branch master updated: bootstrap: don't reset config-h.in timestamp newer than configure

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     new e602d877 bootstrap: don't reset config-h.in timestamp newer than configure
e602d877 is described below

commit e602d877f6dda901fedf828455f1b73b78eb1437
Author: Mike Frysinger <[email protected]>
AuthorDate: Thu Jan 18 00:19:05 2024 -0500

    bootstrap: don't reset config-h.in timestamp newer than configure
    
    Various autotools rules will compare the timestamps of config-h.in
    and configure, and if config-h.in is newer than configure, attempt
    to regenerate it.  This breaks `make distcheck` which we need to
    produce new releases.  So update config-h.in timestamp, but only
    up to the configure file.
    
    The breakage is caught because distcheck makes source dirs read-only
    before running.
    
    $ make distcheck
    ...
    make[3]: Entering directory '.../libtool-2.4.7.62-7132f/_build/sub'
      GEN      ../../libltdl/configure
    autom4te-2.72: error: cannot create autom4te.cache in .../libtool-2.4.7.62-7132f/libltdl: Permission denied
    make[3]: *** [Makefile:2411: ../../libltdl/configure] Error 1
    
    * bootstrap.conf (libtool_fudge_timestamps): Set config-h.in timestamp
    to configure.
---
 bootstrap.conf | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/bootstrap.conf b/bootstrap.conf
index 808321a0..85ac3ee1 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -269,12 +269,17 @@ func_add_hook func_fini libtool_readme_release_package_substitutions
 # are updated.  Unfortunately config-h.in depends on aclocal.m4, which
 # *is* updated, so running 'libtoolize --ltdl=. && configure && make'
 # causes autoheader to be called... undesirable for users that do not
-# have it!  Fudge the timestamp to prevent that:
+# have it!  Fudge the timestamp to prevent that.  But only fudge it as
+# much as configure since configure depends on config-h.in and we don't
+# want to require autoconf either.
 libtool_fudge_timestamps ()
 {
     $debug_cmd
 
-    sleep 2 && touch libltdl/config-h.in
+    (
+    cd libltdl
+    touch -r configure config-h.in
+    )
 }
 func_add_hook func_fini libtool_fudge_timestamps