1 dnl Process this file with autoconf to produce a configure script
9 AM_INIT_AUTOMAKE(ld, 2.11.1)
13 AC_ARG_ENABLE(targets,
14 [ --enable-targets alternative target configurations],
15 [case "${enableval}" in
16 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
18 no) enable_targets= ;;
19 *) enable_targets=$enableval ;;
21 AC_ARG_ENABLE(64-bit-bfd,
22 [ --enable-64-bit-bfd 64-bit support (on hosts with narrower word sizes)],
23 [case "${enableval}" in
26 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
27 esac],[want64=false])dnl
29 build_warnings="-W -Wall"
30 AC_ARG_ENABLE(build-warnings,
31 [ --enable-build-warnings Enable build-time compiler warnings if gcc is used],
32 [case "${enableval}" in
34 no) build_warnings="-w";;
35 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
36 build_warnings="${build_warnings} ${t}";;
37 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
38 build_warnings="${t} ${build_warnings}";;
39 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
41 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
42 echo "Setting warning flags = $build_warnings" 6>&1
45 if test "x${build_warnings}" != x -a "x$GCC" = xyes ; then
46 WARN_CFLAGS="${build_warnings}"
50 AM_CONFIG_HEADER(config.h:config.in)
52 if test -z "$target" ; then
53 AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
55 if test -z "$host" ; then
56 AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
59 # host-specific stuff:
74 . ${srcdir}/configure.host
77 AC_SUBST(HOSTING_CRT0)
78 AC_SUBST(HOSTING_LIBS)
79 AC_SUBST(NATIVE_LIB_DIRS)
81 AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
87 BFD_NEED_DECLARATION(strstr)
88 BFD_NEED_DECLARATION(free)
89 BFD_NEED_DECLARATION(sbrk)
90 BFD_NEED_DECLARATION(getenv)
91 BFD_NEED_DECLARATION(environ)
93 # When converting linker scripts into strings for use in emulation
94 # files, use astring.sed if the compiler supports ANSI string
95 # concatenation, or ostring.sed otherwise. This is to support the
96 # broken Microsoft MSVC compiler, which limits the length of string
97 # constants, while still supporting pre-ANSI compilers which do not
98 # support string concatenation.
99 AC_MSG_CHECKING([whether ANSI C string concatenation works])
100 AC_CACHE_VAL(ld_cv_string_concatenation,
101 [AC_TRY_COMPILE(,[char *a = "a" "a";],
102 [ld_cv_string_concatenation=yes],
103 [ld_cv_string_concatenation=no])])
104 AC_MSG_RESULT($ld_cv_string_concatenation)
105 if test "$ld_cv_string_concatenation" = "yes"; then
106 STRINGIFY=astring.sed
108 STRINGIFY=ostring.sed
112 # target-specific stuff:
120 dnl We need to get an arbitrary number of tdir definitions into
121 dnl Makefile. We can't do it using AC_SUBST, because autoconf does
122 dnl not permit literal newlines in an AC_SUBST variables. So we use a
126 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
128 if test "$targ_alias" = "all"; then
131 # Canonicalize the secondary target names.
132 result=`$ac_config_sub $targ_alias 2>/dev/null`
133 if test -n "$result"; then
139 . ${srcdir}/configure.tgt
141 if test "$targ" = "$target"; then
145 for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
146 case " $all_emuls " in
149 all_emuls="$all_emuls e${i}.o"
150 eval result=\$tdir_$i
151 test -z "$result" && result=$targ_alias
152 echo tdir_$i=$result >> tdirs
157 for i in $targ_emul $targ_extra_libpath; do
158 case " $all_libpath " in
161 if test -z "$all_libpath"; then
164 all_libpath="$all_libpath ${i}"
170 for i in $targ_extra_ofiles; do
171 case " $all_emul_extras " in
174 all_emul_extras="$all_emul_extras ${i}"
186 dnl FIXME: We will build a 64 bit BFD for a 64 bit host or a 64 bit
187 dnl target, and in those cases we should also build the 64 bit
189 if test x${all_targets} = xtrue; then
190 if test x${want64} = xtrue; then
191 EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
193 EMULATION_OFILES='$(ALL_EMULATIONS)'
195 EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
197 EMULATION_OFILES=$all_emuls
198 EMUL_EXTRA_OFILES=$all_emul_extras
200 AC_SUBST(EMULATION_OFILES)
201 AC_SUBST(EMUL_EXTRA_OFILES)
203 EMULATION_LIBPATH=$all_libpath
204 AC_SUBST(EMULATION_LIBPATH)
206 if test x${enable_static} = xno; then
207 TESTBFDLIB="--rpath ../bfd/.libs ../bfd/.libs/libbfd.so"
209 TESTBFDLIB="../bfd/.libs/libbfd.a"
213 target_vendor=${target_vendor=$host_vendor}
214 case "$target_vendor" in
215 hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
216 *) EXTRA_SHLIB_EXTENSION= ;;
218 if test x${EXTRA_SHLIB_EXTENSION} != x ; then
219 AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
220 [Additional extension a shared object might have.])
223 AC_OUTPUT(Makefile po/Makefile.in:po/Make-in,
224 [sed -e '/POTFILES =/r po/POTFILES' po/Makefile.in > po/Makefile])