* Incorporate GPR_SET() macro from mips/sim-main.h

[deliverable/binutils-gdb.git] / gdb / configure.in

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

AC_PREREQ(2.5)dnl
AC_INIT(main.c)
AC_CONFIG_HEADER(config.h:config.in)

AC_PROG_CC
AC_AIX
AC_MINIX
AC_ISC_POSIX

DLLTOOL=${DLLTOOL-dlltool}
AC_SUBST(DLLTOOL)

AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
AC_CANONICAL_SYSTEM

dnl List of object files added by configure.

CONFIG_OBS=
CONFIG_DEPS=

configdirs="doc testsuite"

dnl
changequote(,)dnl

. ${srcdir}/configure.host

. ${srcdir}/configure.tgt

dnl
changequote([,])dnl

AC_PROG_INSTALL
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_PROG_YACC
AC_PROG_AWK

AC_ARG_PROGRAM

AC_TYPE_SIGNAL

AC_HEADER_STDC
AC_CHECK_HEADERS(limits.h memory.h string.h strings.h unistd.h termios.h termio.h sgtty.h stddef.h stdlib.h sys/procfs.h link.h endian.h objlist.h)
AC_HEADER_STAT

AC_C_CONST

AC_CHECK_FUNCS(setpgid sbrk select poll sigaction)

# If we are configured native on Linux, work around problems with sys/procfs.h
if test "${target}" = "${host}"; then
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  i[[3456]]86-*-linux*)
	AC_DEFINE(START_INFERIOR_TRAPS_EXPECTED,2)
	AC_DEFINE(sys_quotactl)
	;;
  esac
fi

AC_MSG_CHECKING([for gregset_t type])
AC_CACHE_VAL(gdb_cv_have_gregset_t,
[AC_TRY_LINK([#include <sys/procfs.h>],[gregset_t *gregsetp = 0],
gdb_cv_have_gregset_t=yes, gdb_cv_have_gregset_t=no)])
AC_MSG_RESULT($gdb_cv_have_gregset_t)
if test $gdb_cv_have_gregset_t = yes; then
  AC_DEFINE(HAVE_GREGSET_T)
fi

AC_MSG_CHECKING([for fpregset_t type])
AC_CACHE_VAL(gdb_cv_have_fpregset_t,
[AC_TRY_LINK([#include <sys/procfs.h>],[fpregset_t *fpregsetp = 0],
gdb_cv_have_fpregset_t=yes, gdb_cv_have_fpregset_t=no)])
AC_MSG_RESULT($gdb_cv_have_fpregset_t)
if test $gdb_cv_have_fpregset_t = yes; then
  AC_DEFINE(HAVE_FPREGSET_T)
fi

dnl See if host has libm.  This is usually needed by simulators.
AC_CHECK_LIB(m, main)

dnl See if compiler supports "long long" type.

AC_MSG_CHECKING(for long long support in compiler)
AC_CACHE_VAL(gdb_cv_c_long_long,
[AC_TRY_COMPILE(, [
  extern long long foo;
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],
gdb_cv_c_long_long=yes, gdb_cv_c_long_long=no)])
AC_MSG_RESULT($gdb_cv_c_long_long)
if test $gdb_cv_c_long_long = yes; then
  AC_DEFINE(CC_HAS_LONG_LONG)
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dnl See if the compiler and runtime support printing long long

AC_MSG_CHECKING(for long long support in printf)
AC_CACHE_VAL(gdb_cv_printf_has_long_long,
[AC_TRY_RUN([
int main () {
  char buf[32];
  long long l = 0;
  l = (l << 16) + 0x0123;
  l = (l << 16) + 0x4567;
  l = (l << 16) + 0x89ab;
  l = (l << 16) + 0xcdef;
  sprintf (buf, "0x%016llx", l);
  return (strcmp ("0x0123456789abcdef", buf));
}],
gdb_cv_printf_has_long_long=yes,
gdb_cv_printf_has_long_long=no,
gdb_cv_printf_has_long_long=no)])
if test $gdb_cv_printf_has_long_long = yes; then
  AC_DEFINE(PRINTF_HAS_LONG_LONG)
fi
AC_MSG_RESULT($gdb_cv_printf_has_long_long)

dnl See if compiler supports "long double" type.  Can't use AC_C_LONG_DOUBLE
dnl because autoconf complains about cross-compilation issues.  However, this
dnl code uses the same variables as the macro for compatibility.

