FYI: generate Makefile.am files from bootstrap

[Jim Meyering]

I finally removed the generated Makefile.am files from version control:

  http://git.sv.gnu.org/gitweb/?p=coreutils.git;a=commitdiff;h=893ac688cc

but that means those same files must be generated at bootstrap time,
before automake runs.  Hence the change below.

FWIW, I may change the PERL= assignment to accommodate those
who have perl available only under some other name.  Do any of
you know someone like that?

2007-05-15  Jim Meyering  <address@hidden>

        Generate a dozen test-related Makefile.am files at bootstrap-time.
        * README-hacking: Build-from-checkout now require Perl, too.
        * bootstrap: Now that these generated Makefile.am files are no longer
        under version control, they must be created at bootstrap time.

diff --git a/README-hacking b/README-hacking
index 6a2714a..4ad917a 100644
--- a/README-hacking
+++ b/README-hacking
@@ -16,6 +16,7 @@ tools we depend upon, including:
 - Bison <http://www.gnu.org/software/bison/>
 - Gettext <http://www.gnu.org/software/gettext/>
 - Gzip <http://www.gnu.org/software/gzip/>
+- Perl <http://www.cpan.org/>
 - Tar <http://www.gnu.org/software/tar/>
 - Wget <http://www.gnu.org/software/wget/>

diff --git a/bootstrap b/bootstrap
index 3294085..a387725 100755
--- a/bootstrap
+++ b/bootstrap
@@ -484,6 +484,22 @@ if test $with_gettext = yes; then
   rm -fr $bt $bt2 || exit
 fi

+# Coreutils is unusual in that it generates some of its test-related
+# Makefile.am files.  That must be done before invoking automake.
+PERL=perl
+for tool in cut head join pr sort tac tail test tr uniq wc; do
+  m=tests/$tool/Makefile.am
+  t=${m}t
+  mam_template=tests/Makefile.am.in
+  rm -f $m $t
+  sed -n '1,/^##test-files-begin/p' $mam_template > $t
+  echo "x = $tool" >> $t
+  srcdir=tests/$tool
+  $PERL -I$srcdir -w -- tests/mk-script $srcdir --list >> $t
+  sed -n '/^##test-files-end/,$p' $mam_template >> $t
+  chmod -w $t
+  mv $t $m
+done

 # Reconfigure, getting other files.