c/6799: #pragma weak no longer works<synopsis of the problem (one line)>

c/6799: #pragma weak no longer works<synopsis of the problem (one line)>

[j.w.c.a. lokin]

>Number:         6799
>Category:       c
>Synopsis:       #pragma weak no longer works
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          wrong-code
>Submitter-Id:   net
>Arrival-Date:   Fri May 24 05:56:02 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Jan Willem Lokin
>Release:        3.1
>Organization:
Thales Nederland BV
>Environment:
System: SunOS sunc1185 5.6 Generic_105181-16 sun4u sparc SUNW,Ultra-60
Architecture: sun4

	
host: sparc-sun-solaris2.6
build: sparc-sun-solaris2.6
target: sparc-sun-solaris2.6
configured with: ../configure --prefix=/home/db693/tstgnu
>Description:
	
Prior versions of gcc used to generate the appropriate weak
symbol `main' for the following code snippet:

>How-To-Repeat:
	

in a file weak.c:

static int spliced_main (int argc, char **argv)
{
  return 1;
}

#pragma weak main = sp_spliced_main
int sp_spliced_main (int argc, char **argv)
{
  return spliced_main (argc, argv);
}
EOF

compile with:
gcc weak.c -o weak
Undefined                       first referenced
 symbol                             in file
main                                /home/db693/tstgnu/lib/gcc-lib/sparc-sun-solaris2.6/3.1/crt1.o
ld: fatal: Symbol referencing errors. No output written to weak
collect2: ld returned 1 exit status


>Fix:
	
Probably could use `weak' attribute?
(this email must mandatorily contain the word Unclassified)
>Release-Note:
>Audit-Trail:
>Unformatted: