libgfortran Makefile question (using latest libtool)

[Charles Wilson]

> It does not look like this is the default.  I don't see any use of --tag
> in the libtool config output (nor do I see where the -MD, -MP, -MF flags
> are coming from).
> 
> Steve Ellcey
> sje@cup.hp.com
> 
> 
> % ./libtool --config | grep -e LT -e CC -e tag
> 
> LTCC="/proj/opensrc/sje/svn.libtool/build-ia64-hp-hpux11.23-trunk/obj_gcc/./gcc/xgcc -B/proj/opensrc/sje/svn.libtool/build-ia64-hp-hpux11.23-trunk/obj_gcc/./gcc/ -B/proj/opensrc/sje/svn.libtool/gcc-ia64-hp-hpux11.23-trunk/ia64-hp-hpux11.23/bin/ -B/proj/opensrc/sje/svn.libtool/gcc-ia64-hp-hpux11.23-trunk/ia64-hp-hpux11.23/lib/ -isystem /proj/opensrc/sje/svn.libtool/gcc-ia64-hp-hpux11.23-trunk/ia64-hp-hpux11.23/include -isystem /proj/opensrc/sje/svn.libtool/gcc-ia64-hp-hpux11.23-trunk/ia64-hp-hpux11.23/sys-include"
> # LTCC compiler flags.
> LTCFLAGS="-std=gnu99 -O2 -g  -Wunknown-pragmas"
> variables_saved_for_relink="PATH LD_LIBRARY_PATH  GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
> CC="/proj/opensrc/sje/svn.libtool/build-ia64-hp-hpux11.23-trunk/obj_gcc/./gcc/xgcc -B/proj/opensrc/sje/svn.libtool/build-ia64-hp-hpux11.23-trunk/obj_gcc/./gcc/ -B/proj/opensrc/sje/svn.libtool/gcc-ia64-hp-hpux11.23-trunk/ia64-hp-hpux11.23/bin/ -B/proj/opensrc/sje/svn.libtool/gcc-ia64-hp-hpux11.23-trunk/ia64-hp-hpux11.23/lib/ -isystem /proj/opensrc/sje/svn.libtool/gcc-ia64-hp-hpux11.23-trunk/ia64-hp-hpux11.23/include -isystem /proj/opensrc/sje/svn.libtool/gcc-ia64-hp-hpux11.23-trunk/ia64-hp-hpux11.23/sys-include"
> archive_cmds="\$CC -shared \${wl}+h \${wl}\$soname \${wl}+nodefaultrpath -o \$lib \$libobjs \$deplibs \$compiler_flags"

The --tag option is added by automake-1.9 or automake-1.10, but not 1.8:

==== from automake-1.9 =====
             my $libtool_tag = '';
             if ($lang->libtool_tag && exists 
$libtool_tags{$lang->libtool_tag})
               {
                 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
               }

             my $obj_ltcompile =
               "\$(LIBTOOL) $libtool_tag--mode=compile $obj_compile";
==== from automake-1.9 =====


The -MD, -MP, -MF etc also come from automake (but only if FASTDEP), via 
am/depend2.am (since automake-1.7).

My guess is you that libgfortran's Makefile.in was created with an older 
(pre-1.9) version of automake.

--
Chuck