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#!/bin/sh

AC_PREREQ(2.60)
AC_INIT(.version)
AC_CONFIG_SRCDIR([Makefile.in])
AC_CONFIG_HEADER([sdccconf.h:sdccconf_in.h as/link/asxxxx_config.h])

AC_PROG_AWK

AC_MSG_CHECKING(version of the package)
if test -f ${srcdir}/.version; then
  { read VERSION; } < ${srcdir}/.version
  AC_MSG_RESULT($VERSION)
elif test -f ../.version; then
  { read VERSION; } < ../.version
  AC_MSG_RESULT($VERSION)
else
  VERSION="0.0.0"
  AC_MSG_RESULT(unknown using 0.0.0)
fi
VERSIONHI=`echo $VERSION|$AWK 'BEGIN {FS="."} {print $1}'`
VERSIONLO=`echo $VERSION|$AWK 'BEGIN {FS="."} {print $2}'`
VERSIONP=`echo $VERSION|$AWK 'BEGIN {FS="."} {print $3}'`

AC_SUBST(PACKAGE, [sdcc])
AC_SUBST(VERSION)
AC_SUBST(VERSIONHI)
AC_SUBST(VERSIONLO)
AC_SUBST(VERSIONP)
AC_DEFINE_UNQUOTED(SDCC_VERSION_LO, ${VERSIONLO})
AC_DEFINE_UNQUOTED(SDCC_VERSION_HI, ${VERSIONHI})
AC_DEFINE_UNQUOTED(SDCC_VERSION_P, ${VERSIONP})
AC_DEFINE_UNQUOTED(SDCC_VERSION_STR, "${VERSION}")
AC_ARG_PROGRAM
sdcc_cv_version=$VERSION
sdcc_cv_versionhi=$VERSIONHI
sdcc_cv_versionlo=$VERSIONLO
sdcc_cv_versionp=$VERSIONP


# Required programs
# ===========================================================================
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_RANLIB
AC_CHECK_PROG(AUTOCONF, autoconf, autoconf, :)
AC_CHECK_PROG(STRIP, strip, strip, :)
AC_CHECK_PROG(AS, as, as, :)
AC_CHECK_PROG(CP, cp, cp, :)

dnl Don't use AC_PROG_LEX
dnl LEXLIB is not useful in gcc.
AC_CHECK_PROGS(LEX, flex lex, :)

dnl Don't use AC_PROG_YACC
AC_CHECK_PROGS(YACC, 'bison -y' byacc yacc, :)

AC_DEFUN([SDCC_REQUIRE_PROG],
[if test "$1" = ":"; then
  AC_MSG_ERROR([Cannot find required program $2.])
 fi
])

SDCC_REQUIRE_PROG($YACC, bison)
SDCC_REQUIRE_PROG($LEX, flex)

AC_LANG_C

AC_ARG_WITH([ccache],
    AC_HELP_STRING([--without-ccache], [do not use ccache even if available]),
    [], [])
case x${with_ccache-yes} in
    xyes) AC_CHECK_PROG([CCACHE], [ccache], [ccache], []) ;;
    xno) AC_SUBST([CCACHE], []) ;;
    *) AC_SUBST([CCACHE], [$with_ccache]) ;;
esac


# Checking for functions
# ===========================================================================
AC_CHECK_FUNCS(strerror)
AC_CHECK_FUNCS(vsnprintf snprintf vsprintf mkstemp)


# Macro definitions
# ===========================================================================

# adl_DD_COPT macro checks if the compiler specified as the 1st parameter
# supports option specified as the 2nd parameter
# For example: DD_CPORT(CXX, fPIC)

AC_DEFUN([adl_DD_COPT], [
AC_CACHE_CHECK(whether $$1 accepts -$2,sdcc_cv_$1$2,
cat >_test_.c <<EOF
#include <stdio.h>
void main(void) {}
EOF
$$1 -v -$2 -c _test_.c 1>&5 2>&5
if test "$?" = "0"; then
  sdcc_cv_$1$2="yes"
else
  sdcc_cv_$1$2="no"
fi
rm -f _test_.* a.out)
])

# This macro expands DIR and assigns it to RET.
# If DIR is NONE, then it's replaced by DEFAULT.
#
# Based on AC_DEFINE_DIR
#
# Examples:
#
#  adl_EXPAND(prefix, "/usr/local", expanded_prefix)

AC_DEFUN([adl_EXPAND], [
  test "x$prefix" = xNONE && prefix="$ac_default_prefix"
  test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
  ac_expand=[$]$1
  test "x$ac_expand" = xNONE && ac_expand="[$]$2"
  ac_expand=`eval echo [$]ac_expand`
  $3=`eval echo [$]ac_expand`
])

