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)
7 dnl Usage LYX_CHECK_VERSION Displays version of LyX being built and
8 dnl sets variables "lyx_devel_version" and "lyx_prerelease"
9 AC_DEFUN(LYX_CHECK_VERSION,[
11 echo "configuring LyX version $VERSION"
12 if echo "$VERSION" | grep 'cvs' >/dev/null ; then
14 echo "WARNING: This is a development version. Expect bugs."
18 if echo "$VERSION" | grep 'pre' > /dev/null ; then
20 echo "WARNING: This is a prerelease. Be careful and backup your documents."
25 AC_SUBST(lyx_devel_version)
26 if test $lyx_devel_version = yes ; then
27 AC_DEFINE(DEVEL_VERSION, 1, Define if you are building a development version of LyX)
31 dnl Define the option to set a LyX version on installed executables and directories
34 AC_DEFUN(LYX_VERSION_SUFFIX,[
35 AC_MSG_CHECKING([for install target ... ])
36 AC_ARG_WITH(version-suffix,
37 [ --with-version-suffix[=<version>] install lyx files as lyx<version>],
38 [if test "x$withval" = "xyes";
41 ac_configure_args=`echo $ac_configure_args | sed "s,--with-version-suffix,--with-version-suffix=$withval,"`
44 program_suffix=$withval],
46 AC_MSG_RESULT([$lyxname])
49 dnl Usage: LYX_ERROR(message) Displays the warning "message" and sets the
50 dnl flag lyx_error to yes.
52 lyx_error_txt="$lyx_error_txt
58 dnl Usage: LYX_WARNING(message) Displays the warning "message" and sets the
59 dnl flag lyx_warning to yes.
60 AC_DEFUN(LYX_WARNING,[
61 lyx_warning_txt="$lyx_warning_txt
67 dnl Usage: LYX_LIB_ERROR(file,library) Displays an error message indication
68 dnl that 'file' cannot be found because 'lib' may be uncorrectly installed.
69 AC_DEFUN(LYX_LIB_ERROR,[
70 LYX_ERROR([Cannot find $1. Please check that the $2 library
71 is correctly installed on your system.])])
74 dnl Usage: LYX_CHECK_ERRORS Displays a warning message if a LYX_ERROR
75 dnl has occured previously.
76 AC_DEFUN(LYX_CHECK_ERRORS,[
77 if test x$lyx_error = xyes; then
79 **** The following problems have been detected by configure.
80 **** Please check the messages below before running 'make'.
81 **** (see the section 'Problems' in the INSTALL file)
87 if test x$lyx_warning = xyes; then
89 === The following minor problems have been detected by configure.
90 === Please check the messages below before running 'make'.
91 === (see the section 'Problems' in the INSTALL file)
96 Configuration of LyX was successful.
97 Type 'make' to compile the program,
98 and then 'make install' to install it.
103 dnl LYX_SEARCH_PROG(VARIABLE-NAME,PROGRAMS-LIST,ACTION-IF-FOUND)
105 define(LYX_SEARCH_PROG,[dnl
106 for ac_prog in $2 ; do
107 # Extract the first word of "$ac_prog", so it can be a program name with args.
108 set dummy $ac_prog ; ac_word=$[2]
109 if test -z "[$]$1"; then
110 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
111 for ac_dir in $PATH; do
112 test -z "$ac_dir" && ac_dir=.
113 if test -f [$ac_dir/$ac_word]; then
121 if test -n "[$]$1"; then
127 test -n "[$]$1" && break
132 AC_DEFUN([LYX_PROG_CXX_WORKS],
134 cat >conftest.C <<EOF
136 // we require the mutable keyword
139 // we require namespace support
147 $CXX -c $CXXFLAGS $CPPFLAGS conftest.C >&5 || CXX=
148 rm -f conftest.C conftest.o conftest.obj || true
152 AC_DEFUN(LYX_PROG_CXX,
153 [AC_MSG_CHECKING([for a good enough C++ compiler])
154 LYX_SEARCH_PROG(CXX, $CXX $CCC g++ gcc c++ CC cxx xlC cc++, [LYX_PROG_CXX_WORKS])
156 if test -z "$CXX" ; then
157 AC_MSG_ERROR([Unable to find a good enough C++ compiler])
163 ### We might want to get or shut warnings.
