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How to add the "-std=c99" option for gcc in Eclipse? [message #212981]

Sat, 29 March 2008 12:02

Warren Tang
Messages: 32
Registered: July 2009

Member

Hello,

I need to use some C99 features but I have to add the -std=c99 option
for gcc. So how can I add this option in Eclipse?

Thanks!
(Sorry for my first mail got the wrong place, so I repost it.)

Regards
Warren Tang

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Re: How to add the "-std=c99" option for gcc in Eclipse? [message #212988 is a reply to message #212981]

Sat, 29 March 2008 12:12

Warren Tang
Messages: 32
Registered: July 2009

Member

For example, when I wrote this code:
for(int i = 0; i < 10; i++) {}

The gcc compiler complained that
‘for’ loop initial declaration used outside C99 mode

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Re: How to add the "-std=c99" option for gcc in Eclipse? [message #213011 is a reply to message #212988]

Sat, 29 March 2008 15:17

Eclipse User

Originally posted by: newsgroups.snipah.com

Warren Tang wrote:
> For example, when I wrote this code:
> for(int i = 0; i < 10; i++) {}
>
> The gcc compiler complained that
> ‘for’ loop initial declaration used outside C99 mode
>
Hi Warren,

Simply open the project preferences and add -std=c99 to Settings/C
Compiler/Miscellaneous/Other Flags

Enrico

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Re: How to add the "-std=c99" option for gcc in Eclipse? [message #213033 is a reply to message #213011]

Sat, 29 March 2008 23:25

Warren Tang
Messages: 32
Registered: July 2009

Member

Enrico Ehrich wrote:
> Warren Tang wrote:
>> For example, when I wrote this code:
>> for(int i = 0; i < 10; i++) {}
>>
>> The gcc compiler complained that
>> ‘for’ loop initial declaration used outside C99 mode
>>
> Hi Warren,
>
> Simply open the project preferences and add -std=c99 to Settings/C
> Compiler/Miscellaneous/Other Flags
>
> Enrico
>

Hi, Enrico

Thanks you very much! I found it there finally.

Warren

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Re: How to add the "-std=c99" option for gcc in Eclipse? [message #940724 is a reply to message #212981]

Thu, 11 October 2012 19:00

Quan Vo
Messages: 1
Registered: October 2012

Junior Member

Sorry to bring this back from the dead, but I was wondering if you knew how to do this with the current version of Eclipse and CDT.

SOLVED:
Project -> Properties
C/C++ Build -> Settings -> Tool Settings -> (Cygwin C Compiler) -> Miscellaneous
Other flags (a text field)

Note that I'm using Cygwin and you may have something different.

[Updated on: Thu, 11 October 2012 19:14]

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Re: How to add the "-std=c99" option for gcc in Eclipse? [message #980406 is a reply to message #940724]

Sun, 11 November 2012 11:50

saurabh agarwal
Messages: 2
Registered: November 2012

Junior Member

Is there any method of changing default flags of gcc compiler in Eclipse? I wish to apply the flag -std=c99 to all the c projects by default I create, instead of applying it project by project?

thanks in advance

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