1 dnl Process this file with autoconf to produce a configure script
5 AC_CONFIG_SRCDIR(ldmain.c)
11 BFD_VERSION=`sed -n -e 's/^.._INIT_AUTOMAKE.*,[ ]*\([^ ]*\)[ ]*).*/\1/p' < ${srcdir}/../bfd/configure.in`
13 AM_INIT_AUTOMAKE(ld, ${BFD_VERSION})
15 AC_ARG_WITH(lib-path, [ --with-lib-path=dir1:dir2... set default LIB_PATH],LIB_PATH=$withval)
16 AC_ARG_ENABLE(targets,
17 [ --enable-targets alternative target configurations],
18 [case "${enableval}" in
19 yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
21 no) enable_targets= ;;
22 *) enable_targets=$enableval ;;
24 AC_ARG_ENABLE(64-bit-bfd,
25 [ --enable-64-bit-bfd 64-bit support (on hosts with narrower word sizes)],
26 [case "${enableval}" in
29 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
30 esac],[want64=false])dnl
33 [ --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
35 case ${with_sysroot} in
36 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
37 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
40 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
43 if test "x$prefix" = xNONE; then
44 test_prefix=/usr/local
48 if test "x$exec_prefix" = xNONE; then
49 test_exec_prefix=$test_prefix
51 test_exec_prefix=$exec_prefix
53 case ${TARGET_SYSTEM_ROOT} in
54 "${test_prefix}"|"${test_prefix}/"*|\
55 "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
56 '${prefix}'|'${prefix}/'*|\
57 '${exec_prefix}'|'${exec_prefix}/'*)
58 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
59 TARGET_SYSTEM_ROOT_DEFINE="$t"
65 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
68 AC_SUBST(TARGET_SYSTEM_ROOT)
69 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
72 AS_HELP_STRING([--enable-got=<type>],
73 [GOT handling scheme (target, single, negative, multigot)]),
74 [case "${enableval}" in
75 target | single | negative | multigot) got_handling=$enableval ;;
76 *) AC_MSG_ERROR(bad value ${enableval} for --enable-got option) ;;
78 [got_handling=target])
80 case "${got_handling}" in
82 AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_TARGET_DEFAULT],
83 [Define to choose default GOT handling scheme]) ;;
85 AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_SINGLE],
86 [Define to choose default GOT handling scheme]) ;;
88 AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_NEGATIVE],
89 [Define to choose default GOT handling scheme]) ;;
91 AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_MULTIGOT],
92 [Define to choose default GOT handling scheme]) ;;
93 *) AC_MSG_ERROR(bad value ${got_handling} for --enable-got option) ;;
98 AC_CONFIG_HEADERS([config.h:config.in])
100 if test -z "$target" ; then
101 AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
103 if test -z "$host" ; then
104 AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
107 # host-specific stuff:
111 AC_USE_SYSTEM_EXTENSIONS
116 ALL_LINGUAS="fr sv tr es da vi zh_CN zh_TW ga fi"
117 ZW_GNU_GETTEXT_SISTER_DIR
126 AM_CONDITIONAL(GENINSRC_NEVER, false)
128 . ${srcdir}/configure.host
131 AC_SUBST(HOSTING_CRT0)
132 AC_SUBST(HOSTING_LIBS)
133 AC_SUBST(NATIVE_LIB_DIRS)
135 AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h elf-hints.h limits.h sys/param.h)
136 AC_CHECK_FUNCS(glob mkstemp realpath sbrk waitpid)
139 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
140 AC_CACHE_VAL(ld_cv_decl_getopt_unistd_h,
141 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
142 ld_cv_decl_getopt_unistd_h=yes, ld_cv_decl_getopt_unistd_h=no)])
143 AC_MSG_RESULT($ld_cv_decl_getopt_unistd_h)
144 if test $ld_cv_decl_getopt_unistd_h = yes; then
145 AC_DEFINE([HAVE_DECL_GETOPT], 1,
146 [Is the prototype for getopt in <unistd.h> in the expected format?])
