* doc/cpp.texi: Exclude entire Top node from printed manual.
Move option index after directive index. Insert page breaks
before GFDL and concept index. Index environment variables
with command line options.
* doc/cppenv.texi: Use @vtable for environment variable list.
Add paragraph explaining semantics of empty elements in path
variables. Exclude a cross-reference to Fishkill from the
manpage. Remove an unnecessary cross-reference of the entry
right above the referer. Don't use @anchor in text that goes
into manpage.
* doc/cppopts.texi: Cross-reference the environment variables
section, not the specific environment variable, for consistency.
From-SVN: r51365
+2002-03-25 Zack Weinberg <zack@codesourcery.com>
+
+ * doc/cpp.texi: Exclude entire Top node from printed manual.
+ Move option index after directive index. Insert page breaks
+ before GFDL and concept index. Index environment variables
+ with command line options.
+ * doc/cppenv.texi: Use @vtable for environment variable list.
+ Add paragraph explaining semantics of empty elements in path
+ variables. Exclude a cross-reference to Fishkill from the
+ manpage. Remove an unnecessary cross-reference of the entry
+ right above the referer. Don't use @anchor in text that goes
+ into manpage.
+ * doc/cppopts.texi: Cross-reference the environment variables
+ section, not the specific environment variable, for consistency.
+
2002-03-25 Richard Henderson <rth@redhat.com>
* recog.c (peephole2_optimize): Distribute EH_REGION -1 notes
@macro copyrightnotice
@c man begin COPYRIGHT
Copyright @copyright{} 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996,
-1997, 1998, 1999, 2000, 2001
+1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
@c Create a separate index for command line options.
@defcodeindex op
+@syncodeindex vr op
@c Used in cppopts.texi and cppenv.texi.
@set cppmanual
@contents
@page
+@ifnottex
@node Top
@top
The C preprocessor implements the macro language used to transform C,
* Invocation::
* Environment Variables::
* GNU Free Documentation License::
-* Option Index::
* Index of Directives::
+* Option Index::
* Concept Index::
@detailmenu
@end detailmenu
@end menu
-@ifnottex
@copyrightnotice{}
@covertexts{}
@end ifnottex
@include cppenv.texi
@c man end
+@page
@include fdl.texi
@page
-@node Option Index
-@unnumbered Option Index
-
-CPP's command line options are indexed here without any initial
-@samp{-} or @samp{--}.
-
-@printindex op
-
@node Index of Directives
@unnumbered Index of Directives
@printindex fn
+@node Option Index
+@unnumbered Option Index
+@noindent
+CPP's command line options and environment variables are indexed here
+without any initial @samp{-} or @samp{--}.
+@printindex op
+
+@page
@node Concept Index
@unnumbered Concept Index
@printindex cp
@c If this file is included with the flag ``cppmanual'' set, it is
@c formatted for inclusion in the CPP manual; otherwise the main GCC manual.
-@ftable @env
+@vtable @env
@item CPATH
@itemx C_INCLUDE_PATH
@itemx CPLUS_INCLUDE_PATH
@env{CPATH} specifies a list of directories to be searched as if
specified with @option{-I}, but after any paths given with @option{-I}
-options on the command line. The environment variable is used
+options on the command line. This environment variable is used
regardless of which language is being preprocessed.
The remaining environment variables apply only when preprocessing the
to be searched as if specified with @option{-isystem}, but after any
paths given with @option{-isystem} options on the command line.
+In all these variables, an empty element instructs the compiler to
+search its current working directory. Empty elements can appear at the
+beginning or end of a path. For instance, if the value of
+@env{CPATH} is @code{:/special/include}, that has the same
+effect as @samp{@w{-I. -I/special/include}}.
+
+@c man end
@ifset cppmanual
See also @ref{Search Path}.
@end ifset
+@c man begin ENVIRONMENT
@item DEPENDENCIES_OUTPUT
-@anchor{DEPENDENCIES_OUTPUT}
@cindex dependencies for make as output
If this variable is set, its value specifies how to output
dependencies for Make based on the non-system header files processed
@item SUNPRO_DEPENDENCIES
@cindex dependencies for make as output
-This variable is the same as the environment variable
-@env{DEPENDENCIES_OUTPUT} (@pxref{DEPENDENCIES_OUTPUT}), except that
-system header files are not ignored, so it implies @option{-M} rather
-than @option{-MM}.
+This variable is the same as @env{DEPENDENCIES_OUTPUT} (see above),
+except that system header files are not ignored, so it implies
+@option{-M} rather than @option{-MM}.
@ifset cppmanual
@xref{Invocation}.
@end ifset
@ifclear cppmanual
@xref{Preprocessor Options}.
@end ifclear
-@end ftable
+@end vtable
@option{-dM}. To avoid mixing such debug output with the dependency
rules you should explicitly specify the dependency output file with
@option{-MF}, or use an environment variable like
-@env{DEPENDENCIES_OUTPUT} (@pxref{DEPENDENCIES_OUTPUT}). Debug output
+@env{DEPENDENCIES_OUTPUT} (@pxref{Environment Variables}). Debug output
will still be sent to the regular output stream as normal.
Passing @option{-M} to the driver implies @option{-E}.
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