164 AC_ARG_ENABLE(warnings,
165 [ --enable-warnings tell the compiler to display more warnings],,
166 [ if test $lyx_devel_version = yes -o $lyx_prerelease = yes && test $ac_cv_prog_gxx = yes ; then
171 if test x$enable_warnings = xyes ; then
172 lyx_flags="$lyx_flags warnings"
173 AC_DEFINE(WITH_WARNINGS, 1,
174 [Define this if you want to see the warning directives put here and
175 there by the developpers to get attention])
178 ### We might want to disable debug
180 [ --enable-debug enable debug information],,
181 [ if test $lyx_devel_version = yes -o $lyx_prerelease = yes && test $ac_cv_prog_gxx = yes ; then
187 ### set up optimization
188 AC_ARG_ENABLE(optimization,
189 [ --enable-optimization[=value] enable compiler optimisation],,
190 enable_optimization=yes;)
191 case $enable_optimization in
194 *) lyx_opt=${enable_optimization};;
197 # set the debug flags correctly.
198 if test x$GXX = xyes; then
199 dnl Useful for global version info
200 gxx_version=`${CXX} -dumpversion`
201 CXX_VERSION="($gxx_version)"
203 if test "$ac_test_CXXFLAGS" = set; then
204 CXXFLAGS="$ac_save_CXXFLAGS"
207 2.95.1) CXXFLAGS="$lyx_opt -fpermissive -ftemplate-depth-30";;
208 2.95.*) CXXFLAGS="$lyx_opt -Wno-non-template-friend -ftemplate-depth-30";;
209 2.96*) CXXFLAGS="$lyx_opt -fno-exceptions -ftemplate-depth-30 -Wno-non-template-friend";;
210 3.0*) CXXFLAGS="$lyx_opt";;
211 3.1*) CXXFLAGS="$lyx_opt -finline-limit=500 -fno-exceptions";;
212 3.2*) CXXFLAGS="$lyx_opt -fno-exceptions";;
213 *) CXXFLAGS="$lyx_opt";;
215 if test x$enable_debug = xyes ; then
216 CXXFLAGS="-g $CXXFLAGS"
219 if test x$enable_warnings = xyes ; then
221 2.95.*) CXXFLAGS="$CXXFLAGS -W -Wall";;
222 2.96*) CXXFLAGS="$CXXFLAGS -W -Wall";;
223 3.1*) CXXFLAGS="$CXXFLAGS -W -Wall";;
224 *) CXXFLAGS="$CXXFLAGS -W -Wall";;
226 if test $lyx_devel_version = yes ; then
230 *) CXXFLAGS="$CXXFLAGS -Winline";;
237 dnl NOT USED CURRENTLY*************************************
238 dnl Usage: LYX_CXX_RTTI : checks whether the C++ compiler
240 AC_DEFUN(LYX_CXX_RTTI,[
241 ### Check whether the compiler supports runtime type information
242 AC_CACHE_CHECK(whether the C++ compiler supports RTTI,lyx_cv_rtti,
246 virtual int tag() { return 0; }
248 class derived1 : public rtti {
250 int tag() { return 1; }
252 class derived2 : public rtti {
254 int tag() { return 2; }
257 derived1 * foo1 = new derived1();
258 derived2 * foo2 = new derived2();
260 derived1 * bar1 = dynamic_cast<derived1 *>(bar);
264 bar1 = dynamic_cast<derived1 *>(bar);
269 ],lyx_cv_rtti=yes,lyx_cv_rtti=no,lyx_cv_rtti=no)
271 if test x$lyx_cv_rtti = xyes ; then
272 AC_DEFINE(HAVE_RTTI, 1,
273 [Define to 1 if your compiler supports runtime type information])
277 dnl Usage: LYX_CXX_EXPLICIT : checks whether the C++ compiler
278 dnl understands the "explicit" directive.
