depend: a preparatory refactoring

This is just a preparatory change in view of a future refactoring.
No semantic change is intended.

* lib/am/depend2.am: Adjust; for example, using '$@' in all recipes
to indicate the output file (rather than recipe-specific transforms
like '%OBJ%' and '%LTOBJ%'), and not assuming to know the exact
file extension of the output file (e.g., whether it's '.o' or '.lo').

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

diff --git a/lib/am/depend2.am b/lib/am/depend2.am
index 6c6c6843bad387a1704550b33d2dbcb71e7ae96d..a54fcd35f37ac47eba391d91644c7dbbea4f47de 100644 (file)
--- a/lib/am/depend2.am
+++ b/lib/am/depend2.am
@@ -38,18 +38,18 @@ if %?NONLIBTOOL%
 if %FASTDEP%
 ## TODO: rewrite this to avoid extra forks once we can assume a POSIX
 ## TODO: shell.
-       %VERBOSE%depbase=`echo %OBJ% | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'` \
-         && %COMPILE% -MT %OBJ% -MD -MP -MF $$depbase.Tpo -c -o %OBJ% %SOURCEFLAG% \
+       %VERBOSE%depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.[^.]*$$||'` \
+         && %COMPILE% -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ %SOURCEFLAG% \
 ?GENERIC?      %SOURCE% \
 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
 ?!GENERIC?     `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE% \
          && $(am__mv) $$depbase.Tpo $$depbase.Po
 else !%FASTDEP%
 if %AMDEP%
-       %VERBOSE%source='%SOURCE%' object='%OBJ%' libtool=no @AMDEPBACKSLASH@
+       %VERBOSE%source='%SOURCE%' object='$@' libtool=no @AMDEPBACKSLASH@
        DEPDIR=$(DEPDIR) $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@
 endif %AMDEP%
-       %VERBOSE-NODEP%%COMPILE% -c -o %OBJ% %SOURCEFLAG% \
+       %VERBOSE-NODEP%%COMPILE% -c -o $@ %SOURCEFLAG% \
 ?GENERIC?      %SOURCE%
 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
 ?!GENERIC?     `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%
@@ -60,8 +60,8 @@ endif !%FASTDEP%
 if %FASTDEP%
 ## TODO: rewrite this to avoid extra forks once we can assume a POSIX
 ## TODO: shell.
-       %VERBOSE%depbase=`echo %OBJ% | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'` \
-       && %COMPILE% -MT %OBJOBJ% -MD -MP -MF $$depbase.Tpo -c -o %OBJOBJ% %SOURCEFLAG% \
+       %VERBOSE%depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.[^.]*$$||'` \
+       && %COMPILE% -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ %SOURCEFLAG% \
 ?GENERIC?      `$(CYGPATH_W) '%SOURCE%'` \
 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
 ?!GENERIC?     `if test -f '%SOURCE%'; then $(CYGPATH_W) '%SOURCE%'; \
@@ -69,10 +69,10 @@ if %FASTDEP%
        && $(am__mv) $$depbase.Tpo $$depbase.Po
 else !%FASTDEP%
 if %AMDEP%
-       %VERBOSE%source='%SOURCE%' object='%OBJOBJ%' libtool=no @AMDEPBACKSLASH@
+       %VERBOSE%source='%SOURCE%' object='$@' libtool=no @AMDEPBACKSLASH@
        DEPDIR=$(DEPDIR) $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@
 endif %AMDEP%
-       %VERBOSE-NODEP%%COMPILE% -c -o %OBJOBJ% %SOURCEFLAG% \
+       %VERBOSE-NODEP%%COMPILE% -c -o $@ %SOURCEFLAG% \
 ?GENERIC?      `$(CYGPATH_W) '%SOURCE%'`
 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
 ?!GENERIC?     `if test -f '%SOURCE%'; then $(CYGPATH_W) '%SOURCE%'; \
@@ -86,18 +86,18 @@ if %?LIBTOOL%
 if %FASTDEP%
 ## TODO: rewrite this to avoid extra forks once we can assume a POSIX
 ## TODO: shell.
-       %VERBOSE%depbase=`echo %OBJ% | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'` \
-         && %LTCOMPILE% -MT %LTOBJ% -MD -MP -MF $$depbase.Tpo -c -o %LTOBJ% %SOURCEFLAG% \
+       %VERBOSE%depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.[^.]*$$||'` \
+         && %LTCOMPILE% -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ %SOURCEFLAG% \
 ?GENERIC?      %SOURCE% \
 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
 ?!GENERIC?     `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE% \
        && $(am__mv) $$depbase.Tpo $$depbase.Plo
 else !%FASTDEP%
 if %AMDEP%
-       %VERBOSE%source='%SOURCE%' object='%LTOBJ%' libtool=yes @AMDEPBACKSLASH@
+       %VERBOSE%source='%SOURCE%' object='$@' libtool=yes @AMDEPBACKSLASH@
        DEPDIR=$(DEPDIR) $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@
 endif %AMDEP%
-       %VERBOSE-NODEP%%LTCOMPILE% -c -o %LTOBJ% %SOURCEFLAG% \
+       %VERBOSE-NODEP%%LTCOMPILE% -c -o $@ %SOURCEFLAG% \
 ?GENERIC?      %SOURCE%
 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
 ?!GENERIC?     `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%