| 1 | dnl Process this file with autoconf to produce a configure script |
| 2 | dnl |
| 3 | dnl Copyright 2012 Free Software Foundation |
| 4 | dnl |
| 5 | dnl This file is free software; you can redistribute it and/or modify |
| 6 | dnl it under the terms of the GNU General Public License as published by |
| 7 | dnl the Free Software Foundation; either version 3 of the License, or |
| 8 | dnl (at your option) any later version. |
| 9 | dnl |
| 10 | dnl This program is distributed in the hope that it will be useful, |
| 11 | dnl but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | dnl GNU General Public License for more details. |
| 14 | dnl |
| 15 | dnl You should have received a copy of the GNU General Public License |
| 16 | dnl along with this program; see the file COPYING3. If not see |
| 17 | dnl <http://www.gnu.org/licenses/>. |
| 18 | dnl |
| 19 | |
| 20 | AC_PREREQ(2.59) |
| 21 | AC_INIT |
| 22 | AC_CONFIG_SRCDIR(ldmain.c) |
| 23 | |
| 24 | AC_CANONICAL_TARGET |
| 25 | AC_CANONICAL_BUILD |
| 26 | AC_ISC_POSIX |
| 27 | |
| 28 | changequote(,)dnl |
| 29 | BFD_VERSION=`${srcdir}/../bfd/configure --version | sed -n -e '1s,.* ,,p'` |
| 30 | changequote([,])dnl |
| 31 | AM_INIT_AUTOMAKE(ld, ${BFD_VERSION}) |
| 32 | AM_MAINTAINER_MODE |
| 33 | |
| 34 | AC_ARG_WITH(lib-path, [ --with-lib-path=dir1:dir2... set default LIB_PATH],LIB_PATH=$withval) |
| 35 | AC_ARG_ENABLE(targets, |
| 36 | [ --enable-targets alternative target configurations], |
| 37 | [case "${enableval}" in |
| 38 | yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all') |
| 39 | ;; |
| 40 | no) enable_targets= ;; |
| 41 | *) enable_targets=$enableval ;; |
| 42 | esac])dnl |
| 43 | AC_ARG_ENABLE(64-bit-bfd, |
| 44 | [ --enable-64-bit-bfd 64-bit support (on hosts with narrower word sizes)], |
| 45 | [case "${enableval}" in |
| 46 | yes) want64=true ;; |
| 47 | no) want64=false ;; |
| 48 | *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;; |
| 49 | esac],[want64=false])dnl |
| 50 | |
| 51 | AC_ARG_WITH(sysroot, |
| 52 | [ --with-sysroot[=DIR] Search for usr/lib et al within DIR.], |
| 53 | [ |
| 54 | case ${with_sysroot} in |
| 55 | yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;; |
| 56 | *) TARGET_SYSTEM_ROOT=$with_sysroot ;; |
| 57 | esac |
| 58 | |
| 59 | TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"' |
| 60 | use_sysroot=yes |
| 61 | |
| 62 | if test "x$prefix" = xNONE; then |
| 63 | test_prefix=/usr/local |
| 64 | else |
| 65 | test_prefix=$prefix |
| 66 | fi |
| 67 | if test "x$exec_prefix" = xNONE; then |
| 68 | test_exec_prefix=$test_prefix |
| 69 | else |
| 70 | test_exec_prefix=$exec_prefix |
| 71 | fi |
| 72 | case ${TARGET_SYSTEM_ROOT} in |
| 73 | "${test_prefix}"|"${test_prefix}/"*|\ |
| 74 | "${test_exec_prefix}"|"${test_exec_prefix}/"*|\ |
| 75 | '${prefix}'|'${prefix}/'*|\ |
| 76 | '${exec_prefix}'|'${exec_prefix}/'*) |
| 77 | t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE" |
| 78 | TARGET_SYSTEM_ROOT_DEFINE="$t" |
