]> git.lyx.org Git - lyx.git/blob - config/lyxinclude.m4
f0e2ad1c841fa27f111a0cf531ca6bf55235517f
[lyx.git] / 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   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"
413                AM_CXXFLAGS="$AM_CXXFLAGS  -Wno-deprecated-copy";;
414           *) AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra";;
415       esac
416     fi
417   case $gxx_version in
418       2.*|3.*|4.@<:@0-6@:>@) AC_MSG_ERROR([gcc >= 4.7 is required]);;
419   esac
420   if test x$enable_stdlib_debug = xyes ; then
421     dnl FIXME: for clang/libc++, one should define _LIBCPP_DEBUG2=0
422     dnl See http://clang-developers.42468.n3.nabble.com/libc-debug-mode-td3336742.html
423     case $gxx_version in
424       *)
425         lyx_flags="$lyx_flags stdlib-debug"
426         AC_DEFINE(_GLIBCXX_DEBUG, 1, [libstdc++ debug mode])
427         AC_DEFINE(_GLIBCXX_DEBUG_PEDANTIC, 1, [libstdc++ pedantic debug mode])
428         AC_SUBST(STDLIB_DEBUG, "-D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC")
429         ;;
430     esac
431   fi
432 fi
433
434 # Some additional flags may be needed
435 if test x$GXX = xyes; then
436     case $gxx_version in
437       clang-3.0*|clang-3.1*|clang-3.2*|clang-3.3*)
438         dnl boost contains pragmas that are annoying on older clang versions
439         AM_CPPFLAGS="-Wno-unknown-pragmas $AM_CPPFLAGS";;
440       clang*)
441         dnl the more recent versions support the deprecated-register warning,
442         dnl which  is very annoying with Qt4.x right now.
443         AM_CXXFLAGS="$AM_CXXFLAGS -Wno-deprecated-register";;
444     esac
445 fi
446 ])
447
448 dnl Usage: LYX_USE_INCLUDED_BOOST : select if the included boost should
449 dnl        be used.
450 AC_DEFUN([LYX_USE_INCLUDED_BOOST],[
451         AC_MSG_CHECKING([whether to use included boost library])
452         AC_ARG_WITH(included-boost,
453             [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])],
454             [lyx_cv_with_included_boost=$withval],
455             [lyx_cv_with_included_boost=yes])
456         AM_CONDITIONAL(USE_INCLUDED_BOOST, test x$lyx_cv_with_included_boost = xyes)
457         AC_MSG_RESULT([$lyx_cv_with_included_boost])
458         if test x$lyx_cv_with_included_boost = xyes ; then
459             lyx_included_libs="$lyx_included_libs boost"
460             BOOST_INCLUDES='-I$(top_srcdir)/3rdparty/boost'
461             if test $lyx_std_regex = yes ; then
462               BOOST_LIBS=""
463             else
464               BOOST_LIBS='$(top_builddir)/3rdparty/boost/liblyxboost.a'
465             fi
466         else
467             BOOST_INCLUDES=
468             if test $lyx_std_regex = yes ; then
469               BOOST_LIBS=""
470             else
471               AC_LANG_PUSH(C++)
472               save_LIBS=$LIBS
473
474               AC_MSG_CHECKING([for multithreaded boost libraries])
475               LIBS="$save_LIBS -lboost_regex-mt $LIBTHREAD"
476               AC_LINK_IFELSE(
477                 [AC_LANG_PROGRAM([#include <boost/regex.hpp>],
478                         [boost::regex reg;])],
479                 [AC_MSG_RESULT([yes])
480                  BOOST_MT="-mt"],
481                 [AC_MSG_RESULT([no])
482                  AC_MSG_CHECKING([for plain boost libraries])
483                  LIBS="$save_LIBS -lboost_regex"
484                  AC_LINK_IFELSE(
485                      [AC_LANG_PROGRAM([#include <boost/regex.hpp>],
486                              [boost::regex reg;])],
487                      [AC_MSG_RESULT([yes])
488                       BOOST_MT=""],
489                      [AC_MSG_RESULT([no])
490                       AC_MSG_ERROR([cannot find suitable boost library (do not use --without-included-boost)])
491                  ])
492               ])
493               LIBS=$save_LIBS
494               AC_LANG_POP(C++)
495
496               dnl In general, system boost libraries are incompatible with
497               dnl the use of stdlib-debug in libstdc++. See ticket #9736 for
498               dnl details.
