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94 lines
3.1 KiB
94 lines
3.1 KiB
2 years ago
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# @HEADER
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# ************************************************************************
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#
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# TriBITS: Tribal Build, Integrate, and Test System
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# Copyright 2013 Sandia Corporation
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#
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# Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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# the U.S. Government retains certain rights in this software.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the Corporation nor the names of the
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
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# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# ************************************************************************
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# @HEADER
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include(CheckCSourceCompiles)
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if (NOT MATH_LIBRARY_IS_SUPPLIED AND NOT MATH_LIBRARY_IS_SET)
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set(CMAKE_REQUIRED_LIBRARIES ${${PROJECT_NAME}_EXTRA_LINK_FLAGS})
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check_c_source_compiles(
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"
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#include <math.h>
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int main()
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{
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double val1 = sqrt(1.0);
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double val2 = log10(2.0);
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double val3 = log(2.0);
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return 0;
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}
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"
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MATH_LIBRARY_IS_SUPPLIED
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)
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set(CMAKE_REQUIRED_LIBRARIES)
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if (NOT MATH_LIBRARY_IS_SUPPLIED)
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if (${PROJECT_NAME}_VERBOSE_CONFIGURE)
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message(STATUS "Searching for -lm ...")
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endif()
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set(MATH_LIBRARY NOTFOUND)
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find_library(MATH_LIBRARY m)
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if (${PROJECT_NAME}_VERBOSE_CONFIGURE)
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message(STATUS "MATH_LIBRARY = ${MATH_LIBRARY}")
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endif()
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if (MATH_LIBRARY)
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if (NOT MATH_LIBRARY_IS_SET)
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message(STATUS "Appending math library ${MATH_LIBRARY} to link line ...")
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set(${PROJECT_NAME}_EXTRA_LINK_FLAGS ${${PROJECT_NAME}_EXTRA_LINK_FLAGS} ${MATH_LIBRARY}
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CACHE STRING "" FORCE)
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global_set(MATH_LIBRARY_IS_SET ON)
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# NOTE: Only do this once and not over and over or you will relink
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# everything after each configure!
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endif()
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else()
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message(SEND_ERROR
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"Error, the math library for C programs could not be found!"
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)
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endif()
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endif()
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endif()
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