Florian Klink 07c4056179 gnats: format hardened flag isn't supported ... When invoking a simple Ada program with `gcc` from `gnats10`, the following warnings are shown: ``` $ gcc -c conftest.adb gnat1: warning: command-line option ‘-Wformat=1’ is valid for C/C++/ObjC/ObjC++ but not for Ada gnat1: warning: command-line option ‘-Wformat-security’ is valid for C/C++/ObjC/ObjC++ but not for Ada gnat1: warning: ‘-Werror=’ argument ‘-Werror=format-security’ is not valid for Ada $ echo $? 0 ``` This is only spammy when compiling Ada programs inside a Nix derivation, but certain configure scripts (such as the ./configure script from the gcc that's built by coreboot's `make crossgcc` command) fail entirely when getting that warning output. https://nixos.wiki/wiki/Coreboot currently suggests manually running > NIX_HARDENING_ENABLE="${NIX_HARDENING_ENABLE/ format/}" make crossgcc … but actually teaching the nixpkgs-provided cc wrapper that `format` isn't supported as a hardening flag seems to be the more canonical way to do this in nixpgks. After this, Ada programs still compile: ``` $ gcc -c conftest.adb $ echo $? 0 ``` And the compiler output is empty.		2020-12-23 01:51:14 +01:00
..
add-flags.sh	stdenv: make -nostdinc work as intended	2020-07-23 08:39:46 +01:00
add-hardening.sh	*-wrapper; Switch from infixSalt to suffixSalt	2020-05-12 00:44:44 -04:00
cc-wrapper.sh	stdenv: make -nostdinc work as intended	2020-07-23 08:39:46 +01:00
default.nix	gnats: format hardened flag isn't supported	2020-12-23 01:51:14 +01:00
fortran-hook.sh	cc-wrapper: set FC when langFortran is on	2020-07-06 00:22:19 -04:00
gnat-wrapper.sh	gnat: fix build	2020-09-19 20:54:27 -07:00
setup-hook.sh	*-wrapper; Switch from infixSalt to suffixSalt	2020-05-12 00:44:44 -04:00