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#.rst:
# FindQhull
# ---------
#
# Find the Qhull library.
#
# Imported targets
# ^^^^^^^^^^^^^^^^
#
# This module defines the following :prop_tgt:`IMPORTED` target:
#
# ``Qhull::Qhull``
# The Qhull library, if found.
#
# Result variables
# ^^^^^^^^^^^^^^^^
#
# This module will set the following variables in your project:
#
# ``QHULL_INCLUDE_DIRS``
# where to find qhull_a.h, etc.
# ``QHULL_LIBRARIES``
# the libraries to link against to use Qhull.
# ``Qhull_FOUND``
# If false, do not try to use Qhull.
if(NOT QHULL_INCLUDE_DIR)
find_path(QHULL_INCLUDE_DIR libqhull_r/qhull_ra.h)
endif()
if(NOT QHULL_LIBRARY)
find_library(
QHULL_LIBRARY NAMES ${GR_THIRDPARTY_LIBRARY_PREFIX}qhull_r${GR_THIRDPARTY_LIBRARY_SUFFIX} qhullstatic_r qhull_r
)
endif()
if(NOT QHULL_VERSION_STRING
AND QHULL_INCLUDE_DIR
AND QHULL_LIBRARY
)
if(CMAKE_CROSSCOMPILING)
# Qhull version cannot be queried when cross compiling
set(QHULL_VERSION_STRING "Unknown")
else()
file(
WRITE "${CMAKE_CURRENT_BINARY_DIR}/qhull_get_version.c"
"
#include \"libqhull_r/libqhull_r.h\"
int main(void)
{
printf(\"%s\", qh_version2);
return 0;
}
"
)
try_compile(
COMPILE_SUCCESS "${CMAKE_CURRENT_BINARY_DIR}/qhull_get_version" "${CMAKE_CURRENT_BINARY_DIR}/qhull_get_version.c"
LINK_LIBRARIES ${QHULL_LIBRARY} m
COPY_FILE "${CMAKE_CURRENT_BINARY_DIR}/qhull_get_version/exe"
CMAKE_FLAGS "-DINCLUDE_DIRECTORIES=${QHULL_INCLUDE_DIR}"
)
if(COMPILE_SUCCESS)
execute_process(COMMAND "${CMAKE_CURRENT_BINARY_DIR}/qhull_get_version/exe" OUTPUT_VARIABLE QHULL_H_TEXT)
string(REGEX REPLACE "[ \tA-Za-z]*([0-9]+.[0-9]+.[0-9]+).*" "\\1" QHULL_VERSION_STRING ${QHULL_H_TEXT})
else()
set(QHULL_VERSION_STRING "Unknown")
endif()
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(
Qhull
VERSION_VAR
QHULL_VERSION_STRING
REQUIRED_VARS
QHULL_LIBRARY
QHULL_INCLUDE_DIR
QHULL_VERSION_STRING
)
if(Qhull_FOUND)
set(QHULL_INCLUDE_DIRS ${QHULL_INCLUDE_DIR})
set(QHULL_LIBRARIES ${QHULL_LIBRARY})
if(NOT TARGET Qhull::qhull_r)
add_library(Qhull::qhull_r UNKNOWN IMPORTED)
set_target_properties(
Qhull::qhull_r
PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${QHULL_INCLUDE_DIRS}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LOCATION "${QHULL_LIBRARY}"
)
endif()
elseif(${CMAKE_FIND_PACKAGE_NAME}_FIND_REQUIRED)
message(FATAL_ERROR "${CMAKE_FIND_PACKAGE_NAME} was required but could not be found.")
endif()
mark_as_advanced(QHULL_INCLUDE_DIR QHULL_LIBRARY)
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