bfd/configure.host

   1 # This file is a shell script that overrides some of the tools and
   2 # flags used on a host specific basis.
   3
   4 # Since the "bfd/hosts" directory is shared by the bfd, opcodes, and
   5 # binutils directories (at least), the index to it is also shared.
   6 # This is that index.  Each configure.in file should source this file
   7 # in its per-host part.
   8
   9 # This sets the following shell variables:
  10 #  HDEFINES             host specific compiler options
  11 #  host64               set to true if this is a 64 bit host
  12 #  HOST_64BIT_TYPE      host 64 bit type
  13 #  SHLIB_CC             compiler to use when building shared library
  14 #  SHLIB_CFLAGS         flags to use when building shared library
  15 #  PICFLAG              may be set to flag to use to compile PIC
  16 #  SHLINK               may be set to the name to link the shared library to
  17 #  ALLLIBS              may be set to libraries to build
  18 #  HLDFLAGS             LDFLAGS specific to the host
  19 #  RPATH_ENVVAR         environment variable used to find shared libraries
  20
  21 HDEFINES=
  22 host64=false
  23 HOST_64BIT_TYPE=
  24
  25 case "${host}" in
  26
  27 alpha-*-*)              host64=true; HOST_64BIT_TYPE=long ;;
  28
  29 hppa*-*-hpux*)          HDEFINES=-DHOST_HPPAHPUX ;;
  30 hppa*-*-hiux*)          HDEFINES=-DHOST_HPPAHPUX ;;
  31 hppa*-*-bsd*)           HDEFINES=-DHOST_HPPABSD ;;
  32 hppa*-*-osf*)           HDEFINES=-DHOST_HPPAOSF ;;
  33
  34 i[345]86-sequent-bsd*)  HDEFINES=-Dshared=genshared ;;
  35 i[345]86-sequent-sysv4*) ;;
  36 i[345]86-sequent-sysv*) HDEFINES=-Dshared=genshared ;;
  37
  38 mips-dec-netbsd*)       ;;
  39 mips-dec-*)             HDEFINES="-G 4" ;;
  40 mips-sgi-irix3*)        HDEFINES="-G 4" ;;
  41 mips-sgi-irix4*)        HDEFINES="-G 4" ;;
  42 mips-*-sysv4*)          ;;
  43 mips-*-sysv*)           HDEFINES="-G 4" ;;
  44 mips-*-riscos*)         HDEFINES="-G 4" ;;
  45
  46 m68*-hp-hpux*)          HDEFINES=-DHOST_HP300HPUX ;;
  47
  48 esac
  49
  50 # If we are configuring with --enable-shared, adjust the shared
  51 # library support based on the host.  This support must work for both
  52 # the BFD and the opcodes libraries.
  53 HLDFLAGS=
  54 RPATH_ENVVAR=LD_LIBRARY_PATH
  55 SHLIB_CC='$(CC)'
  56 SHLIB_CFLAGS='-shared'
  57 if [ "${shared}" = "true" ]; then
  58   case "${host}" in
  59   hppa*-*-*)            picfrag=../config/mh-papic ;;
  60   i[3456]86-*-*)        picfrag=../config/mh-x86pic ;;
  61   *-*-*)                picfrag=../config/mh-${host_cpu}pic ;;
  62   esac
  63   if [ -f "${picfrag}" ]; then
  64     pic=`sed -n -e 's/^PICFLAG[         ]*=[    ]*\(.*\)$/\1/p' ${picfrag}`
  65     if [ -n "${pic}" ]; then
  66       PICFLAG=${pic}
  67     fi
  68   fi
  69
  70   case "${host}" in
  71   *-dec-osf*)
  72     # -fpic is not needed on the Alpha.
  73     PICFLAG=
  74     HLDFLAGS='-rpath $(libdir)'
  75     SHLIB_CFLAGS='-shared -Wl,-soname,$(SONAME)'
  76     ;;
  77   *-*-hpux*)
  78     # HP/UX uses .sl for shared libraries.
  79     SHLINK=`echo ${SHLINK} | sed -e 's/so$/sl/'`
  80     SHLIB_CFLAGS='-shared $(PICFLAG)'
  81     HLDFLAGS='-Wl,+s,+b,$(libdir)'
  82     RPATH_ENVVAR=SHLIB_PATH
  83     ;;
  84   *-*-irix5*)
  85     # -fpic is not needed on Irix 5.
  86     PICFLAG=
  87     SHLIB_CFLAGS='-shared -Wl,-soname,$(SONAME)'
  88     HLDFLAGS='-Wl,-rpath,$(libdir)'
  89     ;;
  90   *-*-linux*aout*)
  91     ;;
  92   *-*-linux*)
  93     SHLIB_CFLAGS='-shared -Wl,-soname,$(SONAME)'
  94     case "$(libdir)" in
  95       /lib | /usr/lib) ;;
  96       *) HLDFLAGS='-Wl,-rpath,$(libdir)' ;;
  97     esac
  98     ;;
  99   *-*-sysv4* | *-*-solaris*)
 100     SHLIB_CFLAGS='-shared -h $(SONAME)'
 101     HLDFLAGS='-R $(libdir)'
 102     ;;
 103   *-*-sunos*)
 104     # Build a libTARGET-bfd.so.VERSION symlink in the object directory.
 105     ALLLIBS=`echo ${ALLLIBS} | sed -e 's/\$(SHLINK)/stamp-tshlink/'`
 106     ;;
 107   esac
 108 fi
 109
 110 # On SunOS, if the linker supports the -rpath option, use it to
 111 # prevent ../bfd and ../opcodes from being included in the run time
 112 # search path.
 113 case "${host}" in
 114   *-*-sunos*)
 115     echo 'main () { }' > conftest.c
 116     ${CC} -o conftest -Wl,-rpath= conftest.c >/dev/null 2>conftest.t
 117     if grep 'unrecognized' conftest.t >/dev/null 2>&1; then
 118       :
 119     elif grep 'No such file' conftest.t >/dev/null 2>&1; then
 120       :
 121     elif grep 'do not mix' conftest.t >/dev/null 2>&1; then
 122       :
 123     elif [ "${shared}" = "true" ]; then
 124       HLDFLAGS='-Wl,-rpath=$(libdir)'
 125     else
 126       HLDFLAGS='-Wl,-rpath='
 127     fi
 128     rm -f conftest.t conftest.c conftest
 129     ;;
 130 esac