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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   AS_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 $build_type in
35     development) lyx_devel_version=yes
36                  LYX_DATE="not released yet" ;;
37     prerelease) lyx_prerelease=yes ;;
38 esac
39
40 AC_SUBST(lyx_devel_version)
41 ])
42
43
44 dnl Define the option to set a LyX version on installed executables and directories
45 dnl
46 dnl
47 AC_DEFUN([LYX_VERSION_SUFFIX],[
48 AC_MSG_CHECKING([for version suffix])
49 dnl We need the literal double quotes in the rpm spec file
50 RPM_VERSION_SUFFIX='""'
51 AC_ARG_WITH(version-suffix,
52   [AS_HELP_STRING([--with-version-suffix@<:@=STR@:>@], install lyx files as lyxSTR (default STR: -AC_PACKAGE_VERSION))],
53   [if test "x$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([$withval])
63 ])
64
65
66 dnl Check whether to configure for Qt4 or Qt5. Default is Qt5.
67 dnl
68 AC_DEFUN([LYX_CHECK_QT5],[
69 AC_MSG_CHECKING([whether Qt5 is disabled])
70 AC_ARG_ENABLE([qt5],
71   [AS_HELP_STRING([--disable-qt5],[do not use Qt5 for building])],
72   USE_QT5=$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_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
146 #ifndef __clang__
147             this is not clang
148 #endif
149 ]])],[lyx_cv_prog_clang=yes ; CLANG=yes],[lyx_cv_prog_clang=no ; CLANG=no])])
150 if test $CLANG = yes ; then
151   AC_CACHE_CHECK([for clang version],
152     [lyx_cv_clang_version],
153     [clang_noversion=no
154      AC_COMPUTE_INT(clang_major,__clang_major__,,[clang_noversion_=yes])
155      AC_COMPUTE_INT(clang_minor,__clang_minor__,,[clang_noversion_=yes])
156      AC_COMPUTE_INT(clang_patchlevel,__clang_patchlevel__,,[clang_noversion_=yes])
157      if test $clang_noversion = yes ; then
158        clang_version=unknown
159      else
160        clang_version=$clang_major.$clang_minor.$clang_patchlevel
161      fi
162      lyx_cv_clang_version=$clang_version])
163 fi
164 ])
165
166
167 dnl Usage: LYX_CXX_CXX11_FLAGS: add to AM_CXXFLAGS the best flag that
168 selects C++11 mode; gives an error when C++11 mode is not found.
169 AC_DEFUN([LYX_CXX_CXX11_FLAGS],
170 [AC_CACHE_CHECK([for at least C++11 mode], [lyx_cv_cxx11_flags],
171  [lyx_cv_cxx11_flags=none
172   for flag in -std=c++14 -std=c++11 "" -std=gnu++14 -std=gnu++11 ; do
173     save_CPPFLAGS=$CPPFLAGS
174     CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
175     save_CXXFLAGS=$CXXFLAGS
176     CXXFLAGS="$flag $AM_CXXFLAGS $CXXFLAGS"
177     dnl sample openmp source code to test
178     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
179        template <typename T>
180        struct check
181        {
182            static_assert(sizeof(int) <= sizeof(T), "not big enough");
183        };
184
185        typedef check<check<bool>> right_angle_brackets;
186
187        class TestDeleted
188        {
189        public:
190            TestDeleted() = delete;
191        };
192
193
194        int a;
195        decltype(a) b;
196
197        typedef check<int> check_type;
198        check_type c;
199        check_type&& cr = static_cast<check_type&&>(c);
200
201        auto d = a;]], [[]])],[lyx_cv_cxx11_flags=$flag; break],[])
202    CXXFLAGS=$save_CXXFLAGS
203    CPPFLAGS=$save_CPPFLAGS
204   done])
205   if test $lyx_cv_cxx11_flags = none ; then
206     AC_MSG_ERROR([Cannot find suitable C++11 mode for compiler $CXX])
207   fi
208   AM_CXXFLAGS="$lyx_cv_cxx11_flags $AM_CXXFLAGS"
209 ])
210
211
212 dnl Usage: LYX_CXX_USE_REGEX
213 dnl decide whether we want to use std::regex and set the
214 dnl LYX_USE_STD_REGEX macro and conditional accordingly.
