Support for pre-BFD versions of Linux ld.

From-SVN: r9508

gcc/config/i386/linux-oldld.h

+/* Definitions for Intel 386 running Linux with pre-BFD a.out linkers
+   Copyright (C) 1995 Free Software Foundation, Inc.
+   Contributed by Michael Meissner (meissner@cygnus.com)
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* This is tested by i386/gas.h.  */
+#define YES_UNDERSCORES
+
+#include "i386/gstabs.h"
+#include "linux-aout.h"	/* some common stuff */
+
+/* Specify predefined symbols in preprocessor.  */
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES "-Dunix -Di386 -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(i386) -Amachine(i386)"
+
+#undef CPP_SPEC
+#if TARGET_CPU_DEFAULT == 2
+#define CPP_SPEC "%{!m386:-D__i486__} %{posix:-D_POSIX_SOURCE}"
+#else
+#define CPP_SPEC "%{m486:-D__i486__} %{posix:-D_POSIX_SOURCE}"
+#endif
+
+#undef SIZE_TYPE
+#define SIZE_TYPE "unsigned int"
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "int"
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "long int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE BITS_PER_WORD
+
+/* Don't default to pcc-struct-return, because gcc is the only compiler,
+   and we want to retain compatibility with older gcc versions.  */
+#define DEFAULT_PCC_STRUCT_RETURN 0
+
+#undef LIB_SPEC
+
+#if 1
+/* We no longer link with libc_p.a or libg.a by default. If you
+ * want to profile or debug the Linux C library, please add
+ * -lc_p or -ggdb to LDFLAGS at the link time, respectively.
+ */
+#define LIB_SPEC \
+"%{mieee-fp:-lieee} %{p:-lgmon} %{pg:-lgmon} %{!ggdb:-lc} %{ggdb:-lg}"
+#else    
+#define LIB_SPEC \
+"%{mieee-fp:-lieee} %{p:-lgmon -lc_p} %{pg:-lgmon -lc_p} \
+ %{!p:%{!pg:%{!g*:-lc} %{g*:-lg -static}}}" 
+#endif
+
+
+#undef LINK_SPEC
+#define LINK_SPEC ""
+
+/* Get perform_* macros to build libgcc.a.  */
+#include "i386/perform.h"