c/1490: gcc's invaild option : -mno-486

[fsl at citiz dot net]

>Number:         1490
>Category:       c
>Synopsis:       gcc's invaild option : -mno-486
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    unassigned
>State:          open
>Class:          mistaken
>Submitter-Id:   net
>Arrival-Date:   Thu Dec 21 07:56:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     gyc
>Release:        2.95.2
>Organization:
>Environment:
i586
RedHat 5.1
Kernel 2.2.17
>Description:
RedHat 5.x
Kernel 2.2.17

gcc can't compile with -mno-486 :
	gcc -mno-486 cfile
output:
	cc1: Invalid option `no-486'

gcc version
root@gyc#~>gcc --version
2.95.2

first is mozilla
Mozilla(Netscape 5)
root@gyc#/usr/local/src/mozilla>make 
...
gcc -o Linux2.2.17_x86_DBG.OBJ/nsinstall.o -c -DXP_UNIX -g -ansi -Wall -pipe -DLINUX -Dlinux -DLINUX1_2 -mno-486 -Di386 -D_POSIX_SOURCE -D_BSD_SOURCE -DSW_THREADS -DNEED_ENDIAN_H -DNEED_GETOPT_H -DNEED_IOCTL_H -DUSE_NODL_TABS -DHAVE_SIGNED_CHAR -DNEED_SYS_TIME_H -DHAVE_SYS_BITYPES_H -DNEED_UINT_T -DNEED_TIME_R -DMITSHM -D_XOPEN_SOURCE -D_PR_LOCAL_THREADS_ONLY -DHAVE_STRERROR  -DDEBUG -UNDEBUG -DDEBUG_root -DTRACING -DNSPR20 -DNETSCAPE -DOSTYPE=\"Linux2.2\" -DMOZILLA_CLIENT -DLAYERS -DUNIX_LDAP -DNSPR -DMOCHA -DUNIX_ASYNC_DNS -DDEVELOPER_DEBUG   -I../include   -I/usr/X11R6/include -I../dist/Linux2.2.17_x86_DBG.OBJ/include   nsinstall.c
cc1: Invalid option `no-486'

now a test source code
My "HELLO" code
root@gyc#~/c-code>cat <<EOF > hello.c
> #include <stdio.h>
> void main (void) { printf("Hello World\n"); }
> EOF
root@gyc#~/c-code>ls
.  ..  hello.c
root@gyc#~/c-code>gcc -mno-486 hello.c -o hello
cc1: Invalid option `no-486'
hello.c: In function `main':
hello.c:2: warning: return type of `main' is not `int'
root@gyc#~/c-code>ls
.  ..  hello.c


now the test source code in http://www.codesourcery.com/gcc-compile.shtml

GCC Output


These are the results of processing your source code with the following command:

      gcc -mno-486 [input] 


Exit code: 256

Messages:

      cc1: Invalid option `no-486'
      /tmp/@31596.7.c: In function `main':
      /tmp/@31596.7.c:2: warning: return type of `main' is not `int'
>How-To-Repeat:
      gcc -mno-486 [input] 
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: