[arrayfire] 104/284: cmake fix to check for threads submodule

[Ghislain Vaillant]

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ghisvail-guest pushed a commit to branch debian/experimental
in repository arrayfire.

commit a0f17b6ba7adedf0f7ee1093bf8217661fe77679
Author: pradeep <pradeep at arrayfire.com>
Date:   Mon Dec 28 16:29:49 2015 -0500

    cmake fix to check for threads submodule
---
 src/backend/cpu/CMakeLists.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/backend/cpu/CMakeLists.txt b/src/backend/cpu/CMakeLists.txt
index 62f0b3a..c2b4e97 100644
--- a/src/backend/cpu/CMakeLists.txt
+++ b/src/backend/cpu/CMakeLists.txt
@@ -47,6 +47,18 @@ IF(NOT UNIX)
     ADD_DEFINITIONS(-DAFDLL)
 ENDIF()
 
+SET(THREADS_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/threads")
+IF(EXISTS "${THREADS_SRC_DIR}" AND IS_DIRECTORY "${THREADS_SRC_DIR}")
+    # threads submodule has been initialized
+    # Nothing to do
+ELSE(EXISTS "${THREADS_SRC_DIR}" AND IS_DIRECTORY "${THREADS_SRC_DIR}")
+    MESSAGE(STATUS "threads submodule unavailable. Updating submodules.")
+    EXECUTE_PROCESS(
+        COMMAND git submodule update --init --recursive
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        )
+ENDIF(EXISTS "${THREADS_SRC_DIR}" AND IS_DIRECTORY "${THREADS_SRC_DIR}")
+
 INCLUDE_DIRECTORIES(
     ${CMAKE_INCLUDE_PATH}
     "${CMAKE_SOURCE_DIR}/src/backend/cpu"

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