1 dnl Macros used to build the Wine configure script
3 dnl Copyright 2002 Alexandre Julliard
5 dnl This library is free software; you can redistribute it and/or
6 dnl modify it under the terms of the GNU Lesser General Public
7 dnl License as published by the Free Software Foundation; either
8 dnl version 2.1 of the License, or (at your option) any later version.
10 dnl This library is distributed in the hope that it will be useful,
11 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
12 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 dnl Lesser General Public License for more details.
15 dnl You should have received a copy of the GNU Lesser General Public
16 dnl License along with this library; if not, write to the Free Software
17 dnl Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 dnl As a special exception to the GNU Lesser General Public License,
20 dnl if you distribute this file as part of a program that contains a
21 dnl configuration script generated by Autoconf, you may include it
22 dnl under the same distribution terms that you use for the rest of
25 dnl **** Get the ldd program name; used by WINE_GET_SONAME ****
27 dnl Usage: WINE_PATH_LDD
29 AC_DEFUN([WINE_PATH_LDD],[AC_PATH_PROG(LDD,ldd,true,/sbin:/usr/sbin:$PATH)])
31 dnl **** Extract the soname of a library ****
33 dnl Usage: WINE_CHECK_SONAME(library, function, [action-if-found, [action-if-not-found, [other_libraries, [pattern]]]])
35 AC_DEFUN([WINE_CHECK_SONAME],
36 [AC_REQUIRE([WINE_PATH_LDD])dnl
37 AS_VAR_PUSHDEF([ac_Lib],[ac_cv_lib_soname_$1])dnl
38 m4_pushdef([ac_lib_pattern],m4_default([$6],[lib$1]))dnl
39 AC_MSG_CHECKING([for -l$1])
41 [ac_check_soname_save_LIBS=$LIBS
43 AC_LINK_IFELSE([AC_LANG_CALL([], [$2])],
45 dll) AS_VAR_SET(ac_Lib,[`$ac_cv_path_LDD conftest.exe | grep "$1" | sed -e "s/dll.*/dll/"';2,$d'`]) ;;
46 dylib) AS_VAR_SET(ac_Lib,[`otool -L conftest$ac_exeext | grep "ac_lib_pattern\\.[[0-9A-Za-z.]]*dylib" | sed -e "s/^.*\/\(ac_lib_pattern\.[[0-9A-Za-z.]]*dylib\).*$/\1/"';2,$d'`]) ;;
47 *) AS_VAR_SET(ac_Lib,[`$ac_cv_path_LDD conftest$ac_exeext | grep "ac_lib_pattern\\.$LIBEXT" | sed -e "s/^.*\(ac_lib_pattern\.$LIBEXT[[^ ]]*\).*$/\1/"';2,$d'`]) ;;
49 LIBS=$ac_check_soname_save_LIBS])dnl
50 AS_IF([test "x]AS_VAR_GET(ac_Lib)[" = "x"],
51 [AC_MSG_RESULT([not found])
53 [AC_MSG_RESULT(AS_VAR_GET(ac_Lib))
54 AC_DEFINE_UNQUOTED(AS_TR_CPP(SONAME_LIB$1),["]AS_VAR_GET(ac_Lib)["],
55 [Define to the soname of the lib$1 library.])
57 m4_popdef([ac_lib_pattern])dnl
58 AS_VAR_POPDEF([ac_Lib])])
60 dnl **** Link C code with an assembly file ****
62 dnl Usage: WINE_TRY_ASM_LINK(asm-code,includes,function,[action-if-found,[action-if-not-found]])
64 AC_DEFUN([WINE_TRY_ASM_LINK],
65 [AC_LINK_IFELSE(AC_LANG_PROGRAM([[$2]],[[asm($1); $3]]),[$4],[$5])])
67 dnl **** Check if we can link an empty program with special CFLAGS ****
69 dnl Usage: WINE_TRY_CFLAGS(flags,[action-if-yes,[action-if-no]])
71 dnl The default action-if-yes is to append the flags to EXTRACFLAGS.