AC_MSG_CHECKING(for long double support in compiler)
AC_CACHE_VAL(ac_cv_c_long_double,
[AC_TRY_COMPILE(, [long double foo;],
ac_cv_c_long_double=yes, ac_cv_c_long_double=no)])
AC_MSG_RESULT($ac_cv_c_long_double)
if test $ac_cv_c_long_double = yes; then
  AC_DEFINE(HAVE_LONG_DOUBLE)
fi

dnl See if the compiler and runtime support printing long doubles

AC_MSG_CHECKING(for long double support in printf)
AC_CACHE_VAL(gdb_cv_printf_has_long_double,
[AC_TRY_RUN([
int main () {
  char buf[16];
  long double f = 3.141592653;
  sprintf (buf, "%Lg", f);
  return (strncmp ("3.14159", buf, 7));
}],
gdb_cv_printf_has_long_double=yes,
gdb_cv_printf_has_long_double=no,
gdb_cv_printf_has_long_double=no)])
if test $gdb_cv_printf_has_long_double = yes; then
  AC_DEFINE(PRINTF_HAS_LONG_DOUBLE)
fi
AC_MSG_RESULT($gdb_cv_printf_has_long_double)

dnl See if the compiler and runtime support scanning long doubles

AC_MSG_CHECKING(for long double support in scanf)
AC_CACHE_VAL(gdb_cv_scanf_has_long_double,
[AC_TRY_RUN([
int main () {
  char *buf = "3.141592653";
  long double f = 0;
  sscanf (buf, "%Lg", &f);
  return !(f > 3.14159 && f < 3.14160);
}],
gdb_cv_scanf_has_long_double=yes,
gdb_cv_scanf_has_long_double=no,
gdb_cv_scanf_has_long_double=no)])
if test $gdb_cv_scanf_has_long_double = yes; then
  AC_DEFINE(SCANF_HAS_LONG_DOUBLE)
fi
AC_MSG_RESULT($gdb_cv_scanf_has_long_double)

AC_FUNC_MMAP

BFD_NEED_DECLARATION(malloc)
BFD_NEED_DECLARATION(realloc)
BFD_NEED_DECLARATION(free)

dnl See if thread_db library is around for Solaris thread debugging.  Note that
dnl we must explicitly test for version 1 of the library because version 0
dnl (present on Solaris 2.4 or earlier) doesn't have the same API.

dnl Note that we only want this if we are both native (host == target), and
dnl not doing a canadian cross build (build == host).

if test ${build} = ${host} -a ${host} = ${target} ; then
	case ${host_os} in
	hpux*)
		AC_MSG_CHECKING(for HPUX/OSF thread support)
		if test -f /usr/include/dce/cma_config.h ; then
			if test "$GCC" = "yes" ; then
				AC_MSG_RESULT(yes)
				AC_DEFINE(HAVE_HPUX_THREAD_SUPPORT)
				CONFIG_OBS="${CONFIG_OJS} hpux-thread.o"
			else
				AC_MSG_RESULT(no (suppressed because you are not using GCC))
			fi
		else
			AC_MSG_RESULT(no)
		fi
		;;
	solaris*)
		AC_MSG_CHECKING(for Solaris thread debugging library)
		if test -f /usr/lib/libthread_db.so.1 ; then
			AC_MSG_RESULT(yes)
			AC_DEFINE(HAVE_THREAD_DB_LIB)
			CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
			AC_CHECK_LIB(dl, dlopen)
			if test "$GCC" = "yes" ; then
				CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -Xlinker -export-dynamic"
			fi
		else
			AC_MSG_RESULT(no)
		fi
		;;
	esac
	AC_SUBST(CONFIG_LDFLAGS)
fi

dnl Handle optional features that can be enabled.
ENABLE_CFLAGS=

AC_ARG_ENABLE(netrom,
[  --enable-netrom ],
[case "${enableval}" in
yes)	enable_netrom=yes ;;
no)	enable_netrom=no ;;
*)	AC_MSG_ERROR(bad value ${enableval} given for netrom option) ;;
esac])

if test "${enable_netrom}" = "yes"; then
	CONFIG_OBS="${CONFIG_OBS} remote-nrom.o" 
fi

MMALLOC_CFLAGS=
MMALLOC=
AC_SUBST(MMALLOC_CFLAGS)
AC_SUBST(MMALLOC)

