Windows7 pthread.h not found - c++

Question

I am trying to compile libaws (http://sourceforge.net/projects/libaws/) library in Windows using cmake. I have included openssl, libxml, libcurl and I am using this command line.
C:\libaws>cmake -G "Visual Studio 10" -DCURL_LIBRARY="C:\tools\curl-7.28.1\lib" -DCURL_INCLUDE_DIR="C:\tools\curl-7.28.1\include" -DLIBXML2_LIBRARIES="C:\tools\libxml22.7.8.win32\lib" -DLIBXML2_INCLUDE_DIR="C:\tools\libxml2-2.7.8.win32\include" -DPTHREAD_INCLUDE_DIR="C:\tools\pthread\include" ..\tools\libaws-0.9.2
--
It throws the following error:
-- Check for working C compiler using: Visual Studio 10
-- Check for working C compiler using: Visual Studio 10 -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler using: Visual Studio 10
-- Check for working CXX compiler using: Visual Studio 10 -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Found CURL: C:/tools/curl-7.28.1/lib (found version "7.28.1")
-- Found OpenSSL: optimized;C:/openssl/lib/ssleay32.lib;debug;C:/openssl/lib/ssleay32.lib;optimized;C:/openssl/lib/libeay32.lib;debug;C:/openssl/lib/libeay32.lib (found version "1.0.1c")
-- Found LibXml2: C:/tools/libxml2-2.7.8.win32/lib (found version "2.7.8")
-- Looking for include file pthread.h
-- Looking for include file pthread.h - not found.
CMake Error at CMakeLists.txt:78 (MESSAGE):
Could not find pthread development headers
I have included ptherad.h, semaphore.h etc. in C:\tools\pthread\include, and provided that as a command line flag: -DPTHREAD_INCLUDE_DIR="C:\tools\pthread\include". In my CMakeLists.txt, I added
INCLUDE_DIRECTORIES(${PTHREAD_INCLUDE_DIR})
Any ideas?

Answer 1

Visual Studio doesn't come with a "pthread" implementation. I guess you'll need to use another compiler, like MinGW.
#jens-a-koch is right: my answer should not be accepted! Please "unaccept" so I can remove it.
I belive that your CMake find module might not be using the PTHREAD_INCLUDE_DIR define (similarly to what# drescherjm said).

Answer 2

I had the same error and the solution in short was to install Git for windows!
-- Looking for pthread.h
-- Looking for pthread.h - not found
-- Found Threads: TRUE
and in CMakeError
checkIncludeFile.c(1,1): fatal error C1083: Cannot open include file: 'pthread.h': No such file or directory
CheckIncludeFile.c(1,1): fatal error C1083: #include <pthread.h>
I already have github app and I used it to clone my project, but for some reason CMake needed Git for windows, so if anyone had this issue this is what worked for me after hours of search