151 AC_CHECK_DECLS([strstr, free, sbrk, getenv, environ])
153 # Link in zlib if we can. This is needed only for the bootstrap tests
154 # right now, since those tests use libbfd, which depends on zlib.
155 AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)])
157 # When converting linker scripts into strings for use in emulation
158 # files, use astring.sed if the compiler supports ANSI string
159 # concatenation, or ostring.sed otherwise. This is to support the
160 # broken Microsoft MSVC compiler, which limits the length of string
161 # constants, while still supporting pre-ANSI compilers which do not
162 # support string concatenation.
163 AC_MSG_CHECKING([whether ANSI C string concatenation works])
164 AC_CACHE_VAL(ld_cv_string_concatenation,
165 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [char *a = "a" "a";])],
166 ld_cv_string_concatenation=yes,
167 ld_cv_string_concatenation=no)])
168 AC_MSG_RESULT($ld_cv_string_concatenation)
169 if test "$ld_cv_string_concatenation" = "yes"; then
170 STRINGIFY=astring.sed
172 STRINGIFY=ostring.sed
176 # target-specific stuff:
184 dnl We need to get an arbitrary number of tdir definitions into
185 dnl Makefile. We can't do it using AC_SUBST, because autoconf does
186 dnl not permit literal newlines in an AC_SUBST variables. So we use a
190 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
192 if test "$targ_alias" = "all"; then
195 # Canonicalize the secondary target names.
196 result=`$ac_config_sub $targ_alias 2>/dev/null`
197 if test -n "$result"; then
203 . ${srcdir}/configure.tgt
205 if test "$targ" = "$target"; then
209 if test x${want64} = xfalse; then
210 . ${srcdir}/../bfd/config.bfd
213 if test x${want64} = xtrue; then
214 targ_extra_emuls="$targ_extra_emuls $targ64_extra_emuls"
215 targ_extra_libpath="$targ_extra_libpath $targ64_extra_libpath"
218 for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
219 case " $all_emuls " in
222 all_emuls="$all_emuls e${i}.o"
223 eval result=\$tdir_$i
224 test -z "$result" && result=$targ_alias
225 echo tdir_$i=$result >> tdirs
230 for i in $targ_emul $targ_extra_libpath; do
231 case " $all_libpath " in
234 if test -z "$all_libpath"; then
237 all_libpath="$all_libpath ${i}"
243 for i in $targ_extra_ofiles; do
244 case " $all_emul_extras " in
247 all_emul_extras="$all_emul_extras ${i}"
259 if test x${all_targets} = xtrue; then
260 if test x${want64} = xfalse; then
261 AC_CHECK_SIZEOF(long)
262 if test "x${ac_cv_sizeof_long}" = "x8"; then
266 if test x${want64} = xtrue; then
267 EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
269 EMULATION_OFILES='$(ALL_EMULATIONS)'
271 EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
273 EMULATION_OFILES=$all_emuls
274 EMUL_EXTRA_OFILES=$all_emul_extras
276 AC_SUBST(EMULATION_OFILES)
277 AC_SUBST(EMUL_EXTRA_OFILES)
280 EMULATION_LIBPATH=$all_libpath
281 AC_SUBST(EMULATION_LIBPATH)
283 if test x${enable_static} = xno; then
284 TESTBFDLIB="--rpath ../bfd/.libs ../bfd/.libs/libbfd.so"
286 TESTBFDLIB="../bfd/.libs/libbfd.a"
290 target_vendor=${target_vendor=$host_vendor}
291 case "$target_vendor" in
292 hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
293 *) EXTRA_SHLIB_EXTENSION= ;;
297 lynxos) EXTRA_SHLIB_EXTENSION=".a" ;;
300 if test x${EXTRA_SHLIB_EXTENSION} != x ; then
301 AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
302 [Additional extension a shared object might have.])
305 dnl Required by html and install-html
306 AC_SUBST(datarootdir)
310 AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)