contrib/binutils/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 64 bit types are as fast as 32 bit
  12 #  HOST_64BIT_TYPE      host 64 bit type
  13 #  HOST_U_64BIT_TYPE    unsigned 64 bit type (not needed if 64BIT_TYPE is long)
  14 #  SHLIB_CC             compiler to use when building shared library
  15 #  SHLIB_CFLAGS         flags to use when building shared library
  16 #  SHLIB_LIBS           libraries to use when building shared library
  17 #  PICFLAG              may be set to flag to use to compile PIC
  18 #  SHLINK               may be set to the name to link the shared library to
  19 #  ALLLIBS              may be set to libraries to build
  20 #  HLDFLAGS             LDFLAGS specific to the host
  21 #  HLDENV               environment variable to set when linking for the host
  22 #  RPATH_ENVVAR         environment variable used to find shared libraries
  23 #  INSTALL_SHLIB        install a shared library
  24
  25 HDEFINES=
  26 host64=false
  27 HOST_64BIT_TYPE=
  28
  29 case "${host}" in
  30
  31 alpha-*-*)              host64=true; HOST_64BIT_TYPE=long ;;
  32
  33 hppa*-*-hpux*)          HDEFINES=-DHOST_HPPAHPUX ;;
  34 hppa*-*-hiux*)          HDEFINES=-DHOST_HPPAHPUX ;;
  35 hppa*-*-bsd*)           HDEFINES=-DHOST_HPPABSD ;;
  36 hppa*-*-osf*)           HDEFINES=-DHOST_HPPAOSF ;;
  37
  38 i[3456]86-sequent-bsd*) HDEFINES=-Dshared=genshared ;;
  39 i[3456]86-sequent-sysv4*) ;;
  40 i[3456]86-sequent-sysv*)        HDEFINES=-Dshared=genshared ;;
  41
  42 mips*-dec-netbsd*)      ;;
  43 mips*-*-openbsd*)       ;;
  44 mips*-dec-*)            HDEFINES="-G 4" ;;
  45 mips*-sgi-irix3*)       HDEFINES="-G 4" ;;
  46 mips*-sgi-irix4*)       HDEFINES="-G 4" ;;
  47 mips*-sgi-irix6*)       host64=true
  48                         HOST_64BIT_TYPE="long long";
  49                         HOST_U_64BIT_TYPE="unsigned long long";
  50                         ;;
  51 mips*-*-sysv4*)         ;;
  52 mips*-*-sysv*)          HDEFINES="-G 4" ;;
  53 mips*-*-riscos*)        HDEFINES="-G 4" ;;
  54
  55 m68*-hp-hpux*)          HDEFINES=-DHOST_HP300HPUX ;;
  56
  57 *-*-solaris*)           HOST_64BIT_TYPE="long long"
  58                         HOST_U_64BIT_TYPE="unsigned long long"
  59                         ;;
  60
  61 *-*-windows*)
  62                         HOST_64BIT_TYPE=__int64
  63                         HOST_U_64BIT_TYPE="unsigned __int64"
  64 # The following krock is necessary because we can't run the build compiler
  65 # (MSVC) on the configure host, so we have to explicitly set the values here.
  66 # Note that this file is never run through autoconf, so we can't use any
  67 # autoconf macros here.  Because of this, we have to muck with autoconf
  68 # variables explicitly.
  69                         ac_cv_func_mmap_fixed_mapped=no
  70                         ac_cv_header_time=no
  71                         ac_cv_func_getpagesize=no
  72                         ac_cv_func_madvise=no
  73                         ac_cv_func_mprotect=no
  74                         ac_cv_header_sys_file_h=no
  75                         ac_cv_header_sys_time_h=no
  76                         ac_cv_header_unistd_h=no
  77                         ;;
  78 esac
  79
  80 # If we are configuring with --enable-shared, adjust the shared
  81 # library support based on the host.  This support must work for both
  82 # the BFD and the opcodes libraries.
