cmake: add cmake toolchain file for oe setup

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>

diff --git a/cmake/Toolchains/oe-sdk_cross.cmake b/cmake/Toolchains/oe-sdk_cross.cmake
new file mode 100644 (file)
index 0000000..307f07b
--- /dev/null
+++ b/cmake/Toolchains/oe-sdk_cross.cmake
@@ -0,0 +1,18 @@
+# this toolchain file comes from gnuradio project
+
+set( CMAKE_SYSTEM_NAME Linux )
+#set( CMAKE_C_COMPILER  $ENV{CC} )
+#set( CMAKE_CXX_COMPILER  $ENV{CXX} )
+string(REGEX MATCH "sysroots/([a-zA-Z0-9]+)" CMAKE_SYSTEM_PROCESSOR $ENV{SDKTARGETSYSROOT})
+string(REGEX REPLACE "sysroots/" "" CMAKE_SYSTEM_PROCESSOR ${CMAKE_SYSTEM_PROCESSOR})
+set( CMAKE_CXX_FLAGS $ENV{CXXFLAGS}  CACHE STRING "" FORCE )
+set( CMAKE_C_FLAGS $ENV{CFLAGS} CACHE STRING "" FORCE ) #same flags for C sources
+set( CMAKE_LDFLAGS_FLAGS ${CMAKE_CXX_FLAGS} CACHE STRING "" FORCE ) #same flags for C sources
+set( CMAKE_LIBRARY_PATH ${OECORE_TARGET_SYSROOT}/usr/lib )
+set( CMAKE_FIND_ROOT_PATH $ENV{OECORE_TARGET_SYSROOT} $ENV{OECORE_NATIVE_SYSROOT} )
+set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
+set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
+set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
+set ( ORC_INCLUDE_DIRS $ENV{OECORE_TARGET_SYSROOT}/usr/include/orc-0.4 )
+set ( ORC_LIBRARY_DIRS $ENV{OECORE_TARGET_SYSROOT}/usr/lib )
+

diff --git a/docs/building.md b/docs/building.md
index f8f59bf..f6812cc 100644 (file)
--- a/docs/building.md
+++ b/docs/building.md
@@ -38,6 +38,20 @@ Disabling python module building
 Building doc, this will require sphinx & doxygen
  -BUILDDOC=ON
 
+Using a yocto/oe toolchain
+--------------------------
+
+In order to compile with a yocto/oe toolchain use the following toolchain file.
+This works well on the edison 1.6 SDK. First source the environment file, then
+use our cmake toolchain file.
+
+~~~~~~~~~~~~~{.sh}
+source /opt/poky-edison/1.6/environment-setup-core2-32-poky-linux
+mkdir build
+cmake -DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchains/oe-sdk_cross.cmake ..
+make
+~~~~~~~~~~~~~
+
 Using coverity
 --------------