2 # Copyright (C) 2012-2013 Free Software Foundation, Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 2, or (at your option)
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 # Check dependency tracking in various flavours.
18 # Contains both libtool and non-libtool case.
19 # Sourced by the various (autogenerated) 'depcomp*.tap' tests.
20 # Examples of reported failures that motivated those test are
23 # -------------------------------------------------------------------------
25 # <http://lists.gnu.org/archive/html/automake-patches/2011-04/msg00028.html>
27 # Here's the bug: makedepend will prefix VPATH to the object file name,
28 # thus the second make will invoke depcomp with object='../../src/foo.o',
29 # causing errors such as:
31 # touch: cannot touch '../../src/.deps/foo.TPo': No such file or directory
32 # makedepend: error: cannot open "../../src/.deps/foo.TPo"
33 # ../../depcomp: line 560: ../../src/.deps/foo.TPo: No such file or directory
35 # -------------------------------------------------------------------------
37 # <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8473>
38 # <http://lists.gnu.org/archive/html/automake-patches/2011-04/msg00079.html>
40 # Here's the bug: hp depmode will prefix VPATH to the object file name,
41 # thus the second gmake will invoke depcomp with object='../../src/foo.o',
42 # causing errors such as (broken on multiple lines for clarity):
44 # cpp: "", line 0: error 4066: Cannot create
45 # "../../gllib/.deps/nonblocking.TPo" file for
46 # "-M../../gllib/.deps/nonblocking.TPo" option.
47 # (No such file or directory[errno=2])
50 # -------------------------------------------------------------------------
52 # <http://lists.gnu.org/archive/html/automake-patches/2011-04/msg00140.html>
53 # <http://lists.gnu.org/archive/html/automake-patches/2011-05/msg00019.html>
55 # A partial failure of an earlier version of this test; some bad
56 # post-processing of the '*.Po' files led to the following broken
57 # contents of 'src/sub/.deps/subfoo.Po':
59 # > sub/subfoo.o: ../../depmod-data.dir/src/sub/subfoo.c \
60 # > ../../depmod-data.dir/src/foo.h
61 # > ../../depmod-data.dir/src/sub/subfoo.c \:
62 # > ../../depmod-data.dir/src/foo.h:
64 # which caused make to die with an error like:
66 # "sub/.deps/subfoo.Po:3: *** missing separator. Stop."
68 # -------------------------------------------------------------------------
70 # This code expects test-init.sh has already been included in advance.
72 ocwd=$(pwd) || fatal_ "getting current working directory"
73 longpath=this-is/a-path/which-has/quite-a/definitely/truly/long_long_name
74 cachevar=am_cv_CC_dependencies_compiler_type
82 cd "$ocwd" || fatal_ "cannot chdir back to top directory"
87 test -f "$1" || fatal_ "$1: file does not exist"
88 rm -f "$1" || fatal_ "$1: couldn't remove"
94 sed "$@" <"$file" > t && mv -f t "$file" \
95 || fatal_ "$file: editing of file failed"
101 "$@" > "$file" || fatal_ "$file: couldn't rewrite"
106 srcdir=$1 # This is intended to be global.
108 || fatal_ "couldn't create source directory '$srcdir'"
109 cp -pR "$ocwd/$srctree"/* "$srcdir"/ \
110 || fatal_ "couldn't populate source directory '$srcdir'"
116 find . -name '*.Plo' -o -name '*.Po' | grep . && return 1
122 # "make distcleancheck" can only run from a VPATH build.
123 if test $vpath = no; then
124 make_ok distclean && check_no_depfiles
130 cat > configure.ac <<END
131 AC_INIT([$me], [1.0])
132 AC_CONFIG_AUX_DIR([build-aux])
133 AM_INIT_AUTOMAKE([subdir-objects])
136 $(if test $depcomp_with_libtool = yes; then
141 AC_CONFIG_FILES([Makefile src/Makefile])
145 mkdir build-aux sub src src/sub2
147 case $depcomp_with_libtool in
149 po=Plo objext=lo a=la
150 normalized_target=libfoo_la
151 # On platforms requiring that no undefined symbols exist in order
152 # to build shared libraries (e.g. Windows DLLs), you have to
153 # explicitly declare that the libtool library you are building
154 # does not actually have any undefined symbols, for libtool to
155 # even try to build it as a shared library. Without that
156 # explicit declaration, libtool falls back to a static library
157 # only, regardless of any --enable-shared flags etc.
