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=7 # 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 AX_APPEND_FLAG([-DXML_ENABLE_VISIBILITY=1], [AM_CPPFLAGS])]) 139 140dnl Checks for typedefs, structures, and compiler characteristics. 141 142dnl We define BYTEORDER to 1234 when the platform is little endian; it 143dnl defines it to 4321 when the platform is big endian. We also define 144dnl WORDS_BIGENDIAN to 1 when the platform is big endian. 145dnl 146dnl A long time ago (early 2000 years) AC_C_BIGENDIAN was considered 147dnl wrong when cross compiling, now (2018, GNU Autoconf 2.69) we assume 148dnl it is fine. 149AC_C_BIGENDIAN([AC_DEFINE([WORDS_BIGENDIAN], 1) 150 AS_VAR_SET([BYTEORDER], 4321)], 151 [AS_VAR_SET([BYTEORDER], 1234)]) 152AC_DEFINE_UNQUOTED([BYTEORDER], $BYTEORDER, [1234 = LILENDIAN, 4321 = BIGENDIAN]) 153 154AC_C_CONST 155AC_TYPE_SIZE_T 156 157AC_ARG_WITH([xmlwf], 158 [AS_HELP_STRING([--without-xmlwf], [do not build xmlwf])], 159 [], 160 [with_xmlwf=yes]) 161AM_CONDITIONAL([WITH_XMLWF], [test x${with_xmlwf} = xyes]) 162 163AC_ARG_WITH([examples], 164 [AS_HELP_STRING([--without-examples], [do not build examples @<:@default=included@:>@])], 165 [], 166 [with_examples=yes]) 167AM_CONDITIONAL([WITH_EXAMPLES], [test x${with_examples} = xyes]) 168 169AC_ARG_WITH([tests], 170 [AS_HELP_STRING([--without-tests], [do not build tests @<:@default=included@:>@])], 171 [], 172 [with_tests=yes]) 173AM_CONDITIONAL([WITH_TESTS], [test x${with_tests} = xyes]) 174 175 176AS_VAR_SET([EXPATCFG_ON_MINGW],[no]) 177AS_CASE("${host_os}", 178 [mingw*], 179 [AS_VAR_SET([EXPATCFG_ON_MINGW],[yes]) 180 AC_MSG_NOTICE([detected OS: MinGW])]) 181AM_CONDITIONAL([MINGW], [test x${EXPATCFG_ON_MINGW} = xyes]) 182 183dnl Note: Prefix "_INTERNAL_" here means exclusive use inside of file configure.ac 184AM_CONDITIONAL([UNICODE], [echo -- "${CPPFLAGS}${CFLAGS}" | ${FGREP} XML_UNICODE >/dev/null]) 185AM_CONDITIONAL([_INTERNAL_UNICODE_WCHAR_T], [echo -- "${CPPFLAGS}${CFLAGS}" | ${FGREP} XML_UNICODE_WCHAR_T >/dev/null]) 186AM_CONDITIONAL([_INTERNAL_MIN_SIZE], [echo -- "${CPPFLAGS}${CFLAGS}" | ${FGREP} XML_MIN_SIZE >/dev/null]) 187AM_CONDITIONAL([_INTERNAL_LARGE_SIZE], [echo -- "${CPPFLAGS}${CFLAGS}" | ${FGREP} XML_LARGE_SIZE >/dev/null]) 188 189LT_LIB_M 190 191AC_ARG_WITH([libbsd], 192 [AS_HELP_STRING([--with-libbsd], [utilize libbsd (for arc4random_buf)])], 193 [], 194 [with_libbsd=no]) 195AS_IF([test "x${with_libbsd}" != xno], 196 [AC_CHECK_LIB([bsd], 197 [arc4random_buf], 198 [], 199 [AS_IF([test "x${with_libbsd}" = xyes], 200 [AC_MSG_ERROR([Enforced use of libbsd cannot be satisfied.])])])]) 201AC_MSG_CHECKING([for arc4random_buf (BSD or libbsd)]) 202AC_LINK_IFELSE([AC_LANG_SOURCE([ 203 #include <stdlib.h> /* for arc4random_buf on BSD, for NULL */ 204 #if defined(HAVE_LIBBSD) 205 # include <bsd/stdlib.h> 206 #endif 207 int main() { 208 arc4random_buf(NULL, 0U); 209 return 0; 210 } 211 ])], 212 [AC_DEFINE([HAVE_ARC4RANDOM_BUF], [1], [Define to 1 if you have the `arc4random_buf' function.]) 