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POWhat would cause VS2010 to fail to include from header files, but not from implementation files?
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  1. POWhat would cause VS2010 to fail to include from header files, but not from implementation files?
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    copied!<p>I have a VS2010 project that's being generated by CMake, using the SFML library. The project is set up like so, with <em>lib/SFML-2.0-rc/include</em> added to the include directories:</p> <pre><code>/lib + /SFML-2.0-rc + /include + /SFML + Graphics.hpp + /lib /project + /src + /engine + /assets + CMakeLists.txt + asset.hpp + CMakeLists.txt + engine.hpp + engine.cpp + CMakeLists.txt + main.cpp + CMakeLists.txt </code></pre> <p>I am trying to use <code>#include &lt;SFML/Graphics.hpp&gt;</code> from <em>assets.hpp</em>, but I get the following error:</p> <pre><code>fatal error C1083: Cannot open include file: 'SFML/Graphics.hpp': No such file or directory </code></pre> <p>I also get that error when trying to include from <em>engine.hpp</em>. However, in <em>engine.cpp</em> I was already using that include line, and I could build and run the project successfully.</p> <p>Visual Studio is able to auto-complete the SFML include paths, and in <em>Configuration Properties > C/C++ > Additional Include Directories</em> I can see all of the libraries are configured.</p> <p>So my question is this: <strong>what could cause this error to only happen when including from a header file?</strong></p> <h1>CMakeLists files</h1> <p>These are the CMake build files that generated the VS2010 solution.</p> <h3>project/CMakeLists.txt</h3> <pre><code>cmake_minimum_required (VERSION 2.8) project (project) set (project_SOURCE "" ) include_directories("src") add_subdirectory (src) add_executable (project ${project_SOURCE}) target_link_libraries (project Engine) </code></pre> <h3>project/src/CMakeLists.txt</h3> <pre><code>set (project_SOURCE ${project_SOURCE} "${CMAKE_CURRENT_SOURCE_DIR}/main.cpp" PARENT_SCOPE ) include_directories ("engine") add_subdirectory (engine) </code></pre> <h3>project/src/engine/CMakeLists.txt</h3> <pre><code>set (HEADERS "${CMAKE_CURRENT_SOURCE_DIR}/engine.hpp" ) set (SOURCE "${CMAKE_CURRENT_SOURCE_DIR}/engine.cpp" ) include_directories("assets") add_subdirectory(assets) add_library(Engine ${SOURCE} ${HEADERS} ) set (LIBS_ROOT "" CACHE PATH "Root directory of external libs") set (LIBS_SFML_FOLDER "SFML-2.0-rc" CACHE STRING "Name of the SFML external folder") set (SFMLDIR "${LIBS_ROOT}/${LIBS_SFML_FOLDER}") ## SFML if (NOT SFMLDIR) message (FATAL_ERROR "SFML directory hasn't been specified") endif() set (CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${SFMLDIR}/cmake/Modules") set (SFML_STATIC_LIBRARIES TRUE) set (SFML_COMPONENTS system window graphics network audio main) find_package (SFML 2 COMPONENTS ${SFML_COMPONENTS} REQUIRED) if (SFML_FOUND) include_directories(${SFML_INCLUDE_DIR}) target_link_libraries (Engine ${SFML_LIBRARIES}) endif () </code></pre> <h3>project/src/engine/assets/CMakeLists.txt</h3> <pre><code>set (HEADERS ${HEADERS} "${CMAKE_CURRENT_SOURCE_DIR}/asset.hpp" PARENT_SCOPE ) </code></pre>
 

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