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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
# This file is part of Oaklisp.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# The GNU GPL is available at http://www.gnu.org/licenses/gpl.html
# or from the Free Software Foundation, 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA
# Prologue
AC_PREREQ([2.69])
AC_INIT([Oaklisp],[1.3.7],[barak+oaklisp@pearlmutter.net],[oaklisp],[https://github.com/barak/oaklisp])
AC_CONFIG_SRCDIR([src/emulator/oaklisp.c])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([foreign subdir-objects -Wall])
# Process options
AC_MSG_CHECKING([enable_64bit])
AC_ARG_ENABLE([64bit],
[AS_HELP_STRING([--enable-64-bit],[use native 64-bit mode if available (default=no)])],,
[enable_64bit=no])
AC_MSG_RESULT([$enable_64bit])
AC_MSG_CHECKING([enable_docs])
AC_ARG_ENABLE([docs],
[AS_HELP_STRING([--enable-docs],[build and install LaTeX-format documentation (default=yes)])],,
[enable_docs=yes])
AC_MSG_RESULT([$enable_docs])
AM_CONDITIONAL([DOCS], [test x${enable_docs} = xyes])
AC_MSG_CHECKING([enable_ndebug])
AC_ARG_ENABLE([ndebug],
[AS_HELP_STRING([--enable-ndebug],[enable high speed disable debugging (default=yes)])],,
[enable_ndebug=yes])
AC_MSG_RESULT([$enable_ndebug])
AM_CONDITIONAL([NDEBUG], [test x${enable_ndebug} = xyes])
AC_MSG_CHECKING([enable_threads])
AC_ARG_ENABLE([threads],
[AS_HELP_STRING([--enable-threads],[enable thread support (default=no)])],,
[enable_threads=no])
AC_MSG_RESULT([$enable_threads])
AM_CONDITIONAL([ENABLE_THREADS], [test x${enable_threads} = xyes])
AC_MSG_CHECKING([with_world])
AC_ARG_WITH([world],
[AS_HELP_STRING([--with-world@<:@=WORLD@:>@],[for bootstrapping (default: searches)])],,
[with_world=check])
AC_MSG_RESULT([$with_world])
AC_MSG_CHECKING([with_oaklisp])
AC_ARG_WITH([oaklisp],
[AS_HELP_STRING([--with-oaklisp=OAKLISP],[for bootstrapping (default=no)])],,
[with_oaklisp=no])
AC_MSG_RESULT([$with_oaklisp])
AS_IF([test x${with_oaklisp} = xcheck || test x${with_oaklisp} = xyes],
[AC_PATH_PROG([with_oaklisp],
[oaklisp],
[AS_IF([test x${with_oaklisp} = xyes],
[AC_MSG_ERROR([no oaklisp executable found])],
[no])])])
AS_IF([test x${enable_64bit} = xyes],
[AC_MSG_WARN([64-bit support is experimental!])
eight_if_allowed=8],
[eight_if_allowed=6uuBsNCtBTXDAYKXc9i])
