From 65f112f51566019102c5eb60f92bd394cd9c8da7 Mon Sep 17 00:00:00 2001
From: Thomas Feuvrier <thomas.feuvrier@c-s.fr>
Date: Mon, 21 Sep 2009 18:05:37 +0200
Subject: [PATCH] ENH: Add TRY_COMPILE when External Boost library is selected.
If the compilation aborted, then the internal boost library is used, and
OTB_USE_EXTERNAL_BOOST cmake value is force to OFF.
---
CMake/otbTestCompileBoost.cxx | 8 ++++++++
CMakeLists.txt | 14 ++++++++++++++
2 files changed, 22 insertions(+)
create mode 100644 CMake/otbTestCompileBoost.cxx
diff --git a/CMake/otbTestCompileBoost.cxx b/CMake/otbTestCompileBoost.cxx
new file mode 100644
index 0000000000..2cdb84ce5a
--- /dev/null
+++ b/CMake/otbTestCompileBoost.cxx
@@ -0,0 +1,8 @@
+#include <boost/graph/graph_traits.hpp>
+#include <boost/graph/adjacency_list.hpp>
+
+int
+main(int argc, char *argv[])
+{
+ return 1;
+}
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4736606b1d..9e746039fd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -435,6 +435,20 @@ ENDIF(OTB_USE_MAPNIK)
IF(OTB_USE_EXTERNAL_BOOST)
FIND_PACKAGE(Boost)
+
+ TRY_COMPILE(BOOST_IS_COMPLETE
+ ${CMAKE_CURRENT_BINARY_DIR}/CMake
+ ${CMAKE_CURRENT_SOURCE_DIR}/CMake/otbTestCompileBoost.cxx
+ CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:PATH=${Boost_INCLUDE_DIR}"
+ OUTPUT_VARIABLE OUTPUT)
+ IF(BOOST_IS_COMPLETE)
+ MESSAGE(STATUS "Testing external Boost library -- yes")
+ ELSE(BOOST_IS_COMPLETE)
+ MESSAGE(STATUS "Testing external Boost library -- no")
+ MESSAGE(STATUS "Force the OTB_USE_EXTERNAL_BOOST value to OFF.")
+ SET(OTB_USE_EXTERNAL_BOOST OFF)
+ ENDIF(BOOST_IS_COMPLETE)
+
INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIR})
ENDIF(OTB_USE_EXTERNAL_BOOST)
--
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