apache2/build/find_lua.m4

   1 dnl Check for LUA Libraries
   2 dnl CHECK_LUA(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
   3 dnl Sets:
   4 dnl  LUA_CFLAGS
   5 dnl  LUA_LIBS
   6
   7 LUA_CONFIG=""
   8 LUA_CFLAGS=""
   9 LUA_LIBS=""
  10 LUA_CONFIG=pkg-config
  11 LUA_PKGNAMES="lua5.1 lua-5.1 lua_5.1 lua-51 lua_51 lua51 lua5 lua"
  12 LUA_SONAMES="so la sl dll dylib"
  13
  14 AC_DEFUN([CHECK_LUA],
  15 [dnl
  16
  17 AC_ARG_WITH(
  18     lua,
  19     [AC_HELP_STRING([--with-lua=PATH],[Path to lua prefix or config script])],
  20     [test_paths="${with_lua}"],
  21     [test_paths="/usr/local/liblua /usr/local/lua /usr/local /opt/liblua /opt/lua /opt /usr"; ])
  22
  23 AC_MSG_CHECKING([for liblua config script])
  24
  25 for x in ${test_paths}; do
  26     dnl # Determine if the script was specified and use it directly
  27     if test ! -d "$x" -a -e "$x"; then
  28         LUA_CONFIG=$x
  29         break
  30     fi
  31
  32     dnl # Try known config script names/locations
  33     for y in $LUA_CONFIG; do
  34         if test -e "${x}/bin/${y}"; then
  35             LUA_CONFIG="${x}/bin/${y}"
  36             lua_config="${LUA_CONFIG}"
  37             break
  38         elif test -e "${x}/${y}"; then
  39             LUA_CONFIG="${x}/${y}"
  40             lua_config="${LUA_CONFIG}"
  41             break
  42         fi
  43     done
  44     if test -n "${lua_config}"; then
  45         break
  46     fi
  47 done
  48
  49 dnl # Try known package names
  50 if test -n "${LUA_CONFIG}"; then
  51     LUA_PKGNAME=""
  52     for x in ${LUA_PKGNAMES}; do
  53         if ${LUA_CONFIG} --exists ${x}; then
  54             LUA_PKGNAME="$x"
  55             break
  56         fi
  57     done
  58 fi
  59
  60 if test -n "${LUA_PKGNAME}"; then
  61     AC_MSG_RESULT([${LUA_CONFIG}])
  62     LUA_CFLAGS="`${LUA_CONFIG} ${LUA_PKGNAME} --cflags`"
  63     if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(lua CFLAGS: $LUA_CFLAGS); fi
  64     LUA_LIBS="`${LUA_CONFIG} ${LUA_PKGNAME} --libs`"
  65     if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(lua LIBS: $LUA_LIBS); fi
  66     CFLAGS=$save_CFLAGS
  67     LDFLAGS=$save_LDFLAGS
  68 else
  69     AC_MSG_RESULT([no])
  70
  71     dnl Hack to just try to find the lib and include
  72     AC_MSG_CHECKING([for lua install])
  73     for x in ${test_paths}; do
  74         for y in ${LUA_SONAMES}; do
  75             if test -e "${x}/liblua5.1.${y}"; then
  76                 lua_lib_path="${x}"
  77                 lua_lib_name="lua5.1"
  78                 break
  79             elif test -e "${x}/lib/liblua5.1.${y}"; then
  80                 lua_lib_path="${x}/lib"
  81                 lua_lib_name="lua5.1"
  82                 break
  83             elif test -e "${x}/lib64/liblua5.1.${y}"; then
  84                 lua_lib_path="${x}/lib64"
  85                 lua_lib_name="lua5.1"
  86                 break
  87             elif test -e "${x}/lib32/liblua5.1.${y}"; then
  88                 lua_lib_path="${x}/lib32"
  89                 lua_lib_name="lua5.1"
  90                 break
  91             elif test -e "${x}/liblua51.${y}"; then
  92                 lua_lib_path="${x}"
  93                 lua_lib_name="lua51"
  94                 break
  95             elif test -e "${x}/lib/liblua51.${y}"; then
  96                 lua_lib_path="${x}/lib"
  97                 lua_lib_name="lua51"
  98                 break
  99             elif test -e "${x}/lib64/liblua51.${y}"; then
 100                 lua_lib_path="${x}/lib64"
 101                 lua_lib_name="lua51"
 102                 break
 103             elif test -e "${x}/lib32/liblua51.${y}"; then
 104                 lua_lib_path="${x}/lib32"
 105                 lua_lib_name="lua51"
 106                 break
 107             elif test -e "${x}/liblua.${y}"; then
 108                 lua_lib_path="${x}"
 109                 lua_lib_name="lua"
 110                 break
 111             elif test -e "${x}/lib/liblua.${y}"; then
 112                 lua_lib_path="${x}/lib"
 113                 lua_lib_name="lua"
 114                 break
 115             elif test -e "${x}/lib64/liblua.${y}"; then
 116                 lua_lib_path="${x}/lib64"
 117                 lua_lib_name="lua"
 118                 break
 119             elif test -e "${x}/lib32/liblua.${y}"; then
 120                 lua_lib_path="${x}/lib32"
 121                 lua_lib_name="lua"
 122                 break
 123             else
 124                 lua_lib_path=""
 125                 lua_lib_name=""
 126             fi
 127         done
 128         if test -n "$lua_lib_path"; then
 129             break
 130         fi
 131     done
 132     for x in ${test_paths}; do
 133         if test -e "${x}/include/lua.h"; then
 134             lua_inc_path="${x}/include"
 135             break
 136         elif test -e "${x}/lua.h"; then
 137             lua_inc_path="${x}"
 138             break
 139         fi
 140
 141         dnl # Check some sub-paths as well
 142         for lua_pkg_name in ${lua_lib_name} ${LUA_PKGNAMES}; do
 143             if test -e "${x}/include/${lua_pkg_name}/lua.h"; then
 144                 lua_inc_path="${x}/include"
 145                 break
 146             elif test -e "${x}/${lua_pkg_name}/lua.h"; then
 147                 lua_inc_path="${x}"
 148                 break
 149             else
 150                 lua_inc_path=""
 151             fi
 152         done
 153         if test -n "$lua_inc_path"; then
 154             break
 155         fi
 156     done
 157     if test -n "${lua_lib_path}" -a -n "${lua_inc_path}"; then
 158         LUA_CONFIG=""
 159         AC_MSG_RESULT([${lua_lib_path} ${lua_inc_path}])
 160         LUA_CFLAGS="-I${lua_inc_path}"
 161         LUA_LIBS="-L${lua_lib_path} -l${lua_lib_name}"
 162         CFLAGS=$save_CFLAGS
 163         LDFLAGS=$save_LDFLAGS
 164     else
 165         AC_MSG_RESULT([no])
 166     fi
 167 fi
 168
 169 if test -n "${LUA_LIBS}"; then
 170     LUA_CFLAGS="-DWITH_LUA ${LUA_CFLAGS}"
 171 fi
 172
 173 AC_SUBST(LUA_LIBS)
 174 AC_SUBST(LUA_CFLAGS)
 175
 176 if test "${with_path}" != "no"; then
 177     if test -z "${LUA_LIBS}"; then
 178       ifelse([$2], , AC_MSG_NOTICE([optional lua library not found]), $2)
 179     else
 180       AC_MSG_NOTICE([using '${LUA_LIBS}' for lua Library])
 181       ifelse([$1], , , $1)
 182     fi
 183 fi
 184 ])