Make libmuaux installable shared library.

This commit converts libmuaux into installable shared library that
includes selected modules from gnulib.  Correspondingly,
lubmu_argp is also converted into installable shared library, which
is the main purpose of these changes.  This should allow other packages
which depend on Mailutils to link against libmu_argp even on systems
that for some reason choose not to include static libraries in their
distribution (vide Debian).  Another side effect is that such packages
won't need to bother about argp being present on the system, as it is
now included in libmuaux.so.

* bootstrap.conf: Don't create Makefile.am
Build gnulib using libtool and use mu_am_flags custom module
* lib/local/modules/mu_am_flags: New file.
* configure.ac (MU_APP_LIBRARIES): Use libmu_argp.la
(TCPWRAP_LIBRARIES): Add libmutcpwrap.a
* lib/Makefile.am: Make libmuaux installable shared library
New static library libmutcpwrap.a
* libmu_argp/Makefile.am: Make libmu_argp installable shared library
* examples/Makefile.am: Use libmu_argp.la
* examples/cpp/Makefile.am: Likewise.
* imap4d/Makefile.am: Likewise.
* mapi/Makefile.am: Likewise.
* mh/Makefile.am: Likewise,
* pop3d/Makefile.am: Likewise.

-# Bootstrap configuration for GNU Mailutils.
+# Bootstrap configuration for GNU Mailutils.     -*- shell-script -*-
 #
 # Copyright (C) 2006-2012, 2014-2015 Free Software Foundation, Inc.
 #
@@ -16,18 +16,11 @@
 # along with GNU Mailutils.  If not, see <http://www.gnu.org/licenses/>.
 
 test -d lib/gnu || mkdir lib/gnu
-test -f lib/gnu/Makefile.am || cat > lib/gnu/Makefile.am <<EOT
-# THIS FILE IS GENERATED AUTOMATICALLY.  PLEASE DO NOT EDIT.
-include gnulib.mk
-AM_CPPFLAGS += @MU_LIB_COMMON_INCLUDES@ -I${top_srcdir}/lib/gnu -I${top_builddir}/lib/gnu
-# Local Variables:
-# buffer-read-only: t
-# End:
-# vi: set ro:
-EOT
 
 gnulib_name=libgnu
+gnulib_mk=Makefile.am
 source_base=lib/gnu
+gnulib_tool_option_extras="--libtool --local-dir=lib/local"
 
 # We don't need these modules, even though gnulib-tool mistakenly
 # includes them because of gettext dependencies.
@@ -37,6 +30,7 @@ avoided_gnulib_modules='
 
 # gnulib modules used by this package.
 gnulib_modules="$avoided_gnulib_modules
+mu_am_flags
 `grep '^[^#]' gnulib.modules`
 "
 

@@ -56,7 +56,7 @@ AC_SUBST(mu_aux_dir,'$(top_srcdir)/mu-aux')
 AC_SUBST(MU_SIEVE_MODDIR,'$(libdir)/$(PACKAGE)')
 
 AC_SUBST(MU_COMMON_LIBRARIES,'$(LTLIBINTL) $(LTLIBICONV)')
-AC_SUBST(MU_APP_LIBRARIES,'../libmu_argp/libmu_argp.a ../libmu_cfg/libmu_cfg.la ../lib/libmuaux.a')
+AC_SUBST(MU_APP_LIBRARIES,'${top_builddir}/libmu_argp/libmu_argp.la ${top_builddir}/libmu_cfg/libmu_cfg.la')
 
 # There are two sets of include directories: MU_LIB_COMMON_INCLUDES, used
 # by the libraries, and MU_APP_COMMON_INCLUDES, which is used by applications.
@@ -220,7 +220,7 @@ esac
 LIBS=$saved_LIBS
 
 if test "$status_tcpwrap" = "yes"; then
-  AC_SUBST(TCPWRAP_LIBRARIES, "$TCPWRAP_LIBRARIES -lwrap")
+  AC_SUBST(TCPWRAP_LIBRARIES, "\${top_builddir}/lib/libmutcpwrap.a $TCPWRAP_LIBRARIES -lwrap")
   AC_DEFINE_UNQUOTED(WITH_LIBWRAP, 1,
                      [Define to 1 to use tcp wrappers.])
 fi
@@ -1157,7 +1157,6 @@ GINT_INIT([gint],[1.8 with-guile],
            LIBMU_SCM_DEPS='${MU_LIB_MBOX} ${MU_LIB_IMAP} ${MU_LIB_POP} ${MU_LIB_MH} ${MU_LIB_MAILDIR} ${MU_LIB_MAILER}'
            MU_GUILE_SIEVE_MOD_DIR='$(GUILE_SITE)/$(PACKAGE)/sieve-modules'
            GINT_INCLUDES='${MU_APP_COMMON_INCLUDES}'
-           GINT_LDADD=../lib/libmuaux.a
           ],[useguile=no])
 
 AM_CONDITIONAL([MU_COND_LIBMU_SCM],[test "$useguile" = "yes"])

@@ -59,7 +59,7 @@ mod_LTLIBRARIES = numaddr.la
 AM_CPPFLAGS = @MU_LIB_COMMON_INCLUDES@ 
 
 LDADD = \
- ../lib/libmuaux.a\
+ ../lib/libmuaux.la\
  ${MU_LIB_MAILUTILS}\
  @MU_COMMON_LIBRARIES@
 
@@ -68,20 +68,20 @@ numaddr_la_LIBADD = ${MU_LIB_SIEVE}
 numaddr_la_LDFLAGS = -module -avoid-version -no-undefined -rpath '$(moddir)'
 
 msg_send_LDADD =\
- ../lib/libmuaux.a\
+ ../lib/libmuaux.la\
  ${MU_LIB_MAILER}\
  @MU_AUTHLIBS@\
  ${MU_LIB_MAILUTILS}
 
 mta_CPPFLAGS=@MU_LIB_COMMON_INCLUDES@ -I${top_srcdir}/lib -I${top_builddir}/lib
 mta_LDADD =\
- ../lib/libmuaux.a\
+ ../lib/libmuaux.la\
  ${MU_LIB_MBOX}\
  ${MU_LIB_MAILER}\
  ${MU_LIB_MAILUTILS}
 
 sfrom_LDADD =\
- ../lib/libmuaux.a\
+ ../lib/libmuaux.la\
  ${MU_LIB_MBOX}\
  ${MU_LIB_IMAP}\
  ${MU_LIB_POP}\
@@ -93,7 +93,7 @@ sfrom_LDADD =\
  ${MU_LIB_MAILUTILS}
 
 nntpclient_LDADD = \
- ../lib/libmuaux.a\
+ ../lib/libmuaux.la\
  ${MU_LIB_NNTP}\
  ${MU_LIB_AUTH}\
  @MU_AUTHLIBS@\
@@ -125,7 +125,7 @@ muemail_LDADD = \
 
 mboxidx_CPPFLAGS = @MU_APP_COMMON_INCLUDES@
 mboxidx_LDADD=\
- ../lib/libmuaux.a\
+ ../lib/libmuaux.la\
  ${MU_LIB_MBOX}\
  ${MU_LIB_IMAP}\
  ${MU_LIB_POP}\

@@ -34,7 +34,7 @@ noinst_PROGRAMS = @MU_CXX_EXAMPLES_BUILD@
 AM_CPPFLAGS = @MU_LIB_COMMON_INCLUDES@ 
 
 AM_LDFLAGS = \
- ../../lib/libmuaux.a\
+ ../../lib/libmuaux.la\
  ../../libmu_cpp/libmu_cpp.la\
  ${MU_LIB_MAILUTILS}\
  @MU_COMMON_LIBRARIES@
@@ -52,7 +52,7 @@ sfrom_SOURCES = sfrom.cc
 url_parse_SOURCES = url-parse.cc
 
 LDADD =\
- ../../lib/libmuaux.a\
+ ../../lib/libmuaux.la\
  ../../libmu_cpp/libmu_cpp.la\
  ${MU_LIB_MBOX}\
  ${MU_LIB_IMAP}\

