ld/configure.in

   1 dnl Process this file with autoconf to produce a configure script
   2 dnl
   3 AC_PREREG(2.5)
   4 AC_INIT(ldmain.c)
   5
   6 AC_CANONICAL_SYSTEM
   7
   8 AM_INIT_AUTOMAKE(ld, 2.9.1)
   9
  10 AM_PROG_LIBTOOL
  11
  12 AC_ARG_ENABLE(targets,
  13 [  --enable-targets        alternative target configurations],
  14 [case "${enableval}" in
  15   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
  16             ;;
  17   no)       enable_targets= ;;
  18   *)        enable_targets=$enableval ;;
  19 esac])dnl
  20 AC_ARG_ENABLE(64-bit-bfd,
  21 [  --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)],
  22 [case "${enableval}" in
  23   yes)  want64=true  ;;
  24   no)   want64=false ;;
  25   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
  26 esac],[want64=false])dnl
  27
  28 AM_CONFIG_HEADER(config.h:config.in)
  29
  30 if test -z "$target" ; then
  31     AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
  32 fi
  33 if test -z "$host" ; then
  34     AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
  35 fi
  36
  37 # host-specific stuff:
  38
  39 AC_PROG_CC
  40 AM_PROG_INSTALL
  41 AM_CYGWIN32
  42 AM_EXEEXT
  43
  44 AC_PROG_YACC
  45 AC_PROG_LEX
  46 AC_DECL_YYTEXT
  47
  48 AM_MAINTAINER_MODE
  49
  50 . ${srcdir}/configure.host
  51
  52 AC_SUBST(HDEFINES)
  53 AC_SUBST(HOSTING_CRT0)
  54 AC_SUBST(HOSTING_LIBS)
  55 AC_SUBST(NATIVE_LIB_DIRS)
  56
  57 AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
  58 AC_CHECK_FUNCS(sbrk)
  59 AC_HEADER_DIRENT
  60
  61 BFD_BINARY_FOPEN
  62
  63 BFD_NEED_DECLARATION(strstr)
  64 BFD_NEED_DECLARATION(free)
  65 BFD_NEED_DECLARATION(sbrk)
  66 BFD_NEED_DECLARATION(getenv)
  67
  68 # target-specific stuff:
  69
  70 all_targets=
  71 EMUL=
  72 all_emuls=
  73
  74 dnl We need to get an arbitrary number of tdir definitions into
  75 dnl Makefile.  We can't do it using AC_SUBST, because autoconf does
  76 dnl not permit literal newlines in an AC_SUBST variables.  So we use a
  77 dnl file.
  78 rm -f tdirs
  79
  80 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
  81 do
  82   if test "$targ_alias" = "all"; then
  83     all_targets=true
  84   else
  85     # Canonicalize the secondary target names.
  86     result=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $targ_alias 2>/dev/null`
  87     if test -n "$result"; then
  88         targ=$result
  89     else
  90         targ=$targ_alias
  91     fi
  92
  93     . ${srcdir}/configure.tgt
  94
  95     if test "$targ" = "$target"; then
  96       EMUL=$targ_emul
  97     fi
  98
  99     for i in $targ_emul $targ_extra_emuls; do
 100         case " $all_emuls " in
 101         *" e${i}.o "*) ;;
 102         *)
 103           all_emuls="$all_emuls e${i}.o"
 104           eval result=\$tdir_$i
 105           test -z "$result" && result=$targ_alias
 106           echo tdir_$i=$result >> tdirs
 107           ;;
 108         esac
 109     done
 110   fi
 111 done
 112
 113 AC_SUBST(EMUL)
 114
 115 TDIRS=tdirs
 116 AC_SUBST_FILE(TDIRS)
 117
 118 dnl FIXME: We will build a 64 bit BFD for a 64 bit host or a 64 bit
 119 dnl target, and in those cases we should also build the 64 bit
 120 dnl emulations.
 121 if test x${all_targets} = xtrue; then
 122   if test x${want64} = xtrue; then
 123     EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
 124   else
 125     EMULATION_OFILES='$(ALL_EMULATIONS)'
 126   fi
 127 else
 128   EMULATION_OFILES=$all_emuls
 129 fi
 130 AC_SUBST(EMULATION_OFILES)
 131
 132 AC_OUTPUT(Makefile)