1dnl configuration script for expat 2dnl Process this file with autoconf to produce a configure script. 3dnl __ __ _ 4dnl ___\ \/ /_ __ __ _| |_ 5dnl / _ \\ /| '_ \ / _` | __| 6dnl | __// \| |_) | (_| | |_ 7dnl \___/_/\_\ .__/ \__,_|\__| 8dnl |_| XML parser 9dnl 10dnl Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net> 11dnl Copyright (c) 2000-2005 Fred L. Drake, Jr. <fdrake@users.sourceforge.net> 12dnl Copyright (c) 2001-2003 Greg Stein <gstein@users.sourceforge.net> 13dnl Copyright (c) 2006-2012 Karl Waclawek <karl@waclawek.net> 14dnl Copyright (c) 2016-2022 Sebastian Pipping <sebastian@pipping.org> 15dnl Copyright (c) 2017 S. P. Zeidler <spz@netbsd.org> 16dnl Copyright (c) 2017 Stephen Groat <stephen@groat.us> 17dnl Copyright (c) 2017-2020 Joe Orton <jorton@redhat.com> 18dnl Copyright (c) 2018 Yury Gribov <tetra2005@gmail.com> 19dnl Copyright (c) 2018 Benjamin Peterson <benjamin@python.org> 20dnl Copyright (c) 2018 Marco Maggi <marco.maggi-ipsu@poste.it> 21dnl Copyright (c) 2018 KangLin <kl222@126.com> 22dnl Copyright (c) 2019 Mohammed Khajapasha <mohammed.khajapasha@intel.com> 23dnl Copyright (c) 2019 Kishore Kunche <kishore.kunche@intel.com> 24dnl Copyright (c) 2020 Jeffrey Walton <noloader@gmail.com> 25dnl Licensed under the MIT license: 26dnl 27dnl Permission is hereby granted, free of charge, to any person obtaining 28dnl a copy of this software and associated documentation files (the 29dnl "Software"), to deal in the Software without restriction, including 30dnl without limitation the rights to use, copy, modify, merge, publish, 31dnl distribute, sublicense, and/or sell copies of the Software, and to permit 32dnl persons to whom the Software is furnished to do so, subject to the 33dnl following conditions: 34dnl 35dnl The above copyright notice and this permission notice shall be included 36dnl in all copies or substantial portions of the Software. 37dnl 38dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 39dnl EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 40dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN 41dnl NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 42dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 43dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 44dnl USE OR OTHER DEALINGS IN THE SOFTWARE. 45 46dnl Ensure that Expat is configured with autoconf 2.69 or newer. 47AC_PREREQ([2.69]) 48 49dnl Get the version number of Expat, using m4's esyscmd() command to run 50dnl the command at m4-generation time. This allows us to create an m4 51dnl symbol holding the correct version number. AC_INIT requires the 52dnl version number at m4-time, rather than when ./configure is run, so 53dnl all this must happen as part of m4, not as part of the shell code 54dnl contained in ./configure. 