499               if test $enable_stdlib_debug = "yes" ; then
500                 LYX_WARNING([Compiling LyX with stdlib-debug and system boost libraries may lead to
501    crashes. Consider using --disable-stdlib-debug or removing
502    --without-included-boost.])
503               fi
504
505               BOOST_LIBS="-lboost_regex${BOOST_MT}"
506             fi
507         fi
508         AC_SUBST(BOOST_INCLUDES)
509         AC_SUBST(BOOST_LIBS)
510 ])
511
512
513 dnl Usage: LYX_USE_INCLUDED_ICONV : select if the included iconv should
514 dnl        be used.
515 AC_DEFUN([LYX_USE_INCLUDED_ICONV],[
516   AC_MSG_CHECKING([whether to use included iconv library])
517   AC_ARG_WITH(included-iconv,
518     [AS_HELP_STRING([--with-included-iconv], [use the iconv lib supplied with LyX instead of the system one])],
519     [lyx_cv_with_included_iconv=$withval],
520     [lyx_cv_with_included_iconv=no])
521   AM_CONDITIONAL(USE_INCLUDED_ICONV, test x$lyx_cv_with_included_iconv = xyes)
522   AC_MSG_RESULT([$lyx_cv_with_included_iconv])
523   if test x$lyx_cv_with_included_iconv = xyes ; then
524   lyx_included_libs="$lyx_included_libs iconv"
525
526 dnl Some bits from libiconv configure.ac to avoid a nested configure call:
527     AC_EILSEQ
528     AC_TYPE_MBSTATE_T
529     AC_CHECK_FUNCS([getc_unlocked mbrtowc wcrtomb mbsinit setlocale])
530 dnl Ymbstate_t is used if HAVE_WCRTOMB || HAVE_MBRTOWC, see 3rdparty/libiconv/1.14/lib/loop_wchar.h.
531     if test $ac_cv_func_wcrtomb = yes || test $ac_cv_func_mbrtowc = yes; then
532       USE_MBSTATE_T=1
533     else
534       USE_MBSTATE_T=0
535     fi
536     AC_SUBST([USE_MBSTATE_T])
537     AC_CACHE_CHECK([whether <wchar.h> is standalone],
538       [gl_cv_header_wchar_h_standalone],
539       [AC_COMPILE_IFELSE(
540         [AC_LANG_PROGRAM(
541           [[#include <wchar.h>
542             wchar_t w;]],
543           [[]])],
544         [gl_cv_header_wchar_h_standalone=yes],
545         [gl_cv_header_wchar_h_standalone=no])])
546     if test $gl_cv_header_wchar_h_standalone = yes; then
547       BROKEN_WCHAR_H=0
548     else
549       BROKEN_WCHAR_H=1
550     fi
551     AC_SUBST([BROKEN_WCHAR_H])
552 dnl we want const correctness
553     AC_DEFINE_UNQUOTED([ICONV_CONST], [const],
554       [Define as const if the declaration of iconv() needs const.])
555     ICONV_CONST=const
556     AC_SUBST([ICONV_CONST])
557 dnl we build a static lib
558     DLL_VARIABLE=
559     AC_SUBST([DLL_VARIABLE])
560     ICONV_INCLUDES='-I$(top_srcdir)/3rdparty/libiconv/1.14 -I$(top_builddir)/3rdparty/libiconv'
561     ICONV_LIBS='\$(top_builddir)/3rdparty/libiconv/liblyxiconv.a'
562     ICONV_ICONV_H_IN=3rdparty/libiconv/iconv.h:3rdparty/libiconv/1.14/include/iconv.h.in
563   else
564     ICONV_INCLUDES=
565     AM_ICONV
566     if test "$am_cv_func_iconv" = no; then
567       AC_MSG_ERROR([cannot find required library iconv.])
568     else
569       ICONV_LIBS="$LIBICONV"
570     fi
571     ICONV_ICONV_H_IN=
572   fi
573   AC_SUBST(ICONV_INCLUDES)
574   AC_SUBST(ICONV_LIBS)
575   AC_SUBST(ICONV_ICONV_H_IN)
576 ])
577
578
579 dnl Usage: LYX_USE_INCLUDED_ZLIB : select if the included zlib should
580 dnl        be used.
