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cmake: disallow in-source builds

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This commit is contained in:
Alexander Alekhin
2017-04-15 06:55:46 +03:00
parent 572c86176a
commit 777a0080cb
1 changed files with 8 additions and 10 deletions
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CMakeLists.txt
+8 -10
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@@ -4,11 +4,16 @@
# From the off-tree build directory, invoke:
# $ cmake <PATH_TO_OPENCV_ROOT>
#
#
# - OCT-2008: Initial version <joseluisblancoc@gmail.com>
#
# ----------------------------------------------------------------------------
# Disable in-source builds to prevent source tree corruption.
if(" ${CMAKE_SOURCE_DIR}" STREQUAL " ${CMAKE_BINARY_DIR}")
message(FATAL_ERROR "
FATAL: In-source builds are not allowed.
You should create separate directory for build files.
")
endif()
set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
# Following block can broke build in case of cross-compilng
@@ -1094,13 +1099,6 @@ status("")
ocv_finalize_status()
# ----------------------------------------------------------------------------
# Warn in the case of in-source build
# ----------------------------------------------------------------------------
if("${CMAKE_CURRENT_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_BINARY_DIR}")
message(WARNING "The source directory is the same as binary directory. \"make clean\" may damage the source tree")
endif()
# ----------------------------------------------------------------------------
# CPack stuff
# ----------------------------------------------------------------------------