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# cmake/modules/TestFortranIsnan.cmake
#
# Fortran bindings - check is isnan function is available
#
# Copyright (C) 2008 Andrew Ross
#
# 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
# Check if isnan function is available in fortran
IF(NOT DEFINED CMAKE_FORTRAN_HAVE_ISNAN)
MESSAGE(STATUS "Check if isnan function is available in fortran")
TRY_COMPILE(CMAKE_FORTRAN_HAVE_ISNAN
${CMAKE_BINARY_DIR}
${CMAKE_SOURCE_DIR}/cmake/modules/TestFortranIsnan.f
OUTPUT_VARIABLE OUTPUT)
IF (CMAKE_FORTRAN_HAVE_ISNAN)
MESSAGE(STATUS "Check for isnan in fortran - found")
SET (FORTRAN_HAVE_ISNAN 1 CACHE INTERNAL
"Does fortran have isnan function")
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log
"Determining if fortran has isnan function passed with "
"the following output:\n${OUTPUT}\n\n")
ELSE (CMAKE_FORTRAN_HAVE_ISNAN)
MESSAGE(STATUS "Check for isnan in fortran - not found")
SET (FORTRAN_HAVE_ISNAN 0 CACHE INTERNAL
"Does fortran have isnan function")
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
"Determining if fortran has isnan function failed with "
"the following output:\n${OUTPUT}\n\n")
ENDIF (CMAKE_FORTRAN_HAVE_ISNAN)
ENDIF(NOT DEFINED CMAKE_FORTRAN_HAVE_ISNAN)
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