[deliverable/binutils-gdb.git] / libiberty / configure.ac

dnl Process this file with autoconf to produce a configure script

AC_PREREQ(2.59)
AC_INIT
AC_CONFIG_SRCDIR([xmalloc.c])

# This works around the fact that libtool configuration may change LD
# for this particular configuration, but some shells, instead of
# keeping the changes in LD private, export them just because LD is
# exported.  We don't use libtool yet, but some day we might, so...
ORIGINAL_LD_FOR_MULTILIBS=$LD

dnl We use these options to decide which functions to include.
AC_ARG_WITH(target-subdir,
[  --with-target-subdir=SUBDIR      Configuring in a subdirectory for target])
AC_ARG_WITH(build-subdir,
[  --with-build-subdir=SUBDIR       Configuring in a subdirectory for build])
AC_ARG_WITH(cross-host,
[  --with-cross-host=HOST           Configuring with a cross compiler])
AC_ARG_WITH(newlib,
[  --with-newlib                    Configuring with newlib])

if test "${srcdir}" = "."; then
  if test -n "${with_build_subdir}"; then
    libiberty_topdir="${srcdir}/../.."
    with_target_subdir=
  elif test -z "${with_target_subdir}"; then
    libiberty_topdir="${srcdir}/.."
  else
    if test "${with_target_subdir}" != "."; then
      libiberty_topdir="${srcdir}/${with_multisrctop}../.."
    else
      libiberty_topdir="${srcdir}/${with_multisrctop}.."
    fi
  fi
else
  libiberty_topdir="${srcdir}/.."
fi
AC_SUBST(libiberty_topdir)
AC_CONFIG_AUX_DIR($libiberty_topdir)

dnl Very limited version of automake's enable-maintainer-mode

AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  dnl maintainer-mode is disabled by default
  AC_ARG_ENABLE(maintainer-mode,
[  --enable-maintainer-mode
                          enable make rules and dependencies not useful
                          (and sometimes confusing) to the casual installer],
      maintainer_mode=$enableval,
      maintainer_mode=no)

AC_MSG_RESULT($maintainer_mode)

if test "$maintainer_mode" = "yes"; then
  MAINT=''
  NOTMAINT='#'
else
  MAINT='#'
  NOTMAINT=''
fi
AC_SUBST(MAINT)dnl
AC_SUBST(NOTMAINT)dnl

# Do we have a single-tree copy of texinfo?  Even if we do, we can't
# rely on it - libiberty is built before texinfo.
AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
if test "x$MAKEINFO" = "x"; then
    MAKEINFO="@echo makeinfo missing; true"
    BUILD_INFO=
else
    BUILD_INFO=info
    case "$MAKEINFO" in
      */missing\ makeinfo*)
	BUILD_INFO=
	AC_MSG_WARN([
*** Makeinfo is missing. Info documentation will not be built.])
        ;;
      *)
	case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
	  x*\ [[1-3]].* )
	    MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
	    BUILD_INFO=
	    AC_MSG_WARN([
*** Makeinfo is too old. Info documentation will not be built.])
	  ;;
	esac
	;;
    esac
fi
AC_SUBST(MAKEINFO)
AC_SUBST(BUILD_INFO)

AC_CHECK_PROG(PERL, perl, perl, )
if test x"$PERL" = x""; then
  HAVE_PERL='#'
else
  HAVE_PERL=''
fi
AC_SUBST(HAVE_PERL)

AC_CANONICAL_HOST

dnl When we start using automake:
dnl AM_INIT_AUTOMAKE(libiberty, 1.0)

dnl These must be called before AM_PROG_LIBTOOL, because it may want
dnl to call AC_CHECK_PROG.
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)

GCC_NO_EXECUTABLES
AC_PROG_CC
AC_PROG_CPP_WERROR

if test x$GCC = xyes; then
  ac_libiberty_warn_cflags='-W -Wall -Wtraditional -pedantic'
fi
AC_SUBST(ac_libiberty_warn_cflags)

AC_PROG_CC_C_O
# autoconf is lame and doesn't give us any substitution variable for this.
if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
  NO_MINUS_C_MINUS_O=yes
else
  OUTPUT_OPTION='-o $@'
fi
AC_SUBST(NO_MINUS_C_MINUS_O)
AC_SUBST(OUTPUT_OPTION)

AC_C_CONST
AC_C_INLINE
AC_C_BIGENDIAN_CROSS

dnl When we start using libtool:
dnl Default to a non shared library.  This may be overridden by the
dnl configure option --enable-shared.
dnl AM_DISABLE_SHARED

dnl When we start using libtool:
dnl AM_PROG_LIBTOOL

dnl When we start using automake:
dnl AM_CONFIG_HEADER(config.h:config.in)
AC_CONFIG_HEADER(config.h:config.in)

dnl When we start using automake:
dnl AM_MAINTAINER_MODE
dnl AC_EXEEXT

dnl When we start using automake:
dnl AM_PROG_INSTALL
AC_PROG_INSTALL

. ${srcdir}/config.table
host_makefile_frag=${frag}
AC_SUBST_FILE(host_makefile_frag)

# It's OK to check for header files.  Although the compiler may not be
# able to link anything, it had better be able to at least compile
# something.
AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h)
AC_HEADER_SYS_WAIT
AC_HEADER_TIME

libiberty_AC_DECLARE_ERRNO

# Determine the size of an int for struct fibnode.
AC_CHECK_SIZEOF([int])

AC_CHECK_TYPE(uintptr_t, unsigned long)

# Look for a 64-bit type.
AC_MSG_CHECKING([for a 64-bit type])
AC_CACHE_VAL(liberty_cv_uint64,
[AC_TRY_COMPILE(
[#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif],
[extern uint64_t foo;],
liberty_cv_uint64=uint64_t,
[AC_TRY_COMPILE(
[#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifndef CHAR_BIT
#define CHAR_BIT 8
#endif],
[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
liberty_cv_uint64="unsigned long",
[AC_TRY_COMPILE(
[#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifndef CHAR_BIT
#define CHAR_BIT 8
#endif],
[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
AC_MSG_RESULT($liberty_cv_uint64)
if test "$liberty_cv_uint64" != none; then
  AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
                     [Define to an unsigned 64-bit type available in the compiler.])
fi

# Given the above check, we always have uintptr_t or a fallback
# definition.  So define HAVE_UINTPTR_T in case any imported code
# relies on it.
AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])

AC_TYPE_PID_T

# This is the list of functions which libiberty will provide if they
# are not available on the host.

funcs="asprintf"
funcs="$funcs atexit"
funcs="$funcs basename"
funcs="$funcs bcmp"
funcs="$funcs bcopy"
funcs="$funcs bsearch"
funcs="$funcs bzero"
funcs="$funcs calloc"
funcs="$funcs clock"
funcs="$funcs ffs"
funcs="$funcs getcwd"
funcs="$funcs getpagesize"
funcs="$funcs index"
funcs="$funcs insque"
funcs="$funcs memchr"
funcs="$funcs memcmp"
funcs="$funcs memcpy"
funcs="$funcs memmove"
funcs="$funcs mempcpy"
funcs="$funcs memset"
funcs="$funcs mkstemps"
funcs="$funcs putenv"
funcs="$funcs random"
funcs="$funcs rename"
funcs="$funcs rindex"
funcs="$funcs setenv"
funcs="$funcs snprintf"
funcs="$funcs sigsetmask"
funcs="$funcs stpcpy"
funcs="$funcs stpncpy"
funcs="$funcs strcasecmp"
funcs="$funcs strchr"
funcs="$funcs strdup"
funcs="$funcs strncasecmp"
funcs="$funcs strrchr"
funcs="$funcs strstr"
funcs="$funcs strtod"
funcs="$funcs strtol"
funcs="$funcs strtoul"
funcs="$funcs tmpnam"
funcs="$funcs vasprintf"
funcs="$funcs vfprintf"
funcs="$funcs vprintf"
funcs="$funcs vsnprintf"
funcs="$funcs vsprintf"
funcs="$funcs waitpid"

# Also in the old function.def file: alloca, vfork, getopt.

vars="sys_errlist sys_nerr sys_siglist"

checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
checkfuncs="$checkfuncs getsysinfo table sysctl"

# These are neither executed nor required, but they help keep
# autoheader happy without adding a bunch of text to acconfig.h.
if test "x" = "y"; then
  AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
  getcwd getpagesize index insque mkstemps memchr memcmp memcpy \
  memmove mempcpy memset putenv random rename rindex sigsetmask \
  strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strrchr strstr \
  strtod strtol strtoul tmpnam vasprintf vfprintf vprintf \
  vsprintf waitpid getrusage on_exit psignal strerror strsignal \
  sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
  pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl \
  realpath canonicalize_file_name)
  AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
  AC_DEFINE(HAVE_SYS_NERR,    1, [Define if you have the sys_nerr variable.])
  AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
fi

# For each of these functions, if the host does not provide the
# function we want to put FN.o in LIBOBJS, and if the host does
# provide the function, we want to define HAVE_FN in config.h.

setobjs=
CHECK=
target_header_dir=
if test -n "${with_target_subdir}"; then

  # We are being configured as a target library.  AC_REPLACE_FUNCS
  # may not work correctly, because the compiler may not be able to
  # link executables.  Note that we may still be being configured
  # native.

  # If we are being configured for newlib, we know which functions
  # newlib provide and which ones we will be expected to provide.

  if test "x${with_newlib}" = "xyes"; then
    AC_LIBOBJ([asprintf])
    AC_LIBOBJ([basename])
    AC_LIBOBJ([insque])
    AC_LIBOBJ([random])
    AC_LIBOBJ([strdup])
    AC_LIBOBJ([vasprintf])

    for f in $funcs; do
      case "$f" in
	asprintf | basename | insque | random | strdup | vasprintf)
	  ;;
	*)
	  n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
	  AC_DEFINE_UNQUOTED($n)
	  ;;
      esac
    done

    # newlib doesnt provide any of the variables in $vars, so we
    # dont have to check them here.

    # Of the functions in $checkfuncs, newlib only has strerror.
    AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)

    setobjs=yes

  fi

  # We may wish to install the target headers somewhere.
  AC_ARG_ENABLE(install-libiberty,
  [  --enable-install-libiberty       Install headers for end users],
  enable_install_libiberty=$enableval,
  enable_install_libiberty=no)dnl
  
  # Option parsed, now set things appropriately.
  case x"$enable_install_libiberty" in
    xyes|x)
      target_header_dir=libiberty
      ;;
    xno)   
      target_header_dir=
      ;;
    *) 
      # This could be sanity-checked in various ways...
      target_header_dir="${enable_install_libiberty}"
      ;;
  esac


else

   # Not a target library, so we set things up to run the test suite.
   CHECK=check-cplus-dem

fi

AC_SUBST(CHECK)
AC_SUBST(target_header_dir)

case "${host}" in
  *-*-cygwin* | *-*-mingw*)
    AC_DEFINE_NOAUTOHEADER(HAVE_SYS_ERRLIST)
    AC_DEFINE_NOAUTOHEADER(HAVE_SYS_NERR)
    ;;
esac

if test -z "${setobjs}"; then
  case "${host}" in

  *-*-vxworks*)
    # Handle VxWorks configuration specially, since on VxWorks the
    # libraries are actually on the target board, not in the file
    # system.
    AC_LIBOBJ([basename])
    AC_LIBOBJ([getpagesize])
    AC_LIBOBJ([insque])
    AC_LIBOBJ([random])
    AC_LIBOBJ([strcasecmp])
    AC_LIBOBJ([strncasecmp])
    AC_LIBOBJ([strdup])
    AC_LIBOBJ([vfork])
    AC_LIBOBJ([waitpid])
    AC_LIBOBJ([vasprintf])
    for f in $funcs; do
      case "$f" in
	basename | getpagesize | insque | random | strcasecmp)
	  ;;
	strncasecmp | strdup | vfork | waitpid | vasprintf)
	  ;;
	*)
	  n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
	  AC_DEFINE_UNQUOTED($n)
	  ;;
      esac
    done

    # VxWorks doesn't provide any of the variables in $vars, so we
    # don't have to check them here.

    # Of the functions in $checkfuncs, VxWorks only has strerror.
    AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)

    setobjs=yes
    ;;

  esac
fi

if test -z "${setobjs}"; then

  case "${host}" in

  *-*-cygwin*)
    # The Cygwin library actually uses a couple of files from
    # libiberty when it is built.  If we are building a native
    # Cygwin, and we run the tests, we will appear to have these
    # files.  However, when we go on to build winsup, we will wind up
    # with a library which does not have the files, since they should
    # have come from libiberty.

    # We handle this by removing the functions the winsup library
    # provides from our shell variables, so that they appear to be
    # missing.

    # DJ - only if we're *building* cygwin, not just building *with* cygwin
  
    if test -n "${with_target_subdir}"
    then
      funcs="`echo $funcs | sed -e 's/random//'`"
      AC_LIBOBJ([random])
      vars="`echo $vars | sed -e 's/sys_siglist//'`"
      checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
    fi
    ;;

  *-*-mingw32*)
    # Under mingw32, sys_nerr and sys_errlist exist, but they are
    # macros, so the test below won't find them.
    libiberty_cv_var_sys_nerr=yes
    libiberty_cv_var_sys_errlist=yes
    ;;

  *-*-uwin*)
    # Under some versions of uwin, vfork is notoriously buggy and the test 
    # can hang configure; on other versions, vfork exists just as a stub.
    # FIXME: This should be removed once vfork in uwin's runtime is fixed.
    ac_cv_func_vfork_works=no
    # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
    # macros (actually, these are imported from a DLL, but the end effect 
    # is the same), so the test below won't find them.
    libiberty_cv_var_sys_nerr=yes
    libiberty_cv_var_sys_errlist=yes
    ;;

  *-*-*vms*)
    # Under VMS, vfork works very different than on Unix. The standard test 
    # won't work, and it isn't easily adaptable. It makes more sense to
    # just force it.
    ac_cv_func_vfork_works=yes
    ;;

  esac

  # We haven't set the list of objects yet.  Use the standard autoconf
  # tests.  This will only work if the compiler works.
  AC_ISC_POSIX
  AC_REPLACE_FUNCS($funcs)
  libiberty_AC_FUNC_C_ALLOCA
  AC_FUNC_FORK
  if test $ac_cv_func_vfork_works = no; then
    AC_LIBOBJ([vfork])
  fi
  # We only need _doprnt if we might use it to implement v*printf.
  if test $ac_cv_func_vprintf != yes \
     || test $ac_cv_func_vfprintf != yes \
     || test $ac_cv_func_vsprintf != yes; then
    AC_REPLACE_FUNCS(_doprnt)
  else
    AC_CHECK_FUNCS(_doprnt)
  fi

  for v in $vars; do
    AC_MSG_CHECKING([for $v])
    AC_CACHE_VAL(libiberty_cv_var_$v,
      [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
		      [eval "libiberty_cv_var_$v=yes"],
		      [eval "libiberty_cv_var_$v=no"])])
    if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
      AC_MSG_RESULT(yes)
      n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
      AC_DEFINE_UNQUOTED($n)
    else
      AC_MSG_RESULT(no)
    fi
  done