73 AC_DEFUN([WINE_TRY_CFLAGS],
74 [AS_VAR_PUSHDEF([ac_var], ac_cv_cflags_[[$1]])dnl
75 AC_CACHE_CHECK([whether the compiler supports $1], ac_var,
76 [ac_wine_try_cflags_saved=$CFLAGS
78 AC_LINK_IFELSE(AC_LANG_SOURCE([[int main(int argc, char **argv) { return 0; }]]),
79 [AS_VAR_SET(ac_var,yes)], [AS_VAR_SET(ac_var,no)])
80 CFLAGS=$ac_wine_try_cflags_saved])
81 AS_IF([test AS_VAR_GET(ac_var) = yes],
82 [m4_default([$2], [EXTRACFLAGS="$EXTRACFLAGS $1"])], [$3])dnl
83 AS_VAR_POPDEF([ac_var])])
85 dnl **** Check if we can link an empty shared lib (no main) with special CFLAGS ****
87 dnl Usage: WINE_TRY_SHLIB_FLAGS(flags,[action-if-yes,[action-if-no]])
89 AC_DEFUN([WINE_TRY_SHLIB_FLAGS],
90 [ac_wine_try_cflags_saved=$CFLAGS
92 AC_LINK_IFELSE([void myfunc() {}],[$2],[$3])
93 CFLAGS=$ac_wine_try_cflags_saved])
95 dnl **** Check whether we need to define a symbol on the compiler command line ****
97 dnl Usage: WINE_CHECK_DEFINE(name),[action-if-yes,[action-if-no]])
99 AC_DEFUN([WINE_CHECK_DEFINE],
100 [AS_VAR_PUSHDEF([ac_var],[ac_cv_cpp_def_$1])dnl
101 AC_CACHE_CHECK([whether we need to define $1],ac_var,
102 AC_EGREP_CPP(yes,[#ifndef $1
105 [AS_VAR_SET(ac_var,yes)],[AS_VAR_SET(ac_var,no)]))
106 AS_IF([test AS_VAR_GET(ac_var) = yes],
107 [CFLAGS="$CFLAGS -D$1"
108 LINTFLAGS="$LINTFLAGS -D$1"])dnl
109 AS_VAR_POPDEF([ac_var])])
111 dnl **** Check for functions with some extra libraries ****
113 dnl Usage: WINE_CHECK_LIB_FUNCS(funcs,libs,[action-if-found,[action-if-not-found]])
115 AC_DEFUN([WINE_CHECK_LIB_FUNCS],
116 [ac_wine_check_funcs_save_LIBS="$LIBS"
118 AC_CHECK_FUNCS([$1],[$3],[$4])
119 LIBS="$ac_wine_check_funcs_save_LIBS"])
121 dnl **** Check for a mingw program, trying the various mingw prefixes ****
123 dnl Usage: WINE_CHECK_MINGW_PROG(variable,prog,[value-if-not-found],[path])
125 AC_DEFUN([WINE_CHECK_MINGW_PROG],
128 ac_prefix_list="m4_foreach([ac_wine_prefix],[pc-mingw32, mingw32msvc, mingw32],
129 m4_foreach([ac_wine_cpu],[i686,i586,i486,i386],[ac_wine_cpu-ac_wine_prefix-$2 ]))" ;;
131 ac_prefix_list="m4_foreach([ac_wine_prefix],[pc-mingw32,w64-mingw32],[x86_64-ac_wine_prefix-$2 ])" ;;
135 AC_CHECK_PROGS([$1],[$ac_prefix_list],[$3],[$4])])
138 dnl **** Define helper functions for creating config.status files ****
140 dnl Usage: AC_REQUIRE([WINE_CONFIG_HELPERS])
142 AC_DEFUN([WINE_CONFIG_HELPERS],
143 [ALL_MAKEFILE_DEPENDS="
144 # Rules automatically generated by configure
149 Makefile: Makefile.in Make.rules config.status
150 @./config.status Make.tmp Makefile"
152 AC_SUBST(ALL_WINETEST_DEPENDS,["# Test binaries"])
153 AC_SUBST(ALL_TEST_BINARIES,"")
154 AC_SUBST(ALL_PROGRAM_BIN_INSTALL_DIRS,"")
156 wine_fn_append_file ()
158 AS_VAR_APPEND($[1]," \\$as_nl $[2]")
161 wine_fn_append_rule ()
163 AS_VAR_APPEND($[1],"$as_nl$[2]")
