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 ${enableval} for 64-bit-bfd option) ;;
  31 esac],[want64=false])dnl
  32
  33 build_warnings="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
  34 AC_ARG_ENABLE(build-warnings,
  35 [  --enable-build-warnings enable build-time compiler warnings if gcc is used],
  36 [case "${enableval}" in
  37   yes)  ;;
  38   no)   build_warnings="-w";;
  39   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
  40         build_warnings="${build_warnings} ${t}";;
  41   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
  42         build_warnings="${t} ${build_warnings}";;
  43   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
  44 esac
  45 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
  46   echo "Setting warning flags = $build_warnings" 6>&1
  47 fi])dnl
  48 WARN_CFLAGS=""
  49 if test "x${build_warnings}" != x -a "x$GCC" = xyes ; then
  50     WARN_CFLAGS="${build_warnings}"
  51 fi
  52 AC_SUBST(WARN_CFLAGS)
  53
  54 AM_CONFIG_HEADER(config.h:config.in)
  55
  56 if test -z "$target" ; then
  57     AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
  58 fi
  59 if test -z "$host" ; then
  60     AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
  61 fi
  62
  63 # host-specific stuff:
  64
  65 AC_PROG_CC
  66 AC_PROG_INSTALL
  67
  68 ALL_LINGUAS="fr sv tr es da"
  69 CY_GNU_GETTEXT
  70
  71 AC_EXEEXT
  72
  73 AC_PROG_YACC
  74 AM_PROG_LEX
  75
  76 AM_MAINTAINER_MODE
  77
  78 . ${srcdir}/configure.host
  79
  80 AC_SUBST(HDEFINES)
  81 AC_SUBST(HOSTING_CRT0)
  82 AC_SUBST(HOSTING_LIBS)
  83 AC_SUBST(NATIVE_LIB_DIRS)
  84
  85 AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
  86 AC_CHECK_FUNCS(sbrk realpath)
  87 AC_HEADER_DIRENT
  88
  89 BFD_BINARY_FOPEN
  90
  91 BFD_NEED_DECLARATION(strstr)
  92 BFD_NEED_DECLARATION(free)
  93 BFD_NEED_DECLARATION(sbrk)
  94 BFD_NEED_DECLARATION(getenv)
  95 BFD_NEED_DECLARATION(environ)
  96
  97 # When converting linker scripts into strings for use in emulation
  98 # files, use astring.sed if the compiler supports ANSI string
  99 # concatenation, or ostring.sed otherwise.  This is to support the
 100 # broken Microsoft MSVC compiler, which limits the length of string
 101 # constants, while still supporting pre-ANSI compilers which do not
 102 # support string concatenation.
 103 AC_MSG_CHECKING([whether ANSI C string concatenation works])
 104 AC_CACHE_VAL(ld_cv_string_concatenation,
 105 [AC_TRY_COMPILE(,[char *a = "a" "a";],
 106   [ld_cv_string_concatenation=yes],
 107   [ld_cv_string_concatenation=no])])
 108 AC_MSG_RESULT($ld_cv_string_concatenation)
 109 if test "$ld_cv_string_concatenation" = "yes"; then
 110   STRINGIFY=astring.sed
 111 else
 112   STRINGIFY=ostring.sed
 113 fi
 114 AC_SUBST(STRINGIFY)
 115
 116 # target-specific stuff:
 117
 118 all_targets=
 119 EMUL=
 120 all_emuls=
 121 all_emul_extras=
 122 all_libpath=
 123
 124 dnl We need to get an arbitrary number of tdir definitions into
 125 dnl Makefile.  We can't do it using AC_SUBST, because autoconf does
 126 dnl not permit literal newlines in an AC_SUBST variables.  So we use a
 127 dnl file.
 128 rm -f tdirs
 129
 130 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 131 do
 132   if test "$targ_alias" = "all"; then
 133     all_targets=true
 134   else
 135     # Canonicalize the secondary target names.
 136     result=`$ac_config_sub $targ_alias 2>/dev/null`
 137     if test -n "$result"; then
 138         targ=$result
 139     else
 140         targ=$targ_alias
 141     fi
 142
 143     . ${srcdir}/configure.tgt
 144
 145     if test "$targ" = "$target"; then
 146       EMUL=$targ_emul
 147     fi
 148
 149     for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
 150         case " $all_emuls " in
 151         *" e${i}.o "*) ;;
 152         *)
 153           all_emuls="$all_emuls e${i}.o"
 154           eval result=\$tdir_$i
 155           test -z "$result" && result=$targ_alias
 156           echo tdir_$i=$result >> tdirs
 157           ;;
 158         esac
 159     done
 160
 161     for i in $targ_emul $targ_extra_libpath; do
 162         case " $all_libpath " in
 163         *" ${i} "*) ;;
 164         *)
 165           if test -z "$all_libpath"; then
 166             all_libpath=${i}
 167           else
 168             all_libpath="$all_libpath ${i}"
 169           fi
 170           ;;
 171         esac
 172     done
 173
 174     for i in $targ_extra_ofiles; do
 175         case " $all_emul_extras " in
 176         *" ${i} "*) ;;
 177         *)
 178           all_emul_extras="$all_emul_extras ${i}"
 179           ;;
 180         esac
 181     done
 182   fi
 183 done
 184
 185 AC_SUBST(EMUL)
 186
 187 TDIRS=tdirs
 188 AC_SUBST_FILE(TDIRS)
 189
 190 dnl FIXME: We will build a 64 bit BFD for a 64 bit host or a 64 bit
 191 dnl target, and in those cases we should also build the 64 bit
 192 dnl emulations.
 193 if test x${all_targets} = xtrue; then
 194   if test x${want64} = xtrue; then
 195     EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
 196   else
 197     EMULATION_OFILES='$(ALL_EMULATIONS)'
 198   fi
 199   EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
 200 else
 201   EMULATION_OFILES=$all_emuls
 202   EMUL_EXTRA_OFILES=$all_emul_extras
 203 fi
 204 AC_SUBST(EMULATION_OFILES)
 205 AC_SUBST(EMUL_EXTRA_OFILES)
 206 AC_SUBST(LIB_PATH)
 207
 208 EMULATION_LIBPATH=$all_libpath
 209 AC_SUBST(EMULATION_LIBPATH)
 210
 211 if test x${enable_static} = xno; then
 212   TESTBFDLIB="--rpath ../bfd/.libs ../bfd/.libs/libbfd.so"
 213 else
 214   TESTBFDLIB="../bfd/.libs/libbfd.a"
 215 fi
 216 AC_SUBST(TESTBFDLIB)
 217
 218 target_vendor=${target_vendor=$host_vendor}
 219 case "$target_vendor" in
 220   hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
 221   *)  EXTRA_SHLIB_EXTENSION= ;;
 222 esac
 223 if test x${EXTRA_SHLIB_EXTENSION} != x ; then
 224   AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
 225    [Additional extension a shared object might have.])
 226 fi
 227
 228 AC_OUTPUT(Makefile po/Makefile.in:po/Make-in,
 229 [sed -e '/POTFILES =/r po/POTFILES' po/Makefile.in > po/Makefile])