158 LIBPRIMARY=LTLIBRARIES LINKADD=LIBADD NOUNDEF=-no-undefined
159 libbaz_ldflags="libbaz_${a}_LDFLAGS = $NOUNDEF"
160 echo lib_LTLIBRARIES = libfoo.la >> Makefile.am
163 run_make -M -- ${1+"$@"}
164 $FGREP 'unknown directive' output && return 1
166 # Checks for stray files possibly left around by less common
168 find . -name '*.[ud]' | grep . && return 1
173 po=Po objext='$(OBJEXT)' a=a
174 normalized_target=foo
175 LIBPRIMARY=LIBRARIES LINKADD=LDADD NOUNDEF=
177 echo bin_PROGRAMS = foo >> Makefile.am
184 fatal_ "invalid value '$depcomp_with_libtool' for variable" \
185 "\$depcomp_with_libtool"
189 cat >> Makefile.am <<END
191 # We include subfoo only to be sure that the munging in depcomp
192 # doesn't remove too much from the object file name.
193 ${normalized_target}_SOURCES = foo.c sub/subfoo.c foo.h sub/subfoo.h
194 ${normalized_target}_LDFLAGS = $NOUNDEF
195 ${normalized_target}_${LINKADD} = src/libbaz.$a
200 cat \$(DEPDIR)/foo.$po || :
201 cat sub/\$(DEPDIR)/subfoo.$po || :
202 cat src/\$(DEPDIR)/baz.$po || :
203 cat src/sub2/\$(DEPDIR)/sub2foo.$po || :
204 ## Checks are done here.
205 grep '^foo.$objext.*:' \$(DEPDIR)/foo.$po
206 grep '^sub/subfoo\.$objext.*:' sub/\$(DEPDIR)/subfoo.$po
207 grep '^baz\.$objext.*:' src/\$(DEPDIR)/baz.$po
208 grep '^sub2/sub2foo\.$objext.*:' src/sub2/\$(DEPDIR)/sub2foo.$po
211 cat > src/Makefile.am <<END
212 noinst_${LIBPRIMARY} = libbaz.$a
213 # We include sub2foo only to be sure that the munging in depcomp
214 # doesn't remove too much from the object file name.
215 libbaz_${a}_SOURCES = baz.c sub2/sub2foo.c baz.h sub2/sub2foo.h
225 printf ("foo bar\n");
226 exit (EXIT_SUCCESS + subfoo () + baz ());
232 #include "sub/subfoo.h"
235 cat > sub/subfoo.c <<'END'
236 #include "sub/subfoo.h"
237 int subfoo (void) { return 0; }
240 echo '/* empty */' > src/sub2/sub2foo.h
242 cat > sub/subfoo.h <<'END'
244 extern int subfoo (void);
247 cat > src/baz.c <<'END'
249 int baz (void) { return 0; }
252 cat > src/baz.h <<'END'
253 extern int baz (void);
256 cat > src/sub2/sub2foo.c <<'END'
258 int sub2foo (void) { return 0; }
261 test $depcomp_with_libtool = no || libtoolize \
262 || fatal_ "libtoolize failed"
263 $ACLOCAL && $AUTOCONF && $AUTOMAKE -a \
264 || fatal_ "autotools failed"
265 test -f build-aux/depcomp \
266 || fatal_ "depcomp script not installed"
268 # To offer extra coverage for the depmodes (like "aix" of "hp2") where the
269 # name of the compiler-generated depfiles can depend on whether libtool is
270 # in use *and* on which kind of libraries libtool is building (static,
271 # shared, or both), we would like to run the libtool-oriented tests thrice:
272 # once after having run configure with the '--disable-shared' option, once
273 # after having run it with the '--enable-shared' options, and once by
274 # leaving it to configure to automatically select which kind of library (or
275 # libraries) to build.