279 AC_DEFUN(LYX_CXX_EXPLICIT,[
280 ### Check whether the compiler understands the keyword `explicit'
281 AC_CACHE_CHECK(whether the C++ compiler understands explicit,lyx_cv_explicit,
286 };],,lyx_cv_explicit=yes,lyx_cv_explicit=no)
288 if test $lyx_cv_explicit = no ; then
289 AC_DEFINE(explicit,[ ],
290 [Define to nothing if your compiler does not understand the
291 'explicit' directive])
295 dnl NOT USED CURRENTLY*************************************
296 dnl Usage: LYX_CXX_STL_STACK : checks whether the C++ compiler
297 dnl has a working stl stack template
298 AC_DEFUN(LYX_CXX_STL_STACK,[
299 AC_CACHE_CHECK(for broken STL stack template,lyx_cv_broken_stack,
306 ],lyx_cv_broken_stack=no,lyx_cv_broken_stack=yes)
308 if test $lyx_cv_broken_stack = yes ; then
309 AC_DEFINE(BROKEN_STL_STACK, 1,
310 [Define if you have the STL from libg++ 2.7.x, where stack<> is not defined
315 dnl Usage: LYX_STD_COUNT : checks wherer the C++ library have a conforming
316 dnl count template, if not the old HP version is assumed.
317 AC_DEFUN(LYX_STD_COUNT,[
318 AC_CACHE_CHECK(for conforming std::count,lyx_cv_std_count,
322 int countChar(char * b, char * e, char const c)
324 return count(b, e, c);
328 int i = countChar(a, a + 5, 'l');
329 ],lyx_cv_std_count=yes,lyx_cv_std_count=no)
331 if test $lyx_cv_std_count = yes ; then
332 AC_DEFINE(HAVE_STD_COUNT, 1,
333 [Define if you have a conforming std::count template, otherwise HP version of count template is assumed.])
337 dnl Usage: LYX_CXX_STL_MODERN_STREAMS : checks whether the C++ compiler
338 dnl supports modern STL streams
339 AC_DEFUN(LYX_CXX_STL_MODERN_STREAMS,[
340 AC_CACHE_CHECK(for modern STL streams,lyx_cv_modern_streams,
344 std::streambuf * test = std::cerr.rdbuf();
346 ],lyx_cv_modern_streams=yes,lyx_cv_modern_streams=no)
348 if test $lyx_cv_modern_streams = yes ; then
349 AC_DEFINE(MODERN_STL_STREAMS, 1,
350 [Define if you have modern standard-compliant STL streams])
354 dnl Usage: LYX_CXX_STL_STRING : checks whether the C++ compiler
355 dnl has a std::string that is usable for LyX. LyX does not require this
356 dnl std::string to be standard.
357 AC_DEFUN(LYX_CXX_STL_STRING,[
358 AC_REQUIRE([AC_PROG_CXX])
359 AC_MSG_CHECKING(whether the included std::string should be used)
360 AC_ARG_WITH(included-string,
361 [ --with-included-string use LyX string class instead of STL string],
362 [lyx_cv_with_included_string=$withval
363 AC_MSG_RESULT([$with_included_string])],
364 [AC_CACHE_CHECK([],lyx_cv_with_included_string,
369 // LyX has reduced its requirements on the basic_string
370 // implementation so that the basic_string supplied
371 // with gcc is usable. In particular this means that
372 // lyx does not use std::string::clear and not the
373 // strncmp version of std::string::compare. This is mainly
374 // done so that LyX can use precompiled C++ libraries that
375 // already uses the systems basic_string, e.g. gtk--
376 string a("hello there");
380 //int t = a.compare(a.length() - 1, 1, s);
383 lyx_cv_with_included_string=no
385 lyx_cv_with_included_string=yes
389 if test x$lyx_cv_with_included_string = xyes ; then
390 AC_DEFINE(USE_INCLUDED_STRING, 1,
391 [Define to use the lyxstring class bundled with LyX.])