55dnl 56dnl NOTE: esyscmd() is a GNU M4 extension. Thus, we wrap it in an appropriate 57dnl test. I believe this test will work, but I don't have a place with non- 58dnl GNU M4 to test it right now. 59m4_define([expat_version], 60 m4_ifdef([__gnu__], 61 [esyscmd(conftools/get-version.sh lib/expat.h)], 62 [2.2.x])) 63AC_INIT([expat], expat_version, [expat-bugs@libexpat.org]) 64m4_undefine([expat_version]) 65 66AC_CONFIG_SRCDIR([Makefile.in]) 67AC_CONFIG_AUX_DIR([conftools]) 68AC_CONFIG_MACRO_DIR([m4]) 69AC_CANONICAL_HOST 70AM_INIT_AUTOMAKE 71 72 73dnl 74dnl Increment LIBREVISION if source code has changed at all 75dnl 76dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0 77dnl 78dnl If the API changes compatibly (i.e. simply adding a new function 79dnl without changing or removing earlier interfaces), then increment LIBAGE. 80dnl 81dnl If the API changes incompatibly set LIBAGE back to 0 82dnl 83 84LIBCURRENT=9 # sync 85LIBREVISION=9 # with 86LIBAGE=8 # CMakeLists.txt! 87 88AC_CONFIG_HEADERS([expat_config.h]) 89 90AM_PROG_AR 91AC_PROG_INSTALL 92AC_PROG_LN_S 93AC_PROG_MAKE_SET 94 95LT_PREREQ([2.4]) 96LT_INIT([win32-dll]) 97 98AC_SUBST(LIBCURRENT) 99AC_SUBST(LIBREVISION) 100AC_SUBST(LIBAGE) 101 102AC_LANG([C]) 103AC_PROG_CC_C99 104 105AS_IF([test "$GCC" = yes], 106 [AX_APPEND_COMPILE_FLAGS([-Wall -Wextra], [AM_CFLAGS]) 107 dnl Be careful about adding the -fexceptions option; some versions of 108 dnl GCC don't support it and it causes extra warnings that are only 109 dnl distracting; avoid. 110 AX_APPEND_COMPILE_FLAGS([-fexceptions], [AM_CFLAGS]) 111 AX_APPEND_COMPILE_FLAGS([-fno-strict-aliasing -Wmissing-prototypes -Wstrict-prototypes], [AM_CFLAGS]) 112 AX_APPEND_COMPILE_FLAGS([-pedantic -Wduplicated-cond -Wduplicated-branches -Wlogical-op], [AM_CFLAGS]) 113 AX_APPEND_COMPILE_FLAGS([-Wrestrict -Wnull-dereference -Wjump-misses-init -Wdouble-promotion], [AM_CFLAGS]) 114 AX_APPEND_COMPILE_FLAGS([-Wshadow -Wformat=2 -Wno-pedantic-ms-format -Wmisleading-indentation], [AM_CFLAGS])]) 115 116AC_LANG_PUSH([C++]) 117AC_PROG_CXX 118 119AS_IF([test "$GCC" = yes], 120 [AX_APPEND_COMPILE_FLAGS([-Wall -Wextra], [AM_CXXFLAGS]) 121 dnl Be careful about adding the -fexceptions option; some versions of 122 dnl GCC don't support it and it causes extra warnings that are only 123 dnl distracting; avoid. 124 AX_APPEND_COMPILE_FLAGS([-fexceptions], [AM_CXXFLAGS]) 125 AX_APPEND_COMPILE_FLAGS([-fno-strict-aliasing], [AM_CXXFLAGS])]) 126AC_LANG_POP([C++]) 127 128AS_IF([test "$GCC" = yes], 129 [AX_APPEND_LINK_FLAGS([-fno-strict-aliasing],[AM_LDFLAGS])]) 130 131dnl patching ${archive_cmds} to affect generation of file "libtool" to fix linking with clang (issue #312) 132AS_CASE(["$LD"],[*clang*], 133 [AS_CASE(["${host_os}"], 134 [*linux*],[archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'])]) 135 136EXPATCFG_COMPILER_SUPPORTS_VISIBILITY([ 137 AX_APPEND_FLAG([-fvisibility=hidden], [AM_CFLAGS]) 138 AS_IF([test "${enable_shared}" = yes], 139 [AX_APPEND_FLAG([-DXML_ENABLE_VISIBILITY=1], [AM_CPPFLAGS])])]) 140 141dnl Checks for typedefs, structures, and compiler characteristics. 