config/lyxinclude.m4

   1 dnl Some useful functions for LyXs configure.in                 -*- sh -*-
   2 dnl Author: Jean-Marc Lasgouttes (Jean-Marc.Lasgouttes@inria.fr)
   3 dnl         Lars Gullik Bjønnes (larsbj@lyx.org)
   4 dnl         Allan Rae (rae@lyx.org)
   5
   6 dnl Compute the default build type from AC_PACKAGE_VERSION at autoconf time.
   7 m4_define([LYX_BUILD_TYPE], [m4_bmatch(AC_PACKAGE_VERSION,
   8     [dev], [development],
   9     [pre\|alpha\|beta\|rc], [prerelease],
  10     [release])])
  11
  12
  13 dnl Usage LYX_CHECK_VERSION   Displays version of LyX being built and
  14 dnl sets variable "build_type"
  15 AC_DEFUN([LYX_CHECK_VERSION],[
  16 echo "configuring LyX version" AC_PACKAGE_VERSION
  17
  18 AC_MSG_CHECKING([for build type])
  19 lyx_devel_version=no
  20 lyx_prerelease=no
  21 AC_ARG_ENABLE(build-type,
  22   AC_HELP_STRING([--enable-build-type=STR],[set build type to rel(ease), pre(release), dev(elopment), prof(iling), or gprof (default: LYX_BUILD_TYPE)]),
  23   [case $enableval in
  24     dev*) build_type=development;;
  25     pre*) build_type=prerelease;;
  26     prof*)  build_type=profiling;;
  27     gprof*) build_type=gprof;;
  28     rel*) build_type=release;;
  29     *) AC_MSG_ERROR([bad build type specification \"$enableval\". Please use one of rel(ease), pre(release), dev(elopment), prof(iling), or gprof]);;
  30    esac],
  31   [build_type=LYX_BUILD_TYPE])
  32 AC_MSG_RESULT([$build_type])
  33 lyx_flags="$lyx_flags build=$build_type"
  34 case $build_type in
  35     development) lyx_devel_version=yes
  36                  LYX_DATE="not released yet" ;;
  37     prerelease) lyx_prerelease=yes ;;
  38 esac
  39
  40 AC_SUBST(lyx_devel_version)
  41 ])
  42
  43
  44 dnl Define the option to set a LyX version on installed executables and directories
  45 dnl
  46 dnl
  47 AC_DEFUN([LYX_VERSION_SUFFIX],[
  48 AC_MSG_CHECKING([for version suffix])
  49 dnl We need the literal double quotes in the rpm spec file
  50 RPM_VERSION_SUFFIX='""'
  51 AC_ARG_WITH(version-suffix,
  52   [AC_HELP_STRING([--with-version-suffix@<:@=STR@:>@], install lyx files as lyxSTR (default STR: -AC_PACKAGE_VERSION))],
  53   [if test "x$withval" = "xyes";
  54    then
  55      withval="-"AC_PACKAGE_VERSION
  56      ac_configure_args=`echo "$ac_configure_args" | sed "s,--with-version-suffix,--with-version-suffix=$withval,"`
  57    fi
  58    AC_SUBST(version_suffix,$withval)
  59    RPM_VERSION_SUFFIX="--with-version-suffix=$withval"])
  60 AC_SUBST(RPM_VERSION_SUFFIX)
  61 AC_SUBST(program_base_name,"lyx")
  62 AC_MSG_RESULT([$withval])
  63 ])
  64
  65
  66 dnl Check whether to configure for Qt4 or Qt5. Default is Qt5.
  67 dnl
  68 AC_DEFUN([LYX_CHECK_QT5],[
  69 AC_MSG_CHECKING([whether Qt5 is disabled])
  70 AC_ARG_ENABLE([qt5],
  71   [  --disable-qt5           don't use Qt5 for building],
  72   USE_QT5=$enableval, USE_QT5=yes)
  73 if test x$USE_QT5 != xno ; then
  74   AC_MSG_RESULT([no])
  75 else
  76   AC_MSG_RESULT([yes])
  77 fi
  78 AC_SUBST([USE_QT5])
  79 ])
  80
  81
  82 dnl Usage: LYX_WARNING(message)  Displays the warning "message" and sets the
  83 dnl flag lyx_warning to yes.
  84 AC_DEFUN([LYX_WARNING],[
  85 lyx_warning_txt="$lyx_warning_txt
  86 == $1
  87 "
  88 lyx_warning=yes])
  89
  90
  91 dnl Usage: LYX_LIB_ERROR(file,library)  Displays an error message indication
  92 dnl  that 'file' cannot be found because 'lib' may be uncorrectly installed.
  93 AC_DEFUN([LYX_LIB_ERROR],[
  94 AC_MSG_ERROR([cannot find $1. Please check that the $2 library
  95    is correctly installed on your system.])])
  96
  97
  98 dnl Usage: LYX_CHECK_WARNINGS  Displays a warning message if a LYX_WARNING
  99 dnl   has occurred previously.
 100 AC_DEFUN([LYX_CHECK_WARNINGS],[
 101 if test x$lyx_warning = xyes; then
 102 cat <<EOF
 103 === The following minor problems have been detected by configure.
 104 === Please check the messages below before running 'make'.
 105 === (see the section 'Problems' in the INSTALL file)
 106 $lyx_warning_txt
 107
 108 EOF
 109 fi])
 110
 111
 112 dnl LYX_SEARCH_PROG(VARIABLE-NAME,PROGRAMS-LIST,ACTION-IF-FOUND)
 113 dnl
 114 define(LYX_SEARCH_PROG,[dnl
 115 for ac_prog in $2 ; do
 116 # Extract the first word of "$ac_prog", so it can be a program name with args.
 117   set dummy $ac_prog ; ac_word=$[2]
 118   if test -z "[$]$1"; then
 119     IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
 120     for ac_dir in $PATH; do
 121       test -z "$ac_dir" && ac_dir=.
