Macros.cmake - mozsearch

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include(CheckSymbolExists)

include(CheckIncludeFiles)

# Check if each symbol in the symbol list exists,

# and define PREFIX__HAVE_SYMNAME to 1 if yes.

# SYMLIST: list of symbols to check

# HEADERS: header files to be included in check code

# PREFIX: the prefix of definition

macro(CHECK_SYMBOLS_EXIST SYMLIST HEADERS PREFIX)

  foreach(SYMNAME ${SYMLIST})

    string(TOUPPER "${SYMNAME}" SYMNAME_UPPER)

    if ("${PREFIX}" STREQUAL "")

      set(HAVE_SYM_DEF "HAVE_${SYMNAME_UPPER}")

    else()

      set(HAVE_SYM_DEF "${PREFIX}__HAVE_${SYMNAME_UPPER}")

    endif()

    CHECK_SYMBOL_EXISTS(${SYMNAME} "${HEADERS}" ${HAVE_SYM_DEF})

  endforeach()

endmacro()

# Check if file exists, define PREFIX__HAVE_FILE to 1 if yes,

# and collect file to EVENT_INCLUDES

macro(CHECK_INCLUDE_FILE_CONCAT FILE PREFIX)

  string(REGEX REPLACE "[./]" "_" FILE_UL ${FILE})

  string(TOUPPER "${FILE_UL}" FILE_UL_UPPER)

  if ("${PREFIX}" STREQUAL "")

    set(HAVE_FILE_DEF "HAVE_${FILE_UL_UPPER}")

  else()

    set(HAVE_FILE_DEF "${PREFIX}__HAVE_${FILE_UL_UPPER}")

  endif()

  CHECK_INCLUDE_FILES("${EVENT_INCLUDES};${FILE}" ${HAVE_FILE_DEF})

  if(${HAVE_FILE_DEF})

    set(EVENT_INCLUDES ${EVENT_INCLUDES} ${FILE})

  endif()

endmacro()