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Add flags to the makefile [message #1766452]

Wed, 21 June 2017 14:47

Naum Spaseski

Messages: 81
Registered: February 2016
Location: Sophia Antipolis

Member

Hello everyone,

This is short and simple question. I searched in the docs, but didn't find a solution.

For example, If I want to use newer standard of C++, for example, C++11, how can I specify it without modifying manually the makefile?

In this case, the change I want to make is simple, from this:

# Flags for the C++ compiler:
CXXFLAGS = -Wall

to this:

# Flags for the C++ compiler:
CXXFLAGS = -Wall -std=c++11

Thanks in advance.

Best regards,
Naum

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Re: Add flags to the makefile [message #1766466 is a reply to message #1766452]

Wed, 21 June 2017 16:29

Kristof Szabados

Messages: 60
Registered: July 2015

Member

Hi,

Assuming it is about the makefile used to build Titan:

We use the Makefile.cfg to fine tune the build options.
If you wish to create some personal modifications, or platform dependent setting you can put them in the Makefile.personal file.
That file is included into the Makefile.cfg right after the basic setting are done.
There you could just extend CXXFLAGS using +=

If it is about the generated makefiles used to buil TTCN-3 projects, I can imagine 3 options:
- if you work in eclipse using the built in makefile generator, you can configure additional flags on the projects settings page
- if you generate your makefile from TPD files, there you can also describe such extension
- or the manual modification.

BR.
Kristof

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Re: Add flags to the makefile [message #1766467 is a reply to message #1766466]

Wed, 21 June 2017 16:32

Kristof Szabados

Messages: 60
Registered: July 2015

Member

At the same time a word of caution.

C/C++ is not really offering binary compatibility.
This means that if you use flags that change the way the binary is generated, it may or may not link together with titan's runtime libraries (or worse they link together but does not work correctly)

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