 122       if test -f [$ac_dir/$ac_word]; then
 123         $1="$ac_prog"
 124         break
 125       fi
 126     done
 127     IFS="$ac_save_ifs"
 128   fi
 129
 130   if test -n "[$]$1"; then
 131     ac_result=yes
 132   else
 133     ac_result=no
 134   fi
 135   ifelse($3,,,[$3])
 136   test -n "[$]$1" && break
 137 done
 138 ])dnl
 139
 140
 141 dnl Usage: LYX_PROG_CLANG: set CLANG to yes if the compiler is clang.
 142 AC_DEFUN([LYX_PROG_CLANG],
 143 [AC_CACHE_CHECK([whether the compiler is clang],
 144                [lyx_cv_prog_clang],
 145 [AC_TRY_COMPILE([], [
 146 #ifndef __clang__
 147             this is not clang
 148 #endif
 149 ],
 150 [lyx_cv_prog_clang=yes ; CLANG=yes], [lyx_cv_prog_clang=no ; CLANG=no])])
 151 if test $CLANG = yes ; then
 152   AC_CACHE_CHECK([for clang version],
 153     [lyx_cv_clang_version],
 154     [clang_noversion=no
 155      AC_COMPUTE_INT(clang_major,__clang_major__,,[clang_noversion_=yes])
 156      AC_COMPUTE_INT(clang_minor,__clang_minor__,,[clang_noversion_=yes])
 157      AC_COMPUTE_INT(clang_patchlevel,__clang_patchlevel__,,[clang_noversion_=yes])
 158      if test $clang_noversion = yes ; then
 159        clang_version=unknown
 160      else
 161        clang_version=$clang_major.$clang_minor.$clang_patchlevel
 162      fi
 163      lyx_cv_clang_version=$clang_version])
 164 fi
 165 ])
 166
 167
 168 dnl Usage: LYX_CXX_CXX11_FLAGS: add to AM_CXXFLAGS the best flag that
 169 selects C++11 mode; gives an error when C++11 mode is not found.
 170 AC_DEFUN([LYX_CXX_CXX11_FLAGS],
 171 [AC_CACHE_CHECK([for at least C++11 mode], [lyx_cv_cxx11_flags],
 172  [lyx_cv_cxx11_flags=none
 173   for flag in -std=c++14 -std=c++11 "" -std=c++0x -std=gnu++14 -std=gnu++11 -std=gnu++0x ; do
 174     save_CPPFLAGS=$CPPFLAGS
 175     CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
 176     save_CXXFLAGS=$CXXFLAGS
 177     CXXFLAGS="$flag $AM_CXXFLAGS $CXXFLAGS"
 178     dnl sample openmp source code to test
 179     AC_TRY_COMPILE([
 180        template <typename T>
 181        struct check
 182        {
 183            static_assert(sizeof(int) <= sizeof(T), "not big enough");
 184        };
 185
 186        typedef check<check<bool>> right_angle_brackets;
 187
 188        class TestDeleted
 189        {
 190        public:
 191            TestDeleted() = delete;
 192        };
 193
 194
 195        int a;
 196        decltype(a) b;
 197
 198        typedef check<int> check_type;
 199        check_type c;
 200        check_type&& cr = static_cast<check_type&&>(c);
 201
 202        auto d = a;], [],
 203     [lyx_cv_cxx11_flags=$flag; break])
 204    CXXFLAGS=$save_CXXFLAGS
 205    CPPFLAGS=$save_CPPFLAGS
 206   done])
 207   if test $lyx_cv_cxx11_flags = none ; then
 208     AC_ERROR([Cannot find suitable C++11 mode for compiler $CXX])
 209   fi
 210   AM_CXXFLAGS="$lyx_cv_cxx11_flags $AM_CXXFLAGS"
 211 ])
 212
 213
 214 dnl Usage: LYX_CXX_USE_REGEX
 215 dnl decide whether we want to use std::regex and set the
 216 dnl LYX_USE_STD_REGEX macro and conditional accordingly.
 217 AC_DEFUN([LYX_CXX_USE_REGEX],
 218 [AC_ARG_ENABLE(std-regex,
 219   AC_HELP_STRING([--enable-std-regex],[use std::regex instead of boost::regex (default is autodetected)]),
 220   [lyx_std_regex=$enableval],
 221   [AC_MSG_CHECKING([for correct regex implementation])
 222    save_CPPFLAGS=$CPPFLAGS
 223    CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
 224    save_CXXFLAGS=$CXXFLAGS
 225    CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
 226    # The following code snippet has been taken taken from example in
 227    #   http://stackoverflow.com/questions/8561850/compile-stdregex-iterator-with-gcc
 228    AC_TRY_LINK(
 229      [
 230         #include <regex>
 231         #include <iostream>
 232
 233         #include <string.h>
 234
 235         typedef std::regex_iterator<const char *> Myiter;
 236      ], [
 237         const char *pat = "axayaz";
 238         Myiter::regex_type rx("a");
 239         Myiter next(pat, pat + strlen(pat), rx);
 240         Myiter end;
 241    ], [lyx_std_regex=yes], [lyx_std_regex=no])
 242    CXXFLAGS=$save_CXXFLAGS
 243    CPPFLAGS=$save_CPPFLAGS
 244    AC_MSG_RESULT([$lyx_std_regex])
 245  ])
 246
 247  if test $lyx_std_regex = yes ; then
 248   lyx_flags="$lyx_flags std-regex"
 249   AC_DEFINE([LYX_USE_STD_REGEX], 1, [define to 1 if std::regex should be preferred to boost::regex])
 250  fi
 251  AM_CONDITIONAL([LYX_USE_STD_REGEX], test $lyx_std_regex = yes)
 252 ])
 253
 254
 255 dnl Usage: LYX_CXX_USE_CALL_ONCE
 256 dnl check whether we can use std::call_once and set the
 257 dnl LYX_USE_STD_CALL_ONCE macro and conditional accordingly.