AC_ARG_WITH(mmalloc,
[  --with-mmalloc             use memory mapped malloc package],
[case "${withval}" in
  yes)  want_mmalloc=true ;;
  no)   want_mmalloc=false;;
  *)    AC_MSG_ERROR(bad value ${withval} for GDB with-mmalloc option) ;;
esac],[want_mmalloc=false])dnl

if test x$want_mmalloc = xtrue; then
   AC_DEFINE(USE_MMALLOC)
   AC_DEFINE(FORCE_MMCHECK)
   MMALLOC_CFLAGS="-I$srcdir/../mmalloc"
   MMALLOC='../mmalloc/libmmalloc.a'
fi

# start-sanitize-gdbtk
ENABLE_IDE=
AC_ARG_ENABLE(ide, [  --enable-ide            Enable IDE support])
if test "$enable_ide" = yes; then
   enable_ide=yes
   ENABLE_IDE=1
else
   enable_ide=no
fi
AC_SUBST(ENABLE_IDE)

ENABLE_GDBTK=

AC_ARG_ENABLE(gdbtk,
[  --enable-gdbtk ],
[case "${enableval}" in
    yes)
	case "$host" in
	*go32*)
	    AC_MSG_WARN([GDB does not support GDBtk on host ${host}.  GDBtk will be disabled.])
	    enable_gdbtk=no ;;
	*windows*)
	    AC_MSG_WARN([GDB does not support GDBtk on host ${host}.  GDBtk will be disabled.])
	    enable_gdbtk=no ;;
	*)
	    enable_gdbtk=yes ;;
	esac ;;
    no)
	enable_gdbtk=no  ;;
    *)
	AC_MSG_ERROR(bad value ${enableval} given for gdbtk option) ;;
esac],
[
# Default is on for everything but go32 and cygwin32
case "$host" in
    *go32* | *windows*)
	;;
    *)
	enable_gdbtk=yes ;;
    esac
])

# In the cygwin32 environment, we need some additional flags.
AC_CACHE_CHECK([for cygwin32], gdb_cv_os_cygwin32,
[AC_EGREP_CPP(lose, [
#ifdef __CYGWIN32__
lose
#endif],[gdb_cv_os_cygwin32=yes],[gdb_cv_os_cygwin32=no])])

WIN32LIBS=
WIN32LDAPP=
AC_SUBST(WIN32LIBS)
AC_SUBST(WIN32LDAPP)

if test x$gdb_cv_os_cygwin32 = xyes; then
    if test x$enable_ide = xyes; then
	WIN32LIBS="-ladvapi32"
    fi
fi

configdir="unix"

if test "${enable_gdbtk}" = "yes"; then

    CY_AC_PATH_TCLCONFIG
    if test -z "${no_tcl}"; then
	CY_AC_LOAD_TCLCONFIG
	CY_AC_PATH_TKCONFIG

	# If $no_tk is nonempty, then we can't do Tk, and there is no
	# point to doing Tcl.
	if test -z "${no_tk}"; then
	   CY_AC_LOAD_TKCONFIG
	   CY_AC_PATH_TCLH
	   CY_AC_PATH_TKH
	   CY_AC_PATH_ITCLH
	   CY_AC_PATH_TIX

	   # now look for tix library stuff
	   TIXVERSION=4.1.8.0
	   . ${ac_cv_c_tclconfig}/tclConfig.sh
	   case "${host}" in
	   *-*-cygwin32*)
		tixdir=../tix/win/tcl8.0
		;;
	   *)
		tixdir=../tix/unix/tk8.0
		;;
	   esac 
	   if test "${TCL_SHARED_BUILD}" = "1"; then
		TIX_LIB_EXT="${TCL_SHLIB_SUFFIX}"

	        # Can't win them all: SunOS 4 (others?) appends a version
                # number after the ".so"
	        case "${host}" in
	        *-*-sunos4*)
	            TIX_LIB_EXT="${TIX_LIB_EXT}.1.0" ;;
                esac
	   
	   else
		TIX_LIB_EXT=".a"
	   fi

	   if test "${TCL_LIB_VERSIONS_OK}" = "ok"; then
		TIXLIB="-L${tixdir} -ltix${TIXVERSION}"
		TIX_DEPS="${tixdir}/libtix${TIXVERSION}${TIX_LIB_EXT}"
	   else
		TIXLIB="-L${tixdir} -ltix`echo ${TIXVERSION} | tr -d .`"
		TIX_DEPS="${tixdir}/libtix`echo ${TIXVERSION} | tr -d .`${TIX_LIB_EXT}"
	   fi

