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authorRoland McGrath <roland@redhat.com>1994-10-10 08:10:13 +0000
committerRoland McGrath <roland@redhat.com>1994-10-10 08:10:13 +0000
commit4308542cb1185b281bbf44b07cfea34558f9733c (patch)
tree17408a654fdbef685ca62c6637be4307695ea25c /make.texinfo
parente622fcf22ee0b9622fe880dbd16e53adcc79f044 (diff)
downloadmake-4308542cb1185b281bbf44b07cfea34558f9733c.tar.gz
Document $+ and $(+D), $(+F).
Diffstat (limited to 'make.texinfo')
-rw-r--r--make.texinfo21
1 files changed, 18 insertions, 3 deletions
diff --git a/make.texinfo b/make.texinfo
index dc87fbf8..8d2f7440 100644
--- a/make.texinfo
+++ b/make.texinfo
@@ -7110,6 +7110,14 @@ the value of @code{$^} contains just one copy of the name.
@cindex dependencies, list of all
@cindex list of all dependencies
+@vindex $+
+@vindex + @r{(automatic variable)}
+@item $+
+This is like @samp{$^}, but dependencies listed more than once are
+duplicated in the order they were listed in the makefile. This is
+primarily useful for use in linking commands where it is meaningful to
+repeat library file names in a particular order.
+
@vindex $*
@vindex * @r{(automatic variable)}
@item $*
@@ -7934,8 +7942,9 @@ same time. @xref{Chained Rules, ,Chains of Implicit Rules}.
@item
The automatic variable @code{$^} containing a list of all dependencies
-of the current target. We did not invent this, but we have no idea who did.
-@xref{Automatic, ,Automatic Variables}.
+of the current target. We did not invent this, but we have no idea who
+did. @xref{Automatic, ,Automatic Variables}. The automatic variable
+@code{$+} is a simple extension of @code{$^}.
@item
The ``what if'' flag (@samp{-W} in GNU @code{make}) was (as far as we know)
@@ -8403,9 +8412,11 @@ For dependencies which are archive members, only
the member named is used (@pxref{Archives}).
@item $^
+@itemx $+
The names of all the dependencies, with spaces between them. For
dependencies which are archive members, only the member named is used
-(@pxref{Archives}).
+(@pxref{Archives}). The value of @code{$^} omits duplicate
+dependencies, while @code{$+} retains them and preserves their order.
@item $*
The stem with which an implicit rule matches
@@ -8431,6 +8442,10 @@ The directory part and the file-within-directory part of @code{$<}.
@itemx $(^F)
The directory part and the file-within-directory part of @code{$^}.
+@item $(+D)
+@itemx $(+F)
+The directory part and the file-within-directory part of @code{$+}.
+
@item $(?D)
@itemx $(?F)
The directory part and the file-within-directory part of @code{$?}.