Bug 81482 - gcc won't compile system headers without warnings
Summary: gcc won't compile system headers without warnings
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: gcc
Version: 8.0
Hardware: i686
OS: Linux
medium
low
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact: Brian Brock
URL:
Whiteboard:
: 81483 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2003-01-09 20:41 UTC by Pat Gunn
Modified: 2007-04-18 16:49 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2003-01-10 14:30:09 UTC


Attachments (Terms of Use)

Description Pat Gunn 2003-01-09 20:41:44 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2) Gecko/20021126

Description of problem:
When I use the following gcc flags:
gcc -g -pedantic-errors  -Wall -O -pedantic -Wunused-parameter -Wunused-variable
-Wuninitialized -W -Wshadow -Wpointer-arith -Wbad-function-cast -Wconversion
-Wsign-compare -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations
-Wmissing-format-attribute -Wpadded -Wredundant-decls -Wunreachable-code
-Winline -Wdisabled-optimization

On code that includes math.h on redhat8,
it gives the following error:

In file included from /usr/include/math.h:362,
                 from standard.h:107,
                 from ambs.h:27,
                 from amma.h:15,
                 from amvpv.h:14,
                 from amvpv.c:1:
/usr/include/bits/mathinline.h: In function `fabsf':
/usr/include/bits/mathinline.h:446: passing arg 1 of `__builtin_fabsf' as
`float' rather than `double' due to prototype
make[1]: *** [Linux_x86_glibc-2.2.93_gcc.debug/amvpv.o] Error 1


Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
See above

Additional info:

Comment 1 Pat Gunn 2003-01-10 14:19:50 UTC
*** Bug 81483 has been marked as a duplicate of this bug. ***

Comment 2 Jakub Jelinek 2003-01-10 14:30:09 UTC
Either remove -Wconversion, or get rid of -pedantic-errors, you cannot have both.
<math.h> has to declare functions required by the standard to use float
arguments. -Wconversion is there to help playing together with code without
prototypes, but you really cannot use any of the *f or *l functions in them
anyway.


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