From dfb68de42cdb60f8c3c7d9dfb4728db8de49a2c9 Mon Sep 17 00:00:00 2001
From: ayberkozgur <ayberk.ozgur@epfl.ch>
Date: Tue, 25 Nov 2014 10:32:05 +0100
Subject: [PATCH] Platform specific pthread inclusion

---
 CMakeLists.txt     | 6 +++++-
 src/CMakeLists.txt | 2 +-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8deba8f..c1b205e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,13 +36,13 @@ message(STATUS "OpenCV version: ${OpenCV_VERSION}")
 ##           Options                   ###
 ##########################################
 
-option(WITH_PTHREADS                    "Multithreading support with pthreads" ON)
 option(WITH_SAMPLES                     "Build demos" OFF)
 option(WITH_TESTS                       "Build tests" OFF)
 option(WITH_JNI_BINDINGS                "Build JNI bindings compatible with ordinary Java and Android" OFF)
 option(ANDROID_INSTALL_LIBRARIES        "Install the chilitag libraries inside project at ANDROID_PROJECT_ROOT" OFF)
 
 if(DEFINED ANDROID) #OPENCV has a nice macro for this: OCV_OPTION, consider using it.
+    option(WITH_PTHREADS                "Multithreading support with pthreads" ON)
     option(WITH_TOOLS                   "provides the marker generation tool" OFF)
 
     #Set Android install path
@@ -61,7 +61,11 @@ if(DEFINED ANDROID) #OPENCV has a nice macro for this: OCV_OPTION, consider usin
     if(NOT DEFINED ENV{ANDROID_TOOLCHAIN_NAME})
         message(FATAL_ERROR "Please define the ANDROID_TOOLCHAIN_NAME environment variable first, e.g arm-linux-androideabi-4.8")
     endif()
+elseif(UNIX)
+    option(WITH_PTHREADS                "Multithreading support with pthreads" ON)
+    option(WITH_TOOLS                   "provides the marker generation tool" ON)
 else()
+    option(WITH_PTHREADS                "Multithreading support with pthreads" OFF)
     option(WITH_TOOLS                   "provides the marker generation tool" ON)
 endif()
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a683943..9a81a73 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -34,7 +34,7 @@ add_library(
 target_link_libraries(chilitags ${OpenCV_LIBS})
 target_link_libraries(chilitags_static ${OpenCV_LIBS})
 
-if(WITH_PTHREADS)
+if(WITH_PTHREADS AND NOT DEFINED ANDROID) #Android pthreads don't require -lpthread
     target_link_libraries(chilitags pthread)
     target_link_libraries(chilitags_static pthread)
 endif()