| 79 | ;; |
| 80 | esac |
| 81 | ], [ |
| 82 | use_sysroot=no |
| 83 | TARGET_SYSTEM_ROOT= |
| 84 | TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"' |
| 85 | ]) |
| 86 | AC_SUBST(use_sysroot) |
| 87 | AC_SUBST(TARGET_SYSTEM_ROOT) |
| 88 | AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE) |
| 89 | |
| 90 | dnl Use --enable-gold to decide if this linker should be the default. |
| 91 | dnl "install_as_default" is set to false if gold is the default linker. |
| 92 | dnl "installed_linker" is the installed BFD linker name. |
| 93 | AC_ARG_ENABLE(gold, |
| 94 | [[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]], |
| 95 | [case "${enableval}" in |
| 96 | default) |
| 97 | install_as_default=no |
| 98 | installed_linker=ld.bfd |
| 99 | ;; |
| 100 | yes|no) |
| 101 | install_as_default=yes |
| 102 | installed_linker=ld.bfd |
| 103 | ;; |
| 104 | *) |
| 105 | AC_MSG_ERROR([invalid --enable-gold argument]) |
| 106 | ;; |
| 107 | esac], |
| 108 | [install_as_default=yes |
| 109 | installed_linker=ld.bfd]) |
| 110 | AC_SUBST(install_as_default) |
| 111 | AC_SUBST(installed_linker) |
| 112 | |
| 113 | AC_ARG_ENABLE([got], |
| 114 | AS_HELP_STRING([--enable-got=<type>], |
| 115 | [GOT handling scheme (target, single, negative, multigot)]), |
| 116 | [case "${enableval}" in |
| 117 | target | single | negative | multigot) got_handling=$enableval ;; |
| 118 | *) AC_MSG_ERROR(bad value ${enableval} for --enable-got option) ;; |
| 119 | esac], |
| 120 | [got_handling=target]) |
| 121 | |
| 122 | case "${got_handling}" in |
| 123 | target) |
| 124 | AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_TARGET_DEFAULT], |
| 125 | [Define to choose default GOT handling scheme]) ;; |
| 126 | single) |
| 127 | AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_SINGLE], |
| 128 | [Define to choose default GOT handling scheme]) ;; |
| 129 | negative) |
| 130 | AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_NEGATIVE], |
| 131 | [Define to choose default GOT handling scheme]) ;; |
| 132 | multigot) |
| 133 | AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_MULTIGOT], |
| 134 | [Define to choose default GOT handling scheme]) ;; |
| 135 | *) AC_MSG_ERROR(bad value ${got_handling} for --enable-got option) ;; |
| 136 | esac |
| 137 | |
| 138 | AM_BINUTILS_WARNINGS |
| 139 | |
| 140 | AM_LC_MESSAGES |
| 141 | |
| 142 | AC_CONFIG_HEADERS([config.h:config.in]) |
| 143 | |
| 144 | # PR 14072 |
| 145 | AH_VERBATIM([00_CONFIG_H_CHECK], |
| 146 | [/* Check that config.h is #included before system headers |
| 147 | (this works only for glibc, but that should be enough). */ |
| 148 | #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__) |
| 149 | # error config.h must be #included before system headers |
| 150 | #endif |
| 151 | #define __CONFIG_H__ 1]) |
| 152 | |
| 153 | if test -z "$target" ; then |
| 154 | AC_MSG_ERROR(Unrecognized target system type; please check config.sub.) |
| 155 | fi |
| 156 | if test -z "$host" ; then |