215 AC_DEFUN([LYX_CXX_USE_REGEX],
216 [AC_ARG_ENABLE(std-regex,
217   AS_HELP_STRING([--enable-std-regex],[use std::regex instead of boost::regex (default is autodetected)]),
218   [lyx_std_regex=$enableval],
219   [AC_MSG_CHECKING([for correct regex implementation])
220    save_CPPFLAGS=$CPPFLAGS
221    CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
222    save_CXXFLAGS=$CXXFLAGS
223    CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
224    # The following code snippet has been taken taken from example in
225    #   http://stackoverflow.com/questions/8561850/compile-stdregex-iterator-with-gcc
226    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
227         #include <regex>
228         #include <iostream>
229
230         #include <string.h>
231
232         typedef std::regex_iterator<const char *> Myiter;
233      ]], [[
234         const char *pat = "axayaz";
235         Myiter::regex_type rx("a");
236         Myiter next(pat, pat + strlen(pat), rx);
237         Myiter end;
238    ]])],[lyx_std_regex=yes],[lyx_std_regex=no])
239    CXXFLAGS=$save_CXXFLAGS
240    CPPFLAGS=$save_CPPFLAGS
241    AC_MSG_RESULT([$lyx_std_regex])
242  ])
243
244  if test $lyx_std_regex = yes ; then
245   lyx_flags="$lyx_flags std-regex"
246   AC_DEFINE([LYX_USE_STD_REGEX], 1, [define to 1 if std::regex should be preferred to boost::regex])
247  fi
248  AM_CONDITIONAL([LYX_USE_STD_REGEX], test $lyx_std_regex = yes)
249 ])
250
251
252 dnl Usage: LYX_CXX_USE_CALL_ONCE
253 dnl check whether we can use std::call_once and set the
254 dnl LYX_USE_STD_CALL_ONCE macro and conditional accordingly.
255 AC_DEFUN([LYX_CXX_USE_CALL_ONCE],
256 [AC_MSG_CHECKING([for std::call_once availability])
257    save_CPPFLAGS=$CPPFLAGS
258    CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
259    save_CXXFLAGS=$CXXFLAGS
260    CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
261    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
262         #include <mutex>
263         static std::once_flag flag;
264      ]], [[
265         std::call_once(flag, [](){ return; });
266    ]])],[lyx_std_call_once=yes],[lyx_std_call_once=no])
267    CXXFLAGS=$save_CXXFLAGS
268    CPPFLAGS=$save_CPPFLAGS
269    AC_MSG_RESULT([$lyx_std_call_once])
270
271  if test $lyx_std_call_once = yes ; then
272   AC_DEFINE([LYX_USE_STD_CALL_ONCE], 1, [define to 1 if std::call_once is supported by the compiler])
273  fi
274  AM_CONDITIONAL([LYX_USE_STD_CALL_ONCE], test $lyx_std_call_once = yes)
275 ])
276
277
278 dnl Usage: LYX_LIB_STDCXX: set lyx_cv_lib_stdcxx to yes if the STL library is libstdc++.
279 AC_DEFUN([LYX_LIB_STDCXX],
280 [AC_CACHE_CHECK([whether STL is libstdc++],
281                [lyx_cv_lib_stdcxx],
282 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include<vector>]], [[
283 #if ! defined(__GLIBCXX__) && ! defined(__GLIBCPP__)
284             this is not libstdc++
285 #endif
286 ]])],[lyx_cv_lib_stdcxx=yes],[lyx_cv_lib_stdcxx=no])])
287 ])
288
289
290 dnl Usage: LYX_LIB_STDCXX_CXX11_ABI: set lyx_cv_lib_stdcxx_cxx11_abi to yes
291 dnl        if the STL library is GNU libstdc++ and the C++11 ABI is used.