392 lyx_flags="$lyx_flags included-string"
394 AM_CONDITIONAL(USE_LYXSTRING, test x$lyx_cv_with_included_string = xyes)
395 dnl AC_MSG_RESULT([$with_included_string])
399 dnl Usage: LYX_CXX_GOOD_STD_STRING : checks whether the C++ compiler
400 dnl has a std::string that is close to the standard. So close that
401 dnl methods not found in "unstandard" std::strings are present here.
402 AC_DEFUN(LYX_CXX_GOOD_STD_STRING,[
403 AC_REQUIRE([AC_PROG_CXX])
404 AC_CACHE_CHECK([whether the systems std::string is really good],
405 [lyx_cv_std_string_good],
410 // From a std::string that is supposed to be close to the
411 // standard we require at least three things:
412 // - clear() and erase()
413 // - the strncmp of compare()
415 string a("hello there");
419 int t = a.compare(a.length() - 1, 1, s);
423 lyx_cv_std_string_good=yes
425 lyx_cv_std_string_good=no
429 if test x$lyx_cv_std_string_good = xyes ; then
430 AC_DEFINE(STD_STRING_IS_GOOD, 1,
431 [Define if the systems std::string is really good.])
436 dnl NOT USED CURRENTLY*************************************
438 AC_DEFUN(LYX_CXX_PARTIAL, [
439 AC_REQUIRE([AC_PROG_CXX])
440 AC_CACHE_CHECK([if C++ compiler supports partial specialization],
441 [lyx_cv_cxx_partial_specialization],
444 template<class T, class K>
448 template<class T> class k<void,T> { };
453 lyx_cv_cxx_partial_specialization=yes
455 lyx_cv_cxx_partial_specialization=no
458 if test x$lyx_cv_cxx_partial_specialization = xyes ; then
459 AC_DEFINE(HAVE_PARTIAL_SPECIALIZATION, 1,
460 [Defined if your compiler supports partial specialization.])
465 dnl Usage: LYX_CXX_CHEADERS : checks whether the C++ compiler
466 dnl provides wrappers for C headers and use our alternate version otherwise.
467 AC_DEFUN(LYX_CXX_CHEADERS,[
468 AC_CACHE_CHECK(for C headers wrappers,lyx_cv_cxx_cheaders,
478 #include <ctime>],[lyx_cv_cxx_cheaders=yes],[lyx_cv_cxx_cheaders=no])])
479 if test $lyx_cv_cxx_cheaders = no ; then
480 LYX_ADD_INC_DIR(lyx_cppflags,\$(top_srcdir)/src/cheaders)
483 dnl Usage: LYX_CXX_GLOBAL_CSTD: checks whether C library functions
484 dnl are already in the global namespace
485 AC_DEFUN(LYX_CXX_GLOBAL_CSTD,[
486 AC_CACHE_CHECK(whether C library functions are already in the global namespace,
487 lyx_cv_cxx_global_cstd,
493 ],[lyx_cv_cxx_global_cstd=no],[lyx_cv_cxx_global_cstd=yes])])
494 if test x$lyx_cv_cxx_global_cstd = xyes; then
495 AC_DEFINE(CXX_GLOBAL_CSTD,1,
496 [Define if your C++ compiler puts C library functions in the global namespace])
500 dnl Usage LYX_PATH_XPM: Checks for xpm library and header
501 AC_DEFUN(LYX_PATH_XPM,[
502 ### Check for Xpm library
503 AC_CHECK_LIB(Xpm, XpmCreateBufferFromImage, XPM_LIB="-lXpm",
504 [LYX_LIB_ERROR(libXpm,Xpm)])
506 ### Check for Xpm headers