# adl_NORMALIZE_PATH
#
#  - empty paths are changed to '.'
#  - trailing slashes are removed
#  - repeated slashes are squeezed except a leading doubled slash '//'
#    (which might indicate a networked disk on some OS).
#
#
# REFERENCE_STRING is used to turn '/' into '\' and vice-versa: if
# REFERENCE_STRING contains some backslashes, all slashes and backslashes
# are turned into backslashes, otherwise they are all turned into slashes.
#
# This makes processing of DOS filenames quite easier, because you can turn a
# filename to the Unix notation, make your processing, and turn it back to
# original notation.

dnl Available from the GNU Autoconf Macro Archive at:
dnl http://www.gnu.org/software/ac-archive/htmldoc/normpath.html
dnl
AC_DEFUN([adl_NORMALIZE_PATH],
[case ":[$]$1:" in
dnl change empty paths to '.'
  ::) $1='.' ;;
dnl strip trailing slashes
  :*[[\\/]]:) $1=`echo "[$]$1" | sed 's,[[\\/]]*[$],,'` ;;
  :*:) ;;
esac
dnl squeze repeated slashes
case ifelse($2,,"[$]$1",$2) in
dnl if the path contains any backslashes, turn slashes into backslashes

dnl Bernhard Held 2003-04-06
dnl This was the original line. It does not:
dnl - convert the first slash
dnl - replace a slash with a double-backslash
dnl *\\*) $1=`echo "[$]$1" | sed 's,\(.\)[[\\/]][[\\/]]*,\1\\\\,g'` ;;
    *\\*) $1=`echo "[$]$1" | sed 's,\(.\)[[\\/]][[\\/]]*,\1\\\\\\\\,g
                                  s,^[[\\/]],\\\\\\\\,'` ;;

dnl if the path contains slashes, also turn backslashes into slashes
 *) $1=`echo "[$]$1" | sed 's,\(.\)[[\\/]][[\\/]]*,\1/,g'` ;;
esac])


# adl_COMPUTE_RELATIVE_PATH
#
# PATH_LIST is a space-separated list of colon-separated triplets of the form
# 'FROM:TO:RESULT'. This function iterates over these triplets and set $RESULT
# to the relative path from $FROM to $TO. Note that $FROM and $TO needs to be
# absolute filenames for this macro to success.

AC_DEFUN([adl_COMPUTE_RELATIVE_PATHS],
[for _lcl_i in $1; do
  _lcl_from=\[$]`echo "[$]_lcl_i" | sed 's,:.*$,,'`
  _lcl_to=\[$]`echo "[$]_lcl_i" | sed 's,^[[^:]]*:,,' | sed 's,:[[^:]]*$,,'`
  _lcl_result_var=`echo "[$]_lcl_i" | sed 's,^.*:,,'`
  adl_RECURSIVE_EVAL([[$]_lcl_from], [_lcl_from])
  adl_RECURSIVE_EVAL([[$]_lcl_to], [_lcl_to])
  _lcl_notation="$_lcl_from$_lcl_to"
  adl_NORMALIZE_PATH([_lcl_from],['/'])
  adl_NORMALIZE_PATH([_lcl_to],['/'])
  adl_COMPUTE_RELATIVE_PATH([_lcl_from], [_lcl_to], [_lcl_result_tmp])
  adl_NORMALIZE_PATH([_lcl_result_tmp],["[$]_lcl_notation"])
  eval $_lcl_result_var='[$]_lcl_result_tmp'
done])

## Note:
## *****
## The following helper macros are too fragile to be used out
## of adl_COMPUTE_RELATIVE_PATHS (mainly because they assume that
## paths are normalized), that's why I'm keeping them in the same file.
## Still, some of them maybe worth to reuse.

dnl adl_COMPUTE_RELATIVE_PATH(FROM, TO, RESULT)
dnl ===========================================
dnl Compute the relative path to go from $FROM to $TO and set the value
dnl of $RESULT to that value.  This function work on raw filenames
dnl (for instead it will considerate /usr//local and /usr/local as
dnl two distinct paths), you should really use adl_COMPUTE_REALTIVE_PATHS
dnl instead to have the paths sanitized automatically.
dnl
dnl For instance:
dnl    first_dir=/somewhere/on/my/disk/bin
dnl    second_dir=/somewhere/on/another/disk/share
dnl    adl_COMPUTE_RELATIVE_PATH(first_dir, second_dir, first_to_second)
dnl will set $first_to_second to '../../../another/disk/share'.
AC_DEFUN([adl_COMPUTE_RELATIVE_PATH],
[adl_COMPUTE_COMMON_PATH([$1], [$2], [_lcl_common_prefix])
adl_COMPUTE_BACK_PATH([$1], [_lcl_common_prefix], [_lcl_first_rel])
adl_COMPUTE_SUFFIX_PATH([$2], [_lcl_common_prefix], [_lcl_second_suffix])
$3="[$]_lcl_first_rel[$]_lcl_second_suffix"])

