gcc-weverything

KO | EN

gitlite — search

#javascript #ai #golang #android #machine-learning #deep-learning #linux #java #windows #kubernetes #pytorch #security #ios #openai

gcc-weverything

(★ 8)

The option -Weverything for GCC

gcc-weverything Latest Version Download

Download Latest Version (.zip)

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

# Warnings for GCC

Clang has a handy option called `-Weverything`, which
enables every warning built into the compiler.
GCC does not.
This project provides `-Weverything` for compiling C files with GCC.

Both compilers of course have `-Wall` and `-Wextra`, but
their names are misleading:
they only offer a few of the most commonly used warnings.

## Files

The file `extract.scm` contains sloppy code for
extracting all of the `-W` options from
the source code of any version of GCC.
That includes undocumented options, which are actually quite common.
Those willing to try it need CHICKEN and some eggs,
a Scheme implementation and a bunch of libraries, to run it.
It is safe to use in the sense that
it does not do any destructive operations like writing files.

The file `checkout.sh` contains equally sloppy code for
checking out various GCC versions from a local Git repository, which
has to be downloaded separately.
It exists to automate using `extract.scm` and
contains all of the potentially harmful operations, so
one should proceed with caution.

The rest of the files inside the `tags` directory contain
the warning options for each of the tagged versions of GCC.
For example `gcc-4_8_0-release` contains
124 warnings of which 23 are undocumented.

## Installation

The closest thing to an installation is downloading the option listings for
each version of interest.

[user@computer:~]$ wget https://github.com/Tuplanolla/gcc-weverything/blob/master/tags/gcc-4_8_0-release

## Usage

It is easy to integrate `-Weverything` with `make` by fixing the version

CFLAGS=`cat gcc-4_8_0-release`

or detecting it automatically.

CFLAGS=gcc-`gcc --version | grep -o "[0-9]\+$\.[0-9]$*" | head -n 1 | tr . _`-release

## Bugs and Limitations

Throughout history GCC has used three kinds of option specification systems, so
there can be small variations in the extracted output.
For example `-Wformat` was changed to `-Wformat=` when
version 3.4.0 was released.
Such options have to be tweaked by hand or removed.

Since everything really means everything here, `-Werror` and
warnings like, say, `-Wtraditional` are also included.
Therefore it is almost impossible to
compile files without disabling some of them with `-Wno-`.

CFLAGS=`cat gcc-4_8_0-release` -Wno-error

gcc-weverything

gcc-weverything Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

gcc-weverything

gcc-weverything Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

Download README