277 # But doing such three-fold checks unconditionally for all the depmodes
278 # would slow down the already too slow libtool tests unacceptably (up to a
279 # 150-200% factor), with no real gain in coverage for most of the depmodes.
280 # So, since the depmodes that would benefit from the extra tests are never
281 # forced to configure in out tests below, but can only be automatically
282 # selected by '--enable-dependency-tracking', we make this threefold check
283 # only in this later case.
285 if test $depmode,$depcomp_with_libtool = auto,yes; then
289 do_test noshared --disable-shared
290 do_test nostatic --disable-static
293 do_all_tests () { do_test; }
298 displayed_depmode='..*' # At least one character long.
299 cfg_deptrack=--enable-dependency-tracking ;;
301 displayed_depmode=none
302 cfg_deptrack=--disable-dependency-tracking ;;
304 displayed_depmode="(cached) $depmode"
305 cfg_deptrack="$cachevar=$depmode"
306 # Sanity check: ensure the cache variable we force is truly
308 $FGREP $cachevar configure \
309 || fatal_ "configure lacks required cache variable '$cachevar'";;
317 if test $vpath = no; then
322 if test $# -gt 0; then
325 test -d $subdir || mkdir $subdir || fatal_ "creating directory $subdir"
331 mkdir -p vpath-simple/build
332 cd vpath-simple/build
336 mkdir -p vpath-long/src vpath-long/wrk
338 setup_srcdir ../src/$longpath
341 mkdir -p vpath-abs/build
343 absdir=$(cd .. && pwd) || fatal_ "getting absolute directory"
344 setup_srcdir "$absdir/vpath-abs"
353 fatal_ "invalid value '$vpath' for variable \$vpath"
359 "$srcdir/configure" $cfg_deptrack ${1+"$@"} >stdout
363 "$pfx right depmode selected" \
364 grep "^checking dependency style .*\.\.\. $displayed_depmode$" stdout
367 command_ok_ "$pfx simple make" make_ok
368 # Some bugs in VPATH builds only kick in during a rebuild.
369 command_ok_ "$pfx clean & rebuild" eval '$MAKE clean && make_ok'
371 if test $depmode = disabled; then
372 command_ok_ "$pfx no dependency files generated" check_no_depfiles
374 && grep "[ $tab]depmode=none" Makefile \
375 && rewrite "$srcdir"/src/sub2/sub2foo.h echo 'choke me' \
376 && delete "$srcdir"/sub/subfoo.h \
379 result_ "$r" "$pfx dependency tracking is truly disabled"
380 elif grep "[ $tab]depmode=none" Makefile; then
381 skip_row_ 2 -r "automatic dependency tracking couldn't be activated"
383 command_ok_ "$pfx generated $po files look correct" $MAKE grep-test
385 && : "Some checks in the subdir." \
387 && : "Ensure rebuild rules really kick in." \
388 && rewrite "$srcdir"/src/sub2/sub2foo.h echo 'choke me' \
392 && : "Ensure the deleted header bug is fixed." \
393 && delete "$srcdir"/src/sub2/sub2foo.h \
394 && edit "$srcdir"/src/sub2/sub2foo.c -e 1d \
397 && : "Now do similar checks for the parent directory." \
399 && rewrite "$srcdir"/sub/subfoo.h echo 'choke me' \
401 && delete "$srcdir"/sub/subfoo.h \
402 && edit "$srcdir"/sub/subfoo.c -e 1d \
403 && edit "$srcdir"/foo.h -e 2d \
406 result_ "$r" "$pfx dependency tracking works"
409 command_ok_ "$pfx make distclean" check_distclean
413 for vpath in no simple long absolute; do