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="$t"
  58    ;;
  59  esac
  60 ], [
  61  use_sysroot=no
  62  TARGET_SYSTEM_ROOT=
  63  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
  64 ])
  65 AC_SUBST(use_sysroot)
  66 AC_SUBST(TARGET_SYSTEM_ROOT)
  67 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
  68
  69 dnl FIXME: The following is bfd/warning.m4 contents expanded
  70 dnl When converting to current autotools, please replace with
  71 dnl AM_BINUTILS_WARNINGS
  72 WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
  73
  74 AC_ARG_ENABLE(werror,
  75   [  --enable-werror    treat compile warnings as errors],
  76   [case "${enableval}" in
  77      yes | y) ERROR_ON_WARNING="yes" ;;
  78      no | n)  ERROR_ON_WARNING="no" ;;
  79      *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
  80    esac])
  81
  82 # Enable -Werror by default when using gcc
  83 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
  84     ERROR_ON_WARNING=yes
  85 fi
  86
  87 NO_WERROR=
  88 if test "${ERROR_ON_WARNING}" = yes ; then
  89     WARN_CFLAGS="$WARN_CFLAGS -Werror"
  90     NO_WERROR="-Wno-error"
  91 fi
  92
  93 AC_ARG_ENABLE(build-warnings,
  94 [  --enable-build-warnings Enable build-time compiler warnings],
  95 [case "${enableval}" in
  96   yes)  ;;
  97   no)   WARN_CFLAGS="-w";;
  98   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
  99         WARN_CFLAGS="${WARN_CFLAGS} ${t}";;
 100   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
 101         WARN_CFLAGS="${t} ${WARN_CFLAGS}";;
 102   *)    WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`;;
 103 esac])
 104
 105 if test x"$silent" != x"yes" && test x"$WARN_CFLAGS" != x""; then
 106   echo "Setting warning flags = $WARN_CFLAGS" 6>&1
 107 fi
 108
 109 AC_SUBST(WARN_CFLAGS)
 110 AC_SUBST(NO_WERROR)
 111
 112 AM_CONFIG_HEADER(config.h:config.in)
 113
 114 if test -z "$target" ; then
 115     AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
 116 fi
 117 if test -z "$host" ; then
 118     AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
 119 fi
 120
 121 # host-specific stuff:
 122
 123 AC_PROG_CC
 124 AC_PROG_INSTALL
 125
 126 ALL_LINGUAS="fr sv tr es da"
 127 CY_GNU_GETTEXT
 128
 129 AC_EXEEXT
 130
 131 AC_PROG_YACC
 132 AM_PROG_LEX
 133
 134 AM_MAINTAINER_MODE
 135
 136 . ${srcdir}/configure.host
 137
 138 AC_SUBST(HDEFINES)
 139 AC_SUBST(HOSTING_CRT0)
 140 AC_SUBST(HOSTING_LIBS)
 141 AC_SUBST(NATIVE_LIB_DIRS)
 142
 143 AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
 144 AC_CHECK_FUNCS(sbrk realpath glob)
 145 AC_HEADER_DIRENT
 146
 147 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 148 AC_CACHE_VAL(ld_cv_decl_getopt_unistd_h,
 149 [AC_TRY_COMPILE([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);],
 150 ld_cv_decl_getopt_unistd_h=yes, ld_cv_decl_getopt_unistd_h=no)])
 151 AC_MSG_RESULT($ld_cv_decl_getopt_unistd_h)
 152 if test $ld_cv_decl_getopt_unistd_h = yes; then
 153   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 154             [Is the prototype for getopt in <unistd.h> in the expected format?])
 155 fi
 156
 157 BFD_BINARY_FOPEN
 158
 159 BFD_NEED_DECLARATION(strstr)
 160 BFD_NEED_DECLARATION(free)
 161 BFD_NEED_DECLARATION(sbrk)
 162 BFD_NEED_DECLARATION(getenv)
 163 BFD_NEED_DECLARATION(environ)
 164
 165 # When converting linker scripts into strings for use in emulation
 166 # files, use astring.sed if the compiler supports ANSI string
 167 # concatenation, or ostring.sed otherwise.  This is to support the
 168 # broken Microsoft MSVC compiler, which limits the length of string
 169 # constants, while still supporting pre-ANSI compilers which do not
 170 # support string concatenation.