507 lyx_cv_xpm_h_location="<xpm.h>"
508 AC_CHECK_HEADER(X11/xpm.h,[
509 ac_cv_header_xpm_h=yes
510 lyx_cv_xpm_h_location="<X11/xpm.h>"],[
511 AC_CHECK_HEADER(xpm.h,[],[
512 LYX_LIB_ERROR(xpm.h,Xpm)])])
513 AC_DEFINE_UNQUOTED(XPM_H_LOCATION,$lyx_cv_xpm_h_location,
514 [define this to the location of xpm.h to be used with #include, e.g. <xpm.h>])
516 ### Test for the header version
517 if test $ac_cv_header_xpm_h = yes; then
518 AC_CACHE_CHECK([xpm header version],lyx_cv_xpmversion,
519 [ cat > conftest.$ac_ext <<EOF
520 #line __oline__ "configure"
521 #include "confdefs.h"
523 #include XPM_H_LOCATION
524 "%%%"lyx_cv_xpmv=XpmVersion;lyx_cv_xpmr=XpmRevision"%%%"
526 eval `(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
527 grep '^"%%%"' 2>/dev/null | \
528 sed -e 's/^"%%%"\(.*\)"%%%"/\1/' -e 's/ //g'`
529 case "$lyx_cv_xpmr" in
531 [0-9]) lyxxpmr_alpha=`echo $lyx_cv_xpmr |tr 123456789 abcdefghi`
532 lyxxpmv_alpha=" (aka 3.$lyx_cv_xpmv$lyxxpmr_alpha)";;
536 lyx_cv_xpmversion="$lyx_cv_xpmv.$lyx_cv_xpmr$lyxxpmv_alpha"
538 XPM_VERSION=${lyx_cv_xpmversion}
539 case "$lyx_cv_xpmr" in
541 [789]|[0-9][0-9]*) ;;
543 *) LYX_WARNING([Version $lyx_cv_xpmversion of the Xpm library is a bit old.
544 If you experience strange crashes with LyX, try to upgrade
545 to at least version 4.7 (aka 3.4g).
546 If you have installed a newer version of the library, check whether you
547 have an old xpm.h header file in your include path.]);;
552 dnl Usage: LYX_FUNC_PUTENV_ARGTYPE
553 dnl Checks whether putenv() takes 'char const *' or 'char *' as
554 dnl argument. This is needed because Solaris 7 (wrongly?) uses 'char *',
555 dnl while everybody else uses the former...
556 AC_DEFUN(LYX_FUNC_PUTENV_ARGTYPE,
557 [AC_MSG_CHECKING([type of argument for putenv()])
558 AC_CACHE_VAL(lyx_cv_func_putenv_arg,dnl
560 [#include <cstdlib>],
561 [char const * foo = "bar";
563 [lyx_cv_func_putenv_arg='char const *'],[lyx_cv_func_putenv_arg='char *'])])
564 AC_MSG_RESULT($lyx_cv_func_putenv_arg)
565 AC_DEFINE_UNQUOTED(PUTENV_TYPE_ARG,$lyx_cv_func_putenv_arg,dnl
566 [Define to the type of the argument of putenv(). Needed on Solaris 7.])])
569 dnl Usage: LYX_WITH_DIR(dir-name,desc,dir-var-name,default-value,
570 dnl [default-yes-value])
571 dnl Adds a --with-'dir-name' option (described by 'desc') and puts the
572 dnl resulting directory name in 'dir-var-name'.
573 AC_DEFUN(LYX_WITH_DIR,[
574 AC_ARG_WITH($1,[ --with-$1 specify $2])
575 AC_MSG_CHECKING([for $2])
576 if test -z "$with_$3"; then
577 AC_CACHE_VAL(lyx_cv_$3, lyx_cv_$3=$4)
579 test "x$with_$3" = xyes && with_$3=$5
582 AC_MSG_RESULT($lyx_cv_$3)])
585 dnl Usage: LYX_LOOP_DIR(value,action)
586 dnl Executes action for values of variable `dir' in `values'. `values' can
587 dnl use ":" as a separator.