# Check if we are on a non-32bit-pointer memory model.
# If so, try to enable compiler options for a 32-bit memory model.
# For example, -m32 on x86_64 aka amd64.
# (This is easier than doing a 64-bit port!)
#
# This should go before any checks that actually invoke the compiler,
# so those tests will be in 32-bit mode. CFLAGS is passed to the
# linker, so the flag does not need to be set there, but it is
# included in a comment in case this ever changes.
#
# The options here are for GCC, but -m32 and -mx32 works on amd64 with
# clang, and others might as well.
AC_CHECK_SIZEOF([void *])
AS_CASE([${ac_cv_sizeof_void_p}],
[4],[AC_MSG_NOTICE([pointer size matches expectations])],
[${eight_if_allowed}],[AC_MSG_WARN([pointer size of 64-bit is experimental])],
[AC_MSG_WARN([non 32-bit pointer platform detected])
AC_MSG_NOTICE([trying to enable 32-bit memory model compiler option for ${host_cpu}])
AC_CANONICAL_HOST
AS_CASE([${host_cpu}],
[alpha*], [AC_MSG_ERROR([32-bit memory model unavailable on ${host_cpu}])],
[amd64* | x86_64], [flag32="-m32"],
[arm64*], [flag32="-mabi=ilp32"],
[ia64*], [flag32="-milp32"],
[mips64*], [flag32="-mabi=32"],
[powerpc64* | ppc64*], [flag32="-m32"],
[s390x*], [flag32="-m31"],
[sparc64*], [flag32="-m32"],
[flag32="-m32"
AC_MSG_WARN([non-32-bit host CPU ${host_cpu}])
AC_MSG_WARN([no 32-bit memory model option known, trying -m32])])
AC_MSG_NOTICE([compiler option for 32-bit memory model: ${flag32}])
CFLAGS="${CFLAGS} ${flag32}"
: LDFLAGS="${LDFLAGS} ${flag32}"
unset ac_cv_sizeof_void_p
AC_CHECK_SIZEOF([void *])
AS_CASE([${ac_cv_sizeof_void_p}],
[0],[AC_MSG_ERROR([bad flags, Indy])],
[4],[AC_MSG_NOTICE([32-bit memory model achieved])],
[AC_MSG_WARN([bad news, pointers are now ${ac_cv_sizeof_void_p} bytes])])])
# Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_SED
AC_CHECK_PROGS([INDENT],[indent],[true])
AS_IF([test x${enable_docs} = xyes],
[AC_CHECK_PROGS([LATEXMK],[latexmk],[false])])
# Checks for libraries.
AS_IF([test x$threads = xyes],
[AC_SEARCH_LIBS([pthread_create],[pthread])])
# Checks for header files.
AC_CHECK_HEADERS([stddef.h stdlib.h string.h sys/time.h unistd.h],,
[AC_MSG_ERROR([required header file unavailable])])
# Checks for typedefs, structures, and compiler characteristics.
AX_CFLAGS_WARN_ALL
AC_CHECK_HEADER_STDBOOL
AC_C_INLINE
AC_TYPE_INT8_T
AC_TYPE_INT16_T
AC_TYPE_INT32_T
AC_TYPE_INT64_T
AX_C_LONG_LONG
AC_TYPE_SIZE_T
AC_C_BIGENDIAN
AS_CASE([${ac_cv_c_bigendian}_${ac_cv_sizeof_void_p}],
[yes_4],[worldsubdir=eb32],
[no_4],[worldsubdir=el32],
[yes_8],[worldsubdir=eb64],
[no_8],[worldsubdir=el64],
[AC_MSG_WARN([no worldsubdir for current endianity and pointer length])])
# Actual scan for binary world find comes here rather than in option
# processing because we need to know endianity.
# snippet of code for other ways to find default oakworld.bin
# oaklisp --help | egrep -A1 '[-][-]world' | tail -n +2
AC_MSG_NOTICE([worldsubdir=${worldsubdir}])
AS_IF([test x${with_world} = xcheck || test x${with_world} = xyes],
[AC_MSG_CHECKING([possible locations for oakworld.bin])
f=$(ls $(pwd)/src/world/oakworld.bin \
$(pwd)/prebuilt/src/world/${worldsubdir}/oakworld.bin \
$(pwd)/prebuilt/src/world/oakworld.bin \
${HOME}/lib/oaklisp/oakworld.bin \
/usr/local/lib/oaklisp/oakworld.bin \
/usr/lib/oaklisp/oakworld.bin \
/usr/lib/*/oaklisp/oakworld.bin \
/lib/oaklisp/oakworld.bin \
/lib/*/oaklisp/oakworld.bin 2> /dev/null | head -1)
AC_MSG_RESULT([found ${f}])
AC_CHECK_FILE([${f}],
[with_world=${f}])])
AS_IF([test x${with_world} = xyes],
[AC_MSG_ERROR([no oakworld.bin found])])
AS_IF([test x${with_world} != xno && test x${with_world} != xcheck],
[AC_SUBST([OAKWORLDFLAGS],[--world=${with_world}])])
# Checks for library functions.
AC_FUNC_MALLOC
AC_FUNC_REALLOC
AC_CHECK_FUNCS([strerror],,
[AC_MSG_ERROR([required library function unavailable])])
AC_CHECK_FUNCS([GetTickCount getrusage gettimeofday clock])
# Epilogue
AC_CONFIG_FILES([Makefile
doc/Makefile
man/Makefile
src/Makefile
src/emulator/Makefile
src/world/Makefile
src/world/system-version.oak])
AC_OUTPUT
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