git.m6w6.name Git - m6w6/libmemcached/blob - Include.cmake

   1
   2 include(CheckTypeSize)
   3 include(CheckCSourceRuns)
   4 include(CheckIncludeFileCXX)
   5 include(CheckCXXSymbolExists)
   6 include(CheckCXXCompilerFlag)
   7 include(CheckCXXSourceRuns)
   8
   9 function(safe_string STRING OUTPUT)
  10     string(REGEX REPLACE "[^0-9a-zA-Z_]" "_" HEADER_SAFE ${STRING})
  11     string(TOUPPER "${HEADER_SAFE}" HEADER_DEFN)
  12     set(${OUTPUT} ${HEADER_DEFN} PARENT_SCOPE)
  13 endfunction(safe_string)
  14
  15 function(define_cpp DEF)
  16     safe_string(${DEF} CNST)
  17     add_compile_definitions(HAVE_${CNST}=1)
  18 endfunction(define_cpp)
  19
  20 function(check_header HEADER_PATH)
  21     safe_string(${HEADER_PATH} HEADER_CONST)
  22     check_include_file_cxx(${HEADER_PATH} HAVE_${HEADER_CONST})
  23 endfunction(check_header)
  24
  25 function(check_decl DECL HEADER)
  26     safe_string(${DECL} DECL_CONST)
  27     check_cxx_symbol_exists(${DECL} ${HEADER} HAVE_${DECL_CONST})
  28 endfunction(check_decl)
  29
  30 function(check_type TYPE HEADER)
  31     safe_string(${TYPE} TYPE_CONST)
  32     SET(CMAKE_EXTRA_INCLUDE_FILES ${HEADER})
  33     check_type_size(${TYPE} ${TYPE_CONST} LANGUAGE CXX)
  34     SET(CMAKE_EXTRA_INCLUDE_FILES)
  35 endfunction(check_type)
  36
  37 function(check_debug)
  38     if(${CMAKE_BUILD_TYPE} STREQUAL Debug)
  39         add_compile_definitions(DEBUG=1)
  40         add_compile_options(-Wall -Wextra)
  41     endif()
  42 endfunction(check_debug)
  43
  44 function(check_stdatomic)
  45     check_cxx_source_runs(
  46             "#include <atomic>
  47             int main() {
  48                 std::atomic<int> i(0);
  49                 return atomic_fetch_add(&i,1);
  50             }"
  51             HAVE_CXX_STDATOMIC)
  52     check_c_source_runs(
  53             "#include <stdatomic.h>
  54             int main() {
  55                 atomic_int i;
  56                 atomic_init(&i, 0);
  57                 return atomic_fetch_add(&i,1);
  58             }"
  59             HAVE_C_STDATOMIC)
  60 endfunction(check_atomic_builtins)