在制作GTest时出错

我试图在我的Ubuntu机器上设置GTest环境。 但同时使GTest获得图书馆，我得到以下错误…

som@som-VPCEH25EN:~/Workspace/CPP/gtest-1.6.0/make$ make g++ -I../include -g -Wall -Wextra -lpthread sample1.o sample1_unittest.o gtest_main.a -o sample1_unittest gtest_main.a(gtest-all.o): In function `~ThreadLocal': /home/som/Workspace/CPP/gtest-1.6.0/make/../include/gtest/internal/gtest-port.h:1336: undefined reference to `pthread_getspecific' /home/som/Workspace/CPP/gtest-1.6.0/make/../include/gtest/internal/gtest-port.h:1340: undefined reference to `pthread_key_delete' /home/som/Workspace/CPP/gtest-1.6.0/make/../include/gtest/internal/gtest-port.h:1336: undefined reference to `pthread_getspecific' /home/som/Workspace/CPP/gtest-1.6.0/make/../include/gtest/internal/gtest-port.h:1340: undefined reference to `pthread_key_delete' gtest_main.a(gtest-all.o): In function `testing::internal::ThreadLocal<std::vector<testing::internal::TraceInfo, std::allocator<testing::internal::TraceInfo> > >::GetOrCreateValue() const': /home/som/Workspace/CPP/gtest-1.6.0/make/../include/gtest/internal/gtest-port.h:1372: undefined reference to `pthread_getspecific' /home/som/Workspace/CPP/gtest-1.6.0/make/../include/gtest/internal/gtest-port.h:1379: undefined reference to `pthread_setspecific' gtest_main.a(gtest-all.o): In function `testing::internal::ThreadLocal<testing::TestPartResultReporterInterface*>::CreateKey()': /home/som/Workspace/CPP/gtest-1.6.0/make/../include/gtest/internal/gtest-port.h:1365: undefined reference to `pthread_key_create' gtest_main.a(gtest-all.o): In function `testing::internal::ThreadLocal<std::vector<testing::internal::TraceInfo, std::allocator<testing::internal::TraceInfo> > >::CreateKey()': /home/som/Workspace/CPP/gtest-1.6.0/make/../include/gtest/internal/gtest-port.h:1365: undefined reference to `pthread_key_create' gtest_main.a(gtest-all.o): In function `testing::internal::ThreadLocal<testing::TestPartResultReporterInterface*>::GetOrCreateValue() const': /home/som/Workspace/CPP/gtest-1.6.0/make/../include/gtest/internal/gtest-port.h:1372: undefined reference to `pthread_getspecific' /home/som/Workspace/CPP/gtest-1.6.0/make/../include/gtest/internal/gtest-port.h:1379: undefined reference to `pthread_setspecific' collect2: ld returned 1 exit status make: *** [sample1_unittest] Error 1 

Answer 1

尝试在g ++命令gtest_main.a -lpthread移动到gtest_main.a之后。

Answer 2

我有同样的问题，我把Makefile中的-lpthread改为-pthread 。 （我退出了小'L'）。之后，一个“编译”没有错误编译。

Answer 3

你见过Erik Smistad关于如何在Ubuntu上开始w / gtest 的优秀教程吗？ 我刚试过（K）的Ubuntu 12.04，它的工作完美。 总之，你需要做的是

 sudo apt-get install cmake libgtest-dev cd /usr/src/gtest sudo cmake CMakeLists.txt sudo make sudo cp *.a /usr/lib 

如果以root身份运行make和cmake会感觉不舒服，则必须将/ usr / src / gtest复制到用户可写的目录中。 在教程中，Erik还提供了一个带有CMakeLists.txt的示例testing来构build它。

Answer 4

把“-L / usr / local / $（uname -m）-linux-gnu”放到你的LDFLAGS中，在你的连接器（ld）命令行中加上“-pthread”。 （是的，这是-pthread，而不是-lpthread）

Answer 5

gtest-1.6.0 / make中的文件你应该看看下面的Makefile。 差异在最后一行

 # A sample Makefile for building Google Test and using it in user # tests. Please tweak it to suit your environment and project. You # may want to move it to your project's root directory. # # SYNOPSIS: # # make [all] - makes everything. # make TARGET - makes the given target. # make clean - removes all files generated by make. # Please tweak the following variable definitions as needed by your # project, except GTEST_HEADERS, which you can use in your own targets # but shouldn't modify. # Points to the root of Google Test, relative to where this file is. # Remember to tweak this if you move this file. GTEST_DIR = .. # Where to find user code. USER_DIR = ../samples # Flags passed to the preprocessor. CPPFLAGS += -I$(GTEST_DIR)/include # Flags passed to the C++ compiler. CXXFLAGS += -g -Wall -Wextra # All tests produced by this Makefile. Remember to add new tests you # created to the list. TESTS = sample1_unittest # All Google Test headers. Usually you shouldn't change this # definition. GTEST_HEADERS = $(GTEST_DIR)/include/gtest/*.h \ $(GTEST_DIR)/include/gtest/internal/*.h # House-keeping build targets. all : $(TESTS) clean : rm -f $(TESTS) gtest.a gtest_main.a *.o # Builds gtest.a and gtest_main.a. # Usually you shouldn't tweak such internal variables, indicated by a # trailing _. GTEST_SRCS_ = $(GTEST_DIR)/src/*.cc $(GTEST_DIR)/src/*.h $(GTEST_HEADERS) # For simplicity and to avoid depending on Google Test's # implementation details, the dependencies specified below are # conservative and not optimized. This is fine as Google Test # compiles fast and for ordinary users its source rarely changes. gtest-all.o : $(GTEST_SRCS_) $(CXX) $(CPPFLAGS) -I$(GTEST_DIR) $(CXXFLAGS) -c \ $(GTEST_DIR)/src/gtest-all.cc gtest_main.o : $(GTEST_SRCS_) $(CXX) $(CPPFLAGS) -I$(GTEST_DIR) $(CXXFLAGS) -c \ $(GTEST_DIR)/src/gtest_main.cc gtest.a : gtest-all.o $(AR) $(ARFLAGS) $@ $^ gtest_main.a : gtest-all.o gtest_main.o $(AR) $(ARFLAGS) $@ $^ # Builds a sample test. A test should link with either gtest.a or # gtest_main.a, depending on whether it defines its own main() # function. sample1.o : $(USER_DIR)/sample1.cc $(USER_DIR)/sample1.h $(GTEST_HEADERS) $(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $(USER_DIR)/sample1.cc sample1_unittest.o : $(USER_DIR)/sample1_unittest.cc \ $(USER_DIR)/sample1.h $(GTEST_HEADERS) $(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $(USER_DIR)/sample1_unittest.cc sample1_unittest : sample1.o sample1_unittest.o gtest_main.a $(CXX) $(CPPFLAGS) $(CXXFLAGS) $^ -o $@ -lpthread #<----------------------- DIFF 

接下来请在这个目录下运行make :)并开心。