ld/configure.in

   1 dnl Process this file with autoconf to produce a configure script
   2 dnl
   3 AC_PREREQ(2.13)
   4 AC_INIT(ldmain.c)
   5
   6 AC_CANONICAL_SYSTEM
   7 AC_ISC_POSIX
   8
   9 changequote(,)dnl
  10 BFD_VERSION=`sed -n -e 's/^.._INIT_AUTOMAKE.*,[         ]*\([^  ]*\)[   ]*).*/\1/p' < ${srcdir}/../bfd/configure.in`
  11 changequote([,])dnl
  12 AM_INIT_AUTOMAKE(ld, ${BFD_VERSION})
  13
  14 AM_PROG_LIBTOOL
  15
  16 AC_ARG_WITH(lib-path, [  --with-lib-path=dir1:dir2...  set default LIB_PATH],LIB_PATH=$withval)
  17 AC_ARG_ENABLE(targets,
  18 [  --enable-targets        alternative target configurations],
  19 [case "${enableval}" in
  20   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
  21             ;;
  22   no)       enable_targets= ;;
  23   *)        enable_targets=$enableval ;;
  24 esac])dnl
  25 AC_ARG_ENABLE(64-bit-bfd,
  26 [  --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)],
  27 [case "${enableval}" in
  28   yes)  want64=true  ;;
  29   no)   want64=false ;;
  30   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
  31 esac],[want64=false])dnl
  32
  33 AC_ARG_WITH(sysroot,
  34 [  --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
  35 [
  36  case ${with_sysroot} in
  37  yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
  38  *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
  39  esac
  40
  41  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
  42  use_sysroot=yes
  43
  44  if test "x$exec_prefix" = xNONE; then
  45   if test "x$prefix" = xNONE; then
  46    test_prefix=/usr/local
  47   else
  48    test_prefix=$prefix
  49   fi
  50  else
  51   test_prefix=$exec_prefix
  52  fi
  53  case ${TARGET_SYSTEM_ROOT} in
  54  "${test_prefix}"|"${test_prefix}/"*|\
  55  '${exec_prefix}'|'${exec_prefix}/'*)
  56    t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
  57    TARGET_SYSTEM_ROOT_DEFINE="$t"
  58    ;;
  59  esac
  60 ], [
  61  use_sysroot=no
  62  TARGET_SYSTEM_ROOT=
  63  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
  64 ])
  65 AC_SUBST(use_sysroot)
  66 AC_SUBST(TARGET_SYSTEM_ROOT)
  67 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
  68
  69 build_warnings="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
  70 AC_ARG_ENABLE(build-warnings,
  71 [  --enable-build-warnings enable build-time compiler warnings if gcc is used],
  72 [case "${enableval}" in
  73   yes)  ;;
  74   no)   build_warnings="-w";;
  75   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
  76         build_warnings="${build_warnings} ${t}";;
  77   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
  78         build_warnings="${t} ${build_warnings}";;
  79   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
  80 esac
  81 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
  82   echo "Setting warning flags = $build_warnings" 6>&1
  83 fi])dnl
  84 WARN_CFLAGS=""
  85 if test "x${build_warnings}" != x -a "x$GCC" = xyes ; then
  86     WARN_CFLAGS="${build_warnings}"
  87 fi
  88 AC_SUBST(WARN_CFLAGS)
  89
  90 AM_CONFIG_HEADER(config.h:config.in)
  91
  92 if test -z "$target" ; then
  93     AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
  94 fi
  95 if test -z "$host" ; then
  96     AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
  97 fi
  98
  99 # host-specific stuff:
 100
 101 AC_PROG_CC
 102 AC_PROG_INSTALL
 103
 104 ALL_LINGUAS="fr sv tr es da"
 105 CY_GNU_GETTEXT
 106
 107 AC_EXEEXT
 108
 109 AC_PROG_YACC
 110 AM_PROG_LEX
 111
 112 AM_MAINTAINER_MODE
 113
 114 . ${srcdir}/configure.host
 115
 116 AC_SUBST(HDEFINES)
 117 AC_SUBST(HOSTING_CRT0)
 118 AC_SUBST(HOSTING_LIBS)
 119 AC_SUBST(NATIVE_LIB_DIRS)
 120
 121 AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
 122 AC_CHECK_FUNCS(sbrk realpath)
 123 AC_HEADER_DIRENT
 124
 125 BFD_BINARY_FOPEN
 126
 127 BFD_NEED_DECLARATION(strstr)
 128 BFD_NEED_DECLARATION(free)
 129 BFD_NEED_DECLARATION(sbrk)
 130 BFD_NEED_DECLARATION(getenv)
 131 BFD_NEED_DECLARATION(environ)
 132
 133 # When converting linker scripts into strings for use in emulation
 134 # files, use astring.sed if the compiler supports ANSI string
 135 # concatenation, or ostring.sed otherwise.  This is to support the
 136 # broken Microsoft MSVC compiler, which limits the length of string
 137 # constants, while still supporting pre-ANSI compilers which do not
 138 # support string concatenation.
