48 lines
2.0 KiB
CMake
48 lines
2.0 KiB
CMake
# cmake/TestSignalType.cmake
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#
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# Test for the return type of signal defined in <signal.h>
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#
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# Copyright (C) 2006 Andrew Ross
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#
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# This file is part of PLplot.
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#
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# PLplot is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Library General Public License as published
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# by the Free Software Foundation; version 2 of the License.
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#
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# PLplot is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Library General Public License for more details.
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#
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# You should have received a copy of the GNU Library General Public License
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# along with the file PLplot; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# If signal.h defines signal as returning a pointer to a function
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# returning void RETSIGTYPE is defined as void. Otherwise RETSIGTYPE is
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# defined as int.
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IF(NOT DEFINED CMAKE_TEST_SIGNAL_TYPE)
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MESSAGE(STATUS "Check for signal return type in <signal.h>")
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TRY_COMPILE(CMAKE_TEST_SIGNAL_TYPE
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${CMAKE_BINARY_DIR}
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${CMAKE_CURRENT_LIST_DIR}/TestSignalType.c
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OUTPUT_VARIABLE OUTPUT)
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IF (CMAKE_TEST_SIGNAL_TYPE)
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MESSAGE(STATUS "Check for signal handler return type type void - found")
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SET (RETSIGTYPE void CACHE INTERNAL
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"Signal return type")
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FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log
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"Determining if signal handler return type is void passed with "
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"the following output:\n${OUTPUT}\n\n")
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ELSE (CMAKE_TEST_SIGNAL_TYPE)
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MESSAGE(STATUS "Check for signal handler return type type void - not found")
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SET (RETSIGTYPE int CACHE INTERNAL
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"Signal return type")
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FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
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"Determining if signal handler return type is void failed with "
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"the following output:\n${OUTPUT}\n\n")
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ENDIF (CMAKE_TEST_SIGNAL_TYPE)
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ENDIF(NOT DEFINED CMAKE_TEST_SIGNAL_TYPE)
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