dnl adl_COMPUTE_COMMON_PATH(LEFT, RIGHT, RESULT)
dnl ============================================
dnl Compute the common path to $LEFT and $RIGHT and set the result to $RESULT.
dnl
dnl For instance:
dnl    first_path=/somewhere/on/my/disk/bin
dnl    second_path=/somewhere/on/another/disk/share
dnl    adl_COMPUTE_COMMON_PATH(first_path, second_path, common_path)
dnl will set $common_path to '/somewhere/on'.
AC_DEFUN([adl_COMPUTE_COMMON_PATH],
[$3=''
_lcl_second_prefix_match=''
while test "[$]_lcl_second_prefix_match" != 0; do
  _lcl_first_prefix=`expr "x[$]$1" : "x\([$]$3/*[[^/]]*\)"`
  _lcl_second_prefix_match=`expr "x[$]$2" : "x[$]_lcl_first_prefix"`
  if test "[$]_lcl_second_prefix_match" != 0; then
    if test "[$]_lcl_first_prefix" != "[$]$3"; then
      $3="[$]_lcl_first_prefix"
    else
      _lcl_second_prefix_match=0
    fi
  fi
done])

dnl adl_COMPUTE_SUFFIX_PATH(PATH, SUBPATH, RESULT)
dnl ==============================================
dnl Substrack $SUBPATH from $PATH, and set the resulting suffix
dnl (or the empty string if $SUBPATH is not a subpath of $PATH)
dnl to $RESULT.
dnl
dnl For instace:
dnl    first_path=/somewhere/on/my/disk/bin
dnl    second_path=/somewhere/on
dnl    adl_COMPUTE_SUFFIX_PATH(first_path, second_path, common_path)
dnl will set $common_path to '/my/disk/bin'.
AC_DEFUN([adl_COMPUTE_SUFFIX_PATH],
[$3=`expr "x[$]$1" : "x[$]$2/*\(.*\)"`])

dnl adl_COMPUTE_BACK_PATH(PATH, SUBPATH, RESULT)
dnl ============================================
dnl Compute the relative path to go from $PATH to $SUBPATH, knowing that
dnl $SUBPATH is a subpath of $PATH (any other words, only repeated '../'
dnl should be needed to move from $PATH to $SUBPATH) and set the value
dnl of $RESULT to that value.  If $SUBPATH is not a subpath of PATH,
dnl set $RESULT to the empty string.
dnl
dnl For instance:
dnl    first_path=/somewhere/on/my/disk/bin
dnl    second_path=/somewhere/on
dnl    adl_COMPUTE_BACK_PATH(first_path, second_path, back_path)
dnl will set $back_path to '../../../'.
AC_DEFUN([adl_COMPUTE_BACK_PATH],
[adl_COMPUTE_SUFFIX_PATH([$1], [$2], [_lcl_first_suffix])
$3=''
_lcl_tmp='xxx'
while test "[$]_lcl_tmp" != ''; do
  _lcl_tmp=`expr "x[$]_lcl_first_suffix" : "x[[^/]]*/*\(.*\)"`
  if test "[$]_lcl_first_suffix" != ''; then
     _lcl_first_suffix="[$]_lcl_tmp"
     $3="../[$]$3"
  fi
done])


dnl adl_RECURSIVE_EVAL(VALUE, RESULT)
dnl =================================
dnl Interpolate the VALUE in loop until it does not change,
dnl and set the result to $RESULT.
dnl WARNING: It is easy to get an infinite loop with some unsane input.
AC_DEFUN([adl_RECURSIVE_EVAL],
[_lcl_receval="$1"
$2=`(test "x$prefix" = xNONE && prefix="$ac_default_prefix"
     test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
     _lcl_receval_old=''
     while test "[$]_lcl_receval_old" != "[$]_lcl_receval"; do
       _lcl_receval_old="[$]_lcl_receval"
       eval _lcl_receval="\"[$]_lcl_receval\""
     done
     echo "[$]_lcl_receval")`])

dnl adl_NORMALIZE_DEFINE_UNQUOTED(var, DEFINE, REFERENCE_STRING)
AC_DEFUN([adl_NORMALIZE_DEFINE_UNQUOTED], [
  ac_ndu=[$]$1
  adl_NORMALIZE_PATH([ac_ndu], [$]$3)
  AC_DEFINE_UNQUOTED($2, "${ac_ndu}")
])

dnl adl_NORMALIZE_PATH_MSG(input_string, var, dir_separator)
dnl ========================================================
dnl call adl_NORMALIZE_PATH and format it for the result message
AC_DEFUN([adl_NORMALIZE_PATH_MSG], [
dnl replace /./ by /
$2=`echo "$1" | sed 's,/\./,/,g'`
adl_NORMALIZE_PATH([$2], [$3])
dnl replace \\ by \
$2=`echo "[$]$2" | sed 's,\\\\\\\\,\\\\,g'`
])


