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User forums => Using Code::Blocks => Topic started by: DoctorRad on November 09, 2016, 11:18:12 am

Title: gfortran Compiler Options File
Post by: DoctorRad on November 09, 2016, 11:18:12 am
Hi folks,

I am trying to add a couple of extra compiler options to the GNU Fortran Compiler, so have added the following section to options_gfortran.xml:

Code: xml
	<Category name="Misc">
		<Option name="Do not append underscores to names of entities specified in the Fortran source file"
                option="-fno-underscoring"/>
		<Option name="Use a different function-calling convention"
                option="-mrtd"/>
	</Category>

It does not appear that this is being picked up when I re-start C::B (Windows v16.01).

Can anyone help sort out what might be wrong? There does not appear to be a separate Compiler File (compiler_*.xml) specifically for gfortran, and it appears that the options_gfortran.xml file is being ignored.

Many thanks,

Dr. Matt...
Title: Re: gfortran Compiler Options File
Post by: gd_on on November 09, 2016, 07:53:34 pm
Hi,
I tried to add your lines in my options_gfortran.xml (in my C:\Program Files (x86)\CodeBlocks\share\CodeBlocks\compilers folder).
It works as expected : new options appear in my fortran compiler options.
I had a problem with my 64 bits version because my configuration for gfortran 64 was based on gcc. But, I rebuilt it from standard gfortran, and it also works now.
So, there is something wrong in your configuration, but it should work.

cordially,

gd_on
Title: Re: gfortran Compiler Options File
Post by: oBFusCATed on November 09, 2016, 07:59:45 pm
Have you tried to use UI in the complier options dialog?
Right click -> Add new flag or something like this.
Title: Re: gfortran Compiler Options File
Post by: DoctorRad on November 10, 2016, 10:31:47 am
Quote from: gd_on on November 09, 2016, 07:53:34 pm
I had a problem with my 64 bits version because my configuration for gfortran 64 was based on gcc. But, I rebuilt it from standard gfortran, and it also works now. So, there is something wrong in your configuration, but it should work.
Many thanks for your response. Could you talk me through 'rebuilding from standard gfortran' or point me in the direction of a guide? What do you mean by 'standard' gfortran?

Best wishes,

Dr. Matt...
Title: Re: gfortran Compiler Options File
Post by: DoctorRad on November 10, 2016, 10:33:28 am
Quote from: oBFusCATed on November 09, 2016, 07:59:45 pm
Have you tried to use UI in the complier options dialog?
Right click -> Add new flag or something like this.
Yes, I've tried this, but the user interface does not allow you to add a new category of flags from what I can see.

Can you also tell me, if I do add new flags using the user interface, in which configuration file they should appear?

Many thanks,

Dr. Matt...
Title: Re: gfortran Compiler Options File
Post by: gd_on on November 10, 2016, 04:40:00 pm
Quote from: DoctorRad on November 10, 2016, 10:31:47 am
Quote from: gd_on on November 09, 2016, 07:53:34 pm
I had a problem with my 64 bits version because my configuration for gfortran 64 was based on gcc. But, I rebuilt it from standard gfortran, and it also works now. So, there is something wrong in your configuration, but it should work.
Many thanks for your response. Could you talk me through 'rebuilding from standard gfortran' or point me in the direction of a guide? What do you mean by 'standard' gfortran?

I'm not sure if gfortran configuration was already included in 16.01 version. I use myself a nightly svn version (and more a version that I build myself with the distributed .workspace file, but it's not necessary: last distributed nightlies should be OK for Windows or Linux). In that case, when I choose a compiler for a fortran source, in Settings / Compiler..., I click on the first top button under "Selected Compiler" and choose GNU fortran compiler which is almost at the bottom of the list. This is this setting that I call standard gfortran (may be I should say "distributed version").
So, I choosed this version, which has a "Fortran Dialect" category, then copy it (with the "Copy" button"), and modified the copy to obtain a 64 bit setting for gfortran.

gd_on
Title: Re: gfortran Compiler Options File
Post by: oBFusCATed on November 10, 2016, 09:19:58 pm
Quote from: DoctorRad on November 10, 2016, 10:33:28 am
Can you also tell me, if I do add new flags using the user interface, in which configuration file they should appear?
Somewhere next to the default.conf file. It is some xml file.
Title: Re: gfortran Compiler Options File
Post by: DoctorRad on November 14, 2016, 04:42:06 pm
Quote from: oBFusCATed on November 10, 2016, 09:19:58 pm
Somewhere next to the default.conf file. It is some xml file.
Many thanks, I found it now, a modified options_gfortran.xml file is in my AppData folder, not with the main application files.

In keeping with the style of that file, I added the following two lines:

Code: xml
  <Option name="Do not append underscores to names of entities specified in the Fortran source file" option="-fno-underscoring" category="Misc"/>
  <Option name="Use a different function-calling convention" option="-mrtd" category="Misc"/>

...and the two options now appear in their own 'Misc' category as expected.