  83 HLDFLAGS=
  84 HLDENV=
  85 RPATH_ENVVAR=LD_LIBRARY_PATH
  86 SHLIB_CC='$(CC)'
  87 SHLIB_CFLAGS='-shared'
  88 SHLIB_LIBS=
  89 INSTALL_SHLIB='$(INSTALL_PROGRAM) $$f $(libdir)/$$tf;'
  90 if [ "${shared}" = "true" ]; then
  91   case "${host}" in
  92   hppa*-*-*)            picfrag=${srcdir}/../config/mh-papic ;;
  93   i[34566]86-*-*)       picfrag=${srcdir}/../config/mh-x86pic ;;
  94   *-*-*)                picfrag=${srcdir}/../config/mh-${host_cpu}pic ;;
  95   esac
  96   if [ -f "${picfrag}" ]; then
  97     pic=`sed -n -e 's/^PICFLAG[         ]*=[    ]*\(.*\)$/\1/p' ${picfrag}`
  98     if [ -n "${pic}" ]; then
  99       PICFLAG=${pic}
 100     fi
 101   fi
 102
 103   case "${host}" in
 104   *-dec-osf*)
 105     # -fpic is not needed on the Alpha.
 106     PICFLAG=
 107     HLDFLAGS='-rpath $(libdir)'
 108     SHLIB_CFLAGS='-shared -Wl,-soname,$(SONAME)'
 109     ;;
 110   *-*-hpux*)
 111     # HP/UX uses .sl for shared libraries.
 112     SHLINK=`echo ${SHLINK} | sed -e 's/so$/sl/'`
 113     SHLIB_CFLAGS='-shared $(PICFLAG)'
 114     HLDFLAGS='-Wl,+s,+b,$(libdir)'
 115     RPATH_ENVVAR=SHLIB_PATH
 116     INSTALL_SHLIB='$(INSTALL_PROGRAM) $$f $(libdir)/$$tf; chmod -w $(libdir)/$$tf;'
 117     ;;
 118   *-*-irix[56]*)
 119     # -fpic is not needed on Irix 5 or 6.
 120     PICFLAG=
 121     SHLIB_CFLAGS='-shared -Wl,-soname,$(SONAME)'
 122     HLDFLAGS='-Wl,-rpath,$(libdir)'
 123     ;;
 124   *-*-linux*aout*)
 125     ;;
 126   *-*-linux*)
 127     SHLIB_CFLAGS='-shared -Wl,-soname,$(SONAME)'
 128     case "${libdir}" in
 129       /lib | /usr/lib) ;;
 130       *) HLDFLAGS='-Wl,-rpath,$(libdir)' ;;
 131     esac
 132     # On Linux, apparently, linking against -lc lets ldconfig figure
 133     # out which version of libc should be used.
 134     SHLIB_LIBS=-lc
 135     ;;
 136   *-*-solaris*)
 137     SHLIB_CFLAGS='-shared -h $(SONAME)'
 138     HLDFLAGS='-R $(libdir)'
 139     ;;
 140   *-*-sysv4*)
 141     SHLIB_CFLAGS='-shared -h $(SONAME)'
 142     HLDENV='if test -z "$${LD_RUN_PATH}"; then LD_RUN_PATH=$(libdir); else LD_RUN_PATH=$${LD_RUN_PATH}:$(libdir); fi; export LD_RUN_PATH;'
 143     ;;
 144   *-*-sunos*)
 145     # Build a libTARGET-bfd.so.VERSION symlink in the object directory.
 146     ALLLIBS=`echo ${ALLLIBS} | sed -e 's/\$(SHLINK)/stamp-tshlink/'`
 147     ;;
 148   esac
 149 fi
 150
 151 # On SunOS, if the linker supports the -rpath option, use it to
 152 # prevent ../bfd and ../opcodes from being included in the run time
 153 # search path.
 154 case "${host}" in
 155   *-*-sunos*)
 156     echo 'main () { }' > conftest.c
 157     ${CC} -o conftest -Wl,-rpath= conftest.c >/dev/null 2>conftest.t
 158     if grep 'unrecognized' conftest.t >/dev/null 2>&1; then
 159       :
 160     elif grep 'No such file' conftest.t >/dev/null 2>&1; then
 161       :
 162     elif grep 'do not mix' conftest.t >/dev/null 2>&1; then
 163       :
 164     elif [ "${shared}" = "true" ]; then
 165       HLDFLAGS='-Wl,-rpath=$(libdir)'
 166     else
 167       HLDFLAGS='-Wl,-rpath='
 168     fi
 169     rm -f conftest.t conftest.c conftest
 170     ;;
 171 esac