292 AC_DEFUN([LYX_LIB_STDCXX_CXX11_ABI],
293 [AC_CACHE_CHECK([whether STL is libstdc++ using the C++11 ABI],
294                [lyx_cv_lib_stdcxx_cxx11_abi],
295 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include<vector>]], [[
296 #if ! defined(_GLIBCXX_USE_CXX11_ABI) || ! _GLIBCXX_USE_CXX11_ABI
297             this is not libstdc++ using the C++11 ABI
298 #endif
299 ]])],[lyx_cv_lib_stdcxx_cxx11_abi=yes],[lyx_cv_lib_stdcxx_cxx11_abi=no])])
300 ])
301
302
303 AC_DEFUN([LYX_PROG_CXX],
304 [AC_REQUIRE([AC_PROG_CXX])
305 AC_REQUIRE([AC_PROG_CXXCPP])
306
307 AC_LANG_PUSH(C++)
308 LYX_PROG_CLANG
309 LYX_CXX_CXX11_FLAGS
310 LYX_LIB_STDCXX
311 LYX_LIB_STDCXX_CXX11_ABI
312 LYX_CXX_USE_REGEX
313 LYX_CXX_USE_CALL_ONCE
314 AC_LANG_POP(C++)
315
316 if test $lyx_cv_lib_stdcxx = "yes" ; then
317   if test $lyx_cv_lib_stdcxx_cxx11_abi = "yes" ; then
318     AC_DEFINE(USE_GLIBCXX_CXX11_ABI, 1, [use GNU libstdc++ with C++11 ABI])
319   else
320     AC_DEFINE(STD_STRING_USES_COW, 1, [std::string uses copy-on-write])
321   fi
322 else
323   if test $lyx_cv_prog_clang = "yes" ; then
324     AC_DEFINE(USE_LLVM_LIBCPP, 1, [use libc++ provided by llvm instead of GNU libstdc++])
325   fi
326 fi
327
328 ### We might want to get or shut warnings.
329 AC_ARG_ENABLE(warnings,
330   AS_HELP_STRING([--enable-warnings],[tell the compiler to display more warnings]),,
331   [ if test $lyx_devel_version = yes -o $lyx_prerelease = yes && test $GXX = yes ; then
332         enable_warnings=yes;
333     else
334         enable_warnings=no;
335     fi;])
336 if test x$enable_warnings = xyes ; then
337   lyx_flags="$lyx_flags warnings"
338 fi
339
340 ### We might want to disable debug
341 AC_ARG_ENABLE(debug,
342   AS_HELP_STRING([--enable-debug],[enable debug information]),,
343   [AS_CASE([$build_type], [rel*], [enable_debug=no], [enable_debug=yes])]
344 )
345
346 AC_ARG_ENABLE(stdlib-debug,
347   AS_HELP_STRING([--enable-stdlib-debug],[enable debug mode in the standard library]),,
348   [AS_CASE([$build_type], [dev*], [enable_stdlib_debug=yes], 
349           [enable_stdlib_debug=no])]
350 )
351
352 ### set up optimization
353 AC_ARG_ENABLE(optimization,
354     AS_HELP_STRING([--enable-optimization@<:@=ARG@:>@],[enable compiler optimisation]),,
355     enable_optimization=yes;)
356 case $enable_optimization in
357     yes)
358         if test $lyx_devel_version = yes ; then
359             lyx_optim=-O
360         else
361             lyx_optim=-O2
362         fi;;
363     no) lyx_optim=;;
364     *) lyx_optim=${enable_optimization};;
365 esac
366
367 AC_ARG_ENABLE(assertions,
368   AS_HELP_STRING([--enable-assertions],[add runtime sanity checks in the program]),,
369   [AS_CASE([$build_type], [dev*|pre*], [enable_assertions=yes],
370           [enable_assertions=no])]
371 )
372 if test "x$enable_assertions" = xyes ; then
373    lyx_flags="$lyx_flags assertions"
374    AC_DEFINE(ENABLE_ASSERTIONS,1,
375     [Define if you want assertions to be enabled in the code])
376 fi
377
378 # set the compiler options correctly.
