configure.in

   1 #                                               -*- Autoconf -*-
   2 # Process this file with autoconf to produce a configure script.
   3
   4 AC_PREREQ(2.61)
   5 AC_INIT(avr-sim, 1.0, thaber@uhasselt.be)
   6 AC_CONFIG_SRCDIR([src/Instructions.h])
   7 AC_CONFIG_HEADER([src/config.h])
   8 AM_INIT_AUTOMAKE
   9
  10 # Checks for programs.
  11 AC_PROG_AWK
  12 AC_PROG_CXX
  13 AC_PROG_CC
  14 AC_PROG_INSTALL
  15 AC_PROG_LN_S
  16 AC_PROG_MAKE_SET
  17
  18 # Checks for libraries.
  19 AC_LANG([C++])
  20 XML2_INCLUDES="-I /usr/include/libxml2"
  21 AC_SUBST(XML2_INCLUDES)
  22 AC_CHECK_LIB(xml2,[xmlReadFile],,[AC_MSG_ERROR([libxml2 library missing])])
  23
  24 AC_CHECK_LIB(bfd,[bfd_init])
  25
  26 # Checks for header files.
  27 AC_HEADER_DIRENT
  28 AC_HEADER_STDC
  29 AC_CHECK_HEADERS([arpa/inet.h fcntl.h inttypes.h malloc.h memory.h netdb.h netinet/in.h stddef.h sys/socket.h unistd.h])
  30
  31 # Checks for typedefs, structures, and compiler characteristics.
  32 AC_HEADER_STDBOOL
  33 AC_C_CONST
  34 AC_C_INLINE
  35 AC_C_VOLATILE
  36
  37 #
  38 # AC_LIBLUA_CHECK
  39 #
  40 AC_DEFUN([AC_LIBLUA_CHECK],[
  41
  42         if test "x$lua_dir" != "x"; then
  43                 #
  44                 # The user specified a directory in which liblua resides,
  45                 # so add the "include" subdirectory of that directory to
  46                 # the include file search path and the "lib" subdirectory
  47                 # of that directory to the library search path.
  48                 #
  49                 # XXX - if there's also a liblua in a directory that's
  50                 # already in CFLAGS, CPPFLAGS, or LDFLAGS, this won't
  51                 # make us find the version in the specified directory,
  52                 # as the compiler and/or linker will search that other
  53                 # directory before it searches the specified directory.
  54                 #
  55                 save_CFLAGS="$CFLAGS"
  56                 CFLAGS="$CFLAGS -I$lua_dir/include"
  57                 save_CXXFLAGS="$CFLAGS"
  58                 CXXFLAGS="$CXXFLAGS -I$lua_dir/include"
  59                 save_CPPFLAGS="$CPPFLAGS"
  60                 CPPFLAGS="$CPPFLAGS -I$lua_dir/include"
  61                 save_LIBS="$LIBS"
  62                 LIBS="$LIBS -L$lua_dir/lib -llua50"
  63                 save_LDFLAGS="$LDFLAGS"
  64                 LDFLAGS="$LDFLAGS -L$lua_dir/lib"
  65         else
  66                 #
  67                 # The user specified no directory in which liblua resides,
  68                 # so just add "-llua50 -llualib50" to the used libs.
  69                 #
  70                 save_CFLAGS="$CFLAGS"
  71                 save_CXXLAGS="$CXXFLAGS"
  72                 save_CPPFLAGS="$CPPFLAGS"
  73                 save_LDFLAGS="$LDFLAGS"
  74                 save_LIBS="$LIBS"
  75                 LIBS="$LIBS -llua50"
  76         fi
  77
  78         #
  79         # Make sure we have "lua.h", "lualib.h" and "lauxlib.h".  If we don't, it means we probably
  80         # don't have liblua, so don't use it.
  81         #
  82         AC_CHECK_HEADERS(lua50/lua.h lua50/lualib.h lua50/lauxlib.h,,
  83         [
  84                 if test "x$lua_dir" != "x"; then
  85                         #
  86                         # The user used "--with-lua=" to specify a directory
  87                         # containing liblua, but we didn't find the header file
  88                         # there; that either means they didn't specify the
  89                         # right directory or are confused about whether liblua
  90                         # is, in fact, installed.  Report the error and give up.
  91                         #
  92                         AC_MSG_ERROR([liblua header not found in directory specified in --with-lua])
  93                 else
  94                         if test "x$want_lua" = "xyes"; then
  95                                 #
  96                                 # The user tried to force us to use the library, but we
  97                                 # couldn't find the header file; report an error.
  98                                 #
  99                                 AC_MSG_ERROR(Header file lua.h not found.)
 100                         else
 101                                 #
 102                                 # We couldn't find the header file; don't use the
 103                                 # library, as it's probably not present.
 104                                 #
 105                                 want_lua=no
 106                         fi
 107                 fi
 108         ])
 109
 110         if test "x$want_lua" != "xno"; then
 111                 #
 112                 # Well, we at least have the lua header file.
 113                 #
 114                 # let's check if the libs are there
 115                 #
 116
 117         LIBS="$LIBS $LUA_LIBS -lm"
 118
 119                 AC_CHECK_LIB(lua50, lua_call,
 120                 [
 121                         if test "x$lua_dir" != "x"; then
 122                                 #
 123                                 # Put the "-I" and "-L" flags for lua at
 124                                 # the beginning of CFLAGS, CPPFLAGS,
 125                                 # LDFLAGS, and LIBS.
