recipes/contrib/gnu_build_tools.resources/0001-Make-automake-relocatable.patch

From 9c025c8be43d31cecdb161b942ce3a18fbe786bc Mon Sep 17 00:00:00 2001
From: Petr Hosek <phosek@google.com>
Date: Fri, 31 Jul 2020 00:12:23 -0700
Subject: [PATCH] Make automake relocatable

This is the package definition for the automake tools and includes
a patch to make them relocatable (written against automake 1.16.2).

By default automake hard-codes the --prefix value into the binaries it
deploys, making them unsuitable for relocatable deployment (e.g. with
CIPD). The patch here replaces all the hard-coded paths with either:
  * The assumption that the tool is in $PATH, and so "/path/to/tool" is
    replaced by "tool"
  * The assumption that the data files are relative to the binary being
    run, e.g. if we're running ".../bin/tool" that we can find the data
    files at ".../share/extra_files".

The patch was made by doing `make install` on the base package, looking
for absolute paths and then changing the sources so the absolute paths
no longer showed up in the output of `make install`.
---
 bin/aclocal.in         | 11 ++++++++---
 bin/automake.in        |  4 +++-
 lib/Automake/Config.in |  4 +++-
 3 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/bin/aclocal.in b/bin/aclocal.in
index 9a20325..366805f 100644
--- a/bin/aclocal.in
+++ b/bin/aclocal.in
@@ -21,7 +21,9 @@
 
 BEGIN
 {
-  unshift (@INC, '@datadir@/@PACKAGE@-@APIVERSION@')
+  use File::Basename;
+  my $PREFIX = dirname(dirname(__FILE__));
+  unshift (@INC, "$PREFIX/share/@PACKAGE@-@APIVERSION@")
     unless $ENV{AUTOMAKE_UNINSTALLED};
 }
 
@@ -39,6 +41,9 @@ use File::Path ();
 
 # Some globals.
 
+my $PREFIX = dirname(dirname(__FILE__));
+my $DATADIR = "$PREFIX/share";
+
 # Support AC_CONFIG_MACRO_DIRS also with older autoconf.
 # FIXME: To be removed in Automake 2.0, once we can assume autoconf
 #        2.70 or later.
@@ -62,8 +67,8 @@ $perl_threads = 0;
 # ACLOCAL_PATH environment variable, and reset with the '--system-acdir'
 # option.
 my @user_includes = ();
-my @automake_includes = ('@datadir@/aclocal-' . $APIVERSION);
-my @system_includes = ('@datadir@/aclocal');
+my @automake_includes = ("$DATADIR/aclocal-" . $APIVERSION);
+my @system_includes = ("$DATADIR/aclocal");
 
 # Whether we should copy M4 file in $user_includes[0].
 my $install = 0;
diff --git a/bin/automake.in b/bin/automake.in
index 212cb38..7c2d2a1 100644
--- a/bin/automake.in
+++ b/bin/automake.in
@@ -26,7 +26,9 @@ use strict;
 
 BEGIN
 {
-  unshift (@INC, '@datadir@/@PACKAGE@-@APIVERSION@')
+  use File::Basename;
+  my $PREFIX = dirname(dirname(__FILE__));
+  unshift (@INC, "$PREFIX/share/@PACKAGE@-@APIVERSION@")
     unless $ENV{AUTOMAKE_UNINSTALLED};
 
   # Override SHELL.  This is required on DJGPP so that system() uses
diff --git a/lib/Automake/Config.in b/lib/Automake/Config.in
index f79b8cd..bfaf7ee 100644
--- a/lib/Automake/Config.in
+++ b/lib/Automake/Config.in
@@ -16,6 +16,7 @@
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 package Automake::Config;
+use File::Basename;
 use strict;
 
 use 5.006;
@@ -32,7 +33,7 @@ our $PACKAGE = '@PACKAGE@';
 our $PACKAGE_BUGREPORT = '@PACKAGE_BUGREPORT@';
 our $VERSION = '@VERSION@';
 our $RELEASE_YEAR = '@RELEASE_YEAR@';
-our $libdir = $ENV{"AUTOMAKE_LIBDIR"} || '@datadir@/@PACKAGE@-@APIVERSION@';
+our $libdir = $ENV{"AUTOMAKE_LIBDIR"} || dirname(dirname(__FILE__));
 
 our $perl_threads = 0;
 # We need at least this version for CLONE support.
-- 
2.28.0.163.g6104cc2f0b6-goog