379 if test x$GXX = xyes; then
380   dnl clang++ pretends to be g++ 4.2.1; this is not useful
381   if test x$CLANG = xno; then
382     dnl Useful for global version info
383     gxx_version=`${CXX} -dumpversion`
384     case $gxx_version in
385         *.*) ;;
386         *) gxx_version=`${CXX} -dumpfullversion` ;;
387     esac
388     CXX_VERSION="($gxx_version)"
389   else
390     gxx_version=clang-$clang_version
391     CXX_VERSION="($clang_version)"
392   fi
393
394   AM_CXXFLAGS="$lyx_optim $AM_CXXFLAGS"
395   if test x$enable_debug = xyes ; then
396       AM_CXXFLAGS="-g $AM_CXXFLAGS"
397   fi
398   if test $build_type = gprof ; then
399     AM_CXXFLAGS="$AM_CXXFLAGS -pg"
400     AM_LDFLAGS="$AM_LDFLAGS -pg"
401   fi
402   if test $build_type = profiling ; then
403     AM_CXXFLAGS="$AM_CXXFLAGS -fno-omit-frame-pointer"
404   fi
405
406   if test x$USE_QT5 = xyes ; then
407       AS_CASE([$host], [*mingw*|*cygwin*], [], [AM_CXXFLAGS="-fPIC $AM_CXXFLAGS"])
408   fi
409   dnl Warnings are for preprocessor too
410   if test x$enable_warnings = xyes ; then
411       case $gxx_version in
412           9.*) AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra -Wno-deprecated-copy";;
413           *) AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra";;
414       esac
415     fi
416   case $gxx_version in
417       2.*|3.*|4.@<:@0-6@:>@) AC_MSG_ERROR([gcc >= 4.7 is required]);;
418   esac
419   if test x$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             [AS_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     [AS_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="$LIBICONV"
569     fi
570     ICONV_ICONV_H_IN=
571   fi
572   AC_SUBST(ICONV_INCLUDES)
573   AC_SUBST(ICONV_LIBS)
574   AC_SUBST(ICONV_ICONV_H_IN)
575 ])
576
577
578 dnl Usage: LYX_USE_INCLUDED_ZLIB : select if the included zlib should
579 dnl        be used.
580 AC_DEFUN([LYX_USE_INCLUDED_ZLIB],[
581   AC_MSG_CHECKING([whether to use included zlib library])
582   AC_ARG_WITH(included-zlib,
583     [AS_HELP_STRING([--with-included-zlib], [use the zlib lib supplied with LyX instead of the system one])],
584     [lyx_cv_with_included_zlib=$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_ARG_ENABLE([callstack-printing],
613                [AS_HELP_STRING([--disable-callstack-printing],[do not print a callstack when crashing])],
614                lyx_cv_callstack_printing=$enableval, lyx_cv_callstack_printing=yes)
615
616 if test x"$lyx_cv_callstack_printing" = xyes; then
617   AC_CACHE_CHECK([whether printing callstack is possible],
618                  [lyx_cv_callstack_printing],
619   [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
620   #include <execinfo.h>
621   #include <cxxabi.h>
622   ]], [[
623           void* array[200];
624           size_t size = backtrace(array, 200);
625           backtrace_symbols(array, size);
626           int status = 0;
627           abi::__cxa_demangle("abcd", 0, 0, &status);
628   ]])],[],[lyx_cv_callstack_printing=no])])
629 fi
630 if test x"$lyx_cv_callstack_printing" = xyes; then
631   AC_DEFINE([LYX_CALLSTACK_PRINTING], 1,
632             [Define if callstack can be printed])
633   lyx_flags="$lyx_flags callback-printing"
634   AM_LDFLAGS="${AM_LDFLAGS} -rdynamic"
635 fi
636 ])
637
638
639 dnl Usage: LYX_USE_INCLUDED_MYTHES : select if the included MyThes should
640 dnl        be used.
