#                                               -*- Autoconf -*-

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

AC_PREREQ([2.67])

#AC_INIT([crosstool-NG], [hg], [crossgcc@sourceware.org])

AC_INIT([crosstool-NG], [m4_esyscmd_s([cat .version])], [crossgcc@sourceware.org])

AC_CONFIG_AUX_DIR([scripts])

#--------------------------------------------------------------------

# A few helper macros

# Check for required tool

AC_DEFUN(

    [ACX_CHECK_TOOL_REQ],

    [AC_CHECK_TOOLS([$1], [$2])

     AS_IF(

        [test -z "$$1"],

        [AC_MSG_ERROR([missing required tool: $2])])

    ])

# Check for required tool, set variable to full pathname

AC_DEFUN(

    [ACX_PATH_TOOL_REQ],

    [ACX_CHECK_TOOL_REQ([$1], [$2])

     AS_CASE(

        [$$1],

        [/*],,

        [?*],[AC_MSG_CHECKING([for absolute path to $$1])

              $1=$(which $$1)

              AC_MSG_RESULT([$$1])])])

# Check for required program

AC_DEFUN(

    [ACX_CHECK_PROGS_REQ],

    [AC_CHECK_PROGS([$1], [$2])

     AS_IF(

        [test -z "$$1"],

        [AC_MSG_ERROR([missing required tool: $2])])

    ])

# Check for path to required program

AC_DEFUN(

    [ACX_PATH_PROGS_REQ],

    [AC_PATH_PROGS([$1], [$2])

     AS_IF(

        [test -z "$$1"],

        [AC_MSG_ERROR([missing required tool: $2])])

    ])

# Set the kconfig option

AC_DEFUN(

    [ACX_SET_KCONFIG_OPTION],

    [AS_IF(

        [test -n "$$1"],

        [kconfig_options="$kconfig_options has_$1=y"],

        [kconfig_options="$kconfig_options has_$1"])

    ])

#--------------------------------------------------------------------

# Allow dummy --{en,dis}able-{static,shared}

AC_ARG_ENABLE(

    [local],

    [AS_HELP_STRING(

        [--enable-local],

        [don't install, and use current directory])])

AC_SUBST([enable_local], [${enable_local:-no}])

AC_ARG_ENABLE(

    [shared],

    [AS_HELP_STRING(

        [--enable-shared],

        [build shared libraries (default=yes) (ignored)])])

AC_ARG_ENABLE(

    [static],

    [AS_HELP_STRING(

        [--enable-static],

        [build static libraries (default=yes) (ignored)])])

#---------------------------------------------------------------------

# Check for --build and --host...

AC_CANONICAL_BUILD

AC_CANONICAL_HOST

# ... but refuse --target

AS_IF([test -n "$target_alias"],

      AC_MSG_ERROR([--target is not allowed]))

# Allow program name tranformation (--program-{prefix,suffix,transform-name})

AC_ARG_PROGRAM

#---------------------------------------------------------------------

# Initial checks that are usually done first (I don't know why, that's

# just what I seem to experience...)

#---------------------------------------------------------------------

AC_ARG_WITH([install],

    AS_HELP_STRING([--with-install=PATH],

                   [Specify the full PATH to a BSD-compatible install]),

    [INSTALL=$withval])

AC_PROG_INSTALL

AC_PROG_GREP

AC_PROG_EGREP

AS_IF(

    [test ! "$EGREP" = "$GREP -E"],

    [AC_MSG_ERROR([egrep is not $GREP -E])])

AC_CACHE_VAL([ac_cv_path_SED],

    [AC_ARG_WITH([sed],

        AS_HELP_STRING([--with-sed=PATH],

                       [Specify the full PATH to GNU sed]),

        [ac_cv_path_SED=$withval])])

AC_PROG_SED

AC_MSG_CHECKING([whether sed understands -r -i -e])

touch .ct-ng.sed.test

if ${SED} -r -i -e 's/foo/bar/' .ct-ng.sed.test >/dev/null 2>&1; then

    rm -f .ct-ng.sed.test

    AC_MSG_RESULT([yes])

else

    rm -f .ct-ng.sed.test

    AC_MSG_RESULT([no])

    AC_MSG_ERROR()

fi

AC_PROG_LN_S

#--------------------------------------------------------------------

# A bunch of boring tests...

#--------------------------------------------------------------------

AC_PROG_CC

AS_IF([test -z "$CC"],

      [AC_MSG_ERROR([no suitable compiler found])])

