configure.in

#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_INIT(emulator/main.cpp)
AM_INIT_AUTOMAKE(SimIt-MIPS, 1.0)
AM_CONFIG_HEADER(config.h:config.h.in)

#if the user sets CXXFLAGS
usr_CXXFLAGS=${CXXFLAGS+set}

# Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_PROG_RANLIB
AC_PROG_INSTALL
AM_PROG_LEX
AC_PROG_YACC
LT_AC_PROG_SED

if AX_IS_GXX() then
    cxxflags="-Wall -O3 -fomit-frame-pointer"
else
	AC_MSG_WARN(["CXX is not g++, cannot build compiled simulator"])
fi

# if the user does not set CXX flags, we set it
if test "$usr_CXXFLAGS" != set; then

  if AX_IS_GXX3() then
    cxxflags="$cxxflags -finline-limit-1500"
  fi

  if AX_CXX_FLAG_WORKS($cxxflags) then
    CXXFLAGS=$cxxflags
  else 
    if AX_CXX_FLAG_WORKS(["-O3"]) then
      CXXFLAGS="-O3"
    fi
  fi

  # see if fpe flags are supported
  if AX_CXX_FLAG_WORKS([-msse2 -mfpmath=sse]) then
      CXXFLAGS="$CXXFLAGS -msse2 -mfpmath=sse"
	  FP_OPTION=" -msse2 -mfpmath=sse"
	  AC_SUBST([FP_OPTION])
  fi

fi

# check if user wants jit
#AC_ARG_ENABLE(jit,
#  [  --enable-jit	Build just-in-time compiled-emulator],
#  [case "${enableval}" in
#     yes) jit=true ;;
#     no)  jit=false ;;
#     *) AC_MSG_ERROR(bad value ${enableval} for --enable-jit) ;;
#   esac],[jit=false])

jit=true;

if test "x$jit" = xtrue; then
	AC_CHECK_LIB(dl, dlerror, [jit=true],
		[jit=false; AC_MSG_ERROR([libdl not found, disable JIT])])
	AC_CHECK_LIB(pthread, pthread_testcancel, [jit=true],
		[jit=false; AC_MSG_ERROR([libpthread not found, disable JIT])])
fi

AM_CONDITIONAL(ENABLE_JIT, test x$jit = xtrue)


# Check for gmp
#AC_CHECK_LIB(gmp, __gmpz_init, , [AC_MSG_ERROR(
#  [GNU MP not found, see http://swox.com/gmp])])

# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([fcntl.h inttypes.h stdint.h stdlib.h string.h sys/time.h sys/resource.h unistd.h sys/mman.h])
AC_PREFIX_DEFAULT("`pwd`/build")

# Checks for typedefs, structures, and compiler characteristics.
# AC_HEADER_STDBOOL
AC_C_CONST
AC_TYPE_UID_T
AC_C_INLINE
AC_C_BIGENDIAN
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(long long)
#AC_CHECK_MEMBERS([struct stat.st_blksize])
#AC_STRUCT_ST_BLOCKS
#AC_CHECK_MEMBERS([struct stat.st_rdev])
AC_HEADER_TIME

# Checks for library functions.
#AC_FUNC_MALLOC
# AC_FUNC_REALLOC
AC_TYPE_SIGNAL
#AC_CHECK_FUNCS([memset])
AC_FUNC_MMAP

AC_CONFIG_FILES([Makefile
				 issgen/Makefile
				 decgen/Makefile
				 emulator/Makefile
				 jit/build_dll.hpp
				 jit/build_scs
				 jit/Makefile
				 jit/decomp_src/Makefile])
AC_OUTPUT