641 AC_DEFUN([LYX_USE_INCLUDED_MYTHES],[
642   AC_ARG_WITH(included-mythes,
643     [AS_HELP_STRING([--with-included-mythes], [force to use the MyThes lib supplied with LyX])],
644     [use_included_mythes=$withval],
645     [use_included_mythes=no])
646   if test x$use_included_mythes != xyes ; then
647     AC_LANG_PUSH(C++)
648     use_included_mythes=yes
649     AC_CHECK_HEADERS([mythes.hxx mythes/mythes.hxx],
650       [mythes_h_location="<$ac_header>"
651        save_LIBS=$LIBS
652        AC_MSG_CHECKING([checking for MyThes library])
653        for ac_lib in mythes mythes-1.2 ; do
654          LIBS="-l$ac_lib $save_LIBS"
655          AC_LINK_IFELSE(
656            [AC_LANG_PROGRAM([#include <cstdio>]
657               [#include $mythes_h_location], [MyThes dummy("idx","dat")])],
658            [MYTHES_LIBS=-l$ac_lib
659             AC_MSG_RESULT([$MYTHES_LIBS])
660             use_included_mythes=no])
661        done
662        if test $use_included_mythes != no ; then
663          AC_MSG_RESULT([not found])
664        fi
665        break])
666     AC_LANG_POP(C++)
667   fi
668   if test $use_included_mythes = yes ; then
669     mythes_h_location="<mythes.hxx>"
670     MYTHES_INCLUDES='-I$(top_srcdir)/3rdparty/mythes/1.2.5/'
671     MYTHES_LIBS='$(top_builddir)/3rdparty/mythes/liblyxmythes.a'
672     lyx_included_libs="$lyx_included_libs mythes"
673   fi
674   AM_CONDITIONAL(USE_INCLUDED_MYTHES, test x$use_included_mythes = xyes)
675   AC_DEFINE_UNQUOTED(MYTHES_H_LOCATION,$mythes_h_location,[Location of mythes.hxx])
676   AC_SUBST(MYTHES_INCLUDES)
677   AC_SUBST(MYTHES_LIBS)
678   AC_MSG_CHECKING([whether to use included MyThes library])
679   AC_MSG_RESULT([$use_included_mythes])
680 ])
681
682
683 dnl Usage: LYX_WITH_DIR(dir-name,desc,dir-var-name,default-value,
684 dnl                       [default-yes-value])
685 dnl  Adds a --with-'dir-name' option (described by 'desc') and puts the
686 dnl  resulting directory name in 'dir-var-name'.
687 AC_DEFUN([LYX_WITH_DIR],[
688   AC_ARG_WITH($1,[AS_HELP_STRING([--with-$1],[specify $2])])
689   AC_MSG_CHECKING([for $2])
690   if test -z "$with_$3"; then
691      AC_CACHE_VAL(lyx_cv_$3, lyx_cv_$3=$4)
692   else
693     test "x$with_$3" = xyes && with_$3=$5
694     lyx_cv_$3="$with_$3"
695   fi
696   AC_MSG_RESULT($lyx_cv_$3)
697 ])
698
699
700 dnl Usage: LYX_LOOP_DIR(value,action)
701 dnl Executes action for values of variable `dir' in `values'. `values' can
702 dnl use ":" as a separator.
703 AC_DEFUN([LYX_LOOP_DIR],[
704 IFS="${IFS=     }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
705 for dir in `eval "echo $1"`; do
706   if test ! "$dir" = NONE; then
707     test ! -d "$dir" && AC_MSG_ERROR(['$dir' is not a directory])
708     $2
709   fi
710 done
711 IFS=$ac_save_ifs
712 ])
713
714
715 dnl Usage: LYX_ADD_LIB_DIR(var-name,dir) Adds a -L directive to variable
716 dnl var-name.
717 AC_DEFUN([LYX_ADD_LIB_DIR],[
718 $1="${$1} -L$2"
719 if test "`(uname) 2>/dev/null`" = SunOS &&
720     uname -r | grep '^5' >/dev/null; then
721   if test $GXX = yes ; then
722     $1="${$1} -Wl[,]-R$2"
723   else
724     $1="${$1} -R$2"
725   fi
726 fi])
727
728
729 dnl Usage: LYX_ADD_INC_DIR(var-name,dir) Adds a -I directive to variable
730 dnl var-name.