	   ENABLE_GDBTK=1

	   # Include some libraries that Tcl and Tk want.
	   if test "${enable_ide}" = "yes"; then	
	      TCL_LIBS='$(LIBIDE) $(LIBGUI) $(IDE) $(ITCL) $(TIX) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
	      CONFIG_DEPS='$(LIBIDE) $(LIBGUI) $(IDE_DEPS) $(ITCL_DEPS) $(TIX_DEPS) $(TK_DEPS) $(TCL_DEPS)'
	   else
	      TCL_LIBS='$(LIBGUI) $(ITCL) $(TIX) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
	      CONFIG_DEPS='$(LIBGUI) $(ITCL_DEPS) $(TIX_DEPS) $(TK_DEPS) $(TCL_DEPS)'
	   fi
	   # Yes, the ordering seems wrong here.  But it isn't.
	   # TK_LIBS is the list of libraries that need to be linked
	   # after Tcl/Tk.
	   LIBS="${LIBS} ${TCL_LIBS} ${TK_LIBS}"
	   CONFIG_OBS="${CONFIG_OBS} gdbtk.o"

	   if test x$gdb_cv_os_cygwin32 = xyes; then
	      WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32 -luser32"
	      WIN32LDAPP="-Wl,--subsystem,windows"
	   fi
	fi
    fi
fi

AC_SUBST(ENABLE_GDBTK)
AC_SUBST(X_CFLAGS)
AC_SUBST(X_LDFLAGS)
AC_SUBST(X_LIBS)
AC_SUBST(TIXLIB)
AC_SUBST(TIX_DEPS)
# end-sanitize-gdbtk

AC_SUBST(ENABLE_CFLAGS)

AC_SUBST(CONFIG_OBS)
AC_SUBST(CONFIG_DEPS)

# Begin stuff to support --enable-shared
AC_ARG_ENABLE(shared,
[  --enable-shared         use shared libraries],
[case "${enableval}" in
  yes) shared=true ;;
  no)  shared=false ;;
  *) shared=true ;;
esac])dnl

HLDFLAGS=
HLDENV=
# If we have shared libraries, try to set rpath reasonably.
if test "${shared}" = "true"; then
  case "${host}" in
  *-*-hpux*)
    HLDFLAGS='-Wl,+s,+b,$(libdir)'
    ;;
  *-*-irix5* | *-*-irix6*)
    HLDFLAGS='-Wl,-rpath,$(libdir)'
    ;;
  *-*-linux*aout*)
    ;;
  *-*-linux* | *-pc-linux-gnu)
    HLDFLAGS='-Wl,-rpath,$(libdir)'
    ;;
  *-*-solaris*)
    HLDFLAGS='-R $(libdir)'
    ;;
  *-*-sysv4*)
    HLDENV='if test -z "$${LD_RUN_PATH}"; then LD_RUN_PATH=$(libdir); else LD_RUN_PATH=$${LD_RUN_PATH}:$(libdir); fi; export LD_RUN_PATH;'
    ;;
  esac
fi

# On SunOS, if the linker supports the -rpath option, use it to
# prevent ../bfd and ../opcodes from being included in the run time
# search path.
case "${host}" in
  *-*-sunos*)
    echo 'main () { }' > conftest.c
    ${CC} -o conftest -Wl,-rpath= conftest.c >/dev/null 2>conftest.t
    if grep 'unrecognized' conftest.t >/dev/null 2>&1; then
      :
    elif grep 'No such file' conftest.t >/dev/null 2>&1; then
      :
    elif grep 'do not mix' conftest.t >/dev/null 2>&1; then
      :
    elif grep 'some text already loaded' conftest.t >/dev/null 2>&1; then
      :
    elif test "${shared}" = "true"; then
      HLDFLAGS='-Wl,-rpath=$(libdir)'
    else
      HLDFLAGS='-Wl,-rpath='
    fi
    rm -f conftest.t conftest.c conftest
    ;;
esac
AC_SUBST(HLDFLAGS)
AC_SUBST(HLDENV)
# End stuff to support --enable-shared

