gcc.c (init_gcc_specs): Test USE_LD_AS_NEEDED, not HAVE_LD_AS_NEEDED.

	* gcc.c (init_gcc_specs): Test USE_LD_AS_NEEDED, not HAVE_LD_AS_NEEDED.
	* config/linux.h (USE_LD_AS_NEEDED): Define.
	* gcc/config/alpha/linux.h (USE_LD_AS_NEEDED): Define.
	* gcc/config/arm/linux-elf.h (USE_LD_AS_NEEDED): Define.
	* gcc/config/rs6000/linux.h (USE_LD_AS_NEEDED): Define.
	* gcc/config/rs6000/linux64.h (USE_LD_AS_NEEDED): Define.
	* gcc/config/sh/linux.h (USE_LD_AS_NEEDED): Define.
	* gcc/config/sparc/linux.h (USE_LD_AS_NEEDED): Define.
	* gcc/config/sparc/linux64.h (USE_LD_AS_NEEDED): Define.

From-SVN: r81072

gcc/ChangeLog

+2004-04-23  Alan Modra  <amodra@bigpond.net.au>
+
+	* gcc.c (init_gcc_specs): Test USE_LD_AS_NEEDED, not HAVE_LD_AS_NEEDED.
+	* config/linux.h (USE_LD_AS_NEEDED): Define.
+	* gcc/config/alpha/linux.h (USE_LD_AS_NEEDED): Define.
+	* gcc/config/arm/linux-elf.h (USE_LD_AS_NEEDED): Define.
+	* gcc/config/rs6000/linux.h (USE_LD_AS_NEEDED): Define.
+	* gcc/config/rs6000/linux64.h (USE_LD_AS_NEEDED): Define.
+	* gcc/config/sh/linux.h (USE_LD_AS_NEEDED): Define.
+	* gcc/config/sparc/linux.h (USE_LD_AS_NEEDED): Define.
+	* gcc/config/sparc/linux64.h (USE_LD_AS_NEEDED): Define.
+
 2004-04-22  Per Bothner  <per@bothner.com>
 
 	* cppinit.c (cpp_read_main_file):  Return NULL rather than false.

gcc/config/alpha/linux.h

 /* Definitions of target machine for GNU compiler,
    for Alpha Linux-based GNU systems.
-   Copyright (C) 1996, 1997, 1998, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 2002, 2003, 2004
+   Free Software Foundation, Inc.
    Contributed by Richard Henderson.
 
 This file is part of GCC.
@@ -70,6 +71,11 @@ Boston, MA 02111-1307, USA.  */
 #define LINK_GCC_C_SEQUENCE_SPEC \
   "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
 
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif
+
 /* Do code reading to identify a signal frame, and set the frame
    state data appropriately.  See unwind-dw2.c for the structs.  */
 

gcc/config/arm/linux-elf.h

@@ -126,3 +126,8 @@
 
 #define LINK_GCC_C_SEQUENCE_SPEC \
   "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
+
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif

gcc/config/linux.h

 /* Definitions for Linux-based GNU systems with ELF format
-   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003
+   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003, 2004
    Free Software Foundation, Inc.
    Contributed by Eric Youngdale.
    Modified for stabs-in-ELF by H.J. Lu (hjl@lucon.org).
@@ -117,6 +117,11 @@ Boston, MA 02111-1307, USA.  */
 #define LINK_GCC_C_SEQUENCE_SPEC \
   "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
 
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif
+
 /* Determine whether the the entire c99 runtime
    is present in the runtime library.  */
 #ifndef USE_GNULIBC_1

gcc/config/rs6000/linux.h

@@ -66,6 +66,11 @@
 #define LINK_GCC_C_SEQUENCE_SPEC \
   "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
 
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif
+
 #undef  TARGET_VERSION
 #define TARGET_VERSION fprintf (stderr, " (PowerPC GNU/Linux)");
 

gcc/config/rs6000/linux64.h

@@ -548,6 +548,11 @@ while (0)
 #define LINK_GCC_C_SEQUENCE_SPEC \
   "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
 
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif
+
 /* Do code reading to identify a signal frame, and set the frame
    state data appropriately.  See unwind-dw2.c for the structs.  */
 

gcc/config/sh/linux.h

@@ -112,6 +112,11 @@ do { \
 #define LINK_GCC_C_SEQUENCE_SPEC \
   "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
 
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif
+
 /* Output assembler code to STREAM to call the profiler.  */
 
 #undef FUNCTION_PROFILER

gcc/config/sparc/linux.h

@@ -256,6 +256,11 @@ do {									\
 #define LINK_GCC_C_SEQUENCE_SPEC \
   "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
 
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif
+
 /* Do code reading to identify a signal frame, and set the frame
    state data appropriately.  See unwind-dw2.c for the structs.  */
 

gcc/config/sparc/linux64.h

@@ -334,6 +334,11 @@ do {									\
 #define LINK_GCC_C_SEQUENCE_SPEC \
   "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
 
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif
+
 /* Do code reading to identify a signal frame, and set the frame
    state data appropriately.  See unwind-dw2.c for the structs.  */
 

gcc/gcc.c

@@ -1543,6 +1543,11 @@ static int processing_spec_function;
    various permutations of -shared-libgcc, -shared, and such.  */
 
 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
+
+#ifndef USE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 0
+#endif
+
 static void
 init_gcc_specs (struct obstack *obstack, const char *shared_name,
 		const char *static_name, const char *eh_name)
@@ -1551,7 +1556,7 @@ init_gcc_specs (struct obstack *obstack, const char *shared_name,
 
   buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name,
 		"}%{!static:%{!static-libgcc:",
-#ifdef HAVE_LD_AS_NEEDED
+#if USE_LD_AS_NEEDED
 		"%{!shared-libgcc:", static_name,
 		" --as-needed ", shared_name, " --no-as-needed}"
 		"%{shared-libgcc:", shared_name, "%{!shared: ", static_name,