  # special check for _system_configuration because AIX <4.3.2 do not
  # contain the `physmem' member.
  AC_MSG_CHECKING([for external symbol _system_configuration])
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
			[[double x = _system_configuration.physmem;]])],
    [AC_MSG_RESULT([yes])
    AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
	      [Define if you have the _system_configuration variable.])],
    [AC_MSG_RESULT([no])])

  AC_CHECK_FUNCS($checkfuncs)
  libiberty_NEED_DECLARATION(canonicalize_file_name)
fi

# Figure out which version of pexecute to use.
case "${host}" in
     *-*-mingw* | *-*-winnt*)	pexecute=./pex-win32.o  ;;
     *-*-msdosdjgpp*)		pexecute=./pex-djgpp.o  ;;
     *-*-msdos*)		pexecute=./pex-msdos.o  ;;
     *-*-os2-emx*)		pexecute=./pex-os2.o    ;;
     *)				pexecute=./pex-unix.o   ;;
esac
AC_SUBST(pexecute)

libiberty_AC_FUNC_STRNCMP

# Install a library built with a cross compiler in $(tooldir) rather
# than $(libdir).
if test -z "${with_cross_host}"; then
  INSTALL_DEST=libdir
else
  INSTALL_DEST=tooldir
fi
AC_SUBST(INSTALL_DEST)

m4_pattern_allow(LIBOBJS)
L=""
for l in x $LIBOBJS; do
  case $l in
    x) ;;
    *) L="$L ./$l" ;;
  esac
done
LIBOBJS="$L"

