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# cmake/modules/csiro.cmake
#
# Copyright (C) 2006-2018 Alan W. Irwin
#
# This file is part of PLplot.
#
# PLplot is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library General Public License as published
# by the Free Software Foundation; version 2 of the License.
#
# PLplot is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public License
# along with the file PLplot; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Module for determining all configuration variables for the CSIRO libraries.
option(PL_HAVE_QHULL "Enable use of the Qhull library" ON)
option(WITH_CSA "Enable use of the csa library" ON)
# This logic copied verbatim from csiro.ac for ix86 systems and alpha systems
# with two possible compilers. In future, this logic will need to be
# expanded to a lot more cases as we gain platform experience.
set(NAN_CFLAGS ${CMAKE_C_FLAGS})
if(PL_HAVE_QHULL OR WITH_CSA)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "alpha.*")
set(NAN_CFLAGS "${NAN_CFLAGS} -mieee")
endif(CMAKE_SYSTEM_PROCESSOR MATCHES "alpha.*")
if(NOT DEFINED NaNAwareCCompiler)
message(STATUS "Check for NaN awareness in C compiler")
try_run(RUN_RESULT COMPILE_RESULT
${CMAKE_BINARY_DIR}
${CMAKE_SOURCE_DIR}/cmake/modules/TestNaNAware.c
CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${NAN_CFLAGS} -I\"${CMAKE_SOURCE_DIR}\"/lib/csa ${MATH_LIB}"
OUTPUT_VARIABLE OUTPUT
)
#message(STATUS "COMPILE_RESULT = ${COMPILE_RESULT}")
#message(STATUS "RUN_RESULT = ${RUN_RESULT}")
if(COMPILE_RESULT AND NOT RUN_RESULT MATCHES "FAILED_TO_RUN" AND RUN_RESULT)
set(NaNAwareCCompiler ON)
else(COMPILE_RESULT AND NOT RUN_RESULT MATCHES "FAILED_TO_RUN" AND RUN_RESULT)
set(NaNAwareCCompiler OFF)
endif(COMPILE_RESULT AND NOT RUN_RESULT MATCHES "FAILED_TO_RUN" AND RUN_RESULT)
if(NaNAwareCCompiler)
message(STATUS "Check for NaN awareness in C compiler - found")
file(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log
"Determining whether C compiler is NaN aware succeeded with "
"the following output:\n${OUTPUT}\n\n"
)
else(NaNAwareCCompiler)
message(STATUS "Check for NaN awareness in C compiler - not found")
message(STATUS "WARNING: Setting PL_HAVE_QHULL and WITH_CSA to OFF.")
set(PL_HAVE_QHULL OFF CACHE BOOL "Enable use of the Qhull library" FORCE)
set(WITH_CSA OFF CACHE BOOL "Enable use of the csa library" FORCE)
file(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
"Determining whether C compiler is NaN aware failed with "
"the following output:\n${OUTPUT}\n\n"
)
endif(NaNAwareCCompiler)
endif(NOT DEFINED NaNAwareCCompiler)
endif(PL_HAVE_QHULL OR WITH_CSA)
if(PL_HAVE_QHULL)
find_package(QHULL)
if(QHULL_FOUND)
message(STATUS "QHULL_INCLUDE_DIRS = ${QHULL_INCLUDE_DIRS}")
message(STATUS "HAS_LIBQHULL_INCLUDE = ${HAS_LIBQHULL_INCLUDE}")
message(STATUS "QHULL_LIBRARIES = ${QHULL_LIBRARIES}")
set(QHULL_RPATH ${QHULL_LIBRARY_DIRS})
filter_rpath(QHULL_RPATH)
message(STATUS "QHULL_RPATH = ${QHULL_RPATH}")
include(CheckFunctionExists)
cmake_push_check_state()
list(APPEND CMAKE_REQUIRED_LIBRARIES ${QHULL_LIBRARIES})
check_function_exists(qh_new_qhull QH_NEW_EXIST)
cmake_pop_check_state()
if(NOT QH_NEW_EXIST)
message(STATUS "WARNING: function qh_new_qhull not found. Setting PL_HAVE_QHULL to OFF.")
set(PL_HAVE_QHULL OFF CACHE BOOL "Enable use of the Qhull library" FORCE)
endif(NOT QH_NEW_EXIST)
else(QHULL_FOUND)
message(STATUS "QHULL_INCLUDE_DIRS = ${QHULL_INCLUDE_DIRS}")
message(STATUS "QHULL_LIBRARIES = ${QHULL_LIBRARIES}")
message(STATUS
"WARNING: at least one of QHULL_INCLUDE_DIRS or QHULL_LIBRARIES is false so setting PL_HAVE_QHULL to OFF."
)
set(PL_HAVE_QHULL OFF CACHE BOOL "Enable use of the Qhull library" FORCE)
endif(QHULL_FOUND)
endif(PL_HAVE_QHULL)
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