 258 AC_DEFUN([LYX_CXX_USE_CALL_ONCE],
 259 [AC_MSG_CHECKING([for std::call_once availability])
 260    save_CPPFLAGS=$CPPFLAGS
 261    CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
 262    save_CXXFLAGS=$CXXFLAGS
 263    CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
 264    AC_TRY_LINK(
 265      [
 266         #include <mutex>
 267         static std::once_flag flag;
 268      ], [
 269         std::call_once(flag, [](){ return; });
 270    ], [lyx_std_call_once=yes], [lyx_std_call_once=no])
 271    CXXFLAGS=$save_CXXFLAGS
 272    CPPFLAGS=$save_CPPFLAGS
 273    AC_MSG_RESULT([$lyx_std_call_once])
 274
 275  if test $lyx_std_call_once = yes ; then
 276   AC_DEFINE([LYX_USE_STD_CALL_ONCE], 1, [define to 1 if std::call_once is supported by the compiler])
 277  fi
 278  AM_CONDITIONAL([LYX_USE_STD_CALL_ONCE], test $lyx_std_call_once = yes)
 279 ])
 280
 281
 282 dnl Usage: LYX_LIB_STDCXX: set lyx_cv_lib_stdcxx to yes if the STL library is libstdc++.
 283 AC_DEFUN([LYX_LIB_STDCXX],
 284 [AC_CACHE_CHECK([whether STL is libstdc++],
 285                [lyx_cv_lib_stdcxx],
 286 [AC_TRY_COMPILE([#include<vector>], [
 287 #if ! defined(__GLIBCXX__) && ! defined(__GLIBCPP__)
 288             this is not libstdc++
 289 #endif
 290 ],
 291 [lyx_cv_lib_stdcxx=yes], [lyx_cv_lib_stdcxx=no])])
 292 ])
 293
 294
 295 dnl Usage: LYX_LIB_STDCXX_CXX11_ABI: set lyx_cv_lib_stdcxx_cxx11_abi to yes
 296 dnl        if the STL library is GNU libstdc++ and the C++11 ABI is used.
 297 AC_DEFUN([LYX_LIB_STDCXX_CXX11_ABI],
 298 [AC_CACHE_CHECK([whether STL is libstdc++ using the C++11 ABI],
 299                [lyx_cv_lib_stdcxx_cxx11_abi],
 300 [AC_TRY_COMPILE([#include<vector>], [
 301 #if ! defined(_GLIBCXX_USE_CXX11_ABI) || ! _GLIBCXX_USE_CXX11_ABI
 302             this is not libstdc++ using the C++11 ABI
 303 #endif
 304 ],
 305 [lyx_cv_lib_stdcxx_cxx11_abi=yes], [lyx_cv_lib_stdcxx_cxx11_abi=no])])
 306 ])
 307
 308
 309 AC_DEFUN([LYX_PROG_CXX],
 310 [AC_REQUIRE([AC_PROG_CXX])
 311 AC_REQUIRE([AC_PROG_CXXCPP])
 312
 313 AC_LANG_PUSH(C++)
 314 LYX_PROG_CLANG
 315 LYX_CXX_CXX11_FLAGS
 316 LYX_LIB_STDCXX
 317 LYX_LIB_STDCXX_CXX11_ABI
 318 LYX_CXX_USE_REGEX
 319 LYX_CXX_USE_CALL_ONCE
 320 AC_LANG_POP(C++)
 321
 322 if test $lyx_cv_lib_stdcxx = "yes" ; then
 323   if test $lyx_cv_lib_stdcxx_cxx11_abi = "yes" ; then
 324     AC_DEFINE(USE_GLIBCXX_CXX11_ABI, 1, [use GNU libstdc++ with C++11 ABI])
 325   else
 326     AC_DEFINE(STD_STRING_USES_COW, 1, [std::string uses copy-on-write])
 327   fi
 328 else
 329   if test $lyx_cv_prog_clang = "yes" ; then
 330     AC_DEFINE(USE_LLVM_LIBCPP, 1, [use libc++ provided by llvm instead of GNU libstdc++])
 331   fi
 332 fi
 333
 334 ### We might want to get or shut warnings.
 335 AC_ARG_ENABLE(warnings,
 336   AC_HELP_STRING([--enable-warnings],[tell the compiler to display more warnings]),,
 337   [ if test $lyx_devel_version = yes -o $lyx_prerelease = yes && test $ac_cv_prog_gxx = yes ; then
 338         enable_warnings=yes;
 339     else
 340         enable_warnings=no;
 341     fi;])
 342 if test x$enable_warnings = xyes ; then
 343   lyx_flags="$lyx_flags warnings"
 344 fi
 345
 346 ### We might want to disable debug
 347 AC_ARG_ENABLE(debug,
 348   AC_HELP_STRING([--enable-debug],[enable debug information]),,
 349   [AS_CASE([$build_type], [rel*], [enable_debug=no], [enable_debug=yes])]
 350 )
 351
 352 AC_ARG_ENABLE(stdlib-debug,
 353   AC_HELP_STRING([--enable-stdlib-debug],[enable debug mode in the standard library]),,
 354   [AS_CASE([$build_type], [dev*], [enable_stdlib_debug=yes],
 355           [enable_stdlib_debug=no])]
 356 )
 357
 358 ### set up optimization
 359 AC_ARG_ENABLE(optimization,
 360     AC_HELP_STRING([--enable-optimization@<:@=ARG@:>@],[enable compiler optimisation]),,
 361     enable_optimization=yes;)
 362 case $enable_optimization in
 363     yes)
 364         if test $lyx_devel_version = yes ; then
 365             lyx_optim=-O
 366         else
 367             lyx_optim=-O2
 368         fi;;
 369     no) lyx_optim=;;
 370     *) lyx_optim=${enable_optimization};;
 371 esac
 372
 373 AC_ARG_ENABLE(assertions,
 374   AC_HELP_STRING([--enable-assertions],[add runtime sanity checks in the program]),,
 375   [AS_CASE([$build_type], [dev*|pre*], [enable_assertions=yes],
 376           [enable_assertions=no])]
 377 )
 378 if test "x$enable_assertions" = xyes ; then
 379    lyx_flags="$lyx_flags assertions"
 380    AC_DEFINE(ENABLE_ASSERTIONS,1,
 381     [Define if you want assertions to be enabled in the code])
 382 fi
 383
 384 # set the compiler options correctly.