| 157 | AC_MSG_ERROR(Unrecognized host system type; please check config.sub.) |
| 158 | fi |
| 159 | |
| 160 | # host-specific stuff: |
| 161 | |
| 162 | AC_PROG_CC |
| 163 | AC_PROG_CXX |
| 164 | AC_GNU_SOURCE |
| 165 | AC_USE_SYSTEM_EXTENSIONS |
| 166 | ACX_LARGEFILE |
| 167 | AC_PROG_INSTALL |
| 168 | |
| 169 | LT_INIT |
| 170 | |
| 171 | ALL_LINGUAS="fr sv tr es da vi zh_CN zh_TW ga fi id bg it uk" |
| 172 | ZW_GNU_GETTEXT_SISTER_DIR |
| 173 | AM_PO_SUBDIRS |
| 174 | |
| 175 | AC_EXEEXT |
| 176 | |
| 177 | AC_PROG_YACC |
| 178 | AM_PROG_LEX |
| 179 | |
| 180 | AM_MAINTAINER_MODE |
| 181 | AM_CONDITIONAL(GENINSRC_NEVER, false) |
| 182 | ACX_PROG_CMP_IGNORE_INITIAL |
| 183 | |
| 184 | . ${srcdir}/configure.host |
| 185 | |
| 186 | AC_SUBST(HDEFINES) |
| 187 | AC_SUBST(HOSTING_CRT0) |
| 188 | AC_SUBST(HOSTING_SCRT0) |
| 189 | AC_SUBST(HOSTING_LIBS) |
| 190 | AC_SUBST(HOSTING_SLIBS) |
| 191 | AC_SUBST(NATIVE_LIB_DIRS) |
| 192 | |
| 193 | AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h elf-hints.h limits.h locale.h sys/param.h) |
| 194 | AC_CHECK_HEADERS(fcntl.h sys/file.h sys/time.h sys/stat.h) |
| 195 | ACX_HEADER_STRING |
| 196 | AC_CHECK_FUNCS(glob mkstemp realpath sbrk setlocale waitpid) |
| 197 | AC_CHECK_FUNCS(open lseek close) |
| 198 | AC_HEADER_DIRENT |
| 199 | |
| 200 | # Check for dlopen support and enable plugins if possible. |
| 201 | enable_plugins=yes |
| 202 | AC_CHECK_HEADER([dlfcn.h],[],[enable_plugins=no],[AC_INCLUDES_DEFAULT]) |
| 203 | AC_SEARCH_LIBS([dlopen],[dl],[],[enable_plugins=no],[]) |
| 204 | AC_CHECK_FUNCS([dlopen dlsym dlclose],[],[enable_plugins=no]) |
| 205 | # We also support plugins on Windows (MinGW). |
| 206 | if test x$enable_plugins = xno ; then |
| 207 | AC_CHECK_HEADERS([windows.h],[enable_plugins=yes],[],[AC_INCLUDES_DEFAULT]) |
| 208 | fi |
| 209 | AM_CONDITIONAL([ENABLE_PLUGINS], [test x$enable_plugins = xyes]) |
| 210 | |
| 211 | AC_ARG_ENABLE(initfini-array, |
| 212 | [ --enable-initfini-array use .init_array/.fini_array sections], |
| 213 | [], [ |
| 214 | AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support, |
| 215 | gcc_cv_initfini_array, [dnl |
| 216 | if test "x${build}" = "x${target}" ; then |
| 217 | AC_RUN_IFELSE([AC_LANG_SOURCE([ |
| 218 | static int x = -1; |
| 219 | int main (void) { return x; } |
| 220 | int foo (void) { x = 0; } |
| 221 | int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;])], |
| 222 | [gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no], |
| 223 | [gcc_cv_initfini_array=no]) |
| 224 | else |
| 225 | gcc_cv_initfini_array=no |
| 226 | fi]) |
| 227 | enable_initfini_array=$gcc_cv_initfini_array |
| 228 | ]) |
| 229 | AC_SUBST(enable_initfini_array) |
| 230 | if test $enable_initfini_array = yes; then |
| 231 | AC_DEFINE(HAVE_INITFINI_ARRAY, 1, |
| 232 | [Define .init_array/.fini_array sections are available and working.]) |
| 233 | fi |
| 234 | |
| 235 | AC_MSG_CHECKING(for a known getopt prototype in unistd.h) |
