Make-lang.in (jvspec.o): Add DRIVER_DEFINES to the list of macros used when compiling jvspec.c.

gcc/java:
        * Make-lang.in (jvspec.o): Add DRIVER_DEFINES to the list
        of macros used when compiling jvspec.c.
        * jvspec.c (lang_specific_driver): Link with the shared
        libgcc by default.

libjava:
        * libgcj.spec.in: Don't force static libgcc into the executable.
        * configure.in (FORCELIBGCCSPEC): Removed.

From-SVN: r39449

gcc/java/ChangeLog

+2001-02-04  Bryce McKinlay  <bryce@albatross.co.nz>
+
+	* Make-lang.in (jvspec.o): Add DRIVER_DEFINES to the list
+	of macros used when compiling jvspec.c.
+	* jvspec.c (lang_specific_driver): Link with the shared
+	libgcc by default.
+
 Sun Feb  4 15:52:44 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
 	* check-init.c (check_init): Call internal_error instead of fatal.

gcc/java/Make-lang.in

@@ -61,7 +61,7 @@ JAVA_TARGET_INDEPENDENT_BIN_TOOLS = gcjh jv-scan jcf-dump
 .PHONY: java
 
 jvspec.o: $(srcdir)/java/jvspec.c system.h $(GCC_H) $(CONFIG_H)
-	$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) \
+	$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(DRIVER_DEFINES) \
 		$(INCLUDES) $(srcdir)/java/jvspec.c $(OUTPUT_OPTION)
 
 # Create the compiler driver for $(GCJ).

gcc/java/jvspec.c

  /* Specific flags and argument handling of the front-end of the 
    GNU compiler for the Java(TM) language.
-   Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -44,6 +44,9 @@ static char *find_spec_file	PARAMS ((const char *));
 static const char *main_class_name = NULL;
 int lang_specific_extra_outfiles = 0;
 
+/* True if we should add -shared-libgcc to the command-line.  */
+int shared_libgcc = 1;
+
 /* Once we have the proper support in jc1 (and gcc.c) working,
    set COMBINE_INPUTS to one.  This enables combining multiple *.java
    and *.class input files to be passed to a single jc1 invocation. */
@@ -305,6 +308,9 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
 	      will_link = 0;
 	      continue;
 	    }
+          else if (strcmp (argv[i], "-static-libgcc") == 0
+                   || strcmp (argv[i], "-static") == 0)
+	    shared_libgcc = 0;
 	  else
 	    /* Pass other options through.  */
 	    continue;
@@ -394,6 +400,14 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
     num_args++;
   num_args++;
 
+  /* There's no point adding -shared-libgcc if we don't have a shared
+     libgcc.  */
+#ifndef ENABLE_SHARED_LIBGCC
+  shared_libgcc = 0;
+#endif  
+  
+  num_args += shared_libgcc;
+
   arglist = (const char **) xmalloc ((num_args + 1) * sizeof (char *));
 
   for (i = 0, j = 0; i < argc; i++, j++)
@@ -486,6 +500,9 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
 #endif
     }
   
+  if (shared_libgcc)
+    arglist[j++] = "-shared-libgcc";
+
   arglist[j] = NULL;
 
   *in_argc = j;

libjava/ChangeLog

+2001-02-03  Bryce McKinlay  <bryce@albatross.co.nz>
+
+	* libgcj.spec.in: Don't force static libgcc into the executable.
+	* configure.in (FORCELIBGCCSPEC): Removed.
+	* configure: Rebuilt.
+
 2001-01-31  Tom Tromey  <tromey@redhat.com>
 
 	* Makefile.in: Rebuilt.

libjava/configure.in

@@ -102,12 +102,6 @@ if test "$libgcj_sjlj" = yes; then
    AC_DEFINE(SJLJ_EXCEPTIONS)
 fi
 
-FORCELIBGCCSPEC=
-dnl Work around libgcc design flaw.
-if test "$ac_cv_prog_gnu_ld" = yes; then
-   FORCELIBGCCSPEC="-u __rethrow -u __frame_state_for -lgcc"
-fi   
-
 AC_MSG_CHECKING([for data_start])
 LIBDATASTARTSPEC=
 NEEDS_DATA_START=
@@ -630,7 +624,6 @@ AC_SUBST(ZDEPS)
 AC_SUBST(ZINCS)
 AC_SUBST(DIVIDESPEC)
 AC_SUBST(EXCEPTIONSPEC)
-AC_SUBST(FORCELIBGCCSPEC)
 
 AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
 AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)

libjava/libgcj.spec.in

@@ -9,10 +9,8 @@
 *jc1:  @DIVIDESPEC@ @EXCEPTIONSPEC@ @JC1GCSPEC@ -fasynchronous-exceptions
 
 #
-# libgcc should really be a shared library.  This is a design flaw
-# that causes no end of mysterious problems.  If we are using the
-# GNU linker, force parts of libgcc into the program file rather
-# than picking bits up from various shared libraries.
+# On some systems we force in a data_start symbol so that the GC will work
+# with shared libraries.
 # 
 %rename startfile startfileorig
-*startfile: %(startfileorig) @LIBDATASTARTSPEC@ @FORCELIBGCCSPEC@
+*startfile: %(startfileorig) @LIBDATASTARTSPEC@