# We need multilib support, but only if configuring for the target.
AC_CONFIG_FILES([Makefile testsuite/Makefile])
AC_CONFIG_COMMANDS([default],
  [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
if test -n "$CONFIG_FILES"; then
  if test -n "${with_target_subdir}"; then
    # FIXME: We shouldn't need to set ac_file
    ac_file=Makefile
    LD="${ORIGINAL_LD_FOR_MULTILIBS}"
    . ${libiberty_topdir}/config-ml.in
  fi
fi]],
[[srcdir=${srcdir}
host=${host}
target=${target}
with_target_subdir=${with_target_subdir}
with_multisubdir=${with_multisubdir}
ac_configure_args="--enable-multilib ${ac_configure_args}"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
libiberty_topdir=${libiberty_topdir}
]])
AC_OUTPUT
Commit	Line	Data
1a79b024 DD	1	dnl Process this file with autoconf to produce a configure script
1a79b024 DD	2
85f969cd DD	3	AC_PREREQ(2.59)
	4	AC_INIT
	5	AC_CONFIG_SRCDIR([xmalloc.c])
1a79b024 DD	6
	7	# This works around the fact that libtool configuration may change LD
	8	# for this particular configuration, but some shells, instead of
	9	# keeping the changes in LD private, export them just because LD is
	10	# exported. We don't use libtool yet, but some day we might, so...
	11	ORIGINAL_LD_FOR_MULTILIBS=$LD
	12
	13	dnl We use these options to decide which functions to include.
	14	AC_ARG_WITH(target-subdir,
	15	[ --with-target-subdir=SUBDIR Configuring in a subdirectory for target])
	16	AC_ARG_WITH(build-subdir,
	17	[ --with-build-subdir=SUBDIR Configuring in a subdirectory for build])
	18	AC_ARG_WITH(cross-host,
	19	[ --with-cross-host=HOST Configuring with a cross compiler])
	20	AC_ARG_WITH(newlib,
	21	[ --with-newlib Configuring with newlib])
	22
	23	if test "${srcdir}" = "."; then
	24	if test -n "${with_build_subdir}"; then
	25	libiberty_topdir="${srcdir}/../.."
	26	with_target_subdir=
	27	elif test -z "${with_target_subdir}"; then
	28	libiberty_topdir="${srcdir}/.."
	29	else
	30	if test "${with_target_subdir}" != "."; then
	31	libiberty_topdir="${srcdir}/${with_multisrctop}../.."
	32	else
	33	libiberty_topdir="${srcdir}/${with_multisrctop}.."
	34	fi
	35	fi
	36	else
	37	libiberty_topdir="${srcdir}/.."
	38	fi
	39	AC_SUBST(libiberty_topdir)
	40	AC_CONFIG_AUX_DIR($libiberty_topdir)
	41
	42	dnl Very limited version of automake's enable-maintainer-mode
	43
	44	AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
	45	dnl maintainer-mode is disabled by default
	46	AC_ARG_ENABLE(maintainer-mode,
	47	[ --enable-maintainer-mode
	48	enable make rules and dependencies not useful
	49	(and sometimes confusing) to the casual installer],
	50	maintainer_mode=$enableval,
	51	maintainer_mode=no)
	52
	53	AC_MSG_RESULT($maintainer_mode)
	54
	55	if test "$maintainer_mode" = "yes"; then
	56	MAINT=''
	57	NOTMAINT='#'
	58	else
	59	MAINT='#'
	60	NOTMAINT=''
	61	fi
	62	AC_SUBST(MAINT)dnl
	63	AC_SUBST(NOTMAINT)dnl
	64
	65	# Do we have a single-tree copy of texinfo? Even if we do, we can't
	66	# rely on it - libiberty is built before texinfo.
	67	AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
	68	if test "x$MAKEINFO" = "x"; then
	69	MAKEINFO="@echo makeinfo missing; true"
70	BUILD_INFO=
71	else
72	BUILD_INFO=info
73	case "$MAKEINFO" in
74	/missing\ makeinfo)
75	BUILD_INFO=
76	AC_MSG_WARN([
77	*** Makeinfo is missing. Info documentation will not be built.])
78	;;
79	*)
80	case x"`$MAKEINFO --version \| grep 'GNU texinfo'`" in
81	x\ [[1-3]]. )
82	MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
83	BUILD_INFO=
84	AC_MSG_WARN([
85	*** Makeinfo is too old. Info documentation will not be built.])
86	;;
87	esac
88	;;
89	esac
90	fi
91	AC_SUBST(MAKEINFO)
92	AC_SUBST(BUILD_INFO)
93
94	AC_CHECK_PROG(PERL, perl, perl, )
95	if test x"$PERL" = x""; then
96	HAVE_PERL='#'
97	else
98	HAVE_PERL=''
99	fi
100	AC_SUBST(HAVE_PERL)
101
102	AC_CANONICAL_HOST
103
104	dnl When we start using automake:
105	dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
106
107	dnl These must be called before AM_PROG_LIBTOOL, because it may want
108	dnl to call AC_CHECK_PROG.
109	AC_CHECK_TOOL(AR, ar)
110	AC_CHECK_TOOL(RANLIB, ranlib, :)
111
112	GCC_NO_EXECUTABLES
113	AC_PROG_CC
114	AC_PROG_CPP_WERROR
115
116	if test x$GCC = xyes; then
117	ac_libiberty_warn_cflags='-W -Wall -Wtraditional -pedantic'
118	fi
119	AC_SUBST(ac_libiberty_warn_cflags)
120
46a10049 DD	121	AC_PROG_CC_C_O
	122	# autoconf is lame and doesn't give us any substitution variable for this.
	123	if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
	124	NO_MINUS_C_MINUS_O=yes
	125	else
	126	OUTPUT_OPTION='-o $@'
	127	fi
	128	AC_SUBST(NO_MINUS_C_MINUS_O)
	129	AC_SUBST(OUTPUT_OPTION)
	130
1a79b024 DD	131	AC_C_CONST
	132	AC_C_INLINE
	133	AC_C_BIGENDIAN_CROSS