# Checking characteristics of compilers and other programs
# ===========================================================================
AC_CACHE_CHECK(whether preprocessor accepts -MM or -M,sdcc_cv_MM,
echo "#include <stdio.h>" >_test_.c
echo "" >>_test_.c
$CPP -v -MM _test_.c 1>&5 2>&5
if test "$?" = "0"; then
  sdcc_cv_MM="-MM"
else
  sdcc_cv_MM="-M"
fi
rm -f _test_.*)
M_OR_MM=$sdcc_cv_MM
AC_SUBST(M_OR_MM)

# This is the first time when CFLAGS are set/modified!!
adl_DD_COPT(CC, ggdb)
if test "$sdcc_cv_CCggdb" = "yes"; then
  CFLAGS="-ggdb ${CFLAGS}"
fi

adl_DD_COPT(CC, pipe)
if test "$sdcc_cv_CCpipe" = "yes"; then
  CFLAGS="-pipe $CFLAGS"
fi


# Checks for typedefs, structures, and compiler characteristics.
# ===========================================================================
AC_TYPE_SIGNAL

AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_C_CHAR_UNSIGNED

type_name()
{
  if expr "$ac_cv_sizeof_char" '>=' "$1" >/dev/null; then
      echo "char"
    exit
  fi
  if expr "$ac_cv_sizeof_short" '>=' "$1" >/dev/null; then
    echo "short"
    exit
  fi
  if expr "$ac_cv_sizeof_int" '>=' "$1" >/dev/null; then
    echo "int"
    exit
  fi
  if expr "$ac_cv_sizeof_long" '>=' "$1" >/dev/null; then
    echo "long"
    exit
  fi
  echo "long"
}

AC_MSG_CHECKING(type name for byte)
TYPE_CHAR=`type_name 1`
if test "$ac_cv_c_char_unsigned" = "yes"; then
  TYPE_BYTE="signed $TYPE_CHAR"
else
  TYPE_BYTE=$TYPE_CHAR
fi
AC_MSG_RESULT($TYPE_BYTE)
AC_MSG_CHECKING(type name for word)
TYPE_WORD=`type_name 2`
AC_MSG_RESULT($TYPE_WORD)
AC_MSG_CHECKING(type name for dword)
TYPE_DWORD=`type_name 4`
AC_MSG_RESULT($TYPE_DWORD)

AC_DEFINE_UNQUOTED(TYPE_BYTE,  $TYPE_BYTE)
AC_DEFINE_UNQUOTED(TYPE_WORD,  $TYPE_WORD)
AC_DEFINE_UNQUOTED(TYPE_DWORD, $TYPE_DWORD)

AC_DEFINE_UNQUOTED(TYPE_UBYTE,  unsigned $TYPE_CHAR)
AC_DEFINE_UNQUOTED(TYPE_UWORD,  unsigned $TYPE_WORD)
AC_DEFINE_UNQUOTED(TYPE_UDWORD, unsigned $TYPE_DWORD)


# SDCC_BUILD_BIGENDIAN ([ACTION-IF-TRUE], [ACTION-IF-FALSE], [ACTION-IF-UNKNOWN])
# -------------------------------------------------------------------------
AC_DEFUN([SDCC_BUILD_BIGENDIAN],
[AC_CACHE_CHECK(whether host machine byte ordering is bigendian, sdcc_cv_build_bigendian,
[# See if sys/param.h defines the BYTE_ORDER macro.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/types.h>
#include <sys/param.h>
],
[#if  ! (defined BYTE_ORDER && defined BIG_ENDIAN && defined LITTLE_ENDIAN \
        && BYTE_ORDER && BIG_ENDIAN && LITTLE_ENDIAN)
 bogus endian macros
#endif
])],
[# It does; now see whether it defined to BIG_ENDIAN or not.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/types.h>
#include <sys/param.h>
], [#if BYTE_ORDER != BIG_ENDIAN
 not big endian
#endif
])], [sdcc_cv_build_bigendian=yes], [sdcc_cv_build_bigendian=no])],
[# It does not; compile a test program.
AC_RUN_IFELSE(
[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[
  /* Are we little or big endian?  From Harbison&Steele.  */
  union
  {
    long int l;
    char c[sizeof (long int)];
  } u;
  u.l = 1;
  return u.c[sizeof (long int) - 1] == 1;
]])],
              [sdcc_cv_build_bigendian=no],
              [sdcc_cv_build_bigendian=yes],
[# try to guess the endianness by grepping values into an object file
  sdcc_cv_build_bigendian=unknown
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[short int ascii_mm[] = { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
short int ascii_ii[] = { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
void _ascii () { char *s = (char *) ascii_mm; s = (char *) ascii_ii; }
short int ebcdic_ii[] = { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
short int ebcdic_mm[] = { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
void _ebcdic () { char *s = (char *) ebcdic_mm; s = (char *) ebcdic_ii; }]],
[[ _ascii (); _ebcdic (); ]])],
[if grep BIGenDianSyS conftest.$ac_objext >/dev/null ; then
  sdcc_cv_build_bigendian=yes
fi
if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
  if test "$sdcc_cv_build_bigendian" = unknown; then
    sdcc_cv_build_bigendian=no
  else
    # finding both strings is unlikely to happen, but who knows?
    sdcc_cv_build_bigendian=unknown
  fi
fi])])])])
case $sdcc_cv_build_bigendian in
  yes)
    m4_default([$1],
      [AC_DEFINE([BUILD_WORDS_BIGENDIAN], 1,
        [Define to 1 if your processor stores words with the most significant
         byte first (like Motorola and SPARC, unlike Intel and VAX).])]) ;;
  no)
    $2 ;;
  *)
    m4_default([$3],
      [AC_MSG_ERROR([unknown endianness
presetting sdcc_cv_build_bigendian=no (or yes) will help])]) ;;
esac
])# SDCC_BUILD_BIGENDIAN