| 236 | AC_CACHE_VAL(ld_cv_decl_getopt_unistd_h, |
| 237 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])], |
| 238 | ld_cv_decl_getopt_unistd_h=yes, ld_cv_decl_getopt_unistd_h=no)]) |
| 239 | AC_MSG_RESULT($ld_cv_decl_getopt_unistd_h) |
| 240 | if test $ld_cv_decl_getopt_unistd_h = yes; then |
| 241 | AC_DEFINE([HAVE_DECL_GETOPT], 1, |
| 242 | [Is the prototype for getopt in <unistd.h> in the expected format?]) |
| 243 | fi |
| 244 | |
| 245 | BFD_BINARY_FOPEN |
| 246 | |
| 247 | AC_CHECK_DECLS([strstr, free, sbrk, getenv, environ]) |
| 248 | |
| 249 | # Link in zlib if we can. This is needed only for the bootstrap tests |
| 250 | # right now, since those tests use libbfd, which depends on zlib. |
| 251 | AM_ZLIB |
| 252 | |
| 253 | # When converting linker scripts into strings for use in emulation |
| 254 | # files, use astring.sed if the compiler supports ANSI string |
| 255 | # concatenation, or ostring.sed otherwise. This is to support the |
| 256 | # broken Microsoft MSVC compiler, which limits the length of string |
| 257 | # constants, while still supporting pre-ANSI compilers which do not |
| 258 | # support string concatenation. |
| 259 | AC_MSG_CHECKING([whether ANSI C string concatenation works]) |
| 260 | AC_CACHE_VAL(ld_cv_string_concatenation, |
| 261 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [char *a = "a" "a";])], |
| 262 | ld_cv_string_concatenation=yes, |
| 263 | ld_cv_string_concatenation=no)]) |
| 264 | AC_MSG_RESULT($ld_cv_string_concatenation) |
| 265 | if test "$ld_cv_string_concatenation" = "yes"; then |
| 266 | STRINGIFY=astring.sed |
| 267 | else |
| 268 | STRINGIFY=ostring.sed |
| 269 | fi |
| 270 | AC_SUBST(STRINGIFY) |
| 271 | |
| 272 | # target-specific stuff: |
| 273 | |
| 274 | all_targets= |
| 275 | EMUL= |
| 276 | all_emuls= |
| 277 | all_emul_extras= |
| 278 | all_libpath= |
| 279 | |
| 280 | dnl We need to get an arbitrary number of tdir definitions into |
| 281 | dnl Makefile. We can't do it using AC_SUBST, because autoconf does |
| 282 | dnl not permit literal newlines in an AC_SUBST variables. So we use a |
| 283 | dnl file. |
| 284 | rm -f tdirs |
| 285 | |
| 286 | # If the host is 64-bit, then we enable 64-bit targets by default. |
| 287 | # This is consistent with what ../bfd/configure.in does. |
| 288 | if test x${want64} = xfalse; then |
| 289 | AC_CHECK_SIZEOF(void *) |
| 290 | if test "x${ac_cv_sizeof_void_p}" = "x8"; then |
| 291 | want64=true |
| 292 | fi |
| 293 | fi |
| 294 | |
| 295 | for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'` |
| 296 | do |
| 297 | if test "$targ_alias" = "all"; then |
| 298 | all_targets=true |
| 299 | else |
| 300 | # Canonicalize the secondary target names. |
| 301 | result=`$ac_config_sub $targ_alias 2>/dev/null` |
| 302 | if test -n "$result"; then |
| 303 | targ=$result |
| 304 | else |
| 305 | targ=$targ_alias |
| 306 | fi |
| 307 | |
| 308 | . ${srcdir}/configure.tgt |
| 309 | |
| 310 | if test "$targ" = "$target"; then |
| 311 | EMUL=$targ_emul |