166 wine_fn_all_dir_rules ()
168 wine_fn_append_file ALL_DIRS $[1]
169 wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
170 "__clean__ .PHONY: $[1]/__clean__
171 $[1]/__clean__: $[1]/Makefile
172 @cd $[1] && \$(MAKE) clean
174 $[1]/Makefile: $[1]/Makefile.in config.status $[2]
175 @./config.status --file $[1]/Makefile && cd $[1] && \$(MAKE) depend
176 depend .PHONY: $[1]/__depend__
177 $[1]/__depend__: \$(MAKEDEP) dummy
178 @./config.status --file $[1]/Makefile && cd $[1] && \$(MAKE) depend"
181 wine_fn_config_makefile ()
185 wine_fn_all_dir_rules $ac_dir "Make.rules \$(MAKEDEP)"
187 AS_VAR_IF([$ac_enable],[no],,[wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
189 $ac_dir: $ac_dir/Makefile dummy
190 @cd $ac_dir && \$(MAKE)
192 @cd $ac_dir && \$(MAKE) install
193 install-lib:: $ac_dir
194 @cd $ac_dir && \$(MAKE) install-lib
195 install-dev:: $ac_dir
196 @cd $ac_dir && \$(MAKE) install-dev
197 uninstall:: $ac_dir/Makefile
198 @cd $ac_dir && \$(MAKE) uninstall"])
201 wine_fn_config_lib ()
205 wine_fn_all_dir_rules $ac_dir "dlls/Makeimplib.rules \$(MAKEDEP)"
206 wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
207 "all __builddeps__: $ac_dir
208 __buildcrossdeps__: $ac_dir/lib$ac_name.cross.a
209 $ac_dir $ac_dir/lib$ac_name.cross.a: $ac_dir/Makefile tools/widl tools/winebuild tools/winegcc include
211 @cd $ac_dir && \$(MAKE)
212 $ac_dir/lib$ac_name.cross.a: dummy
213 @cd $ac_dir && \$(MAKE) lib$ac_name.cross.a
214 install install-dev:: $ac_dir
215 @cd $ac_dir && \$(MAKE) install
216 uninstall:: $ac_dir/Makefile
217 @cd $ac_dir && \$(MAKE) uninstall"
220 wine_fn_config_dll ()
226 ac_file="dlls/$ac_dir/lib$ac_implib"
227 ac_deps="tools/widl tools/winebuild tools/winegcc include"
229 wine_fn_all_dir_rules dlls/$ac_dir "dlls/Makedll.rules \$(MAKEDEP)"
231 AS_VAR_IF([$ac_enable],[no],
232 dnl enable_win16 is special in that it disables import libs too
233 [test "$ac_enable" != enable_win16 || return 0],
234 [wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
235 "all .PHONY: dlls/$ac_dir
236 dlls/$ac_dir: dlls/$ac_dir/Makefile __builddeps__ dummy
237 @cd dlls/$ac_dir && \$(MAKE)
238 install:: dlls/$ac_dir/Makefile __builddeps__
239 @cd dlls/$ac_dir && \$(MAKE) install
240 install-lib:: dlls/$ac_dir/Makefile __builddeps__
241 @cd dlls/$ac_dir && \$(MAKE) install-lib
242 uninstall manpages htmlpages sgmlpages xmlpages:: dlls/$ac_dir/Makefile
243 @cd dlls/$ac_dir && \$(MAKE) \$[@]"])
245 if test -n "$ac_implibsrc"
247 wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
248 "__builddeps__: $ac_file.$IMPLIBEXT $ac_file.$STATIC_IMPLIBEXT
249 __buildcrossdeps__: $ac_file.cross.a
250 $ac_file.$IMPLIBEXT $ac_file.$STATIC_IMPLIBEXT $ac_file.cross.a: $ac_deps
251 $ac_file.def: dlls/$ac_dir/$ac_dir.spec dlls/$ac_dir/Makefile
