Re: Failed to build libgcj / proplem with libtool

[Alexandre Oliva <aoliva at redhat dot com>]

On Sep 12, 2000, Alexandre Oliva <aoliva@redhat.com> wrote:

> On Sep 11, 2000, Bryce McKinlay <bryce@albatross.co.nz> wrote:
>> Michael Scheuner wrote:
>>> Hi,
>>> 
>>> when trying to build the latest CVS-libgci (2000/09/10), make exits with the
>>> following:
>>> 
>>> make[2]: Entering directory `/usr/src/libgcj-build/i686-pc-linux-gnu/libjava'
>>> /bin/sh ./libtool --mode=compile gcj -fassume-compiled
>>> -fclasspath=/usr/src/libgcj-build/i686-pc-linux-gnu/libjava
>>> -L/usr/src/libgcj-build/i686-pc-linux-gnu/libjava -g   -ffloat-store -c -o
>>> gnu/gcj/convert/BytesToUnicode.lo
>>> ../../../libgcj/libjava/gnu/gcj/convert/BytesToUnicode.java
>>> libtool: compile: unable to infer tagged configuration
>>> libtool: compile: specify a tag with `--tag'

>> I got this too. It looks like there might be a problem with the new
>> multi-language libtool that was installed today.

> Remove config.cache from the target directory and get config.status to
> be re-run in the libjava directory.  The problem should go away.

Scratch that.  The problem was caused by one of those last-minute
changes that shouldn't cause any problem, but do :-(

I used to use AM_PROG_GCJ in libjava/configure.in, and libtool.m4
correctly detected its use and triggered the rule to add a gcj
configuration to libtool.  However, in the last minute, I switched to
LT_AC_PROG_GCJ, that is an (almost) equivalent libtool macro, but it
turned out that it wasn't auto-detected :-(

Here's a patch that fixes this problem.  I'm checking it in along with
an updated libjava/configure.

Sorry about the trouble, once again :-(

Index: libtool.m4
===================================================================
RCS file: /cvs/java/libgcj/libtool.m4,v
retrieving revision 1.1
diff -u -p -r1.1 libtool.m4
--- libtool.m4 2000/09/10 07:36:46 1.1
+++ libtool.m4 2000/09/12 06:43:24
@@ -37,12 +37,17 @@ dnl AC_LIBTOOL_GCJ immediately, otherwis
     [AC_LIBTOOL_GCJ],
     [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
         [AC_LIBTOOL_GCJ],
+	[AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],
+	  [AC_LIBTOOL_GCJ],
 	[ifdef([AC_PROG_GCJ],
 	       [define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[AC_LIBTOOL_GCJ
 ])])
 	 ifdef([A][M_PROG_GCJ],
 	       [define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[AC_LIBTOOL_GCJ
-])])])])])
+])])
+	 ifdef([LT_AC_PROG_GCJ],
+	       [define([LT_AC_PROG_GCJ], defn([LT_AC_PROG_GCJ])[AC_LIBTOOL_GCJ
+])])])])])])
 
 AC_DEFUN(_AC_PROG_LIBTOOL,
 [AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
@@ -788,9 +793,10 @@ AC_DEFUN(_AC_LIBTOOL_GCJ,
 [AC_REQUIRE([AC_PROG_LIBTOOL])
 AC_PROVIDE_IFELSE([AC_PROG_GCJ],[],
   [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],[],
-    [ifdef([AC_PROG_GCJ],[AC_REQUIRE([AC_PROG_GCJ])],
-       [ifdef([A][M_PROG_GCJ],[AC_REQUIRE([A][M_PROG_GCJ])],
-         [AC_REQUIRE([A][C_PROG_GCJ_OR_A][M_PROG_GCJ])])])])])
+    [AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],[],
+      [ifdef([AC_PROG_GCJ],[AC_REQUIRE([AC_PROG_GCJ])],
+         [ifdef([A][M_PROG_GCJ],[AC_REQUIRE([A][M_PROG_GCJ])],
+           [AC_REQUIRE([A][C_PROG_GCJ_OR_A][M_PROG_GCJ])])])])])])
 LIBTOOL_DEPS=$LIBTOOL_DEPS" $ac_aux_dir/ltcf-gcj.sh"
 lt_save_CC="$CC"
 lt_save_CFLAGS="$CFLAGS"

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist    *Please* write to mailing lists, not to me