SDCC_BUILD_BIGENDIAN

# Set standard installation paths
# ===========================================================================

# In the Makefiles we need paths with '/' as directory separator, even if
# crosscompiling for Win32.
# And we want to preserve the macros (e.g. ${prefix}) in the Makefiles.
# The variables in the Makefiles are replaced by AC_SUBST()
#
# In sdccconf.h the '/' in paths can be replaced by "\\" (normalized), if
#
# The macros are expanded for the header.
# The variables in the header are replaced by AC_*DEFINE*()
# sdccconf_h_dir_separator contains a backslash.
AC_ARG_VAR([sdccconf_h_dir_separator], [needed in sdccconf.h: either "/" (default) or "\\"])
if test "x${sdccconf_h_dir_separator}" = "x"; then
    sdccconf_h_dir_separator="/"
fi

# Makefiles
###########

# LIB_TYPE:
# *nix default: "RANLIB"

AC_ARG_VAR([LIB_TYPE], [library type: LIB, SDCCLIB, AR or RANLIB (default)])
if test "${LIB_TYPE}" = ""; then
    LIB_TYPE="RANLIB"
fi

# include_dir_suffix:
# *nix default: "sdcc/include"

AC_ARG_VAR([include_dir_suffix], [appended to datadir to define SDCC's include directory])
if test "${include_dir_suffix}" = ""; then
    include_dir_suffix="sdcc/include"
fi

# lib_dir_suffix:
# *nix default: "sdcc/lib"
AC_ARG_VAR([lib_dir_suffix], [appended to datadir to define SDCC's library root directory])
if test "${lib_dir_suffix}" = ""; then
    lib_dir_suffix="sdcc/lib"
fi

# docdir:
# *nix default: "${datadir}/sdcc/doc"
AC_ARG_VAR([docdir], [documentation installation directory])
if test "${docdir}" = ""; then
    docdir="\${datadir}"/sdcc/doc
fi

AC_SUBST(EXEEXT)

# sdccconf.h
############

AC_DEFINE_UNQUOTED(DIR_SEPARATOR_STRING, "${sdccconf_h_dir_separator}")
AC_DEFINE_UNQUOTED(DIR_SEPARATOR_CHAR, '${sdccconf_h_dir_separator}')

# prefix:
# default: "NONE", ${ac_default_prefix}: "/usr/local"
adl_EXPAND(prefix, ac_default_prefix, expanded_prefix)
adl_NORMALIZE_DEFINE_UNQUOTED(expanded_prefix, PREFIX, sdccconf_h_dir_separator)

# exec_prefix:
# default: "${prefix}"
adl_EXPAND(exec_prefix, expanded_prefix, expanded_exec_prefix)
adl_NORMALIZE_DEFINE_UNQUOTED(expanded_exec_prefix, EXEC_PREFIX, sdccconf_h_dir_separator)

# bindir:
# default: "${exec_prefix}/bin"
adl_EXPAND(bindir, "NONE", expanded_bindir)
adl_NORMALIZE_DEFINE_UNQUOTED(expanded_bindir, BINDIR, sdccconf_h_dir_separator)

# datadir:
# default: "${prefix}/share"
adl_EXPAND(datadir, "NONE", expanded_datadir)
adl_NORMALIZE_DEFINE_UNQUOTED(expanded_datadir, DATADIR, sdccconf_h_dir_separator)

# include/lib suffix
norm_inc_dir_suffix=${include_dir_suffix}
adl_NORMALIZE_PATH([norm_inc_dir_suffix], [$sdccconf_h_dir_separator])
AC_DEFINE_UNQUOTED(INCLUDE_DIR_SUFFIX,
                   DIR_SEPARATOR_STRING "${norm_inc_dir_suffix}")
norm_lib_dir_suffix=${lib_dir_suffix}
adl_NORMALIZE_PATH([norm_lib_dir_suffix], [$sdccconf_h_dir_separator])
AC_DEFINE_UNQUOTED(LIB_DIR_SUFFIX,
                   DIR_SEPARATOR_STRING "${norm_lib_dir_suffix}")