	134
46a10049	135	dnl When we start using libtool:
1a79b024 DD	136	dnl Default to a non shared library. This may be overridden by the
1a79b024 DD	137	dnl configure option --enable-shared.
46a10049	138	dnl AM_DISABLE_SHARED
1a79b024	139
46a10049 DD	140	dnl When we start using libtool:
46a10049 DD	141	dnl AM_PROG_LIBTOOL
1a79b024 DD	142
	143	dnl When we start using automake:
	144	dnl AM_CONFIG_HEADER(config.h:config.in)
	145	AC_CONFIG_HEADER(config.h:config.in)
	146
	147	dnl When we start using automake:
	148	dnl AM_MAINTAINER_MODE
	149	dnl AC_EXEEXT
	150
	151	dnl When we start using automake:
	152	dnl AM_PROG_INSTALL
	153	AC_PROG_INSTALL
	154
	155	. ${srcdir}/config.table
	156	host_makefile_frag=${frag}
	157	AC_SUBST_FILE(host_makefile_frag)
	158
	159	# It's OK to check for header files. Although the compiler may not be
	160	# able to link anything, it had better be able to at least compile
	161	# something.
bb6a587d	162	AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h)
1a79b024 DD	163	AC_HEADER_SYS_WAIT
	164	AC_HEADER_TIME
	165
	166	libiberty_AC_DECLARE_ERRNO
	167
40a59a4c DD	168	# Determine the size of an int for struct fibnode.
	169	AC_CHECK_SIZEOF([int])
	170
1a79b024	171	AC_CHECK_TYPE(uintptr_t, unsigned long)
bb6a587d DD	172
	173	# Look for a 64-bit type.
	174	AC_MSG_CHECKING([for a 64-bit type])
	175	AC_CACHE_VAL(liberty_cv_uint64,
	176	[AC_TRY_COMPILE(
	177	[#ifdef HAVE_STDINT_H
	178	#include <stdint.h>
	179	#endif],
	180	[extern uint64_t foo;],
	181	liberty_cv_uint64=uint64_t,
	182	[AC_TRY_COMPILE(
	183	[#ifdef HAVE_LIMITS_H
	184	#include <limits.h>
	185	#endif
	186	#ifndef CHAR_BIT
	187	#define CHAR_BIT 8
	188	#endif],
	189	[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
	190	liberty_cv_uint64="unsigned long",
	191	[AC_TRY_COMPILE(
	192	[#ifdef HAVE_LIMITS_H
	193	#include <limits.h>
	194	#endif
	195	#ifndef CHAR_BIT
	196	#define CHAR_BIT 8
	197	#endif],
	198	[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
	199	liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
	200	AC_MSG_RESULT($liberty_cv_uint64)
	201	if test "$liberty_cv_uint64" != none; then
7e9f5c71 DD	202	AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
7e9f5c71 DD	203	[Define to an unsigned 64-bit type available in the compiler.])
bb6a587d DD	204	fi
bb6a587d DD	205
1a79b024 DD	206	# Given the above check, we always have uintptr_t or a fallback
	207	# definition. So define HAVE_UINTPTR_T in case any imported code
	208	# relies on it.
	209	AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
	210
	211	AC_TYPE_PID_T
	212
	213	# This is the list of functions which libiberty will provide if they
	214	# are not available on the host.
	215
	216	funcs="asprintf"
	217	funcs="$funcs atexit"
	218	funcs="$funcs basename"
	219	funcs="$funcs bcmp"
	220	funcs="$funcs bcopy"
	221	funcs="$funcs bsearch"
	222	funcs="$funcs bzero"
	223	funcs="$funcs calloc"
	224	funcs="$funcs clock"
	225	funcs="$funcs ffs"
	226	funcs="$funcs getcwd"
	227	funcs="$funcs getpagesize"
	228	funcs="$funcs index"
	229	funcs="$funcs insque"
	230	funcs="$funcs memchr"
	231	funcs="$funcs memcmp"
	232	funcs="$funcs memcpy"
	233	funcs="$funcs memmove"
	234	funcs="$funcs mempcpy"
	235	funcs="$funcs memset"
	236	funcs="$funcs mkstemps"
	237	funcs="$funcs putenv"
	238	funcs="$funcs random"
	239	funcs="$funcs rename"
	240	funcs="$funcs rindex"
	241	funcs="$funcs setenv"
	242	funcs="$funcs snprintf"
	243	funcs="$funcs sigsetmask"
	244	funcs="$funcs stpcpy"
	245	funcs="$funcs stpncpy"
	246	funcs="$funcs strcasecmp"
	247	funcs="$funcs strchr"
	248	funcs="$funcs strdup"
	249	funcs="$funcs strncasecmp"
	250	funcs="$funcs strrchr"
	251	funcs="$funcs strstr"
	252	funcs="$funcs strtod"
	253	funcs="$funcs strtol"
	254	funcs="$funcs strtoul"
	255	funcs="$funcs tmpnam"
	256	funcs="$funcs vasprintf"
	257	funcs="$funcs vfprintf"
	258	funcs="$funcs vprintf"
	259	funcs="$funcs vsnprintf"
	260	funcs="$funcs vsprintf"
	261	funcs="$funcs waitpid"
	262
	263	# Also in the old function.def file: alloca, vfork, getopt.
	264
	265	vars="sys_errlist sys_nerr sys_siglist"
	266
	267	checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
	268	checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
	269	checkfuncs="$checkfuncs getsysinfo table sysctl"
270
271	# These are neither executed nor required, but they help keep
272	# autoheader happy without adding a bunch of text to acconfig.h.
273	if test "x" = "y"; then
274	AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
275	getcwd getpagesize index insque mkstemps memchr memcmp memcpy \
276	memmove mempcpy memset putenv random rename rindex sigsetmask \
277	strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strrchr strstr \
