From ad1ef1b64590b72a3286046f8baa79ac055f9923 Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Fri, 9 Jan 2015 18:39:29 +0100
Subject: cmake: Added ENABLE_STATIC_LIBS option
- Allows building static libraries
- For users calling find_package(UHD), provides extra options
for building apps statically linking UHD.
- Updated the init_usrp example to link UHD statically.
---
host/examples/init_usrp/CMakeLists.txt | 32 ++++++++++++++++++++++++++++----
1 file changed, 28 insertions(+), 4 deletions(-)
(limited to 'host/examples/init_usrp')
diff --git a/host/examples/init_usrp/CMakeLists.txt b/host/examples/init_usrp/CMakeLists.txt
index 420e79993..3560dbd45 100644
--- a/host/examples/init_usrp/CMakeLists.txt
+++ b/host/examples/init_usrp/CMakeLists.txt
@@ -1,5 +1,5 @@
#
-# Copyright 2014 Ettus Research LLC
+# Copyright 2014-2015 Ettus Research LLC
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -18,6 +18,11 @@
cmake_minimum_required(VERSION 2.8)
### Set up build environment ##################################################
+# Choose a static or shared-library build (shared is default, and static will
+# probably need some special care!)
+# Set this to ON in order to link a static build of UHD:
+option(UHD_USE_STATIC_LIBS OFF)
+
# This example also requires Boost:
set(BOOST_REQUIRED_COMPONENTS
program_options
@@ -35,10 +40,10 @@ endif(MSVC)
find_package(Boost "1.46" REQUIRED ${BOOST_REQUIRED_COMPONENTS})
# To add UHD as a dependency to this project, add a line such as this:
-find_package(UHD "3.7.1" REQUIRED)
+find_package(UHD "3.8.0" REQUIRED)
# The version in ^^^^^ here is a minimum version.
# To specify an exact version:
-#find_package(UHD 3.7.1 EXACT REQUIRED)
+#find_package(UHD 3.8.1 EXACT REQUIRED)
### Configure Compiler ########################################################
include_directories(
@@ -49,7 +54,26 @@ link_directories(${Boost_LIBRARY_DIRS})
### Make the executable #######################################################
add_executable(init_usrp init_usrp.cpp)
-target_link_libraries(init_usrp ${UHD_LIBRARIES} ${Boost_LIBRARIES})
+# Shared library case: All we need to do is link against the library, and
+# anything else we need (in this case, some Boost libraries):
+if(NOT UHD_USE_STATIC_LIBS)
+ message(STATUS "Linking against shared UHD library.")
+ target_link_libraries(init_usrp ${UHD_LIBRARIES} ${Boost_LIBRARIES})
+# Shared library case: All we need to do is link against the library, and
+# anything else we need (in this case, some Boost libraries):
+else(NOT UHD_USE_STATIC_LIBS)
+ message(STATUS "Linking against static UHD library.")
+ target_link_libraries(init_usrp
+ # We could use ${UHD_LIBRARIES}, but linking requires some extra flags,
+ # so we use this convenience variable provided to us
+ ${UHD_STATIC_LIB_LINK_FLAG}
+ # Also, when linking statically, we need to pull in all the deps for
+ # UHD as well, because the dependencies don't get resolved automatically
+ ${UHD_STATIC_LIB_DEPS}
+ )
+endif(NOT UHD_USE_STATIC_LIBS)
+
+### Once it's built... ########################################################
# Here, you would have commands to install your program.
# We will skip these in this example.
--
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