# relative paths
adl_COMPUTE_RELATIVE_PATHS([expanded_bindir:expanded_datadir:bin2data_dir])
adl_NORMALIZE_PATH(bin2data_dir, [$sdccconf_h_dir_separator])
AC_DEFINE_UNQUOTED(BIN2DATA_DIR,
                   DIR_SEPARATOR_STRING "${bin2data_dir}")

adl_COMPUTE_RELATIVE_PATHS([expanded_prefix:expanded_bindir:prefix2bin_dir])
adl_NORMALIZE_PATH(prefix2bin_dir, [$sdccconf_h_dir_separator])
AC_DEFINE_UNQUOTED(PREFIX2BIN_DIR,
                   DIR_SEPARATOR_STRING "${prefix2bin_dir}")

adl_COMPUTE_RELATIVE_PATHS([expanded_prefix:expanded_datadir:prefix2data_dir])
adl_NORMALIZE_PATH(prefix2data_dir, [$sdccconf_h_dir_separator])
if test "${prefix2data_dir}" = "."; then
    # small optimization for Mingw32; otherwise Borut will complain ;-)
    AC_DEFINE_UNQUOTED(PREFIX2DATA_DIR, "")
else
    AC_DEFINE_UNQUOTED(PREFIX2DATA_DIR,
                       DIR_SEPARATOR_STRING "${prefix2data_dir}")
fi

# standard libs
AC_DEFINE_UNQUOTED(STD_LIB,       "libsdcc")
AC_DEFINE_UNQUOTED(STD_INT_LIB,   "libint")
AC_DEFINE_UNQUOTED(STD_LONG_LIB,  "liblong")
AC_DEFINE_UNQUOTED(STD_FP_LIB,    "libfloat")
AC_DEFINE_UNQUOTED(STD_DS390_LIB, "libds390")
AC_DEFINE_UNQUOTED(STD_DS400_LIB, "libds400")
AC_DEFINE_UNQUOTED(STD_XA51_LIB,  "libxa51")

# SDCC runtime environment variables
sdcc_dir_name="SDCC_HOME"
AC_DEFINE_UNQUOTED(SDCC_DIR_NAME, "${sdcc_dir_name}")

sdcc_include_name="SDCC_INCLUDE"
AC_DEFINE_UNQUOTED(SDCC_INCLUDE_NAME, "${sdcc_include_name}")

sdcc_lib_name="SDCC_LIB"
AC_DEFINE_UNQUOTED(SDCC_LIB_NAME, "${sdcc_lib_name}")

# Port selection helper
# ===========================================================================
# macro AC_DO_ENABLER()
#   $1 used to access enable_$1, e.g. enable_doc
#   $2 OPT_DISABLE_$2, normally uppercase of $1, e.g. DOC
#   $3 help string
AC_DEFUN([AC_DO_ENABLER], [
  AC_ARG_ENABLE($1, AC_HELP_STRING([--enable-$1], $3))

  if test "[$]enable_$1" = "yes"; then
    OPT_ENABLE_$2=1
  else
    OPT_ENABLE_$2=0
  fi

  AC_DEFINE_UNQUOTED(OPT_ENABLE_$2, [$]OPT_ENABLE_$2)
  AC_SUBST(OPT_ENABLE_$2)
])

# macro AC_DO_DISABLER()
#   $1 used to access disable_$1, e.g. ucsim
#   $2 OPT_DISABLE_$2, normally uppercase of $1, e.g. UCSIM
#   $3 help string
AC_DEFUN([AC_DO_DISABLER], [
  AC_ARG_ENABLE($1, AC_HELP_STRING([--disable-$1], $3))

  dnl the '-' in 'device-lib' needs special handling,
  dnl because the variable is 'enable_device_lib'
  arg1=`echo $1 | sed s/-/_/`

  if test "`eval echo \\$enable_$arg1`" = "no"; then
    OPT_DISABLE_$2=1
  else
    OPT_DISABLE_$2=0
  fi

  AC_DEFINE_UNQUOTED(OPT_DISABLE_$2, [$]OPT_DISABLE_$2)
  AC_SUBST(OPT_DISABLE_$2)
])

# macro AC_DO_PORT($1, $2, $3, $4)
#   $1 used to access enable_$2_port, e.g. gbz80
#   $2 port name in ports.all and ports.build, e.g. z80
#   $3 OPT_DISABLE_$3, normally uppercase of $2, e.g. GBZ80
#   $4 help string
AC_DEFUN([AC_DO_PORT], [
  AC_ARG_ENABLE($1-port,
                AC_HELP_STRING([--disable-$1-port], $4))

  if test "[$]enable_$1_port" = "no"; then
    OPT_DISABLE_$3=1
  else
    enable_$1_port="yes"
    OPT_DISABLE_$3=0
  fi

  AC_DEFINE_UNQUOTED(OPT_DISABLE_$3, [$]OPT_DISABLE_$3)
  AC_SUBST(OPT_DISABLE_$3)

  echo $2 >>ports.all
  if test [$]OPT_DISABLE_$3 = 0; then
    echo $2 >>ports.build
  fi
])