AC_PROG_CPP

# But we still need a way to specify the PATH to GNU versions (Damn MacOS)

AC_ARG_WITH([objcopy],

    AS_HELP_STRING([--with-objcopy=PATH],

                   [Specify the full PATH to GNU objcopy]),

    [OBJCOPY=$withval])

AC_ARG_WITH([objdump],

    AS_HELP_STRING([--with-objdump=PATH],

                   [Specify the full PATH to GNU objdump]),

    [OBJDUMP=$withval])

AC_ARG_WITH([ranlib],

    AS_HELP_STRING([--with-ranlib=PATH],

                   [Specify the full PATH to GNU ranlib]),

    [RANLIB=$withval])

AC_ARG_WITH([readelf],

    AS_HELP_STRING([--with-readelf=PATH],

                   [Specify the full PATH to GNU readelf]),

    [READELF=$withval])

AC_ARG_WITH([gperf],

    AS_HELP_STRING([--with-gperf=PATH],

                   [Specify the full PATH to GNU gperf]),

    [GPERF=$withval])

AC_PROG_RANLIB

ACX_PATH_TOOL_REQ([OBJCOPY], [objcopy])

ACX_PATH_TOOL_REQ([OBJDUMP], [objdump])

ACX_PATH_TOOL_REQ([READELF], [readelf])

ACX_PATH_TOOL_REQ([GPERF], [gperf])

ACX_CHECK_PROGS_REQ([bison], [bison])

ACX_CHECK_PROGS_REQ([flex], [flex])

ACX_CHECK_PROGS_REQ([makeinfo], [makeinfo])

ACX_CHECK_PROGS_REQ([cut], [cut])

ACX_CHECK_PROGS_REQ([stat], [stat])

ACX_CHECK_PROGS_REQ([readlink], [readlink])

ACX_CHECK_PROGS_REQ([wget], [wget])

ACX_CHECK_PROGS_REQ([tar], [tar])

ACX_CHECK_PROGS_REQ([gzip], [gzip])

ACX_CHECK_PROGS_REQ([bzip2], [bzip2])

#--------------------------------------------------------------------

# Still boring, but remember the path, now...

#--------------------------------------------------------------------

ACX_PATH_PROGS_REQ([PATCH], [patch])

#--------------------------------------------------------------------

# And a bunch of less boring tests...

#--------------------------------------------------------------------

# We need a bash that is >= 3.1

AC_CACHE_VAL([ac_cv_path__BASH],

    [AC_ARG_WITH([bash],

        AS_HELP_STRING([--with-bash=PATH],

                       [Specify the full PATH to GNU bash >= 3.1]),

        [ac_cv_path__BASH=$withval])])

AC_CACHE_CHECK([for bash >= 3.1], [ac_cv_path__BASH],

    [AC_PATH_PROGS_FEATURE_CHECK([_BASH], [bash],

        [[_BASH_ver=$($ac_path__BASH --version 2>&1 \

                     |$EGREP '^GNU bash, version (3\.[1-9]|4)')

          test -n "$_BASH_ver" && ac_cv_path__BASH=$ac_path__BASH ac_path__BASH_found=:]],

        [AC_MSG_RESULT([no])

         AC_MSG_ERROR([could not find bash >= 3.1])])])

AC_SUBST([_BASH], [$ac_cv_path__BASH])

# We need a awk that *is* GNU awk

AC_CACHE_VAL([ac_cv_path__AWK],

    [AC_ARG_WITH([awk],

        AS_HELP_STRING([--with-awk=PATH],

                       [Specify the full PATH to GNU awk]),

        [ac_cv_path__AWK=$withval])])

AC_CACHE_CHECK([for GNU awk], [ac_cv_path__AWK],

    [AC_PATH_PROGS_FEATURE_CHECK([_AWK], [awk gawk],

        [[_AWK_ver=$($ac_path__AWK --version 2>&1 \

                     |$EGREP '^GNU Awk ')

          test -n "$_AWK_ver" && ac_cv_path__AWK=$ac_path__AWK ac_path__AWK_found=:]],

        [AC_MSG_RESULT([no])

         AC_MSG_ERROR([could not find GNU awk])])])

AC_SUBST([_AWK], [$ac_cv_path__AWK])

