1 dnl Process this file with autoconf to produce a configure script
8 AM_INIT_AUTOMAKE(ld, 2.9.5)
12 AC_ARG_ENABLE(targets,
13 [ --enable-targets alternative target configurations],
14 [case "${enableval}" in
15 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
17 no) enable_targets= ;;
18 *) enable_targets=$enableval ;;
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
25 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
26 esac],[want64=false])dnl
28 AM_CONFIG_HEADER(config.h:config.in)
30 if test -z "$target" ; then
31 AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
33 if test -z "$host" ; then
34 AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
37 # host-specific stuff:
52 . ${srcdir}/configure.host
55 AC_SUBST(HOSTING_CRT0)
56 AC_SUBST(HOSTING_LIBS)
57 AC_SUBST(NATIVE_LIB_DIRS)
59 AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
65 BFD_NEED_DECLARATION(strstr)
66 BFD_NEED_DECLARATION(free)
67 BFD_NEED_DECLARATION(sbrk)
68 BFD_NEED_DECLARATION(getenv)
69 BFD_NEED_DECLARATION(environ)
71 # When converting linker scripts into strings for use in emulation
72 # files, use astring.sed if the compiler supports ANSI string
73 # concatenation, or ostring.sed otherwise. This is to support the
74 # broken Microsoft MSVC compiler, which limits the length of string
75 # constants, while still supporting pre-ANSI compilers which do not
76 # support string concatenation.
77 AC_MSG_CHECKING([whether ANSI C string concatenation works])
78 AC_CACHE_VAL(ld_cv_string_concatenation,
79 [AC_TRY_COMPILE(,[char *a = "a" "a";],
80 [ld_cv_string_concatenation=yes],
81 [ld_cv_string_concatenation=no])])
82 AC_MSG_RESULT($ld_cv_string_concatenation)
83 if test "$ld_cv_string_concatenation" = "yes"; then
90 # target-specific stuff:
98 dnl We need to get an arbitrary number of tdir definitions into
99 dnl Makefile. We can't do it using AC_SUBST, because autoconf does
100 dnl not permit literal newlines in an AC_SUBST variables. So we use a
104 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
106 if test "$targ_alias" = "all"; then
109 # Canonicalize the secondary target names.
110 result=`$ac_config_sub $targ_alias 2>/dev/null`
111 if test -n "$result"; then
117 . ${srcdir}/configure.tgt
119 if test "$targ" = "$target"; then
123 for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
124 case " $all_emuls " in
127 all_emuls="$all_emuls e${i}.o"
128 eval result=\$tdir_$i
129 test -z "$result" && result=$targ_alias
130 echo tdir_$i=$result >> tdirs
135 for i in $targ_emul $targ_extra_libpath; do
136 case " $all_libpath " in
139 if test -z "$all_libpath"; then
142 all_libpath="$all_libpath ${i}"
148 for i in $targ_extra_ofiles; do
149 case " $all_emul_extras " in
152 all_emul_extras="$all_emul_extras ${i}"
164 dnl FIXME: We will build a 64 bit BFD for a 64 bit host or a 64 bit
165 dnl target, and in those cases we should also build the 64 bit
167 if test x${all_targets} = xtrue; then
168 if test x${want64} = xtrue; then
169 EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
171 EMULATION_OFILES='$(ALL_EMULATIONS)'
173 EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
175 EMULATION_OFILES=$all_emuls
176 EMUL_EXTRA_OFILES=$all_emul_extras
178 AC_SUBST(EMULATION_OFILES)
179 AC_SUBST(EMUL_EXTRA_OFILES)
181 EMULATION_LIBPATH=$all_libpath
182 AC_SUBST(EMULATION_LIBPATH)
184 if test x${enable_static} = xno; then
185 TESTBFDLIB="--rpath ../bfd/.libs ../bfd/.libs/libbfd.so"
187 TESTBFDLIB="../bfd/.libs/libbfd.a"
191 target_vendor=${target_vendor=$host_vendor}
192 case "$target_vendor" in
193 hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
194 *) EXTRA_SHLIB_EXTENSION= ;;
196 if test x${EXTRA_SHLIB_EXTENSION} != x ; then
197 AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
198 [Additional extension a shared object might have.])
201 AC_OUTPUT(Makefile po/Makefile.in:po/Make-in,
202 [sed -e '/POTFILES =/r po/POTFILES' po/Makefile.in > po/Makefile])