 171 AC_MSG_CHECKING([whether ANSI C string concatenation works])
 172 AC_CACHE_VAL(ld_cv_string_concatenation,
 173 [AC_TRY_COMPILE(,[char *a = "a" "a";],
 174   [ld_cv_string_concatenation=yes],
 175   [ld_cv_string_concatenation=no])])
 176 AC_MSG_RESULT($ld_cv_string_concatenation)
 177 if test "$ld_cv_string_concatenation" = "yes"; then
 178   STRINGIFY=astring.sed
 179 else
 180   STRINGIFY=ostring.sed
 181 fi
 182 AC_SUBST(STRINGIFY)
 183
 184 # target-specific stuff:
 185
 186 all_targets=
 187 EMUL=
 188 all_emuls=
 189 all_emul_extras=
 190 all_libpath=
 191
 192 dnl We need to get an arbitrary number of tdir definitions into
 193 dnl Makefile.  We can't do it using AC_SUBST, because autoconf does
 194 dnl not permit literal newlines in an AC_SUBST variables.  So we use a
 195 dnl file.
 196 rm -f tdirs
 197
 198 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 199 do
 200   if test "$targ_alias" = "all"; then
 201     all_targets=true
 202   else
 203     # Canonicalize the secondary target names.
 204     result=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $targ_alias 2>/dev/null`
 205     if test -n "$result"; then
 206         targ=$result
 207     else
 208         targ=$targ_alias
 209     fi
 210
 211     . ${srcdir}/configure.tgt
 212
 213     if test "$targ" = "$target"; then
 214       EMUL=$targ_emul
 215     fi
 216
 217     for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
 218         case " $all_emuls " in
 219         *" e${i}.o "*) ;;
 220         *)
 221           all_emuls="$all_emuls e${i}.o"
 222           eval result=\$tdir_$i
 223           test -z "$result" && result=$targ_alias
 224           echo tdir_$i=$result >> tdirs
 225           ;;
 226         esac
 227     done
 228
 229     for i in $targ_emul $targ_extra_libpath; do
 230         case " $all_libpath " in
 231         *" ${i} "*) ;;
 232         *)
 233           if test -z "$all_libpath"; then
 234             all_libpath=${i}
 235           else
 236             all_libpath="$all_libpath ${i}"
 237           fi
 238           ;;
 239         esac
 240     done
 241
 242     for i in $targ_extra_ofiles; do
 243         case " $all_emul_extras " in
 244         *" ${i} "*) ;;
 245         *)
 246           all_emul_extras="$all_emul_extras ${i}"
 247           ;;
 248         esac
 249     done
 250   fi
 251 done
 252
 253 AC_SUBST(EMUL)
 254
 255 TDIRS=tdirs
 256 AC_SUBST_FILE(TDIRS)
 257
 258 dnl FIXME: We will build a 64 bit BFD for a 64 bit host or a 64 bit
 259 dnl target, and in those cases we should also build the 64 bit
 260 dnl emulations.
 261 if test x${all_targets} = xtrue; then
 262   if test x${want64} = xtrue; then
 263     EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
 264   else
 265     EMULATION_OFILES='$(ALL_EMULATIONS)'
 266   fi
 267   EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
 268 else
 269   EMULATION_OFILES=$all_emuls
 270   EMUL_EXTRA_OFILES=$all_emul_extras
 271 fi
 272 AC_SUBST(EMULATION_OFILES)
 273 AC_SUBST(EMUL_EXTRA_OFILES)
 274 AC_SUBST(LIB_PATH)
 275
 276 EMULATION_LIBPATH=$all_libpath
 277 AC_SUBST(EMULATION_LIBPATH)
 278
 279 if test x${enable_static} = xno; then
 280   TESTBFDLIB="--rpath ../bfd/.libs ../bfd/.libs/libbfd.so"
 281 else
 282   TESTBFDLIB="../bfd/.libs/libbfd.a"
 283 fi
 284 AC_SUBST(TESTBFDLIB)
 285
 286 target_vendor=${target_vendor=$host_vendor}
 287 case "$target_vendor" in
 288   hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
 289   *)  EXTRA_SHLIB_EXTENSION= ;;
 290 esac
 291
 292 case "$target_os" in
 293   lynxos) EXTRA_SHLIB_EXTENSION=".a" ;;
 294 esac
 295
 296 if test x${EXTRA_SHLIB_EXTENSION} != x ; then
 297   AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
 298    [Additional extension a shared object might have.])
 299 fi
 300
 301 AC_OUTPUT(Makefile po/Makefile.in:po/Make-in,
 302 [sed -e '/POTFILES =/r po/POTFILES' po/Makefile.in > po/Makefile])