252 @cd dlls/$ac_dir && \$(MAKE) \`basename \$[@]\`
253 $ac_file.$STATIC_IMPLIBEXT $ac_file.cross.a: dlls/$ac_dir/Makefile dummy
254 @cd dlls/$ac_dir && \$(MAKE) \`basename \$[@]\`
255 install-dev:: dlls/$ac_dir/Makefile __builddeps__
256 @cd dlls/$ac_dir && \$(MAKE) install-dev"
257 elif test -n "$ac_implib"
259 wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
260 "__builddeps__: $ac_file.$IMPLIBEXT
261 __buildcrossdeps__: $ac_file.cross.a
262 $ac_file.$IMPLIBEXT $ac_file.cross.a: dlls/$ac_dir/$ac_dir.spec dlls/$ac_dir/Makefile $ac_deps
263 @cd dlls/$ac_dir && \$(MAKE) \`basename \$[@]\`
264 install-dev:: dlls/$ac_dir/Makefile __builddeps__
265 @cd dlls/$ac_dir && \$(MAKE) install-dev"
267 if test "$ac_dir" != "$ac_implib"
269 wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
270 "__builddeps__: dlls/lib$ac_implib.$IMPLIBEXT
271 __buildcrossdeps__: dlls/lib$ac_implib.cross.a
272 dlls/lib$ac_implib.$IMPLIBEXT: $ac_file.$IMPLIBEXT
273 \$(RM) \$[@] && \$(LN_S) $ac_dir/lib$ac_implib.$IMPLIBEXT \$[@]
274 dlls/lib$ac_implib.cross.a: $ac_file.cross.a
275 \$(RM) \$[@] && \$(LN_S) $ac_dir/lib$ac_implib.cross.a \$[@]
277 \$(RM) dlls/lib$ac_implib.$IMPLIBEXT"
282 wine_fn_config_program ()
287 wine_fn_all_dir_rules programs/$ac_dir "programs/Makeprog.rules \$(MAKEDEP)"
289 AS_VAR_IF([$ac_enable],[no],,[wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
290 "all .PHONY: programs/$ac_dir
291 programs/$ac_dir: programs/$ac_dir/Makefile __builddeps__ dummy
292 @cd programs/$ac_dir && \$(MAKE)"
294 if test -n "$ac_install"
296 wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
297 "install install-lib:: programs/$ac_dir/Makefile __builddeps__
298 @cd programs/$ac_dir && \$(MAKE) install
299 uninstall:: programs/$ac_dir/Makefile
300 @cd programs/$ac_dir && \$(MAKE) uninstall"
301 test "$ac_install" != installbin || wine_fn_append_file ALL_PROGRAM_BIN_INSTALL_DIRS programs/$ac_dir
305 wine_fn_config_test ()
309 wine_fn_append_file ALL_TEST_BINARIES $ac_name.exe
310 wine_fn_append_rule ALL_WINETEST_DEPENDS \
311 "$ac_name.exe: \$(TOPOBJDIR)/$ac_dir/$ac_name.exe$DLLEXT
312 cp \$(TOPOBJDIR)/$ac_dir/$ac_name.exe$DLLEXT \$[@] && \$(STRIP) \$[@]
314 echo \"$ac_name.exe TESTRES \\\"$ac_name.exe\\\"\" >\$[@] || (\$(RM) \$[@] && false)
315 $ac_name.res: $ac_name.rc $ac_name.exe"
316 wine_fn_all_dir_rules $ac_dir "Maketest.rules \$(MAKEDEP)"
318 AS_VAR_IF([enable_tests],[no],,[wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
319 "all programs/winetest .PHONY: $ac_dir
320 $ac_dir: $ac_dir/Makefile __builddeps__ dummy
321 @cd $ac_dir && \$(MAKE)
322 crosstest .PHONY: $ac_dir/__crosstest__
323 $ac_dir/__crosstest__: $ac_dir/Makefile __buildcrossdeps__ dummy
324 @cd $ac_dir && \$(MAKE) crosstest
325 test .PHONY: $ac_dir/__test__
326 $ac_dir/__test__: dummy