581 AC_DEFUN([LYX_USE_INCLUDED_ZLIB],[
582   AC_MSG_CHECKING([whether to use included zlib library])
583   AC_ARG_WITH(included-zlib,
584     [AS_HELP_STRING([--with-included-zlib], [use the zlib lib supplied with LyX instead of the system one])],
585     [lyx_cv_with_included_zlib=$withval],
586     [lyx_cv_with_included_zlib=no])
587   AM_CONDITIONAL(USE_INCLUDED_ZLIB, test x$lyx_cv_with_included_zlib = xyes)
588   AC_MSG_RESULT([$lyx_cv_with_included_zlib])
589   if test x$lyx_cv_with_included_zlib = xyes ; then
590     lyx_included_libs="$lyx_included_libs zlib"
591     ZLIB_INCLUDES='-I$(top_srcdir)/3rdparty/zlib/1.2.8 -I$(top_builddir)/3rdparty/zlib'
592     ZLIB_LIBS='$(top_builddir)/3rdparty/zlib/liblyxzlib.a'
593     mkdir -p 3rdparty/zlib
594 dnl include standard config.h for HAVE_UNISTD_H
595     echo "#include <../../config.h>" > 3rdparty/zlib/zconf.h
596 dnl prevent clash with system zlib that might be dragged in by other libs
597     echo "#define Z_PREFIX 1" >> 3rdparty/zlib/zconf.h
598     cat "${srcdir}/3rdparty/zlib/1.2.8/zconf.h.in" >> 3rdparty/zlib/zconf.h
599   else
600     ZLIB_INCLUDES=
601     AC_CHECK_HEADERS(zlib.h,
602       [AC_CHECK_LIB(z, gzopen, [ZLIB_LIBS="-lz"], LYX_LIB_ERROR(libz,zlib))],
603       [LYX_LIB_ERROR(zlib.h,zlib)])
604   fi
605   AC_SUBST(ZLIB_INCLUDES)
606   AC_SUBST(ZLIB_LIBS)
607 ])
608
609
610 dnl Usage: LYX_CHECK_CALLSTACK_PRINTING: define LYX_CALLSTACK_PRINTING if the
611 dnl        necessary APIs are available to print callstacks.
612 AC_DEFUN([LYX_CHECK_CALLSTACK_PRINTING],
613 [AC_ARG_ENABLE([callstack-printing],
614                [AS_HELP_STRING([--disable-callstack-printing],[do not print a callstack when crashing])],
615                lyx_cv_callstack_printing=$enableval, lyx_cv_callstack_printing=yes)
616
617 if test x"$lyx_cv_callstack_printing" = xyes; then
618   AC_CACHE_CHECK([whether printing callstack is possible],
619                  [lyx_cv_callstack_printing],
620   [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
621   #include <execinfo.h>
622   #include <cxxabi.h>
623   ]], [[
624           void* array[200];
625           size_t size = backtrace(array, 200);
626           backtrace_symbols(array, size);
627           int status = 0;
628           abi::__cxa_demangle("abcd", 0, 0, &status);
629   ]])],[],[lyx_cv_callstack_printing=no])])
630 fi
631 if test x"$lyx_cv_callstack_printing" = xyes; then
632   AC_DEFINE([LYX_CALLSTACK_PRINTING], 1,
633             [Define if callstack can be printed])
634   lyx_flags="$lyx_flags callback-printing"
635   AM_LDFLAGS="${AM_LDFLAGS} -rdynamic"
636 fi
637 ])
638
639
640 dnl Usage: LYX_USE_INCLUDED_MYTHES : select if the included MyThes should
641 dnl        be used.
