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if (NOT $ENV{OPENCSGDIR} STREQUAL "")
set(OPENCSG_DIR "$ENV{OPENCSGDIR}")
elseif (NOT $ENV{OPENSCAD_LIBRARIES} STREQUAL "")
set(OPENCSG_DIR "$ENV{OPENSCAD_LIBRARIES}")
endif()
if (NOT OPENCSG_INCLUDE_DIR)
message(STATUS "OPENCSG_DIR: " ${OPENCSG_DIR})
find_path(OPENCSG_INCLUDE_DIR
opencsg.h
HINTS ${OPENCSG_DIR}/include)
find_library(OPENCSG_LIBRARY
opencsg
HINTS ${OPENCSG_DIR}/lib)
if (NOT OPENCSG_INCLUDE_DIR OR NOT OPENCSG_LIBRARY)
message(FATAL_ERROR "OpenCSG not found")
else()
set(OPENCSG_FOUND TRUE)
message(STATUS "OpenCSG include found in " ${OPENCSG_INCLUDE_DIR})
message(STATUS "OpenCSG library found in " ${OPENCSG_LIBRARY})
# version
set(_VERSION_FILE ${OPENCSG_INCLUDE_DIR}/opencsg.h)
if(EXISTS ${_VERSION_FILE})
file(STRINGS ${_VERSION_FILE} _VERSION_LINE REGEX "define[ ]+OPENCSG_VERSION_STRING" )
if(_VERSION_LINE)
string (REGEX REPLACE ".*define[ ]+OPENCSG_VERSION_STRING[ ]+\".*\ (.*)\".*" "\\1" OPENCSG_VERSION_STRING "${_VERSION_LINE}")
endif()
endif()
endif()
endif()
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