@@ -87,6 +87,6 @@ imap4d_LDADD = \
 ## Think about better approach         --gray
 imap4d_DEPENDENCIES = \
  @MU_AUTHLIBS_DEPENDENCY@\
- ../lib/libmuaux.a\
+ ../lib/libmuaux.la\
  ${MU_LIB_MBOX}\
  ${MU_LIB_MAILUTILS}

@@ -24,19 +24,21 @@ AM_CPPFLAGS = \
  @GUILE_INCLUDES@\
  @PYTHON_INCLUDES@
 
-noinst_LIBRARIES = libmuaux.a libmuscript.a
-libmuaux_a_SOURCES = \
+lib_LTLIBRARIES = libmuaux.la
+noinst_LIBRARIES = libmuscript.a libmutcpwrap.a
+
+libmuaux_la_SOURCES = \
  argp_base.c\
  daemon.c\
  mailcap.c\
  manlock.c\
  signal.c\
  strexit.c\
- tcpwrap.c\
  mu_umaxtostr.c\
  mu_umaxtostr.h
-libmuaux_a_LIBADD=gnu/*.o
-#libmuaux_a_LIBADD=`$(AR) t gnu/libgnu.a | sed s.^.gnu/.`
+libmuaux_la_LIBADD=gnu/libgnu.la
+
+libmutcpwrap_a_SOURCES = tcpwrap.c
 
 noinst_HEADERS =\
  mailcap.h\

+Description:
+This file provides additional Makefile statements for building gnulib as part
+of libmuaux.
+
+Files:
+
+Makefile.am:
+AM_CPPFLAGS += @MU_LIB_COMMON_INCLUDES@ -I${top_srcdir}/lib/gnu -I${top_builddir}/lib/gnu
+
+License:
+LGPL
+
+Maintainer:
+Sergey Poznyakoff

@@ -23,9 +23,9 @@ AM_CPPFLAGS = \
  -DSITE_VIRTUAL_PWDDIR=\"@SITE_VIRTUAL_PWDDIR@\"\
  -DSITE_CRAM_MD5_PWD=\"@SITE_CRAM_MD5_PWD@\"
 
-lib_LIBRARIES = libmu_argp.a
+lib_LTLIBRARIES = libmu_argp.la
 
-libmu_argp_a_SOURCES =\
+libmu_argp_la_SOURCES =\
  cmdline.c\
  cmdline.h\
  common.c\
@@ -33,3 +33,4 @@ libmu_argp_a_SOURCES =\
  muinit.c\
  sieve.c
 
+libmu_argp_la_LDFLAGS=-L${top_builddir}/lib -lmuaux

@@ -24,7 +24,7 @@ lib_LTLIBRARIES = libmapi.la
 /* FIXME:  This should be part of the default includes.  */
 EXTRA_DIST = mapi.h
 
-libmapi_LDADD = ../lib/libmuaux.a ${MU_LIB_MAILUTILS} 
+libmapi_LDADD = ../lib/libmuaux.la ${MU_LIB_MAILUTILS} 
 
 libmapi_la_SOURCES = \
  MAPIAddress.c \

@@ -106,7 +106,7 @@ AM_CPPFLAGS =\
 
 mh_LIBS = \
  ./libmh.a\
- ../lib/libmuaux.a\
+ ../lib/libmuaux.la\
  ${MU_LIB_MBOX}\
  ${MU_LIB_IMAP}\
  ${MU_LIB_POP}\
@@ -127,7 +127,7 @@ AM_YFLAGS=-vt
 
 inc_LDADD = \
  ./libmh.a\
- ../lib/libmuaux.a\
+ ../lib/libmuaux.la\
  ../lib/libmuscript.a\
  @LIBMU_SCM@ @GUILE_LIBS@\
  @LIBMU_SCM_DEPS@\

@@ -73,7 +73,7 @@ popauth_LDADD = \
 
 pop3d_DEPENDENCIES = \
  @MU_AUTHLIBS_DEPENDENCY@ \
- ../lib/libmuaux.a \
+ ../lib/libmuaux.la \
  ${MU_LIB_MBOX}\
  ${MU_LIB_MH}\
  ${MU_LIB_MAILDIR}\