 385 if test x$GXX = xyes; then
 386   dnl clang++ pretends to be g++ 4.2.1; this is not useful
 387   if test x$CLANG = xno; then
 388     dnl Useful for global version info
 389     gxx_version=`${CXX} -dumpversion`
 390     CXX_VERSION="($gxx_version)"
 391   else
 392     gxx_version=clang-$clang_version
 393     CXX_VERSION="($clang_version)"
 394   fi
 395
 396   AM_CXXFLAGS="$lyx_optim $AM_CXXFLAGS"
 397   if test x$enable_debug = xyes ; then
 398       AM_CXXFLAGS="-g $AM_CXXFLAGS"
 399   fi
 400   if test $build_type = gprof ; then
 401     AM_CXXFLAGS="$AM_CXXFLAGS -pg"
 402     AM_LDFLAGS="$AM_LDFLAGS -pg"
 403   fi
 404   if test $build_type = profiling ; then
 405     AM_CXXFLAGS="$AM_CXXFLAGS -fno-omit-frame-pointer"
 406   fi
 407
 408   if test x$USE_QT5 = xyes ; then
 409       AS_CASE([$host], [*mingw*|*cygwin*], [], [AM_CXXFLAGS="-fPIC $AM_CXXFLAGS"])
 410   fi
 411   dnl Warnings are for preprocessor too
 412   if test x$enable_warnings = xyes ; then
 413       AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra"
 414   fi
 415   case $gxx_version in
 416       2.*|3.*) AC_ERROR([gcc >= 4.6 is required]);;
 417       4.0*|4.1*|4.2*|4.3*|4.4*|4.5*) AC_ERROR([gcc >= 4.6 is required]);;
 418   esac
 419   if test x$enable_stdlib_debug = xyes ; then
 420     dnl FIXME: for clang/libc++, one should define _LIBCPP_DEBUG2=0
 421     dnl See http://clang-developers.42468.n3.nabble.com/libc-debug-mode-td3336742.html
 422     case $gxx_version in
 423       *)
 424         lyx_flags="$lyx_flags stdlib-debug"
 425         AC_DEFINE(_GLIBCXX_DEBUG, 1, [libstdc++ debug mode])
 426         AC_DEFINE(_GLIBCXX_DEBUG_PEDANTIC, 1, [libstdc++ pedantic debug mode])
 427         AC_SUBST(STDLIB_DEBUG, "-D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC")
 428         ;;
 429     esac
 430   fi
 431 fi
 432
 433 # Some additional flags may be needed
 434 if test x$GXX = xyes; then
 435     case $gxx_version in
 436       clang-3.0*|clang-3.1*|clang-3.2*|clang-3.3*)
 437         dnl boost contains pragmas that are annoying on older clang versions
 438         AM_CPPFLAGS="-Wno-unknown-pragmas $AM_CPPFLAGS";;
 439       clang*)
 440         dnl the more recent versions support the deprecated-register warning,
 441         dnl which  is very annoying with Qt4.x right now.
 442         AM_CXXFLAGS="$AM_CXXFLAGS -Wno-deprecated-register";;
 443     esac
 444 fi
 445 ])
 446
 447 dnl Usage: LYX_USE_INCLUDED_BOOST : select if the included boost should
 448 dnl        be used.
 449 AC_DEFUN([LYX_USE_INCLUDED_BOOST],[
 450         AC_MSG_CHECKING([whether to use included boost library])
 451         AC_ARG_WITH(included-boost,
 452             [AC_HELP_STRING([--without-included-boost], [do not use the boost lib supplied with LyX, try to find one in the system directories - compilation will abort if nothing suitable is found])],
 453             [lyx_cv_with_included_boost=$withval],
 454             [lyx_cv_with_included_boost=yes])
 455         AM_CONDITIONAL(USE_INCLUDED_BOOST, test x$lyx_cv_with_included_boost = xyes)
 456         AC_MSG_RESULT([$lyx_cv_with_included_boost])
 457         if test x$lyx_cv_with_included_boost = xyes ; then
 458             lyx_included_libs="$lyx_included_libs boost"
 459             BOOST_INCLUDES='-I$(top_srcdir)/3rdparty/boost'
 460             if test $lyx_std_regex = yes ; then
 461               BOOST_LIBS=""
 462             else
 463               BOOST_LIBS='$(top_builddir)/3rdparty/boost/liblyxboost.a'
 464             fi
 465         else
 466             BOOST_INCLUDES=
 467             if test $lyx_std_regex = yes ; then
 468               BOOST_LIBS=""
 469             else
 470               AC_LANG_PUSH(C++)
 471               save_LIBS=$LIBS
 472
 473               AC_MSG_CHECKING([for multithreaded boost libraries])
 474               LIBS="$save_LIBS -lboost_regex-mt $LIBTHREAD"
 475               AC_LINK_IFELSE(
 476                 [AC_LANG_PROGRAM([#include <boost/regex.hpp>],
 477                         [boost::regex reg;])],
 478                 [AC_MSG_RESULT([yes])
 479                  BOOST_MT="-mt"],
 480                 [AC_MSG_RESULT([no])
 481                  AC_MSG_CHECKING([for plain boost libraries])
 482                  LIBS="$save_LIBS -lboost_regex"
 483                  AC_LINK_IFELSE(
 484                      [AC_LANG_PROGRAM([#include <boost/regex.hpp>],
 485                              [boost::regex reg;])],
 486                      [AC_MSG_RESULT([yes])
 487                       BOOST_MT=""],
 488                      [AC_MSG_RESULT([no])
 489                       AC_MSG_ERROR([cannot find suitable boost library (do not use --without-included-boost)])
 490                  ])
 491               ])
 492               LIBS=$save_LIBS
 493               AC_LANG_POP(C++)
 494
 495               dnl In general, system boost libraries are incompatible with
 496               dnl the use of stdlib-debug in libstdc++. See ticket #9736 for
 497               dnl details.
 498               if test $enable_stdlib_debug = "yes" ; then
 499                 LYX_WARNING([Compiling LyX with stdlib-debug and system boost libraries may lead to
 500    crashes. Consider using --disable-stdlib-debug or removing
 501    --without-included-boost.])