142 143dnl We define BYTEORDER to 1234 when the platform is little endian; it 144dnl defines it to 4321 when the platform is big endian. We also define 145dnl WORDS_BIGENDIAN to 1 when the platform is big endian. 146dnl 147dnl A long time ago (early 2000 years) AC_C_BIGENDIAN was considered 148dnl wrong when cross compiling, now (2018, GNU Autoconf 2.69) we assume 149dnl it is fine. 150AC_C_BIGENDIAN([AC_DEFINE([WORDS_BIGENDIAN], 1) 151 AS_VAR_SET([BYTEORDER], 4321)], 152 [AS_VAR_SET([BYTEORDER], 1234)]) 153AC_DEFINE_UNQUOTED([BYTEORDER], $BYTEORDER, [1234 = LILENDIAN, 4321 = BIGENDIAN]) 154 155AC_C_CONST 156AC_TYPE_SIZE_T 157 158AC_ARG_WITH([xmlwf], 159 [AS_HELP_STRING([--without-xmlwf], [do not build xmlwf])], 160 [], 161 [with_xmlwf=yes]) 162AM_CONDITIONAL([WITH_XMLWF], [test x${with_xmlwf} = xyes]) 163 164AC_ARG_WITH([examples], 165 [AS_HELP_STRING([--without-examples], [do not build examples @<:@default=included@:>@])], 166 [], 167 [with_examples=yes]) 168AM_CONDITIONAL([WITH_EXAMPLES], [test x${with_examples} = xyes]) 169 170AC_ARG_WITH([tests], 171 [AS_HELP_STRING([--without-tests], [do not build tests @<:@default=included@:>@])], 172 [], 173 [with_tests=yes]) 174AM_CONDITIONAL([WITH_TESTS], [test x${with_tests} = xyes]) 175 176 177AS_VAR_SET([EXPATCFG_ON_MINGW],[no]) 178AS_CASE("${host_os}", 179 [mingw*], 180 [AS_VAR_SET([EXPATCFG_ON_MINGW],[yes]) 181 AC_MSG_NOTICE([detected OS: MinGW])]) 182AM_CONDITIONAL([MINGW], [test x${EXPATCFG_ON_MINGW} = xyes]) 183 184dnl Note: Prefix "_INTERNAL_" here means exclusive use inside of file configure.ac 185AM_CONDITIONAL([UNICODE], [echo -- "${CPPFLAGS}${CFLAGS}" | ${FGREP} XML_UNICODE >/dev/null]) 186AM_CONDITIONAL([_INTERNAL_UNICODE_WCHAR_T], [echo -- "${CPPFLAGS}${CFLAGS}" | ${FGREP} XML_UNICODE_WCHAR_T >/dev/null]) 187AM_CONDITIONAL([_INTERNAL_MIN_SIZE], [echo -- "${CPPFLAGS}${CFLAGS}" | ${FGREP} XML_MIN_SIZE >/dev/null]) 188AM_CONDITIONAL([_INTERNAL_LARGE_SIZE], [echo -- "${CPPFLAGS}${CFLAGS}" | ${FGREP} XML_LARGE_SIZE >/dev/null]) 189 190LT_LIB_M 191 192AC_ARG_WITH([libbsd], 193 [AS_HELP_STRING([--with-libbsd], [utilize libbsd (for arc4random_buf)])], 194 [], 195 [with_libbsd=no]) 196AS_IF([test "x${with_libbsd}" != xno], 197 [AC_CHECK_LIB([bsd], 198 [arc4random_buf], 199 [], 200 [AS_IF([test "x${with_libbsd}" = xyes], 201 [AC_MSG_ERROR([Enforced use of libbsd cannot be satisfied.])])])]) 202AC_MSG_CHECKING([for arc4random_buf (BSD or libbsd)]) 203AC_LINK_IFELSE([AC_LANG_SOURCE([ 204 #include <stdlib.h> /* for arc4random_buf on BSD, for NULL */ 205 #if defined(HAVE_LIBBSD) 206 # include <bsd/stdlib.h> 207 #endif 208 int main() { 209 arc4random_buf(NULL, 0U); 210 return 0; 211 } 212 ])], 213 [AC_DEFINE([HAVE_ARC4RANDOM_BUF], [1], [Define to 1 if you have the `arc4random_buf' function.]) 