sourcebuild.texi: Document usage of line number 0 in verify compiler messages directives.

	* doc/sourcebuild.texi: Document usage of line number 0 in verify
	compiler messages directives.

From-SVN: r261493

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0b77ed1af1ade1e656aed23b00f60c55f9a1458f..61784b4e839b08002f923fb4a4fc09d334fa2d1f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2018-06-12  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
+
+       * doc/sourcebuild.texi: Document usage of line number 0 in verify
+       compiler messages directives.
+
 2018-06-12  Matthew Fortune  <mfortune@gmail.com>
 
        * config/mips/mips-cpus.def: New MIPS_CPU for i6500.

diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index 09c00531333c726b7146b0050c4753ad1f763740..d52183d9c60b5b07e20b56fc04508390ddb1f9df 100644 (file)
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -1177,6 +1177,8 @@ conditions (which are the same as for @code{dg-skip-if}) are met.
 @end table
 
 @subsubsection Verify compiler messages
+Where @var{line} is an accepted argument for these commands, a value of @samp{0}
+can be used if there is no line associated with the message.
 
 @table @code
 @item @{ dg-error @var{regexp} [@var{comment} [@{ target/xfail @var{selector} @} [@var{line}] ]] @}