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CMake: auto-enable CGAL_DEV_MODE when building from CGAL source tree #9472

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CMake: auto-enable CGAL_DEV_MODE when building from CGAL source tree #9472

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23 changes: 23 additions & 0 deletions Installation/lib/cmake/CGAL/CGALConfig.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,29 @@ endfunction()

set(CGAL_FOUND FALSE)
cgal_detect_branch_build(BRANCH_BUILD)
# Fix for issue #9441:
# When building CGAL from its own source tree (branch build),
# CGAL_DEV_MODE should default to ON so developers automatically
# get internal warnings and proper include path behavior.
# Users can override with -DCGAL_DEV_MODE=OFF.
if(BRANCH_BUILD)
set(_cgal_dev_mode_default ON)
elseif(DEFINED ENV{CGAL_DEV_MODE})
set(_cgal_dev_mode_default "$ENV{CGAL_DEV_MODE}")
else()
set(_cgal_dev_mode_default OFF)
endif()

option(CGAL_DEV_MODE
"Enable CGAL developer mode (auto-ON when building from CGAL source tree)"
"${_cgal_dev_mode_default}")

if(CGAL_DEV_MODE AND _cgal_dev_mode_default)
message(WARNING
"CGAL_DEV_MODE is ON because you are building from the CGAL source "
"tree. To disable it, pass -DCGAL_DEV_MODE=OFF to CMake or unset "
"the CGAL_DEV_MODE environment variable.")
endif()
if(BRANCH_BUILD)
set(CGAL_ROOT ${CGAL_CONFIG_DIR})
get_filename_component(CGAL_ROOT "${CGAL_ROOT}" DIRECTORY)
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