214 AC_MSG_RESULT([yes])], 215 [AC_MSG_RESULT([no]) 216 217 AC_MSG_CHECKING([for arc4random (BSD, macOS or libbsd)]) 218 AC_LINK_IFELSE([AC_LANG_SOURCE([ 219 #if defined(HAVE_LIBBSD) 220 # include <bsd/stdlib.h> 221 #else 222 # include <stdlib.h> 223 #endif 224 int main() { 225 arc4random(); 226 return 0; 227 } 228 ])], 229 [AC_DEFINE([HAVE_ARC4RANDOM], [1], [Define to 1 if you have the `arc4random' function.]) 230 AC_MSG_RESULT([yes])], 231 [AC_MSG_RESULT([no])])]) 232 233AC_ARG_WITH([getrandom], 234 [AS_HELP_STRING([--with-getrandom], 235 [enforce the use of getrandom function in the system @<:@default=check@:>@]) 236AS_HELP_STRING([--without-getrandom], 237 [skip auto detect of getrandom @<:@default=check@:>@])], 238 [], 239 [with_getrandom=check]) 240 241AS_IF([test "x$with_getrandom" != xno], 242 [AC_MSG_CHECKING([for getrandom (Linux 3.17+, glibc 2.25+)]) 243 AC_LINK_IFELSE([AC_LANG_SOURCE([ 244 #include <stdlib.h> /* for NULL */ 245 #include <sys/random.h> 246 int main() { 247 return getrandom(NULL, 0U, 0U); 248 } 249 ])], 250 [AC_DEFINE([HAVE_GETRANDOM], [1], [Define to 1 if you have the `getrandom' function.]) 251 AC_MSG_RESULT([yes])], 252 [AC_MSG_RESULT([no]) 253 AS_IF([test "x$with_getrandom" = xyes], 254 [AC_MSG_ERROR([enforced the use of getrandom --with-getrandom, but not detected])])])]) 255 256AC_ARG_WITH([sys_getrandom], 257 [AS_HELP_STRING([--with-sys-getrandom], 258 [enforce the use of syscall SYS_getrandom function in the system @<:@default=check@:>@]) 259AS_HELP_STRING([--without-sys-getrandom], 260 [skip auto detect of syscall SYS_getrandom @<:@default=check@:>@])], 261 [], 262 [with_sys_getrandom=check]) 263 264AS_IF([test "x$with_sys_getrandom" != xno], 265 [AC_MSG_CHECKING([for syscall SYS_getrandom (Linux 3.17+)]) 266 AC_LINK_IFELSE([AC_LANG_SOURCE([ 267 #include <stdlib.h> /* for NULL */ 268 #include <unistd.h> /* for syscall */ 269 #include <sys/syscall.h> /* for SYS_getrandom */ 270 int main() { 271 syscall(SYS_getrandom, NULL, 0, 0); 272 return 0; 273 } 274 ])], 275 [AC_DEFINE([HAVE_SYSCALL_GETRANDOM], [1], [Define to 1 if you have `syscall' and `SYS_getrandom'.]) 276 AC_MSG_RESULT([yes])], 277 [AC_MSG_RESULT([no]) 278 AS_IF([test "x$with_sys_getrandom" = xyes], 279 [AC_MSG_ERROR([enforced the use of syscall SYS_getrandom --with-sys-getrandom, but not detected])])])]) 280 281dnl Only needed for xmlwf: 282AC_CHECK_HEADERS(fcntl.h unistd.h) 283AC_TYPE_OFF_T 284AC_FUNC_MMAP 285 286AS_IF([test "$ac_cv_func_mmap_fixed_mapped" = "yes"], 287 [AS_VAR_SET(FILEMAP,unixfilemap)], 288 [AS_VAR_SET(FILEMAP,readfilemap)]) 289AC_SUBST(FILEMAP) 290 291 292dnl Some basic configuration: 293AC_DEFINE([XML_NS], 1, 294 [Define to make XML Namespaces functionality available.]) 