# cmake/modules/TestForHighBitCharacters.cmake

#

# Copyright (C) 2006  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

# Check if ctype.h macros work on characters with the high bit set.

if(NOT DEFINED CMAKE_HIGH_BIT_CHARACTERS)

   message(STATUS 

      "Check for whether ctype.h macros work on characters with the\n"

   "   high bit set."

   )

  try_compile(CMAKE_HIGH_BIT_CHARACTERS  

    ${CMAKE_BINARY_DIR}

    ${CMAKE_SOURCE_DIR}/CMakeModules/TestForHighBitCharacters.c

    OUTPUT_VARIABLE OUTPUT)

  if(CMAKE_HIGH_BIT_CHARACTERS)

    message(STATUS "High-bit characters - work")

    set(HIGH_BIT_CHARACTERS 1 CACHE INTERNAL

      "Do ctype.h macros work on high-bit characters")

      file(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log

      "Determining if ctype.h macros work on high-bit characters passed with "

      "the following output:\n${OUTPUT}\n\n")

  else(CMAKE_HIGH_BIT_CHARACTERS)

    message(STATUS "High-bit characters - don't work")

    set(HIGH_BIT_CHARACTERS 0 CACHE INTERNAL

      "Do ctype.h macros work on high-bit characters")

      file(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log

      "Determining if ctype.h macros work on high-bit characters failed with "

      "the following output:\n${OUTPUT}\n\n")

  endif(CMAKE_HIGH_BIT_CHARACTERS)

endif(NOT DEFINED CMAKE_HIGH_BIT_CHARACTERS)