213 AC_MSG_RESULT([yes])], 214 [AC_MSG_RESULT([no]) 215 216 AC_MSG_CHECKING([for arc4random (BSD, macOS or libbsd)]) 217 AC_LINK_IFELSE([AC_LANG_SOURCE([ 218 #if defined(HAVE_LIBBSD) 219 # include <bsd/stdlib.h> 220 #else 221 # include <stdlib.h> 222 #endif 223 int main() { 224 arc4random(); 225 return 0; 226 } 227 ])], 228 [AC_DEFINE([HAVE_ARC4RANDOM], [1], [Define to 1 if you have the `arc4random' function.]) 229 AC_MSG_RESULT([yes])], 230 [AC_MSG_RESULT([no])])]) 231 232AC_ARG_WITH([getrandom], 233 [AS_HELP_STRING([--with-getrandom], 234 [enforce the use of getrandom function in the system @<:@default=check@:>@]) 235AS_HELP_STRING([--without-getrandom], 236 [skip auto detect of getrandom @<:@default=check@:>@])], 237 [], 238 [with_getrandom=check]) 239 240AS_IF([test "x$with_getrandom" != xno], 241 [AC_MSG_CHECKING([for getrandom (Linux 3.17+, glibc 2.25+)]) 242 AC_LINK_IFELSE([AC_LANG_SOURCE([ 243 #include <stdlib.h> /* for NULL */ 244 #include <sys/random.h> 245 int main() { 246 return getrandom(NULL, 0U, 0U); 247 } 248 ])], 249 [AC_DEFINE([HAVE_GETRANDOM], [1], [Define to 1 if you have the `getrandom' function.]) 250 AC_MSG_RESULT([yes])], 251 [AC_MSG_RESULT([no]) 252 AS_IF([test "x$with_getrandom" = xyes], 253 [AC_MSG_ERROR([enforced the use of getrandom --with-getrandom, but not detected])])])]) 254 255AC_ARG_WITH([sys_getrandom], 256 [AS_HELP_STRING([--with-sys-getrandom], 257 [enforce the use of syscall SYS_getrandom function in the system @<:@default=check@:>@]) 258AS_HELP_STRING([--without-sys-getrandom], 259 [skip auto detect of syscall SYS_getrandom @<:@default=check@:>@])], 260 [], 261 [with_sys_getrandom=check]) 262 263AS_IF([test "x$with_sys_getrandom" != xno], 264 [AC_MSG_CHECKING([for syscall SYS_getrandom (Linux 3.17+)]) 265 AC_LINK_IFELSE([AC_LANG_SOURCE([ 266 #include <stdlib.h> /* for NULL */ 267 #include <unistd.h> /* for syscall */ 268 #include <sys/syscall.h> /* for SYS_getrandom */ 269 int main() { 270 syscall(SYS_getrandom, NULL, 0, 0); 271 return 0; 272 } 273 ])], 274 [AC_DEFINE([HAVE_SYSCALL_GETRANDOM], [1], [Define to 1 if you have `syscall' and `SYS_getrandom'.]) 275 AC_MSG_RESULT([yes])], 276 [AC_MSG_RESULT([no]) 277 AS_IF([test "x$with_sys_getrandom" = xyes], 278 [AC_MSG_ERROR([enforced the use of syscall SYS_getrandom --with-sys-getrandom, but not detected])])])]) 279 280dnl Only needed for xmlwf: 281AC_CHECK_HEADERS(fcntl.h unistd.h) 282AC_TYPE_OFF_T 283AC_FUNC_MMAP 284 285AS_IF([test "$ac_cv_func_mmap_fixed_mapped" = "yes"], 286 [AS_VAR_SET(FILEMAP,unixfilemap)], 287 [AS_VAR_SET(FILEMAP,readfilemap)]) 288AC_SUBST(FILEMAP) 289 290 291dnl Some basic configuration: 292AC_DEFINE([XML_NS], 1, 293 [Define to make XML Namespaces functionality available.]) 