327 @cd $ac_dir && \$(MAKE) test
329 \$(RM) $ac_dir/*.ok"])
332 wine_fn_config_tool ()
336 if test "$ac_dir" != tools
338 dnl makedep is in tools so tools makefile cannot depend on it
339 ac_deps="$ac_deps \$(MAKEDEP)"
341 wine_fn_all_dir_rules $ac_dir "$ac_deps"
343 AS_VAR_IF([enable_tools],[no],,[case $ac_dir in
344 dnl tools directory has both install-lib and install-dev
345 tools) wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
347 @cd $ac_dir && \$(MAKE) install
348 install-lib:: $ac_dir
349 @cd $ac_dir && \$(MAKE) install-lib
350 install-dev:: $ac_dir
351 @cd $ac_dir && \$(MAKE) install-dev" ;;
352 *) wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
353 "install install-dev:: $ac_dir
354 @cd $ac_dir && \$(MAKE) install" ;;
356 wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
357 "uninstall:: $ac_dir/Makefile
358 @cd $ac_dir && \$(MAKE) uninstall
359 all __tooldeps__ .PHONY: $ac_dir
360 $ac_dir: $ac_dir/Makefile libs/port dummy
361 @cd $ac_dir && \$(MAKE)"])
364 wine_fn_config_makerules ()
368 wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
369 "$ac_rules: $ac_rules.in $ac_deps config.status
370 @./config.status $ac_rules
375 wine_fn_config_symlink ()
378 wine_fn_append_rule ALL_MAKEFILE_DEPENDS \
380 @./config.status $ac_link
385 dnl **** Define helper function to append a file to a makefile file list ****
387 dnl Usage: WINE_APPEND_FILE(var,file)
389 AC_DEFUN([WINE_APPEND_FILE],[AC_REQUIRE([WINE_CONFIG_HELPERS])wine_fn_append_file $1 "$2"])
391 dnl **** Define helper function to append a rule to a makefile command list ****
393 dnl Usage: WINE_APPEND_RULE(var,rule)
395 AC_DEFUN([WINE_APPEND_RULE],[AC_REQUIRE([WINE_CONFIG_HELPERS])wine_fn_append_rule $1 "$2"])
397 dnl **** Create nonexistent directories from config.status ****
399 dnl Usage: WINE_CONFIG_EXTRA_DIR(dirname)
401 AC_DEFUN([WINE_CONFIG_EXTRA_DIR],
402 [AC_CONFIG_COMMANDS([$1],[test -d "$1" || { AC_MSG_NOTICE([creating $1]); AS_MKDIR_P("$1"); }])])
404 dnl **** Create symlinks from config.status ****
406 dnl Usage: WINE_CONFIG_SYMLINK(name,target)
408 AC_DEFUN([WINE_CONFIG_SYMLINK],[AC_REQUIRE([WINE_CONFIG_HELPERS])dnl
409 AC_CONFIG_LINKS([$1:]m4_default([$2],[$1]))dnl
410 m4_if([$2],,[test "$srcdir" = "." || ])wine_fn_config_symlink $1])
412 dnl **** Create a make rules file from config.status ****
414 dnl Usage: WINE_CONFIG_MAKERULES(file,var,deps)
416 AC_DEFUN([WINE_CONFIG_MAKERULES],[AC_REQUIRE([WINE_CONFIG_HELPERS])dnl
417 wine_fn_config_makerules $1 $3
419 AC_SUBST_FILE([$2])dnl
420 AC_CONFIG_FILES([$1])])
422 dnl **** Create a makefile from config.status ****
424 dnl Usage: WINE_CONFIG_MAKEFILE(file,enable)
426 AC_DEFUN([WINE_CONFIG_MAKEFILE],[AC_REQUIRE([WINE_CONFIG_HELPERS])dnl
427 AS_VAR_PUSHDEF([ac_enable],m4_default([$2],[enable_]$1))dnl
