Tue Jul 14 15:37:41 1998 Geoffrey Noer <noer@cygnus.com>

[deliverable/binutils-gdb.git] / bfd / configure.host

# This file is a shell script that overrides some of the tools and
# flags used on a host specific basis.

# Since the "bfd/hosts" directory is shared by the bfd, opcodes, and
# binutils directories (at least), the index to it is also shared.
# This is that index.  Each configure.in file should source this file
# in its per-host part.

# This sets the following shell variables:
#  HDEFINES		host specific compiler options
#  host64		set to true if 64 bit types are as fast as 32 bit
#  HOST_64BIT_TYPE	host 64 bit type
#  HOST_U_64BIT_TYPE	unsigned 64 bit type (not needed if 64BIT_TYPE is long)
#  SHLIB_CC		compiler to use when building shared library
#  SHLIB_CFLAGS		flags to use when building shared library
#  PICFLAG		may be set to flag to use to compile PIC
#  SHLINK		may be set to the name to link the shared library to
#  ALLLIBS		may be set to libraries to build
#  HLDFLAGS		LDFLAGS specific to the host
#  HLDENV		environment variable to set when linking for the host
#  RPATH_ENVVAR		environment variable used to find shared libraries
#  INSTALL_SHLIB	install a shared library

HDEFINES=
host64=false
HOST_64BIT_TYPE=

case "${host}" in

alpha-*-*)		host64=true; HOST_64BIT_TYPE=long ;;

hppa*-*-hpux*)		HDEFINES=-DHOST_HPPAHPUX ;;
hppa*-*-hiux*)		HDEFINES=-DHOST_HPPAHPUX ;;
hppa*-*-bsd*)		HDEFINES=-DHOST_HPPABSD ;;
hppa*-*-osf*)		HDEFINES=-DHOST_HPPAOSF ;;

i[3456]86-sequent-bsd*)	HDEFINES=-Dshared=genshared ;;
i[3456]86-sequent-sysv4*) ;;
i[3456]86-sequent-sysv*)	HDEFINES=-Dshared=genshared ;;

mips-dec-netbsd*)	;;
mips-dec-*)		HDEFINES="-G 4"	;;
mips-sgi-irix3*)	HDEFINES="-G 4" ;;
mips-sgi-irix4*)	HDEFINES="-G 4" ;;
mips-sgi-irix6*)	host64=true
			HOST_64BIT_TYPE="long long";
			HOST_U_64BIT_TYPE="unsigned long long";
			;;
mips-*-sysv4*)		;;
mips-*-sysv*)		HDEFINES="-G 4" ;;
mips-*-riscos*)		HDEFINES="-G 4" ;;

m68*-hp-hpux*)		HDEFINES=-DHOST_HP300HPUX ;;

*-*-solaris*)		HOST_64BIT_TYPE="long long"
			HOST_U_64BIT_TYPE="unsigned long long"
			;;

*-*-windows*)
			host64=true
			HOST_64BIT_TYPE=__int64
			HOST_U_64BIT_TYPE="unsigned __int64"
# The following krock is necessary because we can't run the build compiler
# (MSVC) on the configure host, so we have to explicitly set the values here.
# Note that this file is never run through autoconf, so we can't use any
# autoconf macros here.  Because of this, we have to muck with autoconf
# variables explicitly.
			ac_cv_func_mmap_fixed_mapped=no
			ac_cv_header_time=no
			ac_cv_func_getpagesize=no
			ac_cv_func_madvise=no
			ac_cv_func_mprotect=no
			ac_cv_header_sys_file_h=no
			ac_cv_header_sys_time_h=no
			ac_cv_header_unistd_h=no
			;;
esac

# If we are configuring with --enable-shared, adjust the shared
# library support based on the host.  This support must work for both
# the BFD and the opcodes libraries.
HLDFLAGS=
HLDENV=
RPATH_ENVVAR=LD_LIBRARY_PATH
SHLIB_CC='$(CC)'
SHLIB_CFLAGS='-shared'
INSTALL_SHLIB='$(INSTALL_PROGRAM) $$f $(libdir)/$$tf;'
if [ "${shared}" = "true" ]; then
  case "${host}" in
  hppa*-*-*)		picfrag=${srcdir}/../config/mh-papic ;;
  i[34566]86-*-*)	picfrag=${srcdir}/../config/mh-x86pic ;;
  *-*-*)		picfrag=${srcdir}/../config/mh-${host_cpu}pic ;;
  esac
  if [ -f "${picfrag}" ]; then
    pic=`sed -n -e 's/^PICFLAG[ 	]*=[ 	]*\(.*\)$/\1/p' ${picfrag}`
    if [ -n "${pic}" ]; then
      PICFLAG=${pic}
    fi
  fi

  case "${host}" in
  *-dec-osf*)
    # -fpic is not needed on the Alpha.
    PICFLAG=
    HLDFLAGS='-rpath $(libdir)'
    SHLIB_CFLAGS='-shared -Wl,-soname,$(SONAME)'
    ;;
  *-*-hpux*)
    # HP/UX uses .sl for shared libraries.
    SHLINK=`echo ${SHLINK} | sed -e 's/so$/sl/'`
    SHLIB_CFLAGS='-shared $(PICFLAG)'
    HLDFLAGS='-Wl,+s,+b,$(libdir)'
    RPATH_ENVVAR=SHLIB_PATH
    INSTALL_SHLIB='$(INSTALL_PROGRAM) $$f $(libdir)/$$tf; chmod -w $(libdir)/$$tf;'
    ;;
  *-*-irix[56]*)
    # -fpic is not needed on Irix 5 or 6.
    PICFLAG=
    SHLIB_CFLAGS='-shared -Wl,-soname,$(SONAME)'
    HLDFLAGS='-Wl,-rpath,$(libdir)'
    ;;
  *-*-linux*aout*)
    ;;
  *-*-linux*)
    SHLIB_CFLAGS='-shared -Wl,-soname,$(SONAME)'
    case "${libdir}" in
      /lib | /usr/lib) ;;
      *) HLDFLAGS='-Wl,-rpath,$(libdir)' ;;
    esac
    ;;
  *-*-solaris*)
    SHLIB_CFLAGS='-shared -h $(SONAME)'
    HLDFLAGS='-R $(libdir)'
    ;;
  *-*-sysv4*)
    SHLIB_CFLAGS='-shared -h $(SONAME)'
    HLDENV='if test -z "$${LD_RUN_PATH}"; then LD_RUN_PATH=$(libdir); else LD_RUN_PATH=$${LD_RUN_PATH}:$(libdir); fi; export LD_RUN_PATH;'
    ;;
  *-*-sunos*)
    # Build a libTARGET-bfd.so.VERSION symlink in the object directory.
    ALLLIBS=`echo ${ALLLIBS} | sed -e 's/\$(SHLINK)/stamp-tshlink/'`
    ;;
  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
    ${CC} -o conftest -Wl,-rpath= conftest.c >/dev/null 2>conftest.t
    if grep 'unrecognized' conftest.t >/dev/null 2>&1; then
      :
    elif grep 'No such file' conftest.t >/dev/null 2>&1; then
      :
    elif grep 'do not mix' conftest.t >/dev/null 2>&1; then
      :
    elif [ "${shared}" = "true" ]; then
      HLDFLAGS='-Wl,-rpath=$(libdir)'
    else
      HLDFLAGS='-Wl,-rpath='
    fi
    rm -f conftest.t conftest.c conftest
    ;;
esac