Updated CMake files -- added libunbound linker flag

CMake config file written, but was unable to test/get it working
properly because of a bug in CMake with functions related to
find_package.  Simple "-lunbound" flag used in its stead for now.  May
not build on non-Linux systems, not sure yet.

2 files changed, 60 insertions, 0 deletions

diff --git a/CMake/FindUnbound.cmake b/CMake/FindUnbound.cmake
new file mode 100644
index 000000000..3d2e8f6d7
--- /dev/null
+++ b/CMake/FindUnbound.cmake
@@ -0,0 +1,55 @@
+# Copyright (c) 2014, The Monero Project
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without modification, are
+# permitted provided that the following conditions are met:
+# 
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+# 
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other
+#    materials provided with the distribution.
+# 
+# 3. Neither the name of the copyright holder nor the names of its contributors may be
+#    used to endorse or promote products derived from this software without specific
+#    prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+include (CheckIncludeFiles)
+include (CheckLibraryExists)
+include (CheckSymbolExists)
+
+set (Unbound_FOUND FALSE)
+MESSAGE("Attempting to find libunbound")
+
+#FIND_PATH("unbound.h" CMAKE_HAVE_UNBOUND_H)
+MESSAGE("CMAKE_INCLUDE_PATH: ${CMAKE_INCLUDE_PATH}")
+MESSAGE("CMAKE_SYSTEM_INCLUDE_PATH: ${CMAKE_SYSTEM_INCLUDE_PATH}")
+CHECK_INCLUDE_FILES("unbound.h" CMAKE_HAVE_UNBOUND_H)
+MESSAGE("CMAKE_HAVE_UNBOUND_H: ${CMAKE_HAVE_UNBOUND_H}")
+
+if(CMAKE_HAVE_UNBOUND_H)
+
+  MESSAGE("unbound.h found")
+
+  CHECK_LIBRARY_EXISTS(unbound ub_ctx_create "" CMAKE_HAVE_UNBOUND)
+
+  if(CMAKE_HAVE_UNBOUND)
+    MESSAGE("-lunbound works?")
+    set(CMAKE_UNBOUND_LIB "-lunbound")
+    set(Unbound_FOUND TRUE)
+  endif()
+endif()
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(Unbound DEFAULT_MSG Unbound_FOUND)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 875674733..6a2c66bc8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -197,6 +197,11 @@ else()
   add_custom_target(version ALL)
 endif()
 
+# <expletive deleted> CMake bug making this not work.
+#find_package(Unbound REQUIRED)
+# Won't make sure this works, because that's broken.
+set(CMAKE_UNBOUND_LIB "-lunbound")
+
 add_subdirectory(external)
 
 # Final setup for miniupnpc