278	strtod strtol strtoul tmpnam vasprintf vfprintf vprintf \
279	vsprintf waitpid getrusage on_exit psignal strerror strsignal \
280	sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
281	pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl \
282	realpath canonicalize_file_name)
283	AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
284	AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
285	AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
286	fi
287
288	# For each of these functions, if the host does not provide the
289	# function we want to put FN.o in LIBOBJS, and if the host does
290	# provide the function, we want to define HAVE_FN in config.h.
291
292	setobjs=
293	CHECK=
294	target_header_dir=
295	if test -n "${with_target_subdir}"; then
296
297	# We are being configured as a target library. AC_REPLACE_FUNCS
298	# may not work correctly, because the compiler may not be able to
299	# link executables. Note that we may still be being configured
300	# native.
301
302	# If we are being configured for newlib, we know which functions
303	# newlib provide and which ones we will be expected to provide.
304
305	if test "x${with_newlib}" = "xyes"; then
306	AC_LIBOBJ([asprintf])
307	AC_LIBOBJ([basename])
308	AC_LIBOBJ([insque])
309	AC_LIBOBJ([random])
310	AC_LIBOBJ([strdup])
311	AC_LIBOBJ([vasprintf])
312
313	for f in $funcs; do
314	case "$f" in
315	asprintf \| basename \| insque \| random \| strdup \| vasprintf)
316	;;
317	*)
318	n=HAVE_`echo $f \| tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
319	AC_DEFINE_UNQUOTED($n)
320	;;
321	esac
322	done
323
324	# newlib doesnt provide any of the variables in $vars, so we
325	# dont have to check them here.
326
327	# Of the functions in $checkfuncs, newlib only has strerror.
328	AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
329
330	setobjs=yes
331
332	fi
333
334	# We may wish to install the target headers somewhere.
335	AC_ARG_ENABLE(install-libiberty,
336	[ --enable-install-libiberty Install headers for end users],
337	enable_install_libiberty=$enableval,
338	enable_install_libiberty=no)dnl
339
340	# Option parsed, now set things appropriately.
341	case x"$enable_install_libiberty" in
342	xyes\|x)
343	target_header_dir=libiberty
344	;;
345	xno)
346	target_header_dir=
347	;;
348	*)
349	# This could be sanity-checked in various ways...
350	target_header_dir="${enable_install_libiberty}"
351	;;
352	esac
353
354
355	else
356
357	# Not a target library, so we set things up to run the test suite.
358	CHECK=check-cplus-dem
359
360	fi
361
362	AC_SUBST(CHECK)
363	AC_SUBST(target_header_dir)
364
365	case "${host}" in
366	--cygwin* \| --mingw*)
367	AC_DEFINE_NOAUTOHEADER(HAVE_SYS_ERRLIST)
368	AC_DEFINE_NOAUTOHEADER(HAVE_SYS_NERR)
369	;;
370	esac
371
372	if test -z "${setobjs}"; then
373	case "${host}" in
374
375	--vxworks*)
376	# Handle VxWorks configuration specially, since on VxWorks the
377	# libraries are actually on the target board, not in the file
378	# system.
379	AC_LIBOBJ([basename])
380	AC_LIBOBJ([getpagesize])
381	AC_LIBOBJ([insque])
382	AC_LIBOBJ([random])
383	AC_LIBOBJ([strcasecmp])
384	AC_LIBOBJ([strncasecmp])
385	AC_LIBOBJ([strdup])
386	AC_LIBOBJ([vfork])
387	AC_LIBOBJ([waitpid])
388	AC_LIBOBJ([vasprintf])
389	for f in $funcs; do
390	case "$f" in
391	basename \| getpagesize \| insque \| random \| strcasecmp)
392	;;
393	strncasecmp \| strdup \| vfork \| waitpid \| vasprintf)
394	;;
395	*)
396	n=HAVE_`echo $f \| tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
397	AC_DEFINE_UNQUOTED($n)
398	;;
399	esac
400	done
401
402	# VxWorks doesn't provide any of the variables in $vars, so we
403	# don't have to check them here.
404
405	# Of the functions in $checkfuncs, VxWorks only has strerror.
406	AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
407
408	setobjs=yes
409	;;
410
411	esac
412	fi
413
414	if test -z "${setobjs}"; then
415
416	case "${host}" in
417
418	--cygwin*)
419	# The Cygwin library actually uses a couple of files from
420	# libiberty when it is built. If we are building a native
421	# Cygwin, and we run the tests, we will appear to have these
422	# files. However, when we go on to build winsup, we will wind up
423	# with a library which does not have the files, since they should
424	# have come from libiberty.
425
426	# We handle this by removing the functions the winsup library
427	# provides from our shell variables, so that they appear to be
428	# missing.
429
430	# DJ - only if we're building cygwin, not just building with cygwin
431
432	if test -n "${with_target_subdir}"
433	then
434	funcs="`echo $funcs \| sed -e 's/random//'`"
435	AC_LIBOBJ([random])