642 AC_DEFUN([LYX_USE_INCLUDED_MYTHES],[
643   AC_ARG_WITH(included-mythes,
644     [AS_HELP_STRING([--with-included-mythes], [force to use the MyThes lib supplied with LyX])],
645     [use_included_mythes=$withval],
646     [use_included_mythes=no])
647   if test x$use_included_mythes != xyes ; then
648     AC_LANG_PUSH(C++)
649     use_included_mythes=yes
650     AC_CHECK_HEADERS([mythes.hxx mythes/mythes.hxx],
651       [mythes_h_location="<$ac_header>"
652        save_LIBS=$LIBS
653        AC_MSG_CHECKING([checking for MyThes library])
654        for ac_lib in mythes mythes-1.2 ; do
655          LIBS="-l$ac_lib $save_LIBS"
656          AC_LINK_IFELSE(
657            [AC_LANG_PROGRAM([#include <cstdio>]
658               [#include $mythes_h_location], [MyThes dummy("idx","dat")])],
659            [MYTHES_LIBS=-l$ac_lib
660             AC_MSG_RESULT([$MYTHES_LIBS])
661             use_included_mythes=no])
662        done
663        if test $use_included_mythes != no ; then
664          AC_MSG_RESULT([not found])
665        fi
666        break])
667     AC_LANG_POP(C++)
668   fi
669   if test $use_included_mythes = yes ; then
670     mythes_h_location="<mythes.hxx>"
671     MYTHES_INCLUDES='-I$(top_srcdir)/3rdparty/mythes/1.2.5/'
672     MYTHES_LIBS='$(top_builddir)/3rdparty/mythes/liblyxmythes.a'
673     lyx_included_libs="$lyx_included_libs mythes"
674   fi
675   AM_CONDITIONAL(USE_INCLUDED_MYTHES, test x$use_included_mythes = xyes)
676   AC_DEFINE_UNQUOTED(MYTHES_H_LOCATION,$mythes_h_location,[Location of mythes.hxx])
677   AC_SUBST(MYTHES_INCLUDES)
678   AC_SUBST(MYTHES_LIBS)
679   AC_MSG_CHECKING([whether to use included MyThes library])
680   AC_MSG_RESULT([$use_included_mythes])
681 ])
682
683
684 dnl Usage: LYX_WITH_DIR(dir-name,desc,dir-var-name,default-value,
685 dnl                       [default-yes-value])
686 dnl  Adds a --with-'dir-name' option (described by 'desc') and puts the
687 dnl  resulting directory name in 'dir-var-name'.
688 AC_DEFUN([LYX_WITH_DIR],[
689   AC_ARG_WITH($1,[AS_HELP_STRING([--with-$1],[specify $2])])
690   AC_MSG_CHECKING([for $2])
691   if test -z "$with_$3"; then
692      AC_CACHE_VAL(lyx_cv_$3, lyx_cv_$3=$4)
693   else
694     test "x$with_$3" = xyes && with_$3=$5
695     lyx_cv_$3="$with_$3"
696   fi
697   AC_MSG_RESULT($lyx_cv_$3)
698 ])
699
700
701 dnl Usage: LYX_LOOP_DIR(value,action)
702 dnl Executes action for values of variable `dir' in `values'. `values' can
703 dnl use ":" as a separator.
704 AC_DEFUN([LYX_LOOP_DIR],[
705 IFS="${IFS=     }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
706 for dir in `eval "echo $1"`; do
707   if test ! "$dir" = NONE; then
708     test ! -d "$dir" && AC_MSG_ERROR(['$dir' is not a directory])
709     $2
710   fi
711 done
712 IFS=$ac_save_ifs
713 ])
714
715
716 dnl Usage: LYX_ADD_LIB_DIR(var-name,dir) Adds a -L directive to variable
717 dnl var-name.
718 AC_DEFUN([LYX_ADD_LIB_DIR],[
719 $1="${$1} -L$2"
720 if test "`(uname) 2>/dev/null`" = SunOS &&
721     uname -r | grep '^5' >/dev/null; then
722   if test $GXX = yes ; then
723     $1="${$1} -Wl[,]-R$2"
724   else
725     $1="${$1} -R$2"
726   fi
727 fi])
728
729
730 dnl Usage: LYX_ADD_INC_DIR(var-name,dir) Adds a -I directive to variable
731 dnl var-name.
