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Date: Wed, 26 Feb 2003 14:36:00 -0000
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Cc: gcc-prs@gcc.gnu.org,
From: "John Hughes" <john@Calva.COM>
Subject: Re: target/9603: SCO 5 build of gcc-3.2.2 fails with i386.c: line 927: error: undefined symbol: DEFAULT_PCC_STRUCT_RETURN
Reply-To: "John Hughes" <john@Calva.COM>
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The following reply was made to PR target/9603; it has been noted by GNATS.

From: "John Hughes" <john@Calva.COM>
To: <gcc-gnats@gcc.gnu.org>, <gcc-bugs@gcc.gnu.org>, <nobody@gcc.gnu.org>,
   <william@nscs.fast.net>, <gcc-prs@gcc.gnu.org>
Cc: <michaud.bernard@ic.gc.ca>
Subject: Re: target/9603: SCO 5 build of gcc-3.2.2 fails with i386.c: line 927: error: undefined symbol: DEFAULT_PCC_STRUCT_RETURN
Date: Wed, 26 Feb 2003 15:32:50 +0100

 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=g
 cc&pr=9603
 
 and
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=g
 cc&pr=9583 
 
 This bug is also present on UnixWare 7.1.1 (aka svr5) and
 I'd guess all other versions of svr4.
 
 It's still present in the 2003/02/24 snapshot of 3.3.
 
 For svr4 systems the fix is:
 
 --- gcc-20030224/gcc/config/i386/sysv4.h.orig   Sun Jun 16 23:13:11 2002
 +++ gcc-20030224/gcc/config/i386/sysv4.h        Wed Feb 26 14:35:08 2003
 @@ -23,6 +23,14 @@
  
  #define TARGET_VERSION fprintf (stderr, " (i386 System V Release 4)");
  
 +#if 0
 +
 +/* i386.h says:
 +
 +   Do not use this macro to indicate that structures and unions
 +   should always be returned in memory.  You should instead use
 +   `DEFAULT_PCC_STRUCT_RETURN' to indicate this.  */
 +
  /* The svr4 ABI for the i386 says that records and unions are returned
     in memory.  */
  
 @@ -30,6 +38,12 @@
  #define RETURN_IN_MEMORY(TYPE) \
    (TYPE_MODE (TYPE) == BLKmode \
     || (VECTOR_MODE_P (TYPE_MODE (TYPE)) && int_size_in_bytes (TYPE) ==
 8))
 +
 +#else
 +
 +#define DEFAULT_PCC_STRUCT_RETURN 1
 +
 +#endif
  
  /* Output at beginning of assembler file.  */
  /* The .file command should always begin the output.  */