295AC_DEFINE([XML_DTD], 1, 296 [Define to make parameter entity parsing functionality available.]) 297AC_DEFINE([XML_DEV_URANDOM], 1, 298 [Define to include code reading entropy from `/dev/urandom'.]) 299 300AC_ARG_ENABLE([xml-attr-info], 301 [AS_HELP_STRING([--enable-xml-attr-info], 302 [Enable retrieving the byte offsets for attribute names and values @<:@default=no@:>@])], 303 [], 304 [enable_xml_attr_info=no]) 305AS_IF([test "x${enable_xml_attr_info}" = "xyes"], 306 [AC_DEFINE([XML_ATTR_INFO], 1, 307 [Define to allow retrieving the byte offsets for attribute names and values.])]) 308 309AC_ARG_ENABLE([xml-context], 310 AS_HELP_STRING([--enable-xml-context @<:@COUNT@:>@], 311 [Retain context around the current parse point; 312 default is enabled and a size of 1024 bytes]) 313AS_HELP_STRING([--disable-xml-context], 314 [Do not retain context around the current parse point]), 315 [enable_xml_context=${enableval}]) 316AS_IF([test "x${enable_xml_context}" != "xno"], 317 [AS_IF([test "x${enable_xml_context}" = "xyes" \ 318 -o "x${enable_xml_context}" = "x"], 319 [AS_VAR_SET(enable_xml_context,1024)]) 320 AC_DEFINE_UNQUOTED([XML_CONTEXT_BYTES], [${enable_xml_context}], 321 [Define to specify how much context to retain around the current parse point.])]) 322 323AC_ARG_WITH([docbook], 324 [AS_HELP_STRING([--with-docbook], 325 [enforce XML to man page compilation @<:@default=check@:>@]) 326AS_HELP_STRING([--without-docbook], 327 [skip XML to man page compilation @<:@default=check@:>@])], 328 [], 329 [with_docbook=check]) 330 331AC_ARG_VAR([DOCBOOK_TO_MAN], [docbook2x-man command]) 332AS_IF([test "x$with_docbook" != xno], 333 [AC_CHECK_PROGS([DOCBOOK_TO_MAN], [docbook2x-man db2x_docbook2man docbook2man docbook-to-man])]) 334AS_IF([test "x${DOCBOOK_TO_MAN}" = x -a "x$with_docbook" = xyes], 335 [AC_MSG_ERROR([Required program 'docbook2x-man' not found.])]) 336AS_IF([test "x${DOCBOOK_TO_MAN}" != x -a "x$with_docbook" != xno], 337 [AS_IF([${DOCBOOK_TO_MAN} --help | grep -i -q -F sgmlbase], 338 [AC_MSG_ERROR([Your local ${DOCBOOK_TO_MAN} was found to work with SGML rather 339 than XML. Please install docbook2X and use variable DOCBOOK_TO_MAN to point 340 configure to command docbook2x-man of docbook2X. 341 Or use DOCBOOK_TO_MAN="xmlto man --skip-validation" if you have xmlto around. 342 You can also configure using --without-docbook if you can do without a man 343 page for xmlwf.])])]) 