X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2FMakefile.am;h=73a7cb5a8fe0ffa7bc2fa2c1a6e0754e9f3b16d0;hb=91abc3ea5f6beb62c546bd01777dd056e1ffcd39;hp=815cc90431398206e1eccd84897167f6e68e3cb3;hpb=b58b3db2436af7b7e2299918195c1584ba471627;p=gnulib.git

diff --git a/lib/Makefile.am b/lib/Makefile.am
index 815cc9043..73a7cb5a8 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -9,7 +9,7 @@ DEFS = -DLIBDIR=\"$(libdir)\" @DEFS@
 
 libfetish_a_SOURCES = \
   getdate.y posixtm.c addext.c argmatch.c backupfile.c basename.c \
-  canon-host.c closeout.c dirname.c exclude.c filemode.c diacrit.c \
+  canon-host.c closeout.c diacrit.c dirname.c exclude.c filemode.c \
   full-write.c getopt.c getopt1.c getugroups.c hard-locale.c hash.c \
   human.c idcache.c isdir.c linebuffer.c localcharset.c long-options.c \
   makepath.c md5.c memcasecmp.c memcoll.c modechange.c path-concat.c \
@@ -35,7 +35,7 @@ BUILT_SOURCES = getdate.c lstat.c stat.c
 MAINTAINERCLEANFILES = $(BUILT_SOURCES)
 DISTCLEANFILES = lstat.c stat.c
 
-EXTRA_DIST = xstat.in config.charset
+EXTRA_DIST = xstat.in config.charset ref-add.sin ref-del.sin
 lstat.c: xstat.in
 	sed \
 	  -e '/@IGNORE@/d' \
@@ -55,20 +55,43 @@ stat.c: xstat.in
 	mv $@-t $@
 
 
-# What a mess needed in order to install a simple file in $(libdir)!
+# The following is needed in order to install a simple file in $(libdir)
+# which is shared with other installed packages. We use a list of referencing
+# packages so that "make uninstall" will remove the file if and only if it
+# is not used by another installed package.
 
-all-local: charset.alias
+all-local: charset.alias ref-add.sed ref-del.sed
 
+charset_alias = $(DESTDIR)$(libdir)/charset.alias
+charset_tmp = $(DESTDIR)$(libdir)/charset.tmp
 install-exec-local: all-local
 	$(mkinstalldirs) $(DESTDIR)$(libdir)
-	$(INSTALL_DATA) charset.alias $(libdir)/charset.alias
-
-# Probably not a good idea. Other packages need $(libdir)/charset.alias too.
-#uninstall-local:
-#	-rm -f $(libdir)/charset.alias
+	test -f $(charset_alias) \
+	  && orig=$(charset_alias) \
+	  || orig=charset.alias; \
+	sed -f ref-add.sed $$orig > $(charset_tmp)
+	$(INSTALL_DATA) $(charset_tmp) $(charset_alias)
+	rm -f $(charset_tmp)
+
+uninstall-local: all-local
+	if test -f $(charset_alias); then \
+	  sed -f ref-del.sed $(charset_alias) > $(charset_tmp); \
+	  if grep '^# Packages using this file: $$' $(charset_tmp) \
+	      > /dev/null; then \
+	    rm -f $(charset_alias); \
+	  else \
+	    $(INSTALL_DATA) $(charset_tmp) $(charset_alias); \
+	  fi; \
+	  rm -f $(charset_tmp); \
+	fi
 
 charset.alias: config.charset
-	$(SHELL) $(srcdir)/config.charset '@host@' > $@-t
+	$(SHELL) $(srcdir)/config.charset '@host@' > t-$@
+	mv t-$@ $@
+
+SUFFIXES = .sed .sin
+.sin.sed:
+	sed -e '/^#/d' -e 's/@''PACKAGE''@/@PACKAGE@/g' $< > $@-t
 	mv $@-t $@
 
-CLEANFILES = charset.alias
+CLEANFILES = charset.alias ref-add.sed ref-del.sed