#----------------------------------------

# Check for GNU make 3.80 or above

AC_CACHE_VAL([ac_cv_path_MAKE],

    [AC_ARG_WITH([make],

        AS_HELP_STRING([--with-make=PATH],

                       [Specify the full PATH to GNU make >= 3.80]),

        [ac_cv_path_MAKE=$withval])])

AC_CACHE_CHECK([for GNU make >= 3.80], [ac_cv_path_MAKE],

    [AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake],

        [[MAKE_ver=$($ac_path_MAKE --version 2>&1 \

                     |$EGREP '^GNU Make (3.[89][[:digit:]]|[4-9])')

          test -n "$MAKE_ver" && ac_cv_path_MAKE=$ac_path_MAKE ac_path_MAKE_found=:]],

        [AC_MSG_RESULT([no])

         AC_MSG_ERROR([could not find GNU make >= 3.80])])])

AC_SUBST([MAKE], [$ac_cv_path_MAKE])

AC_PROG_MAKE_SET

#----------------------------------------

# Check for libtool >= 1.5.26

AC_CACHE_VAL([ac_cv_path_LIBTOOL],

    [AC_ARG_WITH([libtool],

        AS_HELP_STRING([--with-libtool=PATH],

                       [Specify the full PATH to GNU libtool >= 1.5.26]),

        [ac_cv_path_LIBTOOL=$withval])])

AC_CACHE_CHECK([for GNU libtool >= 1.5.26], [ac_cv_path_LIBTOOL],

    [AC_PATH_PROGS_FEATURE_CHECK([LIBTOOL], [libtool],

        [[LIBTOOL_ver=$($ac_path_LIBTOOL --version 2>&1 \

                        |$EGREP '\(GNU libtool.*\) (2[[:digit:]]*\.|1\.6[[:digit:]]*\.|1\.5\.[2-9][[:digit:]]+)')

          test -n "$LIBTOOL_ver" && ac_cv_path_LIBTOOL=$ac_path_LIBTOOL ac_path_LIBTOOL_found=:]],

        [AC_MSG_RESULT([no])

         AC_MSG_ERROR([could not find GNU libtool >= 1.5.26])])])

AC_SUBST([LIBTOOL], [$ac_cv_path_LIBTOOL])

#----------------------------------------

# Check for libtoolize >= 1.5.26

AC_CACHE_VAL([ac_cv_path_LIBTOOLIZE],

    [AC_ARG_WITH([libtoolize],

        AS_HELP_STRING([--with-libtoolize=PATH],

                       [Specify the full PATH to GNU libtoolize >= 1.5.26]),

        [ac_cv_path_LIBTOOLIZE=$withval])])

AC_CACHE_CHECK([for GNU libtoolize >= 1.5.26], [ac_cv_path_LIBTOOLIZE],

    [AC_PATH_PROGS_FEATURE_CHECK([LIBTOOLIZE], [libtoolize],

        [[LIBTOOLIZE_ver=$($ac_path_LIBTOOLIZE --version 2>&1 \

                        |$EGREP '\(GNU libtool.*\) (2[[:digit:]]*\.|1\.6[[:digit:]]*\.|1\.5\.[2-9][[:digit:]]+)')

          test -n "$LIBTOOLIZE_ver" && ac_cv_path_LIBTOOLIZE=$ac_path_LIBTOOLIZE ac_path_LIBTOOLIZE_found=:]],

        [AC_MSG_RESULT([no])

         AC_MSG_ERROR([could not find GNU libtoolize >= 1.5.26])])])

AC_SUBST([LIBTOOLIZE], [$ac_cv_path_LIBTOOLIZE])

#----------------------------------------

# Check for automake >= 1.10

AC_CACHE_VAL([ac_cv_path_automake],

    [AC_ARG_WITH([automake],

        AS_HELP_STRING([--with-automake=PATH],

                       [Specify the full PATH to GNU automake >= 1.10]),

        [ac_cv_path_automake=$withval])])

AC_CACHE_CHECK([for GNU automake >= 1.10], [ac_cv_path_automake],

    [AC_PATH_PROGS_FEATURE_CHECK([automake], [automake],

        [[automake_ver=$($ac_path_automake --version 2>&1 \

                         |$EGREP '\(GNU automake\) (1\.[[:digit:]]{2,}|[2-9][[:digit:]]*\.)')

          test -n "$automake_ver" && ac_cv_path_automake=$ac_path_automake ac_path_automake_found=:]],

        [AC_MSG_RESULT([no])