294AC_DEFINE([XML_DTD], 1, 295 [Define to make parameter entity parsing functionality available.]) 296AC_DEFINE([XML_DEV_URANDOM], 1, 297 [Define to include code reading entropy from `/dev/urandom'.]) 298 299AC_ARG_ENABLE([xml-attr-info], 300 [AS_HELP_STRING([--enable-xml-attr-info], 301 [Enable retrieving the byte offsets for attribute names and values @<:@default=no@:>@])], 302 [], 303 [enable_xml_attr_info=no]) 304AS_IF([test "x${enable_xml_attr_info}" = "xyes"], 305 [AC_DEFINE([XML_ATTR_INFO], 1, 306 [Define to allow retrieving the byte offsets for attribute names and values.])]) 307 308AC_ARG_ENABLE([xml-context], 309 AS_HELP_STRING([--enable-xml-context @<:@COUNT@:>@], 310 [Retain context around the current parse point; 311 default is enabled and a size of 1024 bytes]) 312AS_HELP_STRING([--disable-xml-context], 313 [Do not retain context around the current parse point]), 314 [enable_xml_context=${enableval}]) 315AS_IF([test "x${enable_xml_context}" != "xno"], 316 [AS_IF([test "x${enable_xml_context}" = "xyes" \ 317 -o "x${enable_xml_context}" = "x"], 318 [AS_VAR_SET(enable_xml_context,1024)]) 319 AC_DEFINE_UNQUOTED([XML_CONTEXT_BYTES], [${enable_xml_context}], 320 [Define to specify how much context to retain around the current parse point.])]) 321 322AC_ARG_WITH([docbook], 323 [AS_HELP_STRING([--with-docbook], 324 [enforce XML to man page compilation @<:@default=check@:>@]) 325AS_HELP_STRING([--without-docbook], 326 [skip XML to man page compilation @<:@default=check@:>@])], 327 [], 328 [with_docbook=check]) 329 330AC_ARG_VAR([DOCBOOK_TO_MAN], [docbook2x-man command]) 331AS_IF([test "x$with_docbook" != xno], 332 [AC_CHECK_PROGS([DOCBOOK_TO_MAN], [docbook2x-man db2x_docbook2man docbook2man docbook-to-man])]) 333AS_IF([test "x${DOCBOOK_TO_MAN}" = x -a "x$with_docbook" = xyes], 334 [AC_MSG_ERROR([Required program 'docbook2x-man' not found.])]) 335AS_IF([test "x${DOCBOOK_TO_MAN}" != x -a "x$with_docbook" != xno], 336 [AS_IF([${DOCBOOK_TO_MAN} --help | grep -i -q -F sgmlbase], 337 [AC_MSG_ERROR([Your local ${DOCBOOK_TO_MAN} was found to work with SGML rather 338 than XML. Please install docbook2X and use variable DOCBOOK_TO_MAN to point 339 configure to command docbook2x-man of docbook2X. 340 Or use DOCBOOK_TO_MAN="xmlto man --skip-validation" if you have xmlto around. 341 You can also configure using --without-docbook if you can do without a man 342 page for xmlwf.])])]) 