731 AC_DEFUN([LYX_ADD_INC_DIR],[$1="${$1} -I$2 "])
732
733 ### Check for a headers existence and location iff it exists
734 ## This is supposed to be a generalised version of LYX_STL_STRING_FWD
735 ## It almost works.  I've tried a few variations but they give errors
736 ## of one sort or other: bad substitution or file not found etc.  The
737 ## actual header _is_ found though and the cache variable is set however
738 ## the reported setting (on screen) is equal to $ac_safe for some unknown
739 ## reason.
740 ## Additionally, autoheader can't figure out what to use as the name in
741 ## the config.h.in file so we need to write our own entries there -- one for
742 ## each header in the form PATH_HEADER_NAME_H
743 ##
744 AC_DEFUN([LYX_PATH_HEADER],
745 [ AC_CHECK_HEADER($1,[
746   ac_tr_safe=PATH_`echo $ac_safe | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
747 ### the only remaining problem is getting the second parameter to this
748 ### AC_CACHE_CACHE to print correctly. Currently it just results in value
749 ### of $ac_safe being printed.
750   AC_CACHE_CHECK([path to $1],[lyx_cv_path2_$ac_safe],
751   [ cat > conftest.$ac_ext <<EOF
752 #line __oline__ "configure"
753 #include "confdefs.h"
754
755 #include <$1>
756 EOF
757 lyx_path_header_path=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
758   grep $1  2>/dev/null | \
759   sed -e 's/.*\(".*$1"\).*/\1/' -e "1q"`
760 eval "lyx_cv_path2_${ac_safe}=\$lyx_path_header_path"
761 rm -f conftest*])
762   AC_DEFINE_UNQUOTED($ac_tr_safe, $lyx_path_header_path, [dummy])])
763 ])
764 ### end of LYX_PATH_HEADER
765
766 ## Check what kind of packaging should be used at install time.
767 ## The default is autodetected.
768 AC_DEFUN([LYX_USE_PACKAGING],
769 [AC_MSG_CHECKING([what packaging should be used])
770 AC_ARG_WITH(packaging,
771   [AS_HELP_STRING([--with-packaging=STR], [set packaging for installation among:
772                             posix, windows, macosx, haiku (default is autodetected)])],
773   [lyx_use_packaging="$withval"], [
774   case $host in
775     *-apple-darwin*) lyx_use_packaging=macosx ;;
776     *-pc-mingw*) lyx_use_packaging=windows ;;
777     *-mingw32*) lyx_use_packaging=windows ;;
778     *haiku*) lyx_use_packaging=haiku ;;
779     *) lyx_use_packaging=posix ;;
780   esac])
781 AC_MSG_RESULT($lyx_use_packaging)
782 lyx_install_posix=false
783 lyx_install_macosx=false
784 lyx_install_cygwin=false
785 lyx_install_windows=false
786 case $lyx_use_packaging in
787    macosx) AC_DEFINE(USE_MACOSX_PACKAGING, 1, [Define to 1 if LyX should use a MacOS X application bundle file layout])
788            PACKAGE=LyX${version_suffix}
789            default_prefix="/Applications/${PACKAGE}.app"
790            AC_SUBST(osx_bundle_program_name,"${program_base_name}")
791            bindir='${prefix}/Contents/MacOS'
792            libdir='${prefix}/Contents/Resources'
793            datarootdir='${prefix}/Contents/Resources'
794            pkgdatadir='${datadir}'
795            mandir='${datadir}/man'
796            lyx_install_macosx=true ;;
797   windows) AC_DEFINE(USE_WINDOWS_PACKAGING, 1, [Define to 1 if LyX should use a Windows-style file layout])
798            PACKAGE=LyX${version_suffix}
799            default_prefix="C:/Program Files/${PACKAGE}"
800            bindir='${prefix}/bin'
