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"make bubblestrap" weirdness

From: Kelley Cook <kcook at gcc dot gnu dot org>
To: Ranjit Mathew <rmathew at gmail dot org>, GCC Mailing List <gcc at gcc dot gnu dot org>
Date: Wed, 12 Jan 2005 12:42:07 -0500
Subject: "make bubblestrap" weirdness
Hop-count: 1
References: <cs3210$sp4$1@sea.gmane.org>

In recent CVS checkouts of GCC mainline, I have noticed a
weird bootstrapping issue. The steps are:

  1. make bootstrap
  2. touch $GCC_SRC_DIR/gcc/java/check-init.c
  3. make bubblestrap
  4. touch $GCC_SRC_DIR/gcc/java/check-init.c
  5. make bubblestrap

In step #3, I see "genattrab" and other "gen*" programs
running once again, while in #5 (and subsequent such
iterations) they don't. I have seen this on two separate
x86-Linux boxen.

It seems that you've discovered a regression from 3.4. Unfortunately, it likely is related to my moving the GCC build executables into a build/ directory.

Please create a new PR and feel free to assign it to me <kcook@gcc.gnu.org>.

Follow-Ups:
- Re: "make bubblestrap" weirdness
  - From: Kelley Cook

References:
- "make bubblestrap" weirdness
  - From: Ranjit Mathew

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