588 AC_DEFUN(LYX_LOOP_DIR,[
589 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
590 for dir in `eval "echo $1"`; do
591 if test ! "$dir" = NONE; then
592 test ! -d "$dir" && AC_MSG_ERROR([\"$dir\" is not a directory])
600 dnl Usage: LYX_ADD_LIB_DIR(var-name,dir) Adds a -L directive to variable
602 AC_DEFUN(LYX_ADD_LIB_DIR,[
604 if test "`(uname) 2>/dev/null`" = SunOS &&
605 uname -r | grep '^5' >/dev/null; then
606 if test $ac_cv_prog_gxx = yes ; then
607 $1="${$1} -Wl[,]-R$2"
614 dnl Usage: LYX_ADD_INC_DIR(var-name,dir) Adds a -I directive to variable
616 AC_DEFUN(LYX_ADD_INC_DIR,[$1="${$1} -I$2 "])
618 ### Check for a headers existence and location iff it exists
619 ## This is supposed to be a generalised version of LYX_STL_STRING_FWD
620 ## It almost works. I've tried a few variations but they give errors
621 ## of one sort or other: bad substitution or file not found etc. The
622 ## actual header _is_ found though and the cache variable is set however
623 ## the reported setting (on screen) is equal to $ac_safe for some unknown
625 ## Additionally, autoheader can't figure out what to use as the name in
626 ## the config.h.in file so we need to write our own entries there -- one for
627 ## each header in the form PATH_HEADER_NAME_H
629 AC_DEFUN(LYX_PATH_HEADER,
630 [ AC_CHECK_HEADER($1,[
631 ac_tr_safe=PATH_`echo $ac_safe | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
632 ### the only remaining problem is getting the second parameter to this
633 ### AC_CACHE_CACHE to print correctly. Currently it just results in value
634 ### of $ac_safe being printed.
635 AC_CACHE_CHECK([path to $1],[lyx_cv_path2_$ac_safe],
636 [ cat > conftest.$ac_ext <<EOF
637 #line __oline__ "configure"
638 #include "confdefs.h"
642 lyx_path_header_path=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
643 grep $1 2>/dev/null | \
644 sed -e 's/.*\(".*$1"\).*/\1/' -e "1q"`
645 eval "lyx_cv_path2_${ac_safe}=\$lyx_path_header_path"
647 AC_DEFINE_UNQUOTED($ac_tr_safe, $lyx_path_header_path, [dummy])])
649 ### end of LYX_PATH_HEADER
651 ### Check which frontend we want to use. The default is XForms
653 AC_DEFUN(LYX_USE_FRONTEND,
654 [AC_MSG_CHECKING([what frontend should be used as main GUI])
655 AC_ARG_WITH(frontend,
656 [ --with-frontend=THIS Use THIS frontend as main GUI:
657 Possible values: xforms, qt],
658 [lyx_use_frontend="$withval"], [lyx_use_frontend="xforms"])
659 AC_MSG_RESULT($lyx_use_frontend)
661 AC_SUBST(FRONTEND_GUILIB)
662 AC_SUBST(FRONTEND_LDFLAGS)
663 AC_SUBST(FRONTEND_INCLUDES)
664 AC_SUBST(FRONTEND_LIBS)
669 ## ------------------------------------------------------------------------
670 ## Find a file (or one of more files in a list of dirs)
671 ## ------------------------------------------------------------------------
673 AC_DEFUN(AC_FIND_FILE,
680 if test -r "$i/$j"; then
688 dnl just a wrapper to clean up configure.in
689 AC_DEFUN(LYX_PROG_LIBTOOL,
691 AC_REQUIRE([AC_ENABLE_SHARED])
692 AC_REQUIRE([AC_ENABLE_STATIC])
693 dnl libtool is only for C, so I must force him
694 dnl to find the correct flags for C++
696 ac_save_cflags="$CFLAGS"
699 AM_PROG_LIBTOOL dnl for libraries
701 CFLAGS="$ac_save_cflags"