old-cross-binutils/bfd/configure.host
Ian Lance Taylor 44f795f7fe Support for building as a shared library, based on patches from
Alan Modra <alan@spri.levels.unisa.edu.au>:
	* configure.in: Add AC_ARG_ENABLE for shared and commonbfdlib.
	New substitutions: ALLLIBS, PICFLAG, SHLIB, SHLIB_CC,
	SHLIB_CFLAGS, COMMON_SHLIB, PICLIST, SHLINK.
	* configure: Rebuild.
	* configure.host: If --enable-shared, adjust shared library stuff
	based on the host.  If the host is SunOS, and the linker supports
	-rpath, set HLDFLAGS to use it.
	* Makefile.in (ALLLIBS): New variable.
	(PICFLAG, SHLIB, SHLIB_CC, SHLIB_CFLAGS): New variables.
	(COMMON_SHLIB, SHLINK): New variables.
	(.c.o): If PICFLAG is set, compile twice, once PIC, once normal.
	(STAGESTUFF): Remove variable.
	(all): Depend upon $(ALLLIBS) and @PICLIST@ rather than
	$(TARGETLIB).
	(stamp-ofiles): New target, like old ofiles target, but build
	using a temporary file and move-if-change, and touch stamp-ofiles
	when done.
	(ofiles): Just depend upon stamp-ofiles.
	(stamp-piclist, piclist): New targets.
	($(SHLIB), $(SHLINK)): New targets.
	(targets.o, archures.o): Build twice if PICFLAG is set.
	(do_mostlyclean): Remove pic/*.o.
	(do_clean): Remove stamp-ofiles, $(SHLIB), $(SHLINK), piclist, and
	stamp-piclist.
	(do_distclean): Remove pic and stamp-picdir.
	(install): Install shared libraries.
	($(OFILES)): Depend upon stamp-picdir.
	(stamp-picdir): New target.
1996-02-05 21:14:14 +00:00

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# 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:
# CC compiler to use (only if needed and not already set)
# CFLAGS override CFLAGS (only if needed and not already set)
# LDFLAGS override LDFLAGS (only if needed and not already set)
# AR archiver to use (only if needed and not already set)
# RANLIB ranlib to use (only if needed and not already set)
# HDEFINES host specific compiler options
# host64 set to true if this is a 64 bit host
# HOST_64BIT_TYPE host 64 bit type
# 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
HDEFINES=
host64=false
HOST_64BIT_TYPE=
case "${host}" in
# WHEN ADDING ENTRIES TO THIS MATRIX:
# Make sure that the left side always has two dashes. Otherwise you
# can get spurious matches. Even for unambiguous cases, do this as a
# convention, else the table becomes a real mess to understand and maintain.
#
# Note that these entries cannot be fully alphabetical. Don't try.
# The order of matching is critical when multiple lines could match.
alpha-*-*) host64=true; HOST_64BIT_TYPE=long ;;
a29k-*-*) CC=${CC-u3cc}; AR=${AR-u3ar} ;;
hppa*-*-hpux*) HDEFINES=-DHOST_HPPAHPUX ;;
hppa*-*-hiux*) HDEFINES=-DHOST_HPPAHPUX ;;
hppa*-*-bsd*) HDEFINES=-DHOST_HPPABSD ;;
hppa*-*-osf*) HDEFINES=-DHOST_HPPAOSF ;;
i[345]86-sequent-bsd*) HDEFINES=-Dshared=genshared ;;
i[345]86-sequent-sysv4*) ;;
i[345]86-sequent-sysv*) HDEFINES=-Dshared=genshared ;;
i[345]86-ncr*-sysv4*) CC=${CC-/usr/ccs/ATT/cc}
test -z "$CFLAGS" && CFLAGS=" "
;;
i[345]86-*-go32*) test -z "$CC" && CC="i386-go32-gcc -fno-omit-frame-pointer -O2 -Wl,-S"
AR=${AR-i386-go32-ar}
RANLIB=${RANLIB-i386-go32-ranlib}
;;
i[345]86-*-win32) test -z "$CC" && CC="i386-win32-gcc -O2"
AR=${AR-i386-win32-ar}
RANLIB=${RANLIB-i386-win32-ranlib}
;;
mips-dec-netbsd*) ;;
mips-dec-*) HDEFINES="-G 4" ;;
mips-sgi-irix3*) HDEFINES="-G 4"
test -z "$LDFLAGS" && LDFLAGS=-lmalloc
;;
mips-sgi-irix4*) HDEFINES="-G 4"
test -z "$LDFLAGS" && LDFLAGS=-lmalloc
;;
mips-*-sysv4*) ;;
mips-*-sysv*) HDEFINES="-G 4" ;;
mips-*-riscos*) HDEFINES="-G 4" ;;
m68*-apollo*-sysv*) # sef@cygnus.com says this is how to compile
# on an apollo in the SysV environment.
test -z "$CC" && CC="cc -A nansi -A cpu,3000 -A runtype,any -A systype,any -DSHORT_ENUM_BUG -DUSG -U__STDC__ -Dm68000=mc68000"
;;
m68*-hp-hpux*) HDEFINES=-DHOST_HP300HPUX ;;
m88*-*-dgux*) test -z "$CC" && CC="gcc -Wall -ansi -D__using_DGUX"
;;
romp-*-*) # hc/pcc just can't cut it
CC=${CC-gcc}
;;
rs6000-*-aix4) HDEFINES=-DHOST_AIX ;;
rs6000-*-*) HDEFINES=-DHOST_AIX ;;
powerpc-*-aix4*) HDEFINES=-DHOST_AIX ;;
powerpc-*-aix*) HDEFINES=-DHOST_AIX ;;
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.
SHLIB_CC='$(CC)'
SHLIB_CFLAGS='-shared'
if [ "${shared}" = "true" ]; then
case "${host}" in
hppa*-*-*) picfrag=../config/mh-papic ;;
i[3456]86-*-*) picfrag=../config/mh-x86pic ;;
*-*-*) picfrag=../config/mh-${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
base_shlib=`echo ${SHLIB} | sed -e 's,^.*/\([^/]*\)$,\1,'`
case "${host}" in
*-dec-osf*)
# -fpic is not needed on the Alpha.
PICFLAG=
;;
*-*-hpux*)
# HP/UX uses .sl for shared libraries.
SHLINK=`echo ${SHLINK} | sed -e 's/so$/sl/'`
;;
*-*-irix5*)
# -fpic is not needed on Irix 5.
PICFLAG=
SHLIB_CFLAGS="-shared -Wl,-soname,${base_shlib}"
;;
*-*-linux*aout*)
;;
*-*-linux*)
SHLIB_CFLAGS="-shared -Wl,-soname,${base_shlib}"
;;
*-*-sysv4* | *-*-solaris*)
SHLIB_CFLAGS="-shared -h ${base_shlib}"
;;
*-*-sunos*)
ALLLIBS=`echo ${ALLLIBS} | sed -e 's/\$(SHLINK)//'`
;;
esac
fi
# On SunOS, if the linker supports the -rpath option, use it to
# prevent ../bfd and ../opcodes from being included in the run time
# search path.
HLDFLAGS=
case "${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
:
else
HLDFLAGS='-Wl,-rpath='
fi
rm -f conftest.t conftest.c conftest
;;
esac