343 344AM_CONDITIONAL(WITH_DOCBOOK, [test "x${DOCBOOK_TO_MAN}" != x]) 345 346 347dnl Configure CMake file templates 348dnl NOTE: The *_TRUE variables read here are Automake conditionals 349dnl that are either set to "" when enabled or to "#" when disabled 350dnl (because they are used to dynamically comment out certain things) 351AS_IF([test "x${enable_xml_attr_info}" = xyes], 352 [EXPAT_ATTR_INFO=ON], 353 [EXPAT_ATTR_INFO=OFF]) 354EXPAT_DTD=ON 355AS_IF([test "x${_INTERNAL_LARGE_SIZE_TRUE}" = x], 356 [EXPAT_LARGE_SIZE=ON], 357 [EXPAT_LARGE_SIZE=OFF]) 358AS_IF([test "x${_INTERNAL_MIN_SIZE_TRUE}" = x], 359 [EXPAT_MIN_SIZE=ON], 360 [EXPAT_MIN_SIZE=OFF]) 361EXPAT_NS=ON 362AS_IF([test "x${enable_xml_context}" != xno], 363 [EXPAT_CONTEXT_BYTES=${enable_xml_context}], 364 [EXPAT_CONTEXT_BYTES=OFF]) 365AS_IF([test "x${UNICODE_TRUE}" = x], 366 [AS_IF( 367 [test "x${_INTERNAL_UNICODE_WCHAR_T_TRUE}" = x], 368 [EXPAT_CHAR_TYPE=wchar_t], 369 [EXPAT_CHAR_TYPE=ushort])], 370 [EXPAT_CHAR_TYPE=char]) 371PACKAGE_INIT="${srcdir}"/cmake/autotools/expat-package-init.cmake 372LIBDIR_BASENAME="$(basename "${libdir}")" 373SO_MAJOR="$(expr "${LIBCURRENT}" - "${LIBAGE}")" 374SO_MINOR="${LIBAGE}" 375SO_PATCH="${LIBREVISION}" 376AC_CHECK_SIZEOF([void *]) # sets ac_cv_sizeof_void_p 377AC_SUBST([EXPAT_ATTR_INFO]) 378AC_SUBST([EXPAT_DTD]) 379AC_SUBST([EXPAT_LARGE_SIZE]) 380AC_SUBST([EXPAT_MIN_SIZE]) 381AC_SUBST([EXPAT_NS]) 382AC_SUBST([EXPAT_CONTEXT_BYTES]) 383AC_SUBST([EXPAT_CHAR_TYPE]) 384AC_SUBST_FILE([PACKAGE_INIT]) 385AC_SUBST([LIBDIR_BASENAME]) 386AC_SUBST([SO_MAJOR]) 387AC_SUBST([SO_MINOR]) 388AC_SUBST([SO_PATCH]) 389AC_SUBST([ac_cv_sizeof_void_p]) 390 391 392dnl write the Automake flags we set 393AC_SUBST([AM_CPPFLAGS]) 394AC_SUBST([AM_CFLAGS]) 395AC_SUBST([AM_CXXFLAGS]) 396AC_SUBST([AM_LDFLAGS]) 397 398dnl Emulate the use of CMAKE_SHARED_LIBRARY_PREFIX under CMake 399AC_MSG_CHECKING([for shared library name prefix]) 400AS_CASE("${host_os}", 401 [cygwin*], [CMAKE_SHARED_LIBRARY_PREFIX=cyg], 402 [CMAKE_SHARED_LIBRARY_PREFIX=lib]) 403AC_MSG_RESULT([${CMAKE_SHARED_LIBRARY_PREFIX}]) 404AC_SUBST([CMAKE_SHARED_LIBRARY_PREFIX]) 405 406AS_CASE("${host_os}", 407 [darwin*], [CMAKE_NOCONFIG_SOURCE=cmake/autotools/expat-noconfig__macos.cmake.in], 408 [mingw*|cygwin*], [CMAKE_NOCONFIG_SOURCE=cmake/autotools/expat-noconfig__windows.cmake.in], 409 [CMAKE_NOCONFIG_SOURCE=cmake/autotools/expat-noconfig__linux.cmake.in]) 410AC_CONFIG_FILES([Makefile] 411 [expat.pc] 412 [cmake/expat-config.cmake] 413 [cmake/autotools/expat-config-version.cmake] 414 [cmake/autotools/expat-noconfig.cmake:${CMAKE_NOCONFIG_SOURCE}] 415 [doc/Makefile] 416 [examples/Makefile] 417 [lib/Makefile] 418 [tests/Makefile] 419 [tests/benchmark/Makefile] 420 [xmlwf/Makefile]) 421AC_CONFIG_FILES([run.sh], [chmod +x run.sh]) 422AC_OUTPUT 423 424 425AC_MSG_NOTICE([ 426 427Automake flags (can be overridden by user flags): 428 [AM_CPPFLAGS]: ${AM_CPPFLAGS} 429 [AM_CFLAGS]: ${AM_CFLAGS} 430 [AM_CXXFLAGS]: ${AM_CXXFLAGS} 431 [AM_LDFLAGS]: ${AM_LDFLAGS} 432 433User flags (override Automake flags on conflict): 434 CPPFLAGS: ${CPPFLAGS} 435 CFLAGS: ${CFLAGS} 436 CXXFLAGS: ${CXXFLAGS} 437 LDFLAGS: ${LDFLAGS}]) 438