 139 AC_MSG_CHECKING([whether ANSI C string concatenation works])
 140 AC_CACHE_VAL(ld_cv_string_concatenation,
 141 [AC_TRY_COMPILE(,[char *a = "a" "a";],
 142   [ld_cv_string_concatenation=yes],
 143   [ld_cv_string_concatenation=no])])
 144 AC_MSG_RESULT($ld_cv_string_concatenation)
 145 if test "$ld_cv_string_concatenation" = "yes"; then
 146   STRINGIFY=astring.sed
 147 else
 148   STRINGIFY=ostring.sed
 149 fi
 150 AC_SUBST(STRINGIFY)
 151
 152 # target-specific stuff:
 153
 154 all_targets=
 155 EMUL=
 156 all_emuls=
 157 all_emul_extras=
 158 all_libpath=
 159
 160 dnl We need to get an arbitrary number of tdir definitions into
 161 dnl Makefile.  We can't do it using AC_SUBST, because autoconf does
 162 dnl not permit literal newlines in an AC_SUBST variables.  So we use a
 163 dnl file.
 164 rm -f tdirs
 165
 166 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 167 do
 168   if test "$targ_alias" = "all"; then
 169     all_targets=true
 170   else
 171     # Canonicalize the secondary target names.
 172     result=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $targ_alias 2>/dev/null`
 173     if test -n "$result"; then
 174         targ=$result
 175     else
 176         targ=$targ_alias
 177     fi
 178
 179     . ${srcdir}/configure.tgt
 180
 181     if test "$targ" = "$target"; then
 182       EMUL=$targ_emul
 183     fi
 184
 185     for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
 186         case " $all_emuls " in
 187         *" e${i}.o "*) ;;
 188         *)
 189           all_emuls="$all_emuls e${i}.o"
 190           eval result=\$tdir_$i
 191           test -z "$result" && result=$targ_alias
 192           echo tdir_$i=$result >> tdirs
 193           ;;
 194         esac
 195     done
 196
 197     for i in $targ_emul $targ_extra_libpath; do
 198         case " $all_libpath " in
 199         *" ${i} "*) ;;
 200         *)
 201           if test -z "$all_libpath"; then
 202             all_libpath=${i}
 203           else
 204             all_libpath="$all_libpath ${i}"
 205           fi
 206           ;;
 207         esac
 208     done
 209
 210     for i in $targ_extra_ofiles; do
 211         case " $all_emul_extras " in
 212         *" ${i} "*) ;;
 213         *)
 214           all_emul_extras="$all_emul_extras ${i}"
 215           ;;
 216         esac
 217     done
 218   fi
 219 done
 220
 221 AC_SUBST(EMUL)
 222
 223 TDIRS=tdirs
 224 AC_SUBST_FILE(TDIRS)
 225
 226 dnl FIXME: We will build a 64 bit BFD for a 64 bit host or a 64 bit
 227 dnl target, and in those cases we should also build the 64 bit
 228 dnl emulations.
 229 if test x${all_targets} = xtrue; then
 230   if test x${want64} = xtrue; then
 231     EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
 232   else
 233     EMULATION_OFILES='$(ALL_EMULATIONS)'
 234   fi
 235   EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
 236 else
 237   EMULATION_OFILES=$all_emuls
 238   EMUL_EXTRA_OFILES=$all_emul_extras
 239 fi
 240 AC_SUBST(EMULATION_OFILES)
 241 AC_SUBST(EMUL_EXTRA_OFILES)
 242 AC_SUBST(LIB_PATH)
 243
 244 EMULATION_LIBPATH=$all_libpath
 245 AC_SUBST(EMULATION_LIBPATH)
 246
 247 if test x${enable_static} = xno; then
 248   TESTBFDLIB="--rpath ../bfd/.libs ../bfd/.libs/libbfd.so"
 249 else
 250   TESTBFDLIB="../bfd/.libs/libbfd.a"
 251 fi
 252 AC_SUBST(TESTBFDLIB)
 253
 254 target_vendor=${target_vendor=$host_vendor}
 255 case "$target_vendor" in
 256   hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
 257   *)  EXTRA_SHLIB_EXTENSION= ;;
 258 esac
 259
 260 case "$target_os" in
 261   lynxos) EXTRA_SHLIB_EXTENSION=".a" ;;
 262 esac
 263
 264 if test x${EXTRA_SHLIB_EXTENSION} != x ; then
 265   AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
 266    [Additional extension a shared object might have.])
 267 fi
 268
 269 AC_OUTPUT(Makefile po/Makefile.in:po/Make-in,
 270 [sed -e '/POTFILES =/r po/POTFILES' po/Makefile.in > po/Makefile])