 502               fi
 503
 504               BOOST_LIBS="-lboost_regex${BOOST_MT}"
 505             fi
 506         fi
 507         AC_SUBST(BOOST_INCLUDES)
 508         AC_SUBST(BOOST_LIBS)
 509 ])
 510
 511
 512 dnl Usage: LYX_USE_INCLUDED_ICONV : select if the included iconv should
 513 dnl        be used.
 514 AC_DEFUN([LYX_USE_INCLUDED_ICONV],[
 515   AC_MSG_CHECKING([whether to use included iconv library])
 516   AC_ARG_WITH(included-iconv,
 517     [AC_HELP_STRING([--with-included-iconv], [use the iconv lib supplied with LyX instead of the system one])],
 518     [lyx_cv_with_included_iconv=$withval],
 519     [lyx_cv_with_included_iconv=no])
 520   AM_CONDITIONAL(USE_INCLUDED_ICONV, test x$lyx_cv_with_included_iconv = xyes)
 521   AC_MSG_RESULT([$lyx_cv_with_included_iconv])
 522   if test x$lyx_cv_with_included_iconv = xyes ; then
 523   lyx_included_libs="$lyx_included_libs iconv"
 524
 525 dnl Some bits from libiconv configure.ac to avoid a nested configure call:
 526     AC_EILSEQ
 527     AC_TYPE_MBSTATE_T
 528     AC_CHECK_FUNCS([getc_unlocked mbrtowc wcrtomb mbsinit setlocale])
 529 dnl Ymbstate_t is used if HAVE_WCRTOMB || HAVE_MBRTOWC, see 3rdparty/libiconv/1.14/lib/loop_wchar.h.
 530     if test $ac_cv_func_wcrtomb = yes || test $ac_cv_func_mbrtowc = yes; then
 531       USE_MBSTATE_T=1
 532     else
 533       USE_MBSTATE_T=0
 534     fi
 535     AC_SUBST([USE_MBSTATE_T])
 536     AC_CACHE_CHECK([whether <wchar.h> is standalone],
 537       [gl_cv_header_wchar_h_standalone],
 538       [AC_COMPILE_IFELSE(
 539         [AC_LANG_PROGRAM(
 540           [[#include <wchar.h>
 541             wchar_t w;]],
 542           [[]])],
 543         [gl_cv_header_wchar_h_standalone=yes],
 544         [gl_cv_header_wchar_h_standalone=no])])
 545     if test $gl_cv_header_wchar_h_standalone = yes; then
 546       BROKEN_WCHAR_H=0
 547     else
 548       BROKEN_WCHAR_H=1
 549     fi
 550     AC_SUBST([BROKEN_WCHAR_H])
 551 dnl we want const correctness
 552     AC_DEFINE_UNQUOTED([ICONV_CONST], [const],
 553       [Define as const if the declaration of iconv() needs const.])
 554     ICONV_CONST=const
 555     AC_SUBST([ICONV_CONST])
 556 dnl we build a static lib
 557     DLL_VARIABLE=
 558     AC_SUBST([DLL_VARIABLE])
 559     ICONV_INCLUDES='-I$(top_srcdir)/3rdparty/libiconv/1.14 -I$(top_builddir)/3rdparty/libiconv'
 560     ICONV_LIBS='\$(top_builddir)/3rdparty/libiconv/liblyxiconv.a'
 561     ICONV_ICONV_H_IN=3rdparty/libiconv/iconv.h:3rdparty/libiconv/1.14/include/iconv.h.in
 562   else
 563     ICONV_INCLUDES=
 564     AM_ICONV
 565     if test "$am_cv_func_iconv" = no; then
 566       AC_MSG_ERROR([cannot find required library iconv.])
 567     else
 568       ICONV_LIBS="$LIBICONV"
 569     fi
 570     ICONV_ICONV_H_IN=
 571   fi
 572   AC_SUBST(ICONV_INCLUDES)
 573   AC_SUBST(ICONV_LIBS)
 574   AC_SUBST(ICONV_ICONV_H_IN)
 575 ])
 576
 577
 578 dnl Usage: LYX_USE_INCLUDED_ZLIB : select if the included zlib should
 579 dnl        be used.
 580 AC_DEFUN([LYX_USE_INCLUDED_ZLIB],[
 581   AC_MSG_CHECKING([whether to use included zlib library])
 582   AC_ARG_WITH(included-zlib,
 583     [AC_HELP_STRING([--with-included-zlib], [use the zlib lib supplied with LyX instead of the system one])],
 584     [lyx_cv_with_included_zlib=$withval],
 585     [lyx_cv_with_included_zlib=no])
 586   AM_CONDITIONAL(USE_INCLUDED_ZLIB, test x$lyx_cv_with_included_zlib = xyes)
 587   AC_MSG_RESULT([$lyx_cv_with_included_zlib])
 588   if test x$lyx_cv_with_included_zlib = xyes ; then
 589     lyx_included_libs="$lyx_included_libs zlib"
 590     ZLIB_INCLUDES='-I$(top_srcdir)/3rdparty/zlib/1.2.8 -I$(top_builddir)/3rdparty/zlib'
 591     ZLIB_LIBS='$(top_builddir)/3rdparty/zlib/liblyxzlib.a'
 592     mkdir -p 3rdparty/zlib
 593 dnl include standard config.h for HAVE_UNISTD_H
 594     echo "#include <../../config.h>" > 3rdparty/zlib/zconf.h
 595 dnl prevent clash with system zlib that might be dragged in by other libs
 596     echo "#define Z_PREFIX 1" >> 3rdparty/zlib/zconf.h
 597     cat "${srcdir}/3rdparty/zlib/1.2.8/zconf.h.in" >> 3rdparty/zlib/zconf.h
 598   else
 599     ZLIB_INCLUDES=
 600     AC_CHECK_HEADERS(zlib.h,
 601       [AC_CHECK_LIB(z, gzopen, [ZLIB_LIBS="-lz"], LYX_LIB_ERROR(libz,zlib))],
 602       [LYX_LIB_ERROR(zlib.h,zlib)])
 603   fi
 604   AC_SUBST(ZLIB_INCLUDES)
 605   AC_SUBST(ZLIB_LIBS)
 606 ])
 607
 608
 609 dnl Usage: LYX_CHECK_CALLSTACK_PRINTING: define LYX_CALLSTACK_PRINTING if the
 610 dnl        necessary APIs are available to print callstacks.
