Bug 39929

Summary: gcc-2.96 errors out if typedef ... ident precedes #ident line
Product: [Retired] Red Hat Linux Reporter: Mike Wescott <wescott>
Component: gccAssignee: Jakub Jelinek <jakub>
Status: CLOSED RAWHIDE QA Contact: David Lawrence <dkl>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.1   
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
URL: #ident directive produces
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2001-05-10 07:54:35 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Mike Wescott 2001-05-09 19:16:04 UTC
From Bugzilla Helper:
User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.2.16-3 i686)

Description of problem:
gcc-2.96-81 on RH 7.0 and 7.1

if a line like
typedef char *ident;
precedes a #ident line the compiler errors out
with "invalid #-line"

How reproducible:
Always

Steps to Reproduce:
1. cat - > xxx.c <<XXX
typedef char *ident;
#ident "xxx.c"
main() { exit(0);}
XXX

2. gcc -o xxx xxx.c

	

Actual Results:  gcc complains:
xxx.c:2: invalid #-line


Expected Results:  clean compile producing xxx

Additional info:

works on 6.2 with gcc from egcs-1.1.2-30
works on 7.1 with kgcc from compat-egcs-6.2-1.1.2.14

-fno-ident doesn't help

Comment 1 Jakub Jelinek 2001-05-10 07:54:29 UTC
Will be fixed in gcc-2.96-86. The fix is easy:
--- gcc/c-lex.c.jj      Wed May  9 20:56:44 2001
+++ gcc/c-lex.c Thu May 10 11:07:14 2001
@@ -614,7 +614,7 @@ check_newline ()

   token = yylex ();

-  if (token == IDENTIFIER)
+  if (token == IDENTIFIER || token == TYPENAME || token == OBJECTNAME)
     {
       /* If a letter follows, then if the word here is `line', skip
         it and ignore it; otherwise, ignore the line, with an error