intl: Make the LCOV workaround non-intrusive

* gettext-runtime/intl/Makefile.in (PLURAL_OBJECT): New variable.
(OBJECTS): Refer to $(PLURAL_OBJECT) instead of plural.$lo.
(pluralx.c, pluralx.lo): New rule.
(mostlyclean): Remove pluralx.c.
* gettext-tools/configure.ac: Replace PLURAL_OBJECT in intl/Makefile.

2 files changed, 22 insertions, 8 deletions

diff --git a/gettext-runtime/intl/ChangeLog b/gettext-runtime/intl/ChangeLog
index d4cc23b..6a4517e 100644
--- a/gettext-runtime/intl/ChangeLog
+++ b/gettext-runtime/intl/ChangeLog
@@ -1,3 +1,11 @@
+2014-12-04  Daiki Ueno  <ueno@gnu.org>
+
+	intl: Make the LCOV workaround non-intrusive
+	* Makefile.in (PLURAL_OBJECT): New variable.
+	(OBJECTS): Refer to $(PLURAL_OBJECT) instead of plural.$lo.
+	(pluralx.c, pluralx.lo): New rule.
+	(mostlyclean): Remove pluralx.c.
+
 2014-12-03  Daiki Ueno  <ueno@gnu.org>
 
 	intl: Work around LCOV relative base directory resolution
diff --git a/gettext-runtime/intl/Makefile.in b/gettext-runtime/intl/Makefile.in
index 836a867..d18a99f 100644
--- a/gettext-runtime/intl/Makefile.in
+++ b/gettext-runtime/intl/Makefile.in
@@ -112,6 +112,10 @@ LIBS = @LIBS@
 
 COMPILE = $(CC) -c $(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS) $(XCFLAGS)
 
+# This line will be replaced with pluralx.$lo, when this file is used
+# in gettext-tools/intl/.  See the pluralx.lo rule below for the rationale.
+PLURAL_OBJECT = plural.$lo
+
 HEADERS = \
   gmo.h \
   gettextP.h \
@@ -179,7 +183,7 @@ OBJECTS = \
   dcngettext.$lo \
   dngettext.$lo \
   ngettext.$lo \
-  plural.$lo \
+  $(PLURAL_OBJECT) \
   plural-exp.$lo \
   localcharset.$lo \
   threadlib.$lo \
@@ -277,13 +281,15 @@ dngettext.lo: $(srcdir)/dngettext.c
 	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC --mode=compile $(COMPILE) $(srcdir)/dngettext.c
 ngettext.lo: $(srcdir)/ngettext.c
 	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC --mode=compile $(COMPILE) $(srcdir)/ngettext.c
+plural.lo: $(srcdir)/plural.c
+	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC --mode=compile $(COMPILE) $(srcdir)/plural.c
 # $(srcdir)/plural.c contains a relative file name of the Bison source.
-# That could mess up gcov when the C source file is referred to from a
+# That could mess up LCOV when the C source file is referred to from a
 # different base directory.
-plural.lo: $(srcdir)/plural.c
-	$(AM_V_GEN)test "$(srcdir)" = . || \
-	  sed -e 's|^#line \([0-9]*\) "\(plural\.[cy]\)"|#line \1 "$(srcdir)/\2"|' < $(srcdir)/plural.c > plural.c
-	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC --mode=compile $(COMPILE) plural.c
+pluralx.c: $(srcdir)/plural.c
+	$(AM_V_GEN)sed -e 's|^#line \([0-9]*\) "\(plural\.[cy]\)"|#line \1 "$(srcdir)/\2"|' < $(srcdir)/plural.c > $@
+pluralx.lo: pluralx.c
+	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC --mode=compile $(COMPILE) pluralx.c
 plural-exp.lo: $(srcdir)/plural-exp.c
 	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC --mode=compile $(COMPILE) $(srcdir)/plural-exp.c
 localcharset.lo: $(srcdir)/localcharset.c
@@ -589,7 +595,7 @@ bindtextdom.$lo dcgettext.$lo dcigettext.$lo dcngettext.$lo dgettext.$lo dngette
 localename.$lo: $(srcdir)/gettextP.h
 hash-string.$lo dcigettext.$lo loadmsgcat.$lo: $(srcdir)/hash-string.h
 explodename.$lo l10nflist.$lo: $(srcdir)/loadinfo.h
-dcigettext.$lo loadmsgcat.$lo plural.$lo plural-exp.$lo: $(srcdir)/plural-exp.h
+dcigettext.$lo loadmsgcat.$lo $(PLURAL_OBJECT) plural-exp.$lo: $(srcdir)/plural-exp.h
 dcigettext.$lo: $(srcdir)/eval-plural.h
 localcharset.$lo: $(srcdir)/localcharset.h
 bindtextdom.$lo dcigettext.$lo finddomain.$lo loadmsgcat.$lo localealias.$lo lock.$lo log.$lo: $(srcdir)/lock.h
@@ -621,7 +627,7 @@ mostlyclean:
 	rm -f *.a *.la *.o *.obj *.lo core core.*
 	rm -f libgnuintl.h libintl.h charset.alias ref-add.sed ref-del.sed
 	rm -f -r .libs _libs
-	test "$(srcdir)" = . || rm -f plural.c
+	rm -f pluralx.c
 
 clean: mostlyclean