344 345AM_CONDITIONAL(WITH_DOCBOOK, [test "x${DOCBOOK_TO_MAN}" != x]) 346 347 348dnl Configure CMake file templates 349dnl NOTE: The *_TRUE variables read here are Automake conditionals 350dnl that are either set to "" when enabled or to "#" when disabled 351dnl (because they are used to dynamically comment out certain things) 352AS_IF([test "x${enable_xml_attr_info}" = xyes], 353 [EXPAT_ATTR_INFO=ON], 354 [EXPAT_ATTR_INFO=OFF]) 355EXPAT_DTD=ON 356AS_IF([test "x${_INTERNAL_LARGE_SIZE_TRUE}" = x], 357 [EXPAT_LARGE_SIZE=ON], 358 [EXPAT_LARGE_SIZE=OFF]) 359AS_IF([test "x${_INTERNAL_MIN_SIZE_TRUE}" = x], 360 [EXPAT_MIN_SIZE=ON], 361 [EXPAT_MIN_SIZE=OFF]) 362EXPAT_NS=ON 363AS_IF([test "x${enable_xml_context}" != xno], 364 [EXPAT_CONTEXT_BYTES=${enable_xml_context}], 365 [EXPAT_CONTEXT_BYTES=OFF]) 366AS_IF([test "x${UNICODE_TRUE}" = x], 367 [AS_IF( 368 [test "x${_INTERNAL_UNICODE_WCHAR_T_TRUE}" = x], 369 [EXPAT_CHAR_TYPE=wchar_t], 370 [EXPAT_CHAR_TYPE=ushort])], 371 [EXPAT_CHAR_TYPE=char]) 372PACKAGE_INIT="${srcdir}"/cmake/autotools/expat-package-init.cmake 373LIBDIR_BASENAME="$(basename "${libdir}")" 374SO_MAJOR="$(expr "${LIBCURRENT}" - "${LIBAGE}")" 375SO_MINOR="${LIBAGE}" 376SO_PATCH="${LIBREVISION}" 377AC_CHECK_SIZEOF([void *]) # sets ac_cv_sizeof_void_p 378AC_SUBST([EXPAT_ATTR_INFO]) 379AC_SUBST([EXPAT_DTD]) 380AC_SUBST([EXPAT_LARGE_SIZE]) 381AC_SUBST([EXPAT_MIN_SIZE]) 382AC_SUBST([EXPAT_NS]) 383AC_SUBST([EXPAT_CONTEXT_BYTES]) 384AC_SUBST([EXPAT_CHAR_TYPE]) 385AC_SUBST_FILE([PACKAGE_INIT]) 386AC_SUBST([LIBDIR_BASENAME]) 387AC_SUBST([SO_MAJOR]) 388AC_SUBST([SO_MINOR]) 389AC_SUBST([SO_PATCH]) 390AC_SUBST([ac_cv_sizeof_void_p]) 391 392 393dnl write the Automake flags we set 394AC_SUBST([AM_CPPFLAGS]) 395AC_SUBST([AM_CFLAGS]) 396AC_SUBST([AM_CXXFLAGS]) 397AC_SUBST([AM_LDFLAGS]) 398 399dnl Emulate the use of CMAKE_SHARED_LIBRARY_PREFIX under CMake 400AC_MSG_CHECKING([for shared library name prefix]) 401AS_CASE("${host_os}", 402 [cygwin*], [CMAKE_SHARED_LIBRARY_PREFIX=cyg], 403 [CMAKE_SHARED_LIBRARY_PREFIX=lib]) 404AC_MSG_RESULT([${CMAKE_SHARED_LIBRARY_PREFIX}]) 405AC_SUBST([CMAKE_SHARED_LIBRARY_PREFIX]) 406 407AS_CASE("${host_os}", 408 [darwin*], [CMAKE_NOCONFIG_SOURCE=cmake/autotools/expat-noconfig__macos.cmake.in], 409 [mingw*|cygwin*], [CMAKE_NOCONFIG_SOURCE=cmake/autotools/expat-noconfig__windows.cmake.in], 410 [CMAKE_NOCONFIG_SOURCE=cmake/autotools/expat-noconfig__linux.cmake.in]) 411AC_CONFIG_FILES([Makefile] 412 [expat.pc] 413 [cmake/expat-config.cmake] 414 [cmake/autotools/expat-config-version.cmake] 415 [cmake/autotools/expat-noconfig.cmake:${CMAKE_NOCONFIG_SOURCE}] 416 [doc/Makefile] 417 [examples/Makefile] 418 [lib/Makefile] 419 [tests/Makefile] 420 [tests/benchmark/Makefile] 421 [xmlwf/Makefile]) 422AC_CONFIG_FILES([run.sh], [chmod +x run.sh]) 423AC_OUTPUT 424 425 426AC_MSG_NOTICE([ 427 428Automake flags (can be overridden by user flags): 429 [AM_CPPFLAGS]: ${AM_CPPFLAGS} 430 [AM_CFLAGS]: ${AM_CFLAGS} 431 [AM_CXXFLAGS]: ${AM_CXXFLAGS} 432 [AM_LDFLAGS]: ${AM_LDFLAGS} 433 434User flags (override Automake flags on conflict): 435 CPPFLAGS: ${CPPFLAGS} 436 CFLAGS: ${CFLAGS} 437 CXXFLAGS: ${CXXFLAGS} 438 LDFLAGS: ${LDFLAGS}]) 439