diff options
| author |  Kelvin M. Klann <kmk3.code@protonmail.com> | 2021-06-20 18:31:12 -0300 |
|---|---|---|
| committer | Kelvin M. Klann <kmk3.code@protonmail.com> | 2021-06-27 15:23:22 -0300 |
| commit | 5106b2ec404d4085cb4f741aeca9f2bdc95878a9 (patch) | |
| tree | 599ad4edd21adc5eb9f89d1c801f21c6ec710739 /src/common.mk.in | |
| parent | gcov: fix indentation (diff) | |
| download | firejail-5106b2ec404d4085cb4f741aeca9f2bdc95878a9.tar.gz firejail-5106b2ec404d4085cb4f741aeca9f2bdc95878a9.tar.zst firejail-5106b2ec404d4085cb4f741aeca9f2bdc95878a9.zip | |
gcov: use no-op functions if not enabled
Instead of wrapping every gcov function call in an ifdef.
Note: The usage of `((void)0)` is based on section 7.2 of the C99
standard (N1256)[1] [2]:
> 7.2 Diagnostics <assert.h>
>
> 1 The header <assert.h> defines the assert macro and refers to another
> macro,
>
> NDEBUG
>
> which is not defined by <assert.h>. If NDEBUG is defined as a macro
> name at the point in the source file where <assert.h> is included, the
> assert macro is defined simply as
>
> #define assert(ignore) ((void)0)
See also assert.h(0p) from POSIX.1-2017[3].
Note: This is a continuation of commit b408b20c7 ("gcov: fix build
failure with gcc 11.1.0") / PR #4373.
[1] http://www.open-std.org/JTC1/SC22/WG14/www/docs/n1256.pdf
[2] https://port70.net/~nsz/c/c99/n1256.html#7.2
[3] https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/assert.h.html
Diffstat (limited to 'src/common.mk.in')
0 files changed, 0 insertions, 0 deletions