Followed by manual, optional trailing text can be used to give more information
in the warning
message(http://gcc.gnu.org/onlinedocs/gcc-3.4.6/cpp/Pragmas.html#Pragmas ->
'#pragma GCC dependency' section). However, proprecessor gives warning messages
when there is optional trailing text. And this occures above certain
version(3.4.6).
$ touch /usr/include/time.h
$ echo '#pragma GCC dependency "/usr/include/time.h" rerun fixincludes' >z.c
$ gcc32 --version
gcc32 (GCC) 3.2.3 20030502 (Red Hat Linux 3.2.3-47.3)
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ gcc32 -c z.c
$ gcc --version
gcc (GCC) 3.4.6 20060404 (Red Hat 3.4.6-8)
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ gcc -c z.c
z.c:1:46: warning: extra tokens at end of #pragma directive
$ gcc4 --version
gcc4 (GCC) 4.1.1 20070105 (Red Hat 4.1.1-53)
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ gcc4 -c z.c
z.c:1:46: warning: extra tokens at end of #pragma directive
$
--
Summary: #pragma GCC dependency generates extra token error.
Product: gcc
Version: 3.4.6
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: preprocessor
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: novedad at naver dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32974