| 312 | fi |
| 313 | |
| 314 | if test x${want64} = xfalse; then |
| 315 | . ${srcdir}/../bfd/config.bfd |
| 316 | fi |
| 317 | |
| 318 | if test x${want64} = xtrue; then |
| 319 | targ_extra_emuls="$targ_extra_emuls $targ64_extra_emuls" |
| 320 | targ_extra_libpath="$targ_extra_libpath $targ64_extra_libpath" |
| 321 | fi |
| 322 | |
| 323 | for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do |
| 324 | case " $all_emuls " in |
| 325 | *" e${i}.o "*) ;; |
| 326 | *) |
| 327 | all_emuls="$all_emuls e${i}.o" |
| 328 | eval result=\$tdir_$i |
| 329 | test -z "$result" && result=$targ_alias |
| 330 | echo tdir_$i=$result >> tdirs |
| 331 | ;; |
| 332 | esac |
| 333 | done |
| 334 | |
| 335 | for i in $targ_emul $targ_extra_libpath; do |
| 336 | case " $all_libpath " in |
| 337 | *" ${i} "*) ;; |
| 338 | *) |
| 339 | if test -z "$all_libpath"; then |
| 340 | all_libpath=${i} |
| 341 | else |
| 342 | all_libpath="$all_libpath ${i}" |
| 343 | fi |
| 344 | ;; |
| 345 | esac |
| 346 | done |
| 347 | |
| 348 | for i in $targ_extra_ofiles; do |
| 349 | case " $all_emul_extras " in |
| 350 | *" ${i} "*) ;; |
| 351 | *) |
| 352 | all_emul_extras="$all_emul_extras ${i}" |
| 353 | ;; |
| 354 | esac |
| 355 | done |
| 356 | fi |
| 357 | done |
| 358 | |
| 359 | AC_SUBST(EMUL) |
| 360 | |
| 361 | TDIRS=tdirs |
| 362 | AC_SUBST_FILE(TDIRS) |
| 363 | |
| 364 | if test x${all_targets} = xtrue; then |
| 365 | if test x${want64} = xtrue; then |
| 366 | EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)' |
| 367 | else |
| 368 | EMULATION_OFILES='$(ALL_EMULATIONS)' |
| 369 | fi |
| 370 | EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)' |
| 371 | else |
| 372 | EMULATION_OFILES=$all_emuls |
| 373 | EMUL_EXTRA_OFILES=$all_emul_extras |
| 374 | fi |
| 375 | AC_SUBST(EMULATION_OFILES) |
| 376 | AC_SUBST(EMUL_EXTRA_OFILES) |
| 377 | AC_SUBST(LIB_PATH) |
| 378 | |
| 379 | EMULATION_LIBPATH=$all_libpath |
| 380 | AC_SUBST(EMULATION_LIBPATH) |
| 381 | |
| 382 | if test x${enable_static} = xno; then |
| 383 | TESTBFDLIB="--rpath ../bfd/.libs ../bfd/.libs/libbfd.so" |
| 384 | else |
| 385 | TESTBFDLIB="../bfd/.libs/libbfd.a" |
| 386 | fi |
| 387 | AC_SUBST(TESTBFDLIB) |
| 388 | |
| 389 | target_vendor=${target_vendor=$host_vendor} |
| 390 | case "$target_vendor" in |
| 391 | hp) EXTRA_SHLIB_EXTENSION=".sl" ;; |
| 392 | *) EXTRA_SHLIB_EXTENSION= ;; |
| 393 | esac |
| 394 | |
| 395 | case "$target_os" in |
| 396 | lynxos) EXTRA_SHLIB_EXTENSION=".a" ;; |
| 397 | esac |
| 398 | |
| 399 | if test x${EXTRA_SHLIB_EXTENSION} != x ; then |
| 400 | AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION", |
| 401 | [Additional extension a shared object might have.]) |
| 402 | fi |
| 403 | |
| 404 | dnl Required by html, pdf, install-pdf and install-html |
| 405 | AC_SUBST(datarootdir) |
| 406 | AC_SUBST(docdir) |
| 407 | AC_SUBST(htmldir) |
| 408 | AC_SUBST(pdfdir) |
| 409 | |
| 410 | AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in) |
| 411 | AC_OUTPUT |