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[Bug driver/21553] GCC_EXEC_PREFIX mechanism is broken
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 May 2005 22:53:58 -0000
- Subject: [Bug driver/21553] GCC_EXEC_PREFIX mechanism is broken
- References: <20050513165658.21553.roche@adacore.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-05-13 22:53 -------
If I read the docs correctly it says you have to add -B. to the invocation.
See PR 19856 and 14435.
Reference from the docs:
In addition, the prefix is used in an unusual way in finding the directories to search for header files. For
each of the standard directories whose name normally begins with /usr/local/lib/gcc (more precisely,
with the value of GCC_INCLUDE_DIR), GCC tries replacing that beginning with the specified prefix to
produce an alternate directory name. Thus, with -Bfoo/, GCC will search foo/bar where it would
normally search /usr/local/lib/bar. These alternate directories are searched first; the standard
directories come next.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21553