[Automake-NG] [FYI] [ng] refactor: move hack for libtool installs from automake to install.am

[Stefano Lattarini]

* automake.in (generate_makefile): Move the hack necessary to make the
installation of libtool libraries and binaries dependent on them work
"on degenerate systems even with make -j" (according to the comments of
the original authors :-) from here ...
* lib/am/install.am: .. to here, with improved comments.

For the origin of the hack we are moving around here, refer to commit
bd4a1d5 of 2000-10-19, "* automake.in (handle_merge_targets): Allow
parallel install with forced relink".

Signed-off-by: Stefano Lattarini <address@hidden>
---
 automake.in       | 10 ----------
 lib/am/install.am | 14 ++++++++++++++
 2 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/automake.in b/automake.in
index 10d03ca..bbdd130 100644
--- a/automake.in
+++ b/automake.in
@@ -6895,16 +6895,6 @@ sub generate_makefile ($$)
   # Special targets "all" and "check".
   handle_all_and_check;
 
-  # FIXME: Gross!
-  if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
-    {
-      $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
-    }
-  if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
-    {
-      $output_rules .= "install-binPROGRAMS: 
install-nobase_libLTLIBRARIES\n\n";
-    }
-
   almost_verbatim ('install');
   handle_clean ($makefile);
   handle_factored_dependencies;
diff --git a/lib/am/install.am b/lib/am/install.am
index 1972905..a87e172 100644
--- a/lib/am/install.am
+++ b/lib/am/install.am
@@ -94,3 +94,17 @@ install-strip:
                INSTALL_STRIP_FLAG=-s \
                $(if $(STRIP),"INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'") \
                install
+
+# Allow parallel install with forced relink.  See commit Automake bd4a1d5
+# of 2000-10-19 for a little more background.
+# FIXME: this is gross, and is debatable how useful and/or needed this
+# workaround still is today.  This is something that should be eventually
+# discussed with the Libtool guys.
+ifdef bin_PROGRAMS
+  ifdef lib_LTLIBRARIES
+    install-binPROGRAMS: install-libLTLIBRARIES
+  endif
+  ifdef nobase_lib_LTLIBRARIES
+    install-binPROGRAMS: install-nobase_libLTLIBRARIES
+  endif
+endif
-- 
1.7.12.rc0