Apply patch from Philip Blundel to fix a few ARM/Linux nits.

From-SVN: r26083

gcc/ChangeLog

+Tue Mar 30 10:43:49 1999  Philip Blundell  <pb@nexus.co.uk>
+
+	* config/arm/aout.h (DBX_DEBUGGING_INFO): Avoid redefinition if
+	dbxelf.h was previously included.
+	(CPP_APCS_PC_DEFAULT_SPEC): No need to undefine.
+	
+	* config/arm/linux-elf.h (FP_DEFAULT): Correctly override the
+	definition from arm.h.
+
 Wed Mar 31 10:33:37 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
         * Makefile.in (c-gperf.h): Generate using gperf language 'C', not

gcc/config/arm/aout.h

@@ -107,7 +107,9 @@ Boston, MA 02111-1307, USA.  */
 
 /* Generate DBX debugging information.  riscix.h will undefine this because
    the native assembler does not support stabs. */
+#ifndef DBX_DEBUGGING_INFO
 #define DBX_DEBUGGING_INFO  1
+#endif
 
 /* Acorn dbx moans about continuation chars, so don't use any.  */
 #ifndef DBX_CONTIN_LENGTH

gcc/config/arm/linux-elf.h

@@ -87,12 +87,7 @@ Boston, MA 02111-1307, USA.  */
 -Amachine(arm) -D__ELF__ -Darm_elf"
 
 #ifndef SUBTARGET_DEFAULT_APCS26
-#undef  CPP_APCS_PC_DEFAULT_SPEC
 #define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
-/* On 32-bit machine it is always safe to assume we have the "new"
-   floating point system.  */
-#undef  FP_DEFAULT
-#define FP_DEFAULT FP_SOFT3
 #endif
 
 /* Allow #sccs in preprocessor.  */
@@ -240,3 +235,11 @@ const_section ()							\
 
 #include "arm/elf.h"
 #include "arm/linux-gas.h"
+
+#ifndef SUBTARGET_DEFAULT_APCS26
+/* On 32-bit machine it is always safe to assume we have the "new"
+   floating point system.  
+   ?? Make this happen for all targets when NWFPE is better established.  */
+#undef  FP_DEFAULT
+#define FP_DEFAULT FP_SOFT3
+#endif