Issues with pthreads on compiling
Opened this issue · 4 comments
GoogleCodeExporter commented
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asked for below.
What steps will reproduce the problem?
1.Download the gtest-1.6.0
2.cd to the make directory
3.run the `sample1_unittest`
What is the expected output? What do you see instead?
Normally, the build is suppose to go on without any errors. Instead, a list of
missing references relating to pthreads are output.
What version of Google Test are you using? On what operating system?
Google test 1.6.0, GCC 4.6.1, Ubuntu 10.10 Oneiric Ocelot.
Please provide any additional information below, such as a code snippet.
It seems that in ubuntu 10.10, at the last stage of linking the gtest library
and test source file, -pthread should be used instead of -lpthread.
Original issue reported on code.google.com by Briandkid on 21 Nov 2011 at 2:24
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GoogleCodeExporter commented
this is due to the linker flag ld --as-needed being default in ubuntu.
the -lpthread must be placed after all objects needing its symbols or -pthread
should be used.
Original comment by jtaylor....@googlemail.com on 2 May 2012 at 5:48
GoogleCodeExporter commented
http://gcc.gnu.org/onlinedocs/gcc/Link-Options.html
It makes a difference where in the command you write this option; the linker
searches and processes libraries and object files in the order they are
specified
so we need to put -lpthread followed by objects or source file
I attached this patch
Original comment by Lynn.Xin...@gmail.com on 27 Sep 2012 at 6:37
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GoogleCodeExporter commented
Quite a number of people are running into this issue. I did not have any
problems under OSX 10.8.2 (perhaps because gcc are soft links to lvm), but as
soon as I moved my code to Ubuntu 12.04 I ran into this issue.
Easy fix, but quite a hassle.
See http://stackoverflow.com/questions/10315016/error-during-making-gtest
Original comment by r...@burhum.com on 9 Dec 2012 at 7:26
GoogleCodeExporter commented
Some fix steps:
What steps will reproduce the problem?
1.Download the gtest-1.6.0
2.cd make/
3.make
4.PROFIT!...
Today i`m first try google test for C++ and have spend over hours to install
it. Its quite wobbly to find a very OLD bug. And fix it.
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -lpthread $^ -o $@
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -pthread $^ -o $@
-pthread should be used instead of -lpthread
Thanks for all users who have found this bug over two years ago!
Original comment by kiril.sa...@gmail.com on 29 Jul 2013 at 11:50