436	vars="`echo $vars \| sed -e 's/sys_siglist//'`"
437	checkfuncs="`echo $checkfuncs \| sed -e 's/strsignal//' -e 's/psignal//'`"
438	fi
439	;;
440
441	--mingw32*)
442	# Under mingw32, sys_nerr and sys_errlist exist, but they are
443	# macros, so the test below won't find them.
444	libiberty_cv_var_sys_nerr=yes
445	libiberty_cv_var_sys_errlist=yes
446	;;
447
448	--uwin*)
449	# Under some versions of uwin, vfork is notoriously buggy and the test
450	# can hang configure; on other versions, vfork exists just as a stub.
451	# FIXME: This should be removed once vfork in uwin's runtime is fixed.
452	ac_cv_func_vfork_works=no
453	# Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
454	# macros (actually, these are imported from a DLL, but the end effect
455	# is the same), so the test below won't find them.
456	libiberty_cv_var_sys_nerr=yes
457	libiberty_cv_var_sys_errlist=yes
458	;;
459
460	--vms)
461	# Under VMS, vfork works very different than on Unix. The standard test
462	# won't work, and it isn't easily adaptable. It makes more sense to
463	# just force it.
464	ac_cv_func_vfork_works=yes
465	;;
466
467	esac
468
469	# We haven't set the list of objects yet. Use the standard autoconf
470	# tests. This will only work if the compiler works.
471	AC_ISC_POSIX
472	AC_REPLACE_FUNCS($funcs)
473	libiberty_AC_FUNC_C_ALLOCA
85f969cd	474	AC_FUNC_FORK
1a79b024 DD	475	if test $ac_cv_func_vfork_works = no; then
	476	AC_LIBOBJ([vfork])
	477	fi
	478	# We only need _doprnt if we might use it to implement v*printf.
	479	if test $ac_cv_func_vprintf != yes \
	480	\|\| test $ac_cv_func_vfprintf != yes \
	481	\|\| test $ac_cv_func_vsprintf != yes; then
	482	AC_REPLACE_FUNCS(_doprnt)
	483	else
	484	AC_CHECK_FUNCS(_doprnt)
	485	fi
	486
	487	for v in $vars; do
	488	AC_MSG_CHECKING([for $v])
	489	AC_CACHE_VAL(libiberty_cv_var_$v,
85f969cd DD	490	[AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
	491	[eval "libiberty_cv_var_$v=yes"],
	492	[eval "libiberty_cv_var_$v=no"])])
1a79b024 DD	493	if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
	494	AC_MSG_RESULT(yes)
	495	n=HAVE_`echo $v \| tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
	496	AC_DEFINE_UNQUOTED($n)
	497	else
	498	AC_MSG_RESULT(no)
	499	fi
	500	done
	501
	502	# special check for _system_configuration because AIX <4.3.2 do not
	503	# contain the `physmem' member.
	504	AC_MSG_CHECKING([for external symbol _system_configuration])
85f969cd DD	505	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
85f969cd DD	506	[[double x = _system_configuration.physmem;]])],
1a79b024 DD	507	[AC_MSG_RESULT([yes])
1a79b024 DD	508	AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
85f969cd	509	[Define if you have the _system_configuration variable.])],
1a79b024 DD	510	[AC_MSG_RESULT([no])])
	511
	512	AC_CHECK_FUNCS($checkfuncs)
	513	libiberty_NEED_DECLARATION(canonicalize_file_name)
	514	fi
	515
	516	# Figure out which version of pexecute to use.
	517	case "${host}" in
46a10049 DD	518	--mingw* \| --winnt*) pexecute=./pex-win32.o ;;
	519	--msdosdjgpp*) pexecute=./pex-djgpp.o ;;
	520	--msdos*) pexecute=./pex-msdos.o ;;
	521	--os2-emx*) pexecute=./pex-os2.o ;;
	522	*) pexecute=./pex-unix.o ;;
1a79b024 DD	523	esac
	524	AC_SUBST(pexecute)
	525
	526	libiberty_AC_FUNC_STRNCMP
	527
	528	# Install a library built with a cross compiler in $(tooldir) rather
	529	# than $(libdir).
	530	if test -z "${with_cross_host}"; then
	531	INSTALL_DEST=libdir
	532	else
	533	INSTALL_DEST=tooldir
	534	fi
	535	AC_SUBST(INSTALL_DEST)
	536
11a338da DD	537	m4_pattern_allow(LIBOBJS)
	538	L=""
	539	for l in x $LIBOBJS; do
	540	case $l in
	541	x) ;;
	542	*) L="$L ./$l" ;;
	543	esac
	544	done
	545	LIBOBJS="$L"
	546
1a79b024	547	# We need multilib support, but only if configuring for the target.
85f969cd DD	548	AC_CONFIG_FILES([Makefile testsuite/Makefile])
	549	AC_CONFIG_COMMANDS([default],
	550	[[test -z "$CONFIG_HEADERS" \|\| echo timestamp > stamp-h
1a79b024	551	if test -n "$CONFIG_FILES"; then
f5396bbe	552	if test -n "${with_target_subdir}"; then
1a79b024 DD	553	# FIXME: We shouldn't need to set ac_file
	554	ac_file=Makefile
	555	LD="${ORIGINAL_LD_FOR_MULTILIBS}"
	556	. ${libiberty_topdir}/config-ml.in
	557	fi
85f969cd DD	558	fi]],
85f969cd DD	559	[[srcdir=${srcdir}
1a79b024 DD	560	host=${host}
	561	target=${target}
	562	with_target_subdir=${with_target_subdir}
1a79b024 DD	563	with_multisubdir=${with_multisubdir}
	564	ac_configure_args="--enable-multilib ${ac_configure_args}"
	565	CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
	566	ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
	567	libiberty_topdir=${libiberty_topdir}
85f969cd DD	568	]])
85f969cd DD	569	AC_OUTPUT