801            libdir='${prefix}/Resources'
802            datarootdir='${prefix}/Resources'
803            pkgdatadir='${datadir}'
804            mandir='${prefix}/Resources/man'
805            lyx_install_windows=true ;;
806     posix) AC_DEFINE(USE_POSIX_PACKAGING, 1, [Define to 1 if LyX should use a POSIX-style file layout])
807            PACKAGE=lyx${version_suffix}
808            program_suffix=$version_suffix
809            pkgdatadir='${datadir}/${PACKAGE}'
810            default_prefix=$ac_default_prefix
811            case ${host} in
812              *cygwin*) lyx_install_cygwin=true ;;
813              *apple-darwin*) lyx_install_macosx=true ;;
814            esac
815            lyx_install_posix=true ;;
816         haiku) AC_DEFINE(USE_HAIKU_PACKAGING, 1, [Define to 1 if LyX should use a Haiku-style file layout])
817            PACKAGE=lyx${version_suffix}
818            program_suffix=$version_suffix
819            pkgdatadir='${datadir}/${PACKAGE}'
820            default_prefix=$ac_default_prefix
821            lyx_install_posix=true ;;
822     *) AC_MSG_ERROR([unknown packaging type $lyx_use_packaging.]) ;;
823 esac
824 AM_CONDITIONAL(INSTALL_MACOSX, $lyx_install_macosx)
825 AM_CONDITIONAL(INSTALL_WINDOWS, $lyx_install_windows)
826 AM_CONDITIONAL(INSTALL_CYGWIN, $lyx_install_cygwin)
827 AM_CONDITIONAL(INSTALL_POSIX, $lyx_install_posix)
828 AC_SUBST(pkgdatadir)
829 AC_SUBST(program_suffix)
830 ])
831
832
833 ## ------------------------------------------------------------------------
834 ## Check whether mkdir() is mkdir or _mkdir, and whether it takes
835 ## one or two arguments.
836 ##
837 ## http://ac-archive.sourceforge.net/C_Support/ac_func_mkdir.html
838 ## ------------------------------------------------------------------------
839 ##
840 AC_DEFUN([AC_FUNC_MKDIR],
841 [AC_CHECK_FUNCS([mkdir _mkdir])
842 AC_CACHE_CHECK([whether mkdir takes one argument],
843                [ac_cv_mkdir_takes_one_arg],
844 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
845 #include <sys/stat.h>
846 #if HAVE_UNISTD_H
847 #  include <unistd.h>
848 #endif
849 ]], [[mkdir (".");]])],[ac_cv_mkdir_takes_one_arg=yes],[ac_cv_mkdir_takes_one_arg=no])])
850 if test x"$ac_cv_mkdir_takes_one_arg" = xyes; then
851   AC_DEFINE([MKDIR_TAKES_ONE_ARG], 1,
852             [Define if mkdir takes only one argument.])
853 fi
854 ])
855
856
857 dnl Set VAR to the canonically resolved absolute equivalent of PATHNAME,
858 dnl (which may be a relative path, and need not refer to any existing
859 dnl entity).
860
861 dnl On Win32-MSYS build hosts, the returned path is resolved to its true
862 dnl native Win32 path name, (but with slashes, not backslashes).
863
864 dnl On any other system, it is simply the result which would be obtained
865 dnl if PATHNAME represented an existing directory, and the pwd command was
866 dnl executed in that directory.
867 AC_DEFUN([MSYS_AC_CANONICAL_PATH],
868 [ac_dir="$2"
869  ( exec 2>/dev/null; cd / && pwd -W ) | grep ':' >/dev/null &&
870     ac_pwd_w="pwd -W" || ac_pwd_w=pwd
871  until ac_val=`exec 2>/dev/null; cd "$ac_dir" && $ac_pwd_w`
872  do
873    ac_dir=`AS_DIRNAME(["$ac_dir"])`
874  done
875  ac_dir=`echo "$ac_dir" | sed 's?^[[./]]*??'`
876  ac_val=`echo "$ac_val" | sed 's?/*$[]??'`
877  $1=`echo "$2" | sed "s?^[[./]]*$ac_dir/*?$ac_val/?"'
