ld/configure.in

   1 dnl Process this file with autoconf to produce a configure script
   2 dnl
   3 AC_PREREG(2.13)
   4 AC_INIT(ldmain.c)
   5
   6 AC_CANONICAL_SYSTEM
   7
   8 AM_INIT_AUTOMAKE(ld, 2.10.91)
   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 ${enableval} for 64-bit-bfd option) ;;
  26 esac],[want64=false])dnl
  27
  28 build_warnings="-W -Wall"
  29 AC_ARG_ENABLE(build-warnings,
  30 [  --enable-build-warnings Enable build-time compiler warnings if gcc is used],
  31 [case "${enableval}" in
  32   yes)  ;;
  33   no)   build_warnings="-w";;
  34   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
  35         build_warnings="${build_warnings} ${t}";;
  36   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
  37         build_warnings="${t} ${build_warnings}";;
  38   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
  39 esac
  40 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
  41   echo "Setting warning flags = $build_warnings" 6>&1
  42 fi])dnl
  43 WARN_CFLAGS=""
  44 if test "x${build_warnings}" != x -a "x$GCC" = xyes ; then
  45     WARN_CFLAGS="${build_warnings}"
  46 fi
  47 AC_SUBST(WARN_CFLAGS)
  48
  49 AM_CONFIG_HEADER(config.h:config.in)
  50
  51 if test -z "$target" ; then
  52     AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
  53 fi
  54 if test -z "$host" ; then
  55     AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
  56 fi
  57
  58 # host-specific stuff:
  59
  60 AC_PROG_CC
  61 AC_PROG_INSTALL
  62
  63 ALL_LINGUAS=
  64 CY_GNU_GETTEXT
  65
  66 AC_EXEEXT
  67
  68 AC_PROG_YACC
  69 AM_PROG_LEX
  70
  71 AM_MAINTAINER_MODE
  72
  73 . ${srcdir}/configure.host
  74
  75 AC_SUBST(HDEFINES)
  76 AC_SUBST(HOSTING_CRT0)
  77 AC_SUBST(HOSTING_LIBS)
  78 AC_SUBST(NATIVE_LIB_DIRS)
  79
  80 AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
  81 AC_CHECK_FUNCS(sbrk)
  82 AC_HEADER_DIRENT
  83
  84 BFD_BINARY_FOPEN
  85
  86 BFD_NEED_DECLARATION(strstr)
  87 BFD_NEED_DECLARATION(free)
  88 BFD_NEED_DECLARATION(sbrk)
  89 BFD_NEED_DECLARATION(getenv)
  90 BFD_NEED_DECLARATION(environ)
  91
  92 # When converting linker scripts into strings for use in emulation
  93 # files, use astring.sed if the compiler supports ANSI string
  94 # concatenation, or ostring.sed otherwise.  This is to support the
  95 # broken Microsoft MSVC compiler, which limits the length of string
  96 # constants, while still supporting pre-ANSI compilers which do not
  97 # support string concatenation.
  98 AC_MSG_CHECKING([whether ANSI C string concatenation works])
  99 AC_CACHE_VAL(ld_cv_string_concatenation,
 100 [AC_TRY_COMPILE(,[char *a = "a" "a";],
 101   [ld_cv_string_concatenation=yes],
 102   [ld_cv_string_concatenation=no])])
 103 AC_MSG_RESULT($ld_cv_string_concatenation)
 104 if test "$ld_cv_string_concatenation" = "yes"; then
 105   STRINGIFY=astring.sed
 106 else
 107   STRINGIFY=ostring.sed
 108 fi
 109 AC_SUBST(STRINGIFY)
 110
 111 # target-specific stuff:
 112
 113 all_targets=
 114 EMUL=
 115 all_emuls=
 116 all_emul_extras=
 117 all_libpath=
 118
 119 dnl We need to get an arbitrary number of tdir definitions into
 120 dnl Makefile.  We can't do it using AC_SUBST, because autoconf does
 121 dnl not permit literal newlines in an AC_SUBST variables.  So we use a
 122 dnl file.
 123 rm -f tdirs
 124
 125 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 126 do
 127   if test "$targ_alias" = "all"; then
 128     all_targets=true
 129   else
 130     # Canonicalize the secondary target names.
 131     result=`$ac_config_sub $targ_alias 2>/dev/null`
 132     if test -n "$result"; then
 133         targ=$result
 134     else
 135         targ=$targ_alias
 136     fi
 137
 138     . ${srcdir}/configure.tgt
 139
 140     if test "$targ" = "$target"; then
 141       EMUL=$targ_emul
 142     fi
 143
 144     for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
 145         case " $all_emuls " in
 146         *" e${i}.o "*) ;;
 147         *)
 148           all_emuls="$all_emuls e${i}.o"
 149           eval result=\$tdir_$i
 150           test -z "$result" && result=$targ_alias
 151           echo tdir_$i=$result >> tdirs
 152           ;;
 153         esac
 154     done
 155
 156     for i in $targ_emul $targ_extra_libpath; do
 157         case " $all_libpath " in
 158         *" ${i} "*) ;;
 159         *)
 160           if test -z "$all_libpath"; then
 161             all_libpath=${i}
 162           else
 163             all_libpath="$all_libpath ${i}"
 164           fi
 165           ;;
 166         esac
 167     done
 168
 169     for i in $targ_extra_ofiles; do
 170         case " $all_emul_extras " in
 171         *" ${i} "*) ;;
 172         *)
 173           all_emul_extras="$all_emul_extras ${i}"
 174           ;;
 175         esac
 176     done
 177   fi
 178 done
 179
 180 AC_SUBST(EMUL)
 181
 182 TDIRS=tdirs
 183 AC_SUBST_FILE(TDIRS)
 184
 185 dnl FIXME: We will build a 64 bit BFD for a 64 bit host or a 64 bit
 186 dnl target, and in those cases we should also build the 64 bit
 187 dnl emulations.
 188 if test x${all_targets} = xtrue; then
 189   if test x${want64} = xtrue; then
 190     EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
 191   else
 192     EMULATION_OFILES='$(ALL_EMULATIONS)'
 193   fi
 194   EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
 195 else
 196   EMULATION_OFILES=$all_emuls
 197   EMUL_EXTRA_OFILES=$all_emul_extras
 198 fi
 199 AC_SUBST(EMULATION_OFILES)
 200 AC_SUBST(EMUL_EXTRA_OFILES)
 201
 202 EMULATION_LIBPATH=$all_libpath
 203 AC_SUBST(EMULATION_LIBPATH)
 204
 205 if test x${enable_static} = xno; then
 206   TESTBFDLIB="--rpath ../bfd/.libs ../bfd/.libs/libbfd.so"
 207 else
 208   TESTBFDLIB="../bfd/.libs/libbfd.a"
 209 fi
 210 AC_SUBST(TESTBFDLIB)
 211
 212 target_vendor=${target_vendor=$host_vendor}
 213 case "$target_vendor" in
 214   hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
 215   *)  EXTRA_SHLIB_EXTENSION= ;;
 216 esac
 217 if test x${EXTRA_SHLIB_EXTENSION} != x ; then
 218   AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
 219    [Additional extension a shared object might have.])
 220 fi
 221
 222 AC_OUTPUT(Makefile po/Makefile.in:po/Make-in,
 223 [sed -e '/POTFILES =/r po/POTFILES' po/Makefile.in > po/Makefile])