428 wine_fn_config_makefile [$1] ac_enable[]dnl
429 AS_VAR_POPDEF([ac_enable])])
431 dnl **** Create a dll makefile from config.status ****
433 dnl Usage: WINE_CONFIG_DLL(name,enable,implib,implibsrc)
435 AC_DEFUN([WINE_CONFIG_DLL],[AC_REQUIRE([WINE_CONFIG_HELPERS])dnl
436 AS_VAR_PUSHDEF([ac_enable],m4_default([$2],[enable_]$1))dnl
437 wine_fn_config_dll [$1] ac_enable [$3] m4_ifval([$4],["$4"])dnl
438 AS_VAR_POPDEF([ac_enable])])
440 dnl **** Create a program makefile from config.status ****
442 dnl Usage: WINE_CONFIG_PROGRAM(name,install,enable)
444 AC_DEFUN([WINE_CONFIG_PROGRAM],[AC_REQUIRE([WINE_CONFIG_HELPERS])dnl
445 AS_VAR_PUSHDEF([ac_enable],m4_default([$3],[enable_]$1))dnl
446 wine_fn_config_program [$1] ac_enable [$2]dnl
447 AS_VAR_POPDEF([ac_enable])])
449 dnl **** Create a test makefile from config.status ****
451 dnl Usage: WINE_CONFIG_TEST(dir)
453 AC_DEFUN([WINE_CONFIG_TEST],[AC_REQUIRE([WINE_CONFIG_HELPERS])dnl
454 m4_pushdef([ac_suffix],m4_if(m4_substr([$1],0,9),[programs/],[.exe_test],[_test]))dnl
455 m4_pushdef([ac_name],[m4_bpatsubst([$1],[.*/\(.*\)/tests$],[\1])])dnl
456 wine_fn_config_test $1 ac_name[]ac_suffix[]dnl
457 m4_popdef([ac_suffix])dnl
458 m4_popdef([ac_name])])
460 dnl **** Create a static lib makefile from config.status ****
462 dnl Usage: WINE_CONFIG_LIB(name)
464 AC_DEFUN([WINE_CONFIG_LIB],[AC_REQUIRE([WINE_CONFIG_HELPERS])dnl
465 wine_fn_config_lib $1])
467 dnl **** Create a tool makefile from config.status ****
469 dnl Usage: WINE_CONFIG_TOOL(name)
471 AC_DEFUN([WINE_CONFIG_TOOL],[AC_REQUIRE([WINE_CONFIG_HELPERS])dnl
472 wine_fn_config_tool $1])
474 dnl **** Add a message to the list displayed at the end ****
476 dnl Usage: WINE_NOTICE(notice)
477 dnl Usage: WINE_NOTICE_WITH(with_flag, test, notice)
478 dnl Usage: WINE_WARNING(warning)
479 dnl Usage: WINE_WARNING_WITH(with_flag, test, warning)
480 dnl Usage: WINE_PRINT_MESSAGES
482 AC_DEFUN([WINE_NOTICE],[AS_VAR_APPEND([wine_notices],["|$1"])])
483 AC_DEFUN([WINE_WARNING],[AS_VAR_APPEND([wine_warnings],["|$1"])])
485 AC_DEFUN([WINE_NOTICE_WITH],[AS_IF([$2],[case "x$with_$1" in
486 x) WINE_NOTICE([$3]) ;;
489 This is an error since --with-$1 was requested.]) ;;
492 AC_DEFUN([WINE_WARNING_WITH],[AS_IF([$2],[case "x$with_$1" in
493 x) WINE_WARNING([$3]) ;;
496 This is an error since --with-$1 was requested.]) ;;
499 AC_DEFUN([WINE_ERROR_WITH],[AS_IF([$2],[case "x$with_$1" in
502 Use the --without-$1 option if you really want this.]) ;;
505 AC_DEFUN([WINE_PRINT_MESSAGES],[ac_save_IFS="$IFS"
506 if test "x$wine_notices != "x; then
509 for msg in $wine_notices; do
511 if test -n "$msg"; then
512 AC_MSG_NOTICE([$msg])
517 for msg in $wine_warnings; do
519 if test -n "$msg"; then
527 dnl compile-command: "autoreconf --warnings=all"