552244451.dir/CheckSymbolExists.c.o /usr/bin/cc -o CMakeFiles/cmTryCompileExec3552244451.dir/CheckSymbolExists.c.o -c /usr/local/src/QConf/build/CMakeFiles/CMakeTmp/CheckSymbolExists.c Linking C executable cmTryCompileExec3552244451 /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTryCompileExec3552244451.dir/link.txt --verbose=1 /usr/bin/cc CMakeFiles/cmTryCompileExec3552244451.dir/CheckSymbolExists.c.o -o cmTryCompileExec3552244451 -rdynamic CMakeFiles/cmTryCompileExec3552244451.dir/CheckSymbolExists.c.o: In function main':
CheckSymbolExists.c:(.text+0xc): undefined reference to pthread_create' collect2: ld 返回 1 gmake[1]: Leaving directory /usr/local/src/QConf/build/CMakeFiles/CMakeTmp'
gmake[1]: *** [cmTryCompileExec3552244451] 错误 1
gmake: *** [cmTryCompileExec3552244451/fast] 错误 2