 611 AC_DEFUN([LYX_CHECK_CALLSTACK_PRINTING],
 612 [AC_CACHE_CHECK([whether printing callstack is possible],
 613                [lyx_cv_callstack_printing],
 614 [AC_TRY_COMPILE([
 615 #include <execinfo.h>
 616 #include <cxxabi.h>
 617 ], [
 618         void* array[200];
 619         size_t size = backtrace(array, 200);
 620         backtrace_symbols(array, size);
 621         int status = 0;
 622         abi::__cxa_demangle("abcd", 0, 0, &status);
 623 ],
 624 [lyx_cv_callstack_printing=yes], [lyx_cv_callstack_printing=no])])
 625 if test x"$lyx_cv_callstack_printing" = xyes; then
 626   AC_DEFINE([LYX_CALLSTACK_PRINTING], 1,
 627             [Define if callstack can be printed])
 628 fi
 629 ])
 630
 631
 632 dnl Usage: LYX_USE_INCLUDED_MYTHES : select if the included MyThes should
 633 dnl        be used.
 634 AC_DEFUN([LYX_USE_INCLUDED_MYTHES],[
 635   AC_ARG_WITH(included-mythes,
 636     [AC_HELP_STRING([--with-included-mythes], [force to use the MyThes lib supplied with LyX])],
 637     [use_included_mythes=$withval],
 638     [use_included_mythes=no])
 639   if test x$use_included_mythes != xyes ; then
 640     AC_LANG_PUSH(C++)
 641     use_included_mythes=yes
 642     AC_CHECK_HEADERS([mythes.hxx mythes/mythes.hxx],
 643       [mythes_h_location="<$ac_header>"
 644        save_LIBS=$LIBS
 645        AC_MSG_CHECKING([checking for MyThes library])
 646        for ac_lib in mythes mythes-1.2 ; do
 647          LIBS="-l$ac_lib $save_LIBS"
 648          AC_LINK_IFELSE(
 649            [AC_LANG_PROGRAM([#include <cstdio>]
 650               [#include $mythes_h_location], [MyThes dummy("idx","dat")])],
 651            [MYTHES_LIBS=-l$ac_lib
 652             AC_MSG_RESULT([$MYTHES_LIBS])
 653             use_included_mythes=no])
 654        done
 655        if test $use_included_mythes != no ; then
 656          AC_MSG_RESULT([not found])
 657        fi
 658        break])
 659     AC_LANG_POP(C++)
 660   fi
 661   if test $use_included_mythes = yes ; then
 662     mythes_h_location="<mythes.hxx>"
 663     MYTHES_INCLUDES='-I$(top_srcdir)/3rdparty/mythes/1.2.5/'
 664     MYTHES_LIBS='$(top_builddir)/3rdparty/mythes/liblyxmythes.a'
 665     lyx_included_libs="$lyx_included_libs mythes"
 666   fi
 667   AM_CONDITIONAL(USE_INCLUDED_MYTHES, test x$use_included_mythes = xyes)
 668   AC_DEFINE_UNQUOTED(MYTHES_H_LOCATION,$mythes_h_location,[Location of mythes.hxx])
 669   AC_SUBST(MYTHES_INCLUDES)
 670   AC_SUBST(MYTHES_LIBS)
 671   AC_MSG_CHECKING([whether to use included MyThes library])
 672   AC_MSG_RESULT([$use_included_mythes])
 673 ])
 674
 675
 676 dnl Usage: LYX_WITH_DIR(dir-name,desc,dir-var-name,default-value,
 677 dnl                       [default-yes-value])
 678 dnl  Adds a --with-'dir-name' option (described by 'desc') and puts the
 679 dnl  resulting directory name in 'dir-var-name'.
 680 AC_DEFUN([LYX_WITH_DIR],[
 681   AC_ARG_WITH($1,[AC_HELP_STRING([--with-$1],[specify $2])])
 682   AC_MSG_CHECKING([for $2])
 683   if test -z "$with_$3"; then
 684      AC_CACHE_VAL(lyx_cv_$3, lyx_cv_$3=$4)
 685   else
 686     test "x$with_$3" = xyes && with_$3=$5
 687     lyx_cv_$3="$with_$3"
 688   fi
 689   AC_MSG_RESULT($lyx_cv_$3)
 690 ])
 691
 692
 693 dnl Usage: LYX_LOOP_DIR(value,action)
 694 dnl Executes action for values of variable `dir' in `values'. `values' can
 695 dnl use ":" as a separator.
 696 AC_DEFUN([LYX_LOOP_DIR],[
 697 IFS="${IFS=     }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
 698 for dir in `eval "echo $1"`; do
 699   if test ! "$dir" = NONE; then
 700     test ! -d "$dir" && AC_MSG_ERROR([\"$dir\" is not a directory])
 701     $2
 702   fi
 703 done
 704 IFS=$ac_save_ifs
 705 ])
 706
 707
 708 dnl Usage: LYX_ADD_LIB_DIR(var-name,dir) Adds a -L directive to variable
 709 dnl var-name.
 710 AC_DEFUN([LYX_ADD_LIB_DIR],[
 711 $1="${$1} -L$2"
 712 if test "`(uname) 2>/dev/null`" = SunOS &&
 713     uname -r | grep '^5' >/dev/null; then
 714   if test $ac_cv_prog_gxx = yes ; then
 715     $1="${$1} -Wl[,]-R$2"
 716   else
 717     $1="${$1} -R$2"
 718   fi
 719 fi])
 720
 721
 722 dnl Usage: LYX_ADD_INC_DIR(var-name,dir) Adds a -I directive to variable
 723 dnl var-name.
 724 AC_DEFUN([LYX_ADD_INC_DIR],[$1="${$1} -I$2 "])
 725
 726 ### Check for a headers existence and location iff it exists
 727 ## This is supposed to be a generalised version of LYX_STL_STRING_FWD
 728 ## It almost works.  I've tried a few variations but they give errors
 729 ## of one sort or other: bad substitution or file not found etc.  The
 730 ## actual header _is_ found though and the cache variable is set however
 731 ## the reported setting (on screen) is equal to $ac_safe for some unknown
 732 ## reason.