 126                                 #
 127                                 LUA_LIBS="-L$lua_dir/lib -llua50"
 128                                 LUA_INCLUDES="-I$lua_dir/include"
 129                         else
 130                                 LUA_LIBS="-llua50"
 131                                 LUA_INCLUDES=""
 132                         fi
 133
 134                         #
 135                         # we got lua, now look for lualib
 136                         #
 137                         AC_CHECK_LIB(lualib50, luaL_openlib,
 138                         [
 139                                 LUA_LIBS="$LUA_LIBS -llualib50"
 140                         ])
 141                 ],[
 142                         #
 143                         # Restore the versions of CFLAGS, CPPFLAGS,
 144                         # LDFLAGS, and LIBS before we added the
 145                         # "--with-lua=" directory, as we didn't
 146                         # actually find lua there.
 147                         #
 148                         CFLAGS="$save_CFLAGS"
 149                         CXXFLAGS="$save_CXXFLAGS"
 150                         CPPFLAGS="$save_CPPFLAGS"
 151                         LDFLAGS="$save_LDFLAGS"
 152                         LIBS="$save_LIBS"
 153                         LUA_LIBS=""
 154                         # User requested --with-lua but it isn't available
 155                         if test "x$want_lua" = "xyes"
 156                         then
 157                                 AC_MSG_ERROR(Linking with liblua failed.)
 158                         fi
 159                         want_lua=no
 160                 ])
 161
 162         CFLAGS="$save_CFLAGS"
 163         CXXFLAGS="$save_CXXFLAGS"
 164         CPPFLAGS="$save_CPPFLAGS"
 165         LDFLAGS="$save_LDFLAGS"
 166         LIBS="$save_LIBS"
 167         AC_SUBST(LUA_LIBS)
 168         AC_SUBST(LUA_INCLUDES)
 169
 170         fi
 171 ])
 172
 173 AC_ARG_ENABLE(scripting,
 174      [  --disable-scripting           Disable scripting support],
 175      [case "${enableval}" in
 176            yes) enable_scripting=yes ;;
 177        no)  enable_scripting=no ;;
 178            *) AC_MSG_ERROR(bad value ${enableval} for --disable-scripting) ;;
 179           esac],[enable_scripting=yes])
 180
 181 if test "$enable_scripting" = "no"; then
 182   echo disabling scripting support
 183 else
 184   echo enabling scripting support
 185   [
 186           enable_scripting=yes
 187   ]
 188   AC_DEFINE([ENABLE_SCRIPTING],[],[True if scripting is being used])
 189 fi
 190
 191 if test "$enable_scripting" = "yes"; then
 192         dnl Check for lua
 193         AC_MSG_CHECKING(for lua)
 194
 195         AC_ARG_WITH(lua,
 196                         [  --with-lua[[=DIR]]       use liblua (located in directory DIR, if supplied) for the scripting.  [[default=yes]]],
 197                         [
 198                                 case "${withval}" in
 199                                   yes) want_lua=yes ;;
 200                                   no) want_lua=no ;;
 201                                   *) want_lua=yes; lua_dir="$withval" ;;
 202                                 esac
 203                         ],[
 204                                 #
 205                                 # Use liblua if it's present, otherwise don't.
 206                                 #
 207                                 want_lua=no
 208                                 lua_dir=
 209                         ], [want_lua=no])
 210         if test "x$want_lua" = "xno" ; then
 211                 AC_MSG_RESULT(no)
 212         else
 213                 AC_MSG_RESULT(yes)
 214                 AC_LIBLUA_CHECK
 215                 if test "x$want_lua" = "xno" ; then
 216                         AC_MSG_RESULT(liblua not found - disabling support for the lua scripting plugin)
 217                 fi
 218         fi
 219         AM_CONDITIONAL(HAVE_LIBLUA, test x$want_lua = xyes)
 220
 221         if test "x$want_lua" = "xno"; then
 222                 AC_MSG_ERROR([Lua is required for scripting])
 223         fi
 224 fi
 225
 226 AC_ARG_ENABLE(optimization,
 227      [  --enable-optimization           Enable program optimizations],
 228      [case "${enableval}" in
 229            yes) enable_optimization=yes ;;
 230        no)  enable_optimization=no ;;
 231            *) AC_MSG_ERROR(bad value ${enableval} for --enable-optimizations) ;;
 232           esac],[enable_optimization=no])
 233
 234 if test "$enable_optimization" = "yes"; then
 235         OPTIMIZATION_FLAGS="-O6 -g1 -fomit-frame-pointer -falign-functions=4 -fexpensive-optimizations -fschedule-insns2 -finline-functions -funroll-loops"
 236 else
 237         OPTIMIZATION_FLAGS="-g -DDEBUG"
 238 fi
 239 AC_SUBST(OPTIMIZATION_FLAGS)
 240
 241 # Checks for library functions.
 242 AC_FUNC_CLOSEDIR_VOID
 243 AC_CHECK_FUNCS([inet_ntoa memset socket strchr strtoul])
 244
 245 AC_CONFIG_FILES([ Makefile src/Makefile ])
 246 AC_OUTPUT
 247
 248 AC_MSG_RESULT([
 249
 250 avr-sim-$PACKAGE_VERSION is now configured for $canonical_host_type
 251
 252   Build:                $build
 253   Host:                 $host
 254   Source directory:     $srcdir
 255   Installation prefix:  $prefix
 256   $GCC
 257   C compiler:           $CC $CPPFLAGS $CFLAGS
 258   C++ compiler:         $CXX $CPPFLAGS $CXXFLAGS
 259
 260   scripting:            $enable_scripting
 261
 262 ])