I have attached a patch to add imported targets to FindBoost, in the form
of Boost::<component> (e.g. Boost::date_time) or Boost::Boost as a generic
interface library for header-only components.
If this type of patch is acceptable, I would like to do this for a number
of other modules for which I would like to be able to use so I export
generic configurations for my own libraries, including XercesC, PNG, TIFF
and a few others. If that's OK, I'll follow up with patches for these
modules.
Regards,
Roger Leigh
>From 2fd86f82b12569c990dd2befbfb82d3d8103d374 Mon Sep 17 00:00:00 2001
From: Roger Leigh <rle...@dundee.ac.uk>
Date: Mon, 16 Nov 2015 13:21:33 +0000
Subject: [PATCH] FindBoost: Add imported targets
---
Modules/FindBoost.cmake | 58 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 58 insertions(+)
diff --git a/Modules/FindBoost.cmake b/Modules/FindBoost.cmake
index 33e6a49..b5f5e22 100644
--- a/Modules/FindBoost.cmake
+++ b/Modules/FindBoost.cmake
@@ -34,6 +34,11 @@
# information about Boost's automatic linking
# displayed during compilation
#
+# The following :prop_tgt:`IMPORTED` targets are also defined::
+#
+# Boost::Boost - Target for header-only dependencies
+# Boost::<C> - Library target for specific component dependency
+#
# This module reads hints about search locations from variables::
#
# BOOST_ROOT - Preferred installation prefix
@@ -142,6 +147,14 @@
# add_executable(foo foo.cc)
# endif()
#
+# Example to find Boost libraries and use imported targets::
+#
+# find_package(Boost 1.56 REQUIRED COMPONENTS
+# date_time filesystem system iostreams)
+# add_executable(foo foo.cc)
+# target_link_libraries(foo Boost::date_time Boost::filesystem
+# Boost::system Boost::iostreams)
+#
# Example to find Boost headers and some *static* libraries::
#
# set(Boost_USE_STATIC_LIBS ON) # only find static libs
@@ -1222,6 +1235,51 @@ else()
endif()
# ------------------------------------------------------------------------
+# Add imported targets
+# ------------------------------------------------------------------------
+
+if(Boost_FOUND)
+ # For header-only libraries
+ if(NOT TARGET Boost::Boost)
+ add_library(Boost::Boost INTERFACE IMPORTED)
+ if(Boost_INCLUDE_DIRS)
+ set_target_properties(Boost::Boost PROPERTIES
+ INTERFACE_INCLUDE_DIRECTORIES "${Boost_INCLUDE_DIRS}")
+ endif()
+ endif()
+
+ foreach(COMPONENT ${Boost_FIND_COMPONENTS})
+ string(TOUPPER ${COMPONENT} UPPERCOMPONENT)
+ if(Boost_${UPPERCOMPONENT}_FOUND)
+ add_library(Boost::${COMPONENT} UNKNOWN IMPORTED)
+ if(Boost_INCLUDE_DIRS)
+ set_target_properties(Boost PROPERTIES
+ INTERFACE_INCLUDE_DIRECTORIES "${Boost_INCLUDE_DIRS}")
+ endif()
+ if(EXISTS "${Boost_${UPPERCOMPONENT}_LIBRARY}")
+ set_target_properties(Boost::${COMPONENT} PROPERTIES
+ IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
+ IMPORTED_LOCATION "${Boost_${UPPERCOMPONENT}_LIBRARY}")
+ endif()
+ if(EXISTS "${Boost_${UPPERCOMPONENT}_LIBRARY_DEBUG}")
+ set_property(TARGET Boost::${COMPONENT} APPEND PROPERTY
+ IMPORTED_CONFIGURATIONS DEBUG)
+ set_target_properties(Boost::${COMPONENT} PROPERTIES
+ IMPORTED_LINK_INTERFACE_LANGUAGES_DEBUG "CXX"
+ IMPORTED_LOCATION_DEBUG "${Boost_${UPPERCOMPONENT}_LIBRARY_DEBUG}")
+ endif()
+ if(EXISTS "${Boost_${UPPERCOMPONENT}_LIBRARY_RELEASE}")
+ set_property(TARGET Boost::${COMPONENT} APPEND PROPERTY
+ IMPORTED_CONFIGURATIONS RELEASE)
+ set_target_properties(Boost::${COMPONENT} PROPERTIES
+ IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "CXX"
+ IMPORTED_LOCATION_RELEASE "${Boost_${UPPERCOMPONENT}_LIBRARY_RELEASE}")
+ endif()
+ endif()
+ endforeach()
+endif()
+
+# ------------------------------------------------------------------------
# Notification to end user about what was found
# ------------------------------------------------------------------------
--
2.1.4
--
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