 733 ## Additionally, autoheader can't figure out what to use as the name in
 734 ## the config.h.in file so we need to write our own entries there -- one for
 735 ## each header in the form PATH_HEADER_NAME_H
 736 ##
 737 AC_DEFUN([LYX_PATH_HEADER],
 738 [ AC_CHECK_HEADER($1,[
 739   ac_tr_safe=PATH_`echo $ac_safe | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
 740 ### the only remaining problem is getting the second parameter to this
 741 ### AC_CACHE_CACHE to print correctly. Currently it just results in value
 742 ### of $ac_safe being printed.
 743   AC_CACHE_CHECK([path to $1],[lyx_cv_path2_$ac_safe],
 744   [ cat > conftest.$ac_ext <<EOF
 745 #line __oline__ "configure"
 746 #include "confdefs.h"
 747
 748 #include <$1>
 749 EOF
 750 lyx_path_header_path=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
 751   grep $1  2>/dev/null | \
 752   sed -e 's/.*\(".*$1"\).*/\1/' -e "1q"`
 753 eval "lyx_cv_path2_${ac_safe}=\$lyx_path_header_path"
 754 rm -f conftest*])
 755   AC_DEFINE_UNQUOTED($ac_tr_safe, $lyx_path_header_path, [dummy])])
 756 ])
 757 ### end of LYX_PATH_HEADER
 758
 759 ## Check what kind of packaging should be used at install time.
 760 ## The default is autodetected.
 761 AC_DEFUN([LYX_USE_PACKAGING],
 762 [AC_MSG_CHECKING([what packaging should be used])
 763 AC_ARG_WITH(packaging,
 764   [AC_HELP_STRING([--with-packaging=STR], [set packaging for installation among:
 765                             posix, windows, macosx, haiku (default is autodetected)])],
 766   [lyx_use_packaging="$withval"], [
 767   case $host in
 768     *-apple-darwin*) lyx_use_packaging=macosx ;;
 769     *-pc-mingw*) lyx_use_packaging=windows ;;
 770     *-mingw32*) lyx_use_packaging=windows ;;
 771     *haiku*) lyx_use_packaging=haiku ;;
 772     *) lyx_use_packaging=posix ;;
 773   esac])
 774 AC_MSG_RESULT($lyx_use_packaging)
 775 lyx_install_posix=false
 776 lyx_install_macosx=false
 777 lyx_install_cygwin=false
 778 lyx_install_windows=false
 779 case $lyx_use_packaging in
 780    macosx) AC_DEFINE(USE_MACOSX_PACKAGING, 1, [Define to 1 if LyX should use a MacOS X application bundle file layout])
 781            PACKAGE=LyX${version_suffix}
 782            default_prefix="/Applications/${PACKAGE}.app"
 783            AC_SUBST(osx_bundle_program_name,"${program_base_name}")
 784            bindir='${prefix}/Contents/MacOS'
 785            libdir='${prefix}/Contents/Resources'
 786            datarootdir='${prefix}/Contents/Resources'
 787            pkgdatadir='${datadir}'
 788            mandir='${datadir}/man'
 789            lyx_install_macosx=true ;;
 790   windows) AC_DEFINE(USE_WINDOWS_PACKAGING, 1, [Define to 1 if LyX should use a Windows-style file layout])
 791            PACKAGE=LyX${version_suffix}
 792            default_prefix="C:/Program Files/${PACKAGE}"
 793            bindir='${prefix}/bin'
 794            libdir='${prefix}/Resources'
 795            datarootdir='${prefix}/Resources'
 796            pkgdatadir='${datadir}'
 797            mandir='${prefix}/Resources/man'
 798            lyx_install_windows=true ;;
 799     posix) AC_DEFINE(USE_POSIX_PACKAGING, 1, [Define to 1 if LyX should use a POSIX-style file layout])
 800            PACKAGE=lyx${version_suffix}
 801            program_suffix=$version_suffix
 802            pkgdatadir='${datadir}/${PACKAGE}'
 803            default_prefix=$ac_default_prefix
 804            case ${host} in
 805              *cygwin*) lyx_install_cygwin=true ;;
 806              *apple-darwin*) lyx_install_macosx=true ;;
 807            esac
 808            lyx_install_posix=true ;;
 809         haiku) AC_DEFINE(USE_HAIKU_PACKAGING, 1, [Define to 1 if LyX should use a Haiku-style file layout])
 810            PACKAGE=lyx${version_suffix}
 811            program_suffix=$version_suffix
 812            pkgdatadir='${datadir}/${PACKAGE}'
 813            default_prefix=$ac_default_prefix
 814            lyx_install_posix=true ;;
 815     *) AC_MSG_ERROR([unknown packaging type $lyx_use_packaging.]) ;;
 816 esac
 817 AM_CONDITIONAL(INSTALL_MACOSX, $lyx_install_macosx)
 818 AM_CONDITIONAL(INSTALL_WINDOWS, $lyx_install_windows)
 819 AM_CONDITIONAL(INSTALL_CYGWIN, $lyx_install_cygwin)
 820 AM_CONDITIONAL(INSTALL_POSIX, $lyx_install_posix)
 821 AC_SUBST(pkgdatadir)
 822 AC_SUBST(program_suffix)
 823 ])
 824
 825
 826 ## ------------------------------------------------------------------------
 827 ## Check whether mkdir() is mkdir or _mkdir, and whether it takes
 828 ## one or two arguments.
 829 ##
 830 ## http://ac-archive.sourceforge.net/C_Support/ac_func_mkdir.html
 831 ## ------------------------------------------------------------------------
 832 ##
 833 AC_DEFUN([AC_FUNC_MKDIR],
 834 [AC_CHECK_FUNCS([mkdir _mkdir])
 835 AC_CACHE_CHECK([whether mkdir takes one argument],
 836                [ac_cv_mkdir_takes_one_arg],
 837 [AC_TRY_COMPILE([
 838 #include <sys/stat.h>
 839 #if HAVE_UNISTD_H
 840 #  include <unistd.h>
 841 #endif
 842 ], [mkdir (".");],
 843 [ac_cv_mkdir_takes_one_arg=yes], [ac_cv_mkdir_takes_one_arg=no])])
 844 if test x"$ac_cv_mkdir_takes_one_arg" = xyes; then
 845   AC_DEFINE([MKDIR_TAKES_ONE_ARG], 1,
 846             [Define if mkdir takes only one argument.])
