More parallel make testsuite fixes.

[Ralf Wildenhues]

Automake does not explicitly add dependencies for -dlopen and -dlpreopen
libs.  Also, Automake-generated makefiles are not safe for
  make -j all check

(and other combinations of toplevel targets).  This is difficult to fix
within Automake without incurring quite a bit of redundancy; so ...

This patch fixes these omissions in Libtool's testsuite.  Applied to
master.

FWIW, while testing with Debian package pmake (which is a variant of BSD
make) I found a bug in its parallel build mode in conjunction with VPATH
described here: <http://bugs.debian.org/494860>.
This is exposed with the $(srcdir)/libltdl/stamp-mk rule in the toplevel
Makefile of Libtool.

Cheers,
Ralf

2008-08-12  Ralf Wildenhues  <address@hidden>

        Parallel make testsuite fixes.
        * tests/configure-iface.at (installable libltdl)
        (--with-ltdl-include/lib, --with-included-ltdl): Add dlopened
        libmodule.la to main_DEPENDENCIES.
        * tests/old-m4-iface.at (AC_WITH_LTDL): Likewise, let ltdldemo
        depend upon module.la and libltdl/libltdlc.la.
        * tests/testsuite.at (LT_AT_MAKE): Invoke each target in turn,
        default to 'all'.
        * tests/early-libtool.at (config.lt): Define 'all' target.

diff --git a/tests/configure-iface.at b/tests/configure-iface.at
index 5e33eca..38e7824 100644
--- a/tests/configure-iface.at
+++ b/tests/configure-iface.at
@@ -132,7 +132,7 @@ libmodule_la_LDFLAGS        = -module
 bin_PROGRAMS           = main
 main_LDFLAGS           = -dlopen libmodule.la
 main_LDADD             = $(LIBLTDL)
-main_DEPENDENCIES      = $(LTDLDEPS)
+main_DEPENDENCIES      = $(LTDLDEPS) libmodule.la
 ]])
 
 # Install everything!
@@ -201,7 +201,7 @@ libmodule_la_LDFLAGS        = -module
 bin_PROGRAMS           = main
 main_LDFLAGS           = -dlopen libmodule.la
 main_LDADD             = $(LIBLTDL)
-main_DEPENDENCIES      = $(LTDLDEPS)
+main_DEPENDENCIES      = $(LTDLDEPS) libmodule.la
 ]])
 
 # We don't use 'libtoolize --ltdl', so that we get an error if the test
@@ -255,7 +255,7 @@ libmodule_la_LDFLAGS        = -module
 bin_PROGRAMS           = main
 main_LDFLAGS           = -dlopen libmodule.la
 main_LDADD             = $(LIBLTDL)
-main_DEPENDENCIES      = $(LTDLDEPS)
+main_DEPENDENCIES      = $(LTDLDEPS) libmodule.la
 ]])
 
 LT_AT_BOOTSTRAP([--ltdl], [-I libltdl/m4], [], [--add-missing], [],
diff --git a/tests/early-libtool.at b/tests/early-libtool.at
index 74d3a84..75e26a2 100644
--- a/tests/early-libtool.at
+++ b/tests/early-libtool.at
@@ -168,6 +168,8 @@ LDFLAGS = @LDFLAGS@
 COMPILE = $(CC) $(CPPFLAGS) $(CFLAGS) $(DEFAULT_INCLUDES)
 LINK = $(LIBTOOL) --mode=link --tag=CC $(CC) $(CFLAGS) $(LDFLAGS) -o $@
 
+all: hell$(EXEEXT)
+
 hell$(EXEEXT): main.$(OBJEXT) libhello.la
        $(LINK) main.$(OBJEXT) libhello.la
 
diff --git a/tests/old-m4-iface.at b/tests/old-m4-iface.at
index f36f97f..3365a2a 100644
--- a/tests/old-m4-iface.at
+++ b/tests/old-m4-iface.at
@@ -137,7 +137,7 @@ libltdl/libltdlc.la:
 module.la: module.lo
        $(LTLINK) module.lo -module -avoid-version -rpath /dev/null
 
address@hidden@: address@hidden@
address@hidden@: address@hidden@ module.la libltdl/libltdlc.la
        $(LTLINK) address@hidden@ -dlopen module.la @LIBLTDL@
 
 .SUFFIXES:
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 4dfc4ab..7a3b01d 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -152,7 +152,10 @@ m4_define([LT_AT_CONFIGURE],
 # --------------------------
 m4_define([LT_AT_MAKE],
 [( $unset LIBTOOL LIBTOOLIZE
-   AT_CHECK([$MAKE $1 $2], [0], [ignore], [ignore]) )
+  for target in m4_default([$1], [all])
+  do
+    AT_CHECK([$MAKE $target $2], [0], [ignore], [ignore])
+  done )
 ])