The two intended uses cases for the _pkg_extra_* macros were to
make it easier for packagers to add new compile flags for use
with their package and also to make it easier to do distro wide
experiments with new flags.
However, it was pointed out on the mailing list[1] that you
can't satisfy both of these uses cases at the same time with
just one set of macros. For example, if a packager uses
_pkg_extra_* macros to add flags specific to their own
package, then someone using _pkg_extra_* macros to
apply a new flag distro wide would override the package
specific flag.
I feel like the distro-wide use case is much more important,
so rather than create two sets of new flags, one for each use
case, I think it's best to rename the _pkg_extra_* macros
to _distro_extra_* and document that they are only meant
to be used for adding distro-wide flags and packagers should
not use this macro.
[1] https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/TOG5RHWPS3VYMM52HFGZOUJVRCGZ7VXB/
The double undefine was unnecessary and exposed a bug in ccache. Club
the undefine and define into a single -Wp instead, which works for all
redefinitions of _FORTIFY_SOURCE.
RHEL does not intend to enable frame pointers at this time, and any
change will be done so based on a variety of inputs including the data
from Fedora. Disable them for ELN to set proper expectations.
Signed-off-by: Stephen Gallagher <sgallagh@redhat.com>
Make the _FORTIFY_SOURCE flags configurable so that the command line is
not cluttered with _FORTIFY_SOURCE definitions and undefines. Introduce
a %_fortify_level variable that a package may override by either
undefining or defining to a specific value.
Also bump the default value to 3, to implement the systemwide proposal
for Fedora 38:
https://fedoraproject.org/wiki/Changes/Add_FORTIFY_SOURCE%3D3_to_distribution_build_flags
If `%_include_frame_pointers` is defined, add `-fno-omit-frame-pointer`
and `-mno-omit-leaf-frame-pointer` to the compiler flags to ensure frame
pointers are always included.
This is in preparation for
https://fedoraproject.org/wiki/Changes/fno-omit-frame-pointer
I would like to try to move the optflags definition into the macro file
to make it cleaner and easier to maintain, so to make that easier, I
wanted to start by removing unsupported arches, so there is less code
to move.
This requires the build system support VALAFLAGS. At least Meson and
Automake do.
Using -g is desired because it allows us to see Vala source files and
line numbers in backtraces when possible, falling back to generated C
code otherwise. Line numbers for generated C are almost always less
useful when debugging crashes.
