From fdd80e548dcda3e4ee0c022d7d04b5ba581c5ad9 Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Fri, 9 Apr 2010 08:13:19 -0700
Subject: added python+cheetah build requirement, generating vrt.cpp

---
 host/lib/CMakeLists.txt | 46 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

(limited to 'host/lib/CMakeLists.txt')

diff --git a/host/lib/CMakeLists.txt b/host/lib/CMakeLists.txt
index f21a4a491..87e35f412 100644
--- a/host/lib/CMakeLists.txt
+++ b/host/lib/CMakeLists.txt
@@ -15,6 +15,33 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+
+########################################################################
+# Setup Python
+########################################################################
+INCLUDE(FindPythonInterp)
+
+MACRO(PYTHON_CHECK_MODULE module have)
+    MESSAGE(STATUS "Checking for python module ${module}")
+    EXECUTE_PROCESS(
+        COMMAND ${PYTHON_EXECUTABLE} -c "import ${module}"
+        RESULT_VARIABLE ${have}
+    )
+    IF(${have} EQUAL 0)
+        MESSAGE(STATUS "Checking for python module ${module} - found")
+        SET(${have} TRUE)
+    ELSE(${have} EQUAL 0)
+        MESSAGE(STATUS "Checking for python module ${module} - not found")
+        SET(${have} FALSE)
+    ENDIF(${have} EQUAL 0)
+ENDMACRO(PYTHON_CHECK_MODULE)
+
+PYTHON_CHECK_MODULE("Cheetah" HAVE_PYTHON_MODULE_CHEETAH)
+
+IF(NOT HAVE_PYTHON_MODULE_CHEETAH)
+    MESSAGE(FATAL_ERROR "Error: Cheetah Templates needed for pre-build generation.")
+ENDIF(NOT HAVE_PYTHON_MODULE_CHEETAH)
+
 ########################################################################
 # Create a list of libuhd sources
 ########################################################################
@@ -26,7 +53,6 @@ SET(libuhd_sources
     wax.cpp
     transport/if_addrs.cpp
     transport/udp_simple.cpp
-    transport/vrt.cpp
     usrp/dboard/db_basic_and_lf.cpp
     usrp/dboard/db_rfx.cpp
     usrp/dboard_base.cpp
@@ -41,6 +67,24 @@ SET(libuhd_sources
     usrp/usrp2/usrp2_impl.cpp
 )
 
+########################################################################
+# Generate Files
+########################################################################
+MACRO(UHD_PYTHON_GEN_FILE pyfile outfile)
+    ADD_CUSTOM_COMMAND(
+        OUTPUT ${outfile} DEPENDS ${pyfile}
+        COMMAND ${PYTHON_EXECUTABLE} ${pyfile} ${outfile}
+        COMMENT "Calling ${pyfile} to generate ${outfile}"
+    )
+ENDMACRO(UHD_PYTHON_GEN_FILE)
+UHD_PYTHON_GEN_FILE(
+    ${CMAKE_CURRENT_SOURCE_DIR}/transport/gen_vrt.py
+    ${CMAKE_CURRENT_BINARY_DIR}/transport/vrt.cpp
+)
+LIST(APPEND libuhd_sources
+    ${CMAKE_CURRENT_BINARY_DIR}/transport/vrt.cpp
+)
+
 ########################################################################
 # Conditionally add the udp sources
 ########################################################################
-- 
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