         AC_MSG_ERROR([could not find GNU automake >= 1.10])])])

AC_SUBST([automake], [$ac_cv_path_automake])

#--------------------------------------------------------------------

# Boring again... But still a bit of work to do...

#--------------------------------------------------------------------

AC_SUBST([kconfig_options])

#----------------------------------------

AC_CHECK_PROGS([xz],   [xz])

ACX_SET_KCONFIG_OPTION([xz])

AS_IF(

    [test -z "$xz"],

    [AC_CHECK_PROGS([lzma], [lzma])])

ACX_SET_KCONFIG_OPTION([lzma])

#----------------------------------------

AC_CHECK_PROGS([cvs], [cvs])

ACX_SET_KCONFIG_OPTION([cvs])

#----------------------------------------

AC_CHECK_PROGS([svn], [svn])

ACX_SET_KCONFIG_OPTION([svn])

#--------------------------------------------------------------------

# Now, for some fun...

#--------------------------------------------------------------------

AC_C_INLINE

AC_HEADER_STDC

AC_FUNC_MALLOC

AC_FUNC_REALLOC

AC_FUNC_ALLOCA

#----------------------------------------

# Check for gettext, for the kconfig frontends

AC_SUBST([gettext])

AC_CHECK_HEADERS(

    [libintl.h],

    [ac_ct_gettext_hdr=$ac_header; break])

AS_IF(

    [test -n "$ac_ct_gettext_hdr"],

    [AC_CHECK_DECL(

        [gettext],

        [gettext=y],,

        [AC_INCLUDES_DEFAULT()

         #include <$ac_ct_gettext_hdr>])])

#----------------------------------------

# Check for ncurses, for the kconfig frontends

AC_SUBST([ac_ct_curses_hdr])

AC_CHECK_HEADERS(

    [ncurses/ncurses.h ncurses/curses.h ncursesw/curses.h ncurses.h curses.h],

    [ac_ct_curses_hdr=$ac_header; break])

AS_IF(

    [test -z "$ac_ct_curses_hdr"],

    [AC_MSG_ERROR([could not find curses header, required for the kconfig frontends])])

AC_SEARCH_LIBS(

    [initscr],

    [ncursesw ncurses curses],

    [ac_ct_curses_lib_found=yes; break])

AS_IF(

    [test -z "$ac_ct_curses_lib_found"],

    [AC_MSG_ERROR([could not find curses library, required for the kconfig frontends])])

#--------------------------------------------------------------------

# Lastly, take care of crosstool-NG internal values

#--------------------------------------------------------------------

# Hey! We need the date! :-)

AC_SUBST(

    [DATE],

    [$(date +%Y%m%d)])

# Decorate the version string if needed

AS_IF(

    [test -f version.sh -a -x version.sh],

    [V=$(./version.sh "${PACKAGE_VERSION}")])

AS_IF(

    [test -n "${V}"],

    [PACKAGE_VERSION="${V}"],

    [AS_CASE(

        [${PACKAGE_VERSION}],

        [hg|*+hg],

        [rev_id="$( hg log -r . --template '{branch}-{node|short}\n' \

                           2>/dev/null                               \

                    || true                                          )"

         PACKAGE_VERSION="${PACKAGE_VERSION}+${rev_id:-unknown-$( date +%Y%m%d.%H%M%S )}"

        ])])

# Arrange to have no / in the directory name, no need to create an

# arbitrarily deep directory structure

[PACKAGE_VERSION="$( printf "${PACKAGE_VERSION}\n" |"${SED}" -r -e 's:/+:_:g;' )"]

# Handle the local case

AC_SUBST([sublibdir])

AC_SUBST([subdocdir])

AS_IF(

    [test "x$enable_local" = "xyes"],

    [AC_MSG_NOTICE([overiding all of --prefix and the likes, because --enable-local was set])

     prefix=$(pwd)

     exec_prefix="$prefix"

     bindir="$prefix"

     libdir="$prefix"

     sublibdir=""

     docdir="$prefix""/docs"

     subdocdir=""

     datarootdir="$prefix"

     mandir="$docdir"],

    [sublibdir="/ct-ng.\${VERSION}"

     subdocdir="/ct-ng.\${VERSION}"])

#--------------------------------------------------------------------

# Finally, generate the output file(s)

#--------------------------------------------------------------------

AC_CONFIG_FILES([Makefile])

AC_OUTPUT