Commit 5a8f155e authored by Emmanuel Christophe's avatar Emmanuel Christophe

ENH: prevent in-source build (following discussion on the ITK dev list)

parent 565b6598
#
# This function will prevent in-source builds
function(AssureOutOfSourceBuilds)
# make sure the user doesn't play dirty with symlinks
get_filename_component(srcdir "${CMAKE_SOURCE_DIR}" REALPATH)
get_filename_component(bindir "${CMAKE_BINARY_DIR}" REALPATH)
# disallow in-source builds
if("${srcdir}" STREQUAL "${bindir}")
message("######################################################")
message("# OTB should not be configured & built in the OTB source directory")
message("# You must run cmake in a build directory.")
message("# For example:")
message("# mkdir OTB-Sandbox ; cd OTB-Sandbox")
message("# hg clone http://hg.orfeo-toolbox.org/OTB # or download & unpack the source tarball")
message("# mkdir OTB-Binary ")
message("# this will create the following directory structure ")
message("# ")
message("# OTB-Sandbox")
message("# +--OTB ")
message("# +--OTB-Binary ")
message("# ")
message("# Then you can proceed to configure and build ")
message("# by using the following commands ")
message("# ")
message("# cd OTB-Binary")
message("# ccmake ../OTB")
message("# make ")
message("# ")
message("# NOTE: Given that you already tried to make an in-source build")
message("# CMake have already created several files & directories")
message("# in your source tree. run 'hg status' to find them and")
message("# remove them by doing:")
message("# ")
message("# cd OTB-Sandbox/OTB")
message("# hg purge ")
message("# ")
message("######################################################")
message(FATAL_ERROR "Quitting configuration")
endif()
endfunction()
AssureOutOfSourceBuilds()
......@@ -6,6 +6,11 @@ IF(COMMAND CMAKE_POLICY)
CMAKE_POLICY(SET CMP0003 NEW)
ENDIF(COMMAND CMAKE_POLICY)
#-----------------------------------------------------------------------------
# Sanity check -- prevent in-source builds
#
INCLUDE(${CMAKE_CURRENT_SOURCE_DIR}/CMake/PreventInSourceBuilds.cmake)
PROJECT(OTB)
# Path to additional CMake modules
......
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