732 AC_DEFUN([LYX_ADD_INC_DIR],[$1="${$1} -I$2 "])
733
734 ### Check for a headers existence and location iff it exists
735 ## This is supposed to be a generalised version of LYX_STL_STRING_FWD
736 ## It almost works.  I've tried a few variations but they give errors
737 ## of one sort or other: bad substitution or file not found etc.  The
738 ## actual header _is_ found though and the cache variable is set however
739 ## the reported setting (on screen) is equal to $ac_safe for some unknown
740 ## reason.
741 ## Additionally, autoheader can't figure out what to use as the name in
742 ## the config.h.in file so we need to write our own entries there -- one for
743 ## each header in the form PATH_HEADER_NAME_H
744 ##
745 AC_DEFUN([LYX_PATH_HEADER],
746 [ AC_CHECK_HEADER($1,[
747   ac_tr_safe=PATH_`echo $ac_safe | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
748 ### the only remaining problem is getting the second parameter to this
749 ### AC_CACHE_CACHE to print correctly. Currently it just results in value
750 ### of $ac_safe being printed.
751   AC_CACHE_CHECK([path to $1],[lyx_cv_path2_$ac_safe],
752   [ cat > conftest.$ac_ext <<EOF
753 #line __oline__ "configure"
754 #include "confdefs.h"
755
756 #include <$1>
757 EOF
758 lyx_path_header_path=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
759   grep $1  2>/dev/null | \
760   sed -e 's/.*\(".*$1"\).*/\1/' -e "1q"`
761 eval "lyx_cv_path2_${ac_safe}=\$lyx_path_header_path"
762 rm -f conftest*])
763   AC_DEFINE_UNQUOTED($ac_tr_safe, $lyx_path_header_path, [dummy])])
764 ])
765 ### end of LYX_PATH_HEADER
766
767 ## Check what kind of packaging should be used at install time.
768 ## The default is autodetected.
769 AC_DEFUN([LYX_USE_PACKAGING],
770 [AC_MSG_CHECKING([what packaging should be used])
771 AC_ARG_WITH(packaging,
772   [AS_HELP_STRING([--with-packaging=STR], [set packaging for installation among:
773                             posix, windows, macosx, haiku (default is autodetected)])],
774   [lyx_use_packaging="$withval"], [
775   case $host in
776     *-apple-darwin*) lyx_use_packaging=macosx ;;
777     *-pc-mingw*) lyx_use_packaging=windows ;;
778     *-mingw32*) lyx_use_packaging=windows ;;
779     *haiku*) lyx_use_packaging=haiku ;;
780     *) lyx_use_packaging=posix ;;
781   esac])
782 AC_MSG_RESULT($lyx_use_packaging)
783 lyx_install_posix=false
784 lyx_install_macosx=false
785 lyx_install_cygwin=false
786 lyx_install_windows=false
787 case $lyx_use_packaging in
788    macosx) AC_DEFINE(USE_MACOSX_PACKAGING, 1, [Define to 1 if LyX should use a MacOS X application bundle file layout])
789            PACKAGE=LyX${version_suffix}
790            default_prefix="/Applications/${PACKAGE}.app"
791            AC_SUBST(osx_bundle_program_name,"${program_base_name}")
792            bindir='${prefix}/Contents/MacOS'
793            libdir='${prefix}/Contents/Resources'
794            datarootdir='${prefix}/Contents/Resources'
795            pkgdatadir='${datadir}'
796            mandir='${datadir}/man'
797            lyx_install_macosx=true ;;
798   windows) AC_DEFINE(USE_WINDOWS_PACKAGING, 1, [Define to 1 if LyX should use a Windows-style file layout])
799            PACKAGE=LyX${version_suffix}
800            default_prefix="C:/Program Files/${PACKAGE}"
801            bindir='${prefix}/bin'