 847 fi
 848 ])
 849
 850
 851 dnl Set VAR to the canonically resolved absolute equivalent of PATHNAME,
 852 dnl (which may be a relative path, and need not refer to any existing
 853 dnl entity).
 854
 855 dnl On Win32-MSYS build hosts, the returned path is resolved to its true
 856 dnl native Win32 path name, (but with slashes, not backslashes).
 857
 858 dnl On any other system, it is simply the result which would be obtained
 859 dnl if PATHNAME represented an existing directory, and the pwd command was
 860 dnl executed in that directory.
 861 AC_DEFUN([MSYS_AC_CANONICAL_PATH],
 862 [ac_dir="$2"
 863  ( exec 2>/dev/null; cd / && pwd -W ) | grep ':' >/dev/null &&
 864     ac_pwd_w="pwd -W" || ac_pwd_w=pwd
 865  until ac_val=`exec 2>/dev/null; cd "$ac_dir" && $ac_pwd_w`
 866  do
 867    ac_dir=`AS_DIRNAME(["$ac_dir"])`
 868  done
 869  ac_dir=`echo "$ac_dir" | sed 's?^[[./]]*??'`
 870  ac_val=`echo "$ac_val" | sed 's?/*$[]??'`
 871  $1=`echo "$2" | sed "s?^[[./]]*$ac_dir/*?$ac_val/?"'
 872    s?/*$[]??'`
 873 ])
 874
 875 dnl this is used by the macro blow to general a proper config.h.in entry
 876 m4_define([LYX_AH_CHECK_DECL],
 877 [AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_$1),
 878   [Define if you have the prototype for function `$1'])])
 879
 880 dnl Check things are declared in headers to avoid errors or warnings.
 881 dnl Called like LYX_CHECK_DECL(function, header1 header2...)
 882 dnl Defines HAVE_DECL_{FUNCTION}
 883 AC_DEFUN([LYX_CHECK_DECL],
 884 [LYX_AH_CHECK_DECL($1)
 885 for ac_header in $2
 886 do
 887   AC_MSG_CHECKING([if $1 is declared by header $ac_header])
 888   AC_EGREP_HEADER($1, $ac_header,
 889       [AC_MSG_RESULT(yes)
 890        AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DECL_$1))
 891        break],
 892       [AC_MSG_RESULT(no)])
 893 done])
 894
 895 dnl this is used by the macro below to generate a proper config.h.in entry
 896 m4_define([LYX_AH_CHECK_DEF],
 897 [AH_TEMPLATE(AS_TR_CPP(HAVE_DEF_$1),
 898   [Define to 1 if `$1' is defined in `$2'])])
 899
 900 dnl Check whether name is defined in header by using it in codesnippet.
 901 dnl Called like LYX_CHECK_DEF(name, header, codesnippet)
 902 dnl Defines HAVE_DEF_{NAME}
 903 AC_DEFUN([LYX_CHECK_DEF],
 904 [LYX_AH_CHECK_DEF($1, $2)
 905  AC_MSG_CHECKING([whether $1 is defined by header $2])
 906  save_CPPFLAGS=$CPPFLAGS
 907  CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
 908  save_CXXFLAGS=$CXXFLAGS
 909  CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
 910  AC_LANG_PUSH(C++)
 911  AC_TRY_COMPILE([#include <$2>], [$3],
 912      lyx_have_def_name=yes,
 913      lyx_have_def_name=no)
 914  AC_LANG_POP(C++)
 915  CXXFLAGS=$save_CXXFLAGS
 916  CPPFLAGS=$save_CPPFLAGS
 917  AC_MSG_RESULT($lyx_have_def_name)
 918  if test "x$lyx_have_def_name" = xyes; then
 919    AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DEF_$1))
 920  fi
 921 ])
 922
 923 dnl Extract the single digits from PACKAGE_VERSION and make them available.
 924 dnl Defines LYX_MAJOR_VERSION, LYX_MINOR_VERSION, LYX_RELEASE_LEVEL,
 925 dnl LYX_RELEASE_PATCH (possibly equal to 0), LYX_DIR_VER, and LYX_USERDIR_VER.
 926 AC_DEFUN([LYX_SET_VERSION_INFO],
 927 [lyx_major=`echo $PACKAGE_VERSION | sed -e 's/[[.]].*//'`
 928  lyx_patch=`echo $PACKAGE_VERSION | sed -e "s/^$lyx_major//" -e 's/^.//'`
 929  lyx_minor=`echo $lyx_patch | sed -e 's/[[.]].*//'`
 930  lyx_patch=`echo $lyx_patch | sed -e "s/^$lyx_minor//" -e 's/^.//'`
 931  lyx_release=`echo $lyx_patch | sed -e 's/[[^0-9]].*//'`
 932  lyx_patch=`echo $lyx_patch | sed -e "s/^$lyx_release//" -e 's/^[[.]]//' -e 's/[[^0-9]].*//'`
 933  test "x$lyx_patch" = "x" && lyx_patch=0
 934  lyx_dir_ver=LYX_DIR_${lyx_major}${lyx_minor}x
 935  lyx_userdir_ver=LYX_USERDIR_${lyx_major}${lyx_minor}x
 936  AC_SUBST(LYX_MAJOR_VERSION,$lyx_major)
 937  AC_SUBST(LYX_MINOR_VERSION,$lyx_minor)
 938  AC_SUBST(LYX_RELEASE_LEVEL,$lyx_release)
 939  AC_SUBST(LYX_RELEASE_PATCH,$lyx_patch)
 940  AC_SUBST(LYX_DIR_VER,"$lyx_dir_ver")
 941  AC_SUBST(LYX_USERDIR_VER,"$lyx_userdir_ver")
 942 ])
 943