# Now handle the port selection
# ===========================================================================
rm -f ports.all ports.build
AC_DO_PORT(mcs51, mcs51, MCS51, [Excludes the Intel mcs51 port])
AC_DO_PORT(gbz80, z80,   GBZ80, [Excludes the Gameboy gbz80 port])
AC_DO_PORT(z80,   z80,   Z80,   [Excludes the z80 port])
AC_DO_PORT(avr,   avr,   AVR,   [Excludes the AVR port])
AC_DO_PORT(ds390, ds390, DS390, [Excludes the DS390 port])
AC_DEFINE_UNQUOTED(OPT_DISABLE_TININative, $OPT_DISABLE_DS390)
AC_DO_PORT(ds400, ds400, DS400, [Excludes the DS400 port])
AC_DO_PORT(pic,   pic,   PIC,   [Excludes the PIC port])
AC_DO_PORT(pic16, pic16, PIC16, [Excludes the PIC16 port])
AC_DO_PORT(xa51,  xa51,  XA51,  [Excludes the XA51 port])
AC_DO_PORT(hc08,  hc08,  HC08,  [Excludes the HC08 port])

AC_DO_DISABLER(ucsim,      UCSIM,      [Disables configuring and building of ucsim])
AC_DO_DISABLER(device-lib, DEVICE_LIB, [Disables building device libraries])
AC_DO_DISABLER(packihx,    PACKIHX,    [Disables building packihx])
AC_DO_DISABLER(sdcpp,      SDCPP,      [Disables building sdcpp])
AC_DO_DISABLER(sdcdb,      SDCDB,      [Disables building sdcdb])

AC_DO_ENABLER(doc,   DOC,   [Enables building the documentation])
AC_CHECK_PROG([LYX],        [lyx],        [lyx],        [:])
AC_CHECK_PROG([LATEX2HTML], [latex2html], [latex2html], [:])
AC_CHECK_PROG([PDFLATEX],   [pdflatex],   [pdflatex],   [:])
AC_CHECK_PROG([PDFOPT],     [pdfopt],     [pdfopt],     [:])
AC_CHECK_PROG([MAKEINDEX],  [makeindex],  [makeindex],  [:])

if test $OPT_ENABLE_DOC = 1; then
  SDCC_REQUIRE_PROG($LYX,        lyx)
  SDCC_REQUIRE_PROG($LATEX2HTML, latex2html)
  SDCC_REQUIRE_PROG($PDFLATEX,   pdflatex)
  SDCC_REQUIRE_PROG($PDFOPT,     pdfopt)
  SDCC_REQUIRE_PROG($MAKEINDEX,  makeindex)
fi

AC_DO_ENABLER(libgc, LIBGC, [Use the Bohem memory allocator. Lower runtime footprint.])
if test $OPT_ENABLE_LIBGC = 1; then
  AC_CHECK_LIB(gc, GC_malloc)
  if test $ac_cv_lib_gc_GC_malloc = no; then
    AC_MSG_ERROR([Cannot find library libgc with Bohem memory allocator.])
  fi
fi

#remove duplicates
uniq ports.all ports
mv ports ports.all
uniq ports.build ports
mv ports ports.build

# Generating output files
# ===========================================================================
test $OPT_DISABLE_SDCPP   = 0 && AC_CONFIG_SUBDIRS(support/cpp)
test $OPT_DISABLE_PACKIHX = 0 && AC_CONFIG_SUBDIRS(support/packihx)
test $OPT_DISABLE_UCSIM   = 0 && AC_CONFIG_SUBDIRS(sim/ucsim)
test $OPT_DISABLE_SDCDB   = 0 && AC_CONFIG_SUBDIRS(debugger/mcs51)
AC_CONFIG_FILES([doc/Makefile])

test $OPT_DISABLE_AVR = 0 && AC_CONFIG_FILES([src/avr/Makefile])

if test $OPT_DISABLE_DS390 = 0; then
  AC_CONFIG_FILES([src/ds390/Makefile])
  test $OPT_DISABLE_DEVICE_LIB = 0 && AC_CONFIG_FILES([device/lib/ds390/Makefile])
fi

if test $OPT_DISABLE_DS400 = 0; then
  AC_CONFIG_FILES([src/ds400/Makefile])
  test $OPT_DISABLE_DEVICE_LIB = 0 && AC_CONFIG_FILES([device/lib/ds400/Makefile])
fi

if test $OPT_DISABLE_HC08 = 0; then
  AC_CONFIG_FILES([src/hc08/Makefile
                   as/hc08/Makefile
                   as/link/hc08/Makefile])
  test $OPT_DISABLE_DEVICE_LIB = 0 && AC_CONFIG_FILES([device/lib/hc08/Makefile])
fi

if test $OPT_DISABLE_MCS51 = 0; then
  AC_CONFIG_FILES([src/mcs51/Makefile
                   as/mcs51/Makefile
                   as/link/mcs51/Makefile])
  test $OPT_DISABLE_DEVICE_LIB = 0 && AC_CONFIG_FILES([device/lib/mcs51/Makefile
                                                       device/lib/small/Makefile
                                                       device/lib/medium/Makefile
                                                       device/lib/large/Makefile])
fi