# target_subdir is used by the testsuite to find the target libraries.
target_subdir=
if test "${host}" != "${target}"; then
    target_subdir="${target_alias}/"
fi
AC_SUBST(target_subdir)

frags=
host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
if test ! -f ${host_makefile_frag}; then
AC_MSG_ERROR("*** Gdb does not support host ${host}")
fi
frags="$frags $host_makefile_frag"

target_makefile_frag=${srcdir}/config/${gdb_target_cpu}/${gdb_target}.mt
if test ! -f ${target_makefile_frag}; then
AC_MSG_ERROR("*** Gdb does not support target ${target}")
fi
frags="$frags $target_makefile_frag"

AC_SUBST_FILE(host_makefile_frag)
AC_SUBST_FILE(target_makefile_frag)
AC_SUBST(frags)

changequote(,)dnl
hostfile=`sed -n '
s/XM_FILE[ 	]*=[ 	]*\([^ 	]*\)/\1/p
' ${host_makefile_frag}`

targetfile=`sed -n '
s/TM_FILE[ 	]*=[ 	]*\([^ 	]*\)/\1/p
' ${target_makefile_frag}`

# these really aren't orthogonal true/false values of the same condition,
# but shells are slow enough that I like to reuse the test conditions
# whenever possible
if test "${target}" = "${host}"; then
nativefile=`sed -n '
s/NAT_FILE[ 	]*=[ 	]*\([^ 	]*\)/\1/p
' ${host_makefile_frag}`
# else
# GDBserver is only useful in a "native" enviroment
# configdirs=`echo $configdirs | sed 's/gdbserver//'`
fi
changequote([,])

# If hostfile (XM_FILE) and/or targetfile (TM_FILE) and/or nativefile
# (NAT_FILE) is not set in config/*/*.m[ht] files, we don't make the
# corresponding links.  But we have to remove the xm.h files and tm.h
# files anyway, e.g. when switching from "configure host" to
# "configure none".

files=
links=
rm -f xm.h
if test "${hostfile}" != ""; then
files="${files} config/${gdb_host_cpu}/${hostfile}"
links="${links} xm.h"
fi
rm -f tm.h
if test "${targetfile}" != ""; then
files="${files} config/${gdb_target_cpu}/${targetfile}"
links="${links} tm.h"
fi
rm -f nm.h
if test "${nativefile}" != ""; then
files="${files} config/${gdb_host_cpu}/${nativefile}"
links="${links} nm.h"
else
# A cross-only configuration.
files="${files} config/nm-empty.h"
links="${links} nm.h"
fi
# start-sanitize-gdbtk
AC_PROG_LN_S
# Make it possible to use the GUI without doing a full install
if test "${enable_gdbtk}" = "yes" -a ! -d gdbtcl ; then
  if test "$LN_S" = "ln -s" -a ! -f gdbtcl ; then
  echo linking $srcdir/gdbtcl to gdbtcl
  $LN_S $srcdir/gdbtcl gdbtcl
  else
  echo Warning: Unable to link $srcdir/gdbtcl to gdbtcl.  You will need to do a
  echo "         " make install before you are able to run the GUI.
  fi
fi
# end-sanitize-gdbtk

AC_LINK_FILES($files, $links)

dnl Check for exe extension set on certain hosts (e.g. Win32)
AM_EXEEXT

AC_CONFIG_SUBDIRS($configdirs)
AC_OUTPUT(Makefile .gdbinit:gdbinit.in,
[
dnl Autoconf doesn't provide a mechanism for modifying definitions 
dnl provided by makefile fragments.
dnl
if test "${nativefile}" = ""; then
sed -e '/^NATDEPFILES[[ 	]]*=[[ 	]]*/s//# NATDEPFILES=/' \
	< Makefile > Makefile.tem
mv -f Makefile.tem Makefile
fi

changequote(,)dnl
sed -e '/^TM_FILE[ 	]*=/s,^TM_FILE[ 	]*=[ 	]*,&config/'"${gdb_target_cpu}"'/,
/^XM_FILE[ 	]*=/s,^XM_FILE[ 	]*=[ 	]*,&config/'"${gdb_host_cpu}"'/,
/^NAT_FILE[ 	]*=/s,^NAT_FILE[ 	]*=[ 	]*,&config/'"${gdb_host_cpu}"'/,' <Makefile >Makefile.tmp
mv -f Makefile.tmp Makefile
changequote([,])dnl

case x$CONFIG_HEADERS in
xconfig.h:config.in)
echo > stamp-h ;;
esac
],
[
gdb_host_cpu=$gdb_host_cpu
gdb_target_cpu=$gdb_target_cpu
nativefile=$nativefile
])

exit 0