802            libdir='${prefix}/Resources'
803            datarootdir='${prefix}/Resources'
804            pkgdatadir='${datadir}'
805            mandir='${prefix}/Resources/man'
806            lyx_install_windows=true ;;
807     posix) AC_DEFINE(USE_POSIX_PACKAGING, 1, [Define to 1 if LyX should use a POSIX-style file layout])
808            PACKAGE=lyx${version_suffix}
809            program_suffix=$version_suffix
810            pkgdatadir='${datadir}/${PACKAGE}'
811            default_prefix=$ac_default_prefix
812            case ${host} in
813              *cygwin*) lyx_install_cygwin=true ;;
814              *apple-darwin*) lyx_install_macosx=true ;;
815            esac
816            lyx_install_posix=true ;;
817         haiku) AC_DEFINE(USE_HAIKU_PACKAGING, 1, [Define to 1 if LyX should use a Haiku-style file layout])
818            PACKAGE=lyx${version_suffix}
819            program_suffix=$version_suffix
820            pkgdatadir='${datadir}/${PACKAGE}'
821            default_prefix=$ac_default_prefix
822            lyx_install_posix=true ;;
823     *) AC_MSG_ERROR([unknown packaging type $lyx_use_packaging.]) ;;
824 esac
825 AM_CONDITIONAL(INSTALL_MACOSX, $lyx_install_macosx)
826 AM_CONDITIONAL(INSTALL_WINDOWS, $lyx_install_windows)
827 AM_CONDITIONAL(INSTALL_CYGWIN, $lyx_install_cygwin)
828 AM_CONDITIONAL(INSTALL_POSIX, $lyx_install_posix)
829 AC_SUBST(pkgdatadir)
830 AC_SUBST(program_suffix)
831 ])
832
833
834 ## ------------------------------------------------------------------------
835 ## Check whether mkdir() is mkdir or _mkdir, and whether it takes
836 ## one or two arguments.
837 ##
838 ## http://ac-archive.sourceforge.net/C_Support/ac_func_mkdir.html
839 ## ------------------------------------------------------------------------
840 ##
841 AC_DEFUN([AC_FUNC_MKDIR],
842 [AC_CHECK_FUNCS([mkdir _mkdir])
843 AC_CACHE_CHECK([whether mkdir takes one argument],
844                [ac_cv_mkdir_takes_one_arg],
845 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
846 #include <sys/stat.h>
847 #if HAVE_UNISTD_H
848 #  include <unistd.h>
849 #endif
850 ]], [[mkdir (".");]])],[ac_cv_mkdir_takes_one_arg=yes],[ac_cv_mkdir_takes_one_arg=no])])
851 if test x"$ac_cv_mkdir_takes_one_arg" = xyes; then
852   AC_DEFINE([MKDIR_TAKES_ONE_ARG], 1,
853             [Define if mkdir takes only one argument.])
854 fi
855 ])
856
857
858 dnl Set VAR to the canonically resolved absolute equivalent of PATHNAME,
859 dnl (which may be a relative path, and need not refer to any existing
860 dnl entity).
861
862 dnl On Win32-MSYS build hosts, the returned path is resolved to its true
863 dnl native Win32 path name, (but with slashes, not backslashes).
864
865 dnl On any other system, it is simply the result which would be obtained
866 dnl if PATHNAME represented an existing directory, and the pwd command was
867 dnl executed in that directory.
868 AC_DEFUN([MSYS_AC_CANONICAL_PATH],
869 [ac_dir="$2"
870  ( exec 2>/dev/null; cd / && pwd -W ) | grep ':' >/dev/null &&
871     ac_pwd_w="pwd -W" || ac_pwd_w=pwd
872  until ac_val=`exec 2>/dev/null; cd "$ac_dir" && $ac_pwd_w`
873  do
874    ac_dir=`AS_DIRNAME(["$ac_dir"])`
875  done
876  ac_dir=`echo "$ac_dir" | sed 's?^[[./]]*??'`
877  ac_val=`echo "$ac_val" | sed 's?/*$[]??'`
878  $1=`echo "$2" | sed "s?^[[./]]*$ac_dir/*?$ac_val/?"'
