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preprocessor/6055: gcc-2.95.x: ^M not ignored after #pragma



>Number:         6055
>Category:       preprocessor
>Synopsis:       gcc-2.95.x: ^M not ignored after #pragma
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Mon Mar 25 18:26:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Kurt Garloff
>Release:        2.95.3 (SuSE)
>Organization:
SuSE Linux AG
>Environment:
SuSE Linux 7.3 SMP (ix86)
System: Linux pckurt 2.4.18-SMP #4 SMP Sat Mar 23 11:23:04 CET 2002 i686 unknown
Architecture: i686, 
		Linux,
		i686-pc-linux-gnu
		glibc-2.2.x
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: N.N.
>Description:
	gcc-2.95.x: ^M not ignored after #pragma
>How-To-Repeat:
	#pragma prototyped^M
	typedef int __sig_atomic_t;
	typedef __sig_atomic_t sig_atomic_t;
	
	Compile and watch the compiler barf. (Ctrl-M is ASCII 13 (CR) and
	commonly used before ^J (LF) on some "operating systems")
	
	garloff@gum01m:~/Linux $ gcc  -c gdgen5.E.c
	gdgen5.E.c:3: parse error before sig_atomic_t'
	gdgen5.E.c:3: warning: data definition has no type or storage class
	garloff@gum01m:~/Linux $ gcc -v
	Reading specs from /usr/lib/gcc-lib/i486-suse-linux/2.95.3/specs
	gcc version 2.95.3 20010315 (SuSE)
	
	PS: Thx to John Ellson (Lucent) for finding this bug!
>Fix:
	Either the preprocessor should dump all ^M before evaluating
	anything and before passing data to the compiler, or (better) 
	the compiler should ignore the ^M.
	It has been fixed on the 2.96 snapshots that I've seen and 
	it also is fixed in 3.x.
>Release-Note:
>Audit-Trail:
>Unformatted:


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