--- /dev/null
+# Most of this is probably too coreutils-centric to be useful to other packages.
+
+bin=bin-$$$$
+
+write_loser = printf '\#!%s\necho $$0: bad path 1>&2; exit 1\n' '$(SHELL)'
+
+tmpdir = $(abs_top_builddir)/tests/torture
+
+t=$(tmpdir)/$(PACKAGE)/test
+pfx=$(t)/i
+
+built_programs = \
+ $$(echo 'spy:;@echo $$(bin_PROGRAMS)' \
+ | MAKEFLAGS= $(MAKE) -s -f Makefile -f - spy \
+ | fmt -1 | sed 's,$(EXEEXT)$$,,' | sort -u)
+
+# More than once, tainted build and source directory names would
+# have caused at least one "make check" test to apply "chmod 700"
+# to all directories under $HOME. Make sure it doesn't happen again.
+tp = $(tmpdir)/taint
+t_prefix = $(tp)/a
+t_taint = '$(t_prefix) b'
+fake_home = $(tp)/home
+
+# When extracting from a distribution tarball, extract using the fastest
+# method possible. With dist-xz, that means using the *.xz file.
+ifneq ('', $(filter *.xz, $(DIST_ARCHIVES)))
+ tar_decompress_opt_ = J
+ suffix_ = xz
+else
+ ifneq ('', $(filter *.gz, $(DIST_ARCHIVES)))
+ tar_decompress_opt_ = z
+ suffix_ = gz
+ else
+ tar_decompress_opt_ = j
+ suffix_ = bz2
+ endif
+endif
+amtar_extract_ = $(AMTAR) -$(tar_decompress_opt_)xf
+preferred_tarball_ = $(distdir).tar.$(suffix_)
+
+# Ensure that tests run from tainted build and src dir names work,
+# and don't affect anything in $HOME. Create witness files in $HOME,
+# record their attributes, and build/test. Then ensure that the
+# witnesses were not affected.
+# Skip this test when using libtool, since libtool-generated scripts
+# cannot deal with a space-tainted srcdir.
+ALL_RECURSIVE_TARGETS += taint-distcheck
+taint-distcheck: $(DIST_ARCHIVES)
+ grep '^[ ]*LT_INIT' configure.ac >/dev/null && exit 0 || :
+ test -d $(t_taint) && chmod -R 700 $(t_taint) || :
+ -rm -rf $(t_taint) $(fake_home)
+ mkdir -p $(t_prefix) $(t_taint) $(fake_home)
+ $(amtar_extract_) $(preferred_tarball_) -C $(t_taint)
+ mkfifo $(fake_home)/fifo
+ touch $(fake_home)/f
+ mkdir -p $(fake_home)/d/e
+ ls -lR $(fake_home) $(t_prefix) > $(tp)/.ls-before
+ HOME=$(fake_home); export HOME; \
+ cd $(t_taint)/$(distdir) \
+ && ./configure \
+ && $(MAKE) \
+ && $(MAKE) check \
+ && ls -lR $(fake_home) $(t_prefix) > $(tp)/.ls-after \
+ && diff $(tp)/.ls-before $(tp)/.ls-after \
+ && test -d $(t_prefix)
+ rm -rf $(tp)
+
+# Verify that a twisted use of --program-transform-name=PROGRAM works.
+define install-transform-check
+ echo running install-transform-check \
+ && rm -rf $(pfx) \
+ && $(MAKE) program_transform_name='s/.*/zyx/' \
+ prefix=$(pfx) install \
+ && test "$$(echo $(pfx)/bin/*)" = "$(pfx)/bin/zyx" \
+ && test "$$(find $(pfx)/share/man -type f|sed 's,.*/,,;s,\..*,,')" = "zyx"
+endef
+
+# Install, then verify that all binaries and man pages are in place.
+# Note that neither the binary, ginstall, nor the [.1 man page is installed.
+define my-instcheck
+ echo running my-instcheck; \
+ $(MAKE) prefix=$(pfx) install \
+ && test ! -f $(pfx)/bin/ginstall \
+ && { fail=0; \
+ for i in $(built_programs); do \
+ test "$$i" = ginstall && i=install; \
+ for j in "$(pfx)/bin/$$i" \
+ "$(pfx)/share/man/man1/$$i.1"; do \
+ case $$j in *'[.1') continue;; esac; \
+ test -f "$$j" && : \
+ || { echo "$$j not installed"; fail=1; }; \
+ done; \
+ done; \
+ test $$fail = 1 && exit 1 || :; \
+ }
+endef
+
+# The hard-linking for-loop below ensures that there is a bin/ directory
+# full of all of the programs under test (except the ones that are required
+# for basic Makefile rules), all symlinked to the just-built "false" program.
+# This is to ensure that if ever a test neglects to make PATH include
+# the build srcdir, these always-failing programs will run.
+# Otherwise, it is too easy to test the wrong programs.
+# Note that "false" itself is a symlink to true, so it too will malfunction.
+define coreutils-path-check
+ { \
+ echo running coreutils-path-check; \
+ if test -f $(srcdir)/src/true.c; then \
+ fail=1; \
+ mkdir $(bin) \
+ && ($(write_loser)) > $(bin)/loser \
+ && chmod a+x $(bin)/loser \
+ && for i in $(built_programs); do \
+ case $$i in \
+ rm|expr|basename|echo|sort|ls|tr);; \
+ cat|dirname|mv|wc);; \
+ *) ln $(bin)/loser $(bin)/$$i;; \
+ esac; \
+ done \
+ && ln -sf ../src/true $(bin)/false \
+ && PATH=`pwd`/$(bin)$(PATH_SEPARATOR)$$PATH \
+ $(MAKE) -C tests check \
+ && { test -d gnulib-tests \
+ && $(MAKE) -C gnulib-tests check \
+ || :; } \
+ && rm -rf $(bin) \
+ && fail=0; \
+ else \
+ fail=0; \
+ fi; \
+ test $$fail = 1 && exit 1 || :; \
+ }
+endef
+
+# More generic version of the rule above.
+define generic-path-check
+ { \
+ echo running generic-path-check; \
+ if test -f /bin/false; then \
+ fail=1; \
+ mkdir $(bin) \
+ && ($(write_loser)) > $(bin)/loser \
+ && chmod a+x $(bin)/loser \
+ && for i in $(built_programs); do \
+ ln $(bin)/loser $(bin)/$$i; \
+ done \
+ && PATH=`pwd`/$(bin)$(PATH_SEPARATOR)$$PATH \
+ $(MAKE) check \
+ && { test -d gnulib-tests \
+ && $(MAKE) -C gnulib-tests check \
+ || :; } \
+ && rm -rf $(bin) \
+ && fail=0; \
+ else \
+ fail=0; \
+ fi; \
+ test $$fail = 1 && exit 1 || :; \
+ }
+endef
+
+# Use this to make sure we don't run these programs when building
+# from a virgin compressed tarball file, below.
+null_AM_MAKEFLAGS ?= \
+ ACLOCAL=false \
+ AUTOCONF=false \
+ AUTOMAKE=false \
+ AUTOHEADER=false \
+ GPERF=false \
+ MAKEINFO=false
+
+ALL_RECURSIVE_TARGETS += my-distcheck
+my-distcheck: $(DIST_ARCHIVES) $(local-check)
+ $(MAKE) syntax-check
+ $(MAKE) check
+ -rm -rf $(t)
+ mkdir -p $(t)
+ $(amtar_extract_) $(preferred_tarball_) -C $(t)
+ (set -e; cd $(t)/$(distdir); \
+ ./configure --quiet --enable-gcc-warnings --disable-nls; \
+ $(MAKE) AM_MAKEFLAGS='$(null_AM_MAKEFLAGS)'; \
+ $(MAKE) dvi; \
+ $(install-transform-check); \
+ $(my-instcheck); \
+ $(coreutils-path-check); \
+ $(generic-path-check); \
+ $(MAKE) distclean \
+ )
+ (cd $(t) && mv $(distdir) $(distdir).old \
+ && $(amtar_extract_) - ) < $(preferred_tarball_)
+ diff -ur $(t)/$(distdir).old $(t)/$(distdir)
+ -rm -rf $(t)
+ rmdir $(tmpdir)/$(PACKAGE) $(tmpdir)
+ @echo "========================"; \
+ echo "ready for distribution:"; \
+ for i in $(DIST_ARCHIVES); do echo " $$i"; done; \
+ echo "========================"
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