if test $OPT_DISABLE_PIC = 0; then
  AC_CONFIG_FILES(src/pic/Makefile)
  test $OPT_DISABLE_DEVICE_LIB = 0 && AC_CONFIG_SUBDIRS(device/lib/pic)
fi
if test $OPT_DISABLE_PIC16 = 0; then
  AC_CONFIG_FILES(src/pic16/Makefile)
  test $OPT_DISABLE_DEVICE_LIB = 0 && AC_CONFIG_SUBDIRS(device/lib/pic16)
fi

test $OPT_DISABLE_XA51 = 0 && AC_CONFIG_FILES([src/xa51/Makefile])

if test $OPT_DISABLE_Z80 = 0; then
  AC_CONFIG_FILES([src/z80/Makefile
                   as/Makefile
                   as/z80/Makefile
                   as/link/Makefile
                   as/link/z80/Makefile])
  test $OPT_DISABLE_DEVICE_LIB = 0 && AC_CONFIG_FILES([device/lib/z80/Makefile
                                                       device/lib/gbz80/Makefile])
fi

test $OPT_DISABLE_DEVICE_LIB = 0 && AC_CONFIG_FILES([device/lib/Makefile])

AC_CONFIG_FILES([main.mk:main_in.mk
src/Makefile
device/include/Makefile
as/asranlib/Makefile
support/librarian/Makefile
support/makebin/Makefile
support/regression/Makefile
support/valdiag/Makefile
Makefile
Makefile.common:Makefile.common.in
])
AC_OUTPUT

# I found no better place
mkdir -p bin

# Prepare result message
# ======================

# In the C-header we need \\ as dir-separator, but in the message only \
dirch=${sdccconf_h_dir_separator}
test ${dirch} = '\\' && dirch='\'

# calc friendly strings
adl_NORMALIZE_PATH_MSG(/${prefix2bin_dir},                         [binPath],  [$dirch])
adl_NORMALIZE_PATH_MSG(/${prefix2data_dir}/${norm_inc_dir_suffix}, [incPath1], [$dirch])
adl_NORMALIZE_PATH_MSG(/${bin2data_dir}/${norm_inc_dir_suffix},    [incPath2], [$dirch])
adl_NORMALIZE_PATH_MSG(${expanded_datadir}/${norm_inc_dir_suffix}, [incPath3], [$dirch])
adl_NORMALIZE_PATH_MSG(/${prefix2data_dir}/${norm_lib_dir_suffix}, [libPath1], [$dirch])
adl_NORMALIZE_PATH_MSG(/${bin2data_dir}/${norm_lib_dir_suffix},    [libPath2], [$dirch])
adl_NORMALIZE_PATH_MSG(${expanded_datadir}/${norm_lib_dir_suffix}, [libPath3], [$dirch])

AC_MSG_RESULT([
sdcc ${VERSION} is now configured for

  Build:                ${build_alias}
  Host:                 ${host_alias}
  Source directory:     ${srcdir}
  C compiler:           ${CC}
  CFLAGS:               ${CFLAGS}

  ENABLED Ports:
    avr                 ${enable_avr_port}
    ds390               ${enable_ds390_port}
    ds400               ${enable_ds400_port}
    gbz80               ${enable_gbz80_port}
    hc08                ${enable_hc08_port}
    mcs51               ${enable_mcs51_port}
    pic                 ${enable_pic_port}
    pic16               ${enable_pic16_port}
    xa51                ${enable_xa51_port}
    z80                 ${enable_z80_port}

  Disable packihx:      ${OPT_DISABLE_PACKIHX}
  Disable ucsim:        ${OPT_DISABLE_UCSIM}
  Disable device lib:   ${OPT_DISABLE_DEVICE_LIB}
  Disable sdcpp:        ${OPT_DISABLE_SDCPP}
  Disable sdcdb:        ${OPT_DISABLE_SDCDB}
  Enable documentation: ${OPT_ENABLE_DOC}
  Enable libgc:         ${OPT_ENABLE_LIBGC}

  Install paths:
    binary files:       ${exec_prefix}
    include files:      ${datadir}/${include_dir_suffix}
    library files:      ${datadir}/${lib_dir_suffix}
    documentation:      ${docdir}

    prefix:             ${prefix}
    datadir:            ${datadir}
    datarootdir:        ${datarootdir}

  Search paths (incomplete, see manual for all search paths):
    binary files:       \$SDCC_HOME${binPath}
    include files:      ${incPath1}
                        path(argv[[0]])${incPath2}
                        ${incPath3}
    library files:      \$SDCC_HOME${libPath1}${dirch}<model>
                        path(argv[[0]])${libPath2}${dirch}<model>
                        ${libPath3}${dirch}<model>
])
# End of configure/configure.in