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Add warning for in-source-directory builds.

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ThorstenB 2012-07-17 19:19:17 +02:00
parent aad60afd64
commit f563bea192
1 changed files with 8 additions and 0 deletions
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8
CMakeLists.txt
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@ -18,6 +18,14 @@ else(${CMAKE_VERSION} VERSION_GREATER 2.8.4)
include(OldGNUInstallDirs)
endif(${CMAKE_VERSION} VERSION_GREATER 2.8.4)
# Warning when build is not an out-of-source build.
string(COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" InSourceBuild)
if(InSourceBuild)
message(WARNING "Avoid building inside the source tree!")
message(WARNING "Create a separate build directory instead (i.e. 'fgbuild') and call CMake from there: ")
message(WARNING " mkdir ../fgbuild && cd ../fgbuild && cmake ${CMAKE_SOURCE_DIR}")
endif(InSourceBuild)
set(CMAKE_DEBUG_POSTFIX "d" CACHE STRING "add a postfix, usually d on windows")
set(CMAKE_RELEASE_POSTFIX "" CACHE STRING "add a postfix, usually empty on windows")
set(CMAKE_RELWITHDEBINFO_POSTFIX "" CACHE STRING "add a postfix, usually empty on windows")