re PR ada/29157 (gnattools fail on cross compilation - Makefile bug?)

gcc/
	PR ada/29157
	* doc/install.texi: Explain how to check for a clean environment when
	building GNAT.

From-SVN: r130675
This commit is contained in:
Samuel Tardieu 2007-12-07 14:31:48 +00:00 committed by Samuel Tardieu
parent 5a2fe31acf
commit e397a9f1b6
2 changed files with 12 additions and 0 deletions

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@ -1,3 +1,9 @@
2007-12-07 Samuel Tardieu <sam@rfc1149.net>
PR ada/29157
* doc/install.texi: Explain how to check for a clean environment when
building GNAT.
2007-12-07 Richard Guenther <rguenther@suse.de>
* tree-profile.c (gcov_type_tmp_var): New global variable.

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@ -1913,6 +1913,12 @@ and has a sufficiently recent version; if too old a GNAT version is
installed, the build will fail unless @option{--enable-languages} is
used to disable building the Ada front end.
@env{ADA_INCLUDE_PATH} and @env{ADA_OBJECT_PATH} environment variables
must not be set when building the Ada compiler, the Ada tools, or the
Ada runtime libraries. You can check that your build environment is clean
by verifying that @samp{gnatls -v} lists only one explicit path in each
section.
@section Building with profile feedback
It is possible to use profile feedback to optimize the compiler itself. This