878    s?/*$[]??'`
879 ])
880
881 dnl this is used by the macro blow to general a proper config.h.in entry
882 m4_define([LYX_AH_CHECK_DECL],
883 [AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_$1),
884   [Define if you have the prototype for function `$1'])])dnl`
885
886 dnl Check things are declared in headers to avoid errors or warnings.
887 dnl Called like LYX_CHECK_DECL(function, header1 header2...)
888 dnl Defines HAVE_DECL_{FUNCTION}
889 AC_DEFUN([LYX_CHECK_DECL],
890 [LYX_AH_CHECK_DECL($1)
891 for ac_header in $2
892 do
893   AC_MSG_CHECKING([if $1 is declared by header $ac_header])
894   AC_EGREP_HEADER($1, $ac_header,
895       [AC_MSG_RESULT(yes)
896        AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DECL_$1))
897        break],
898       [AC_MSG_RESULT(no)])
899 done])
900
901 dnl this is used by the macro below to generate a proper config.h.in entry
902 m4_define([LYX_AH_CHECK_DEF],
903 [AH_TEMPLATE(AS_TR_CPP(HAVE_DEF_$1),
904   [Define to 1 if `$1' is defined in `$2'])])dnl'
905
906 dnl Check whether name is defined in header by using it in codesnippet.
907 dnl Called like LYX_CHECK_DEF(name, header, codesnippet)
908 dnl Defines HAVE_DEF_{NAME}
909 AC_DEFUN([LYX_CHECK_DEF],
910 [LYX_AH_CHECK_DEF($1, $2)
911  AC_MSG_CHECKING([whether $1 is defined by header $2])
912  save_CPPFLAGS=$CPPFLAGS
913  CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
914  save_CXXFLAGS=$CXXFLAGS
915  CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
916  AC_LANG_PUSH(C++)
917  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <$2>]], [[$3]])],[lyx_have_def_name=yes],[lyx_have_def_name=no])
918  AC_LANG_POP(C++)
919  CXXFLAGS=$save_CXXFLAGS
920  CPPFLAGS=$save_CPPFLAGS
921  AC_MSG_RESULT($lyx_have_def_name)
922  if test "x$lyx_have_def_name" = xyes; then
923    AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DEF_$1))
924  fi
925 ])
926
927 dnl Extract the single digits from PACKAGE_VERSION and make them available.
928 dnl Defines LYX_MAJOR_VERSION, LYX_MINOR_VERSION, LYX_RELEASE_LEVEL,
929 dnl LYX_RELEASE_PATCH (possibly equal to 0), LYX_DIR_VER, and LYX_USERDIR_VER.
930 AC_DEFUN([LYX_SET_VERSION_INFO],
931 [lyx_major=`echo $PACKAGE_VERSION | sed -e 's/[[.]].*//'`
932  lyx_patch=`echo $PACKAGE_VERSION | sed -e "s/^$lyx_major//" -e 's/^.//'`
933  lyx_minor=`echo $lyx_patch | sed -e 's/[[.]].*//'`
934  lyx_patch=`echo $lyx_patch | sed -e "s/^$lyx_minor//" -e 's/^.//'`
935  lyx_release=`echo $lyx_patch | sed -e 's/[[^0-9]].*//'`
936  lyx_patch=`echo $lyx_patch | sed -e "s/^$lyx_release//" -e 's/^[[.]]//' -e 's/[[^0-9]].*//'`
937  test "x$lyx_patch" = "x" && lyx_patch=0
938  lyx_dir_ver=LYX_DIR_${lyx_major}${lyx_minor}x
939  lyx_userdir_ver=LYX_USERDIR_${lyx_major}${lyx_minor}x
940  AC_SUBST(LYX_MAJOR_VERSION,$lyx_major)
941  AC_SUBST(LYX_MINOR_VERSION,$lyx_minor)
942  AC_SUBST(LYX_RELEASE_LEVEL,$lyx_release)
943  AC_SUBST(LYX_RELEASE_PATCH,$lyx_patch)
944  AC_SUBST(LYX_DIR_VER,"$lyx_dir_ver")
945  AC_SUBST(LYX_USERDIR_VER,"$lyx_userdir_ver")
946 ])
947