879    s?/*$[]??'`
880 ])
881
882 dnl this is used by the macro blow to general a proper config.h.in entry
883 m4_define([LYX_AH_CHECK_DECL],
884 [AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_$1),
885   [Define if you have the prototype for function `$1'])])dnl`
886
887 dnl Check things are declared in headers to avoid errors or warnings.
888 dnl Called like LYX_CHECK_DECL(function, header1 header2...)
889 dnl Defines HAVE_DECL_{FUNCTION}
890 AC_DEFUN([LYX_CHECK_DECL],
891 [LYX_AH_CHECK_DECL($1)
892 for ac_header in $2
893 do
894   AC_MSG_CHECKING([if $1 is declared by header $ac_header])
895   AC_EGREP_HEADER($1, $ac_header,
896       [AC_MSG_RESULT(yes)
897        AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DECL_$1))
898        break],
899       [AC_MSG_RESULT(no)])
900 done])
901
902 dnl this is used by the macro below to generate a proper config.h.in entry
903 m4_define([LYX_AH_CHECK_DEF],
904 [AH_TEMPLATE(AS_TR_CPP(HAVE_DEF_$1),
905   [Define to 1 if `$1' is defined in `$2'])])dnl'
906
907 dnl Check whether name is defined in header by using it in codesnippet.
908 dnl Called like LYX_CHECK_DEF(name, header, codesnippet)
909 dnl Defines HAVE_DEF_{NAME}
910 AC_DEFUN([LYX_CHECK_DEF],
911 [LYX_AH_CHECK_DEF($1, $2)
912  AC_MSG_CHECKING([whether $1 is defined by header $2])
913  save_CPPFLAGS=$CPPFLAGS
914  CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
915  save_CXXFLAGS=$CXXFLAGS
916  CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
917  AC_LANG_PUSH(C++)
918  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <$2>]], [[$3]])],[lyx_have_def_name=yes],[lyx_have_def_name=no])
919  AC_LANG_POP(C++)
920  CXXFLAGS=$save_CXXFLAGS
921  CPPFLAGS=$save_CPPFLAGS
922  AC_MSG_RESULT($lyx_have_def_name)
923  if test "x$lyx_have_def_name" = xyes; then
924    AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DEF_$1))
925  fi
926 ])
927
928 dnl Extract the single digits from PACKAGE_VERSION and make them available.
929 dnl Defines LYX_MAJOR_VERSION, LYX_MINOR_VERSION, LYX_RELEASE_LEVEL,
930 dnl LYX_RELEASE_PATCH (possibly equal to 0), LYX_DIR_VER, and LYX_USERDIR_VER.
931 AC_DEFUN([LYX_SET_VERSION_INFO],
932 [lyx_major=`echo $PACKAGE_VERSION | sed -e 's/[[.]].*//'`
933  lyx_patch=`echo $PACKAGE_VERSION | sed -e "s/^$lyx_major//" -e 's/^.//'`
934  lyx_minor=`echo $lyx_patch | sed -e 's/[[.]].*//'`
935  lyx_patch=`echo $lyx_patch | sed -e "s/^$lyx_minor//" -e 's/^.//'`
936  lyx_release=`echo $lyx_patch | sed -e 's/[[^0-9]].*//'`
937  lyx_patch=`echo $lyx_patch | sed -e "s/^$lyx_release//" -e 's/^[[.]]//' -e 's/[[^0-9]].*//'`
938  test "x$lyx_patch" = "x" && lyx_patch=0
939  lyx_dir_ver=LYX_DIR_${lyx_major}${lyx_minor}x
940  lyx_userdir_ver=LYX_USERDIR_${lyx_major}${lyx_minor}x
941  AC_SUBST(LYX_MAJOR_VERSION,$lyx_major)
942  AC_SUBST(LYX_MINOR_VERSION,$lyx_minor)
943  AC_SUBST(LYX_RELEASE_LEVEL,$lyx_release)
944  AC_SUBST(LYX_RELEASE_PATCH,$lyx_patch)
945  AC_SUBST(LYX_DIR_VER,"$lyx_dir_ver")
946  AC_SUBST(LYX_USERDIR_VER,"$lyx_userdir_ver")
947 ])
948