diff options
Diffstat (limited to 'pkgs/development/misc/newlib/default.nix')
| -rw-r--r-- | pkgs/development/misc/newlib/default.nix | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/pkgs/development/misc/newlib/default.nix b/pkgs/development/misc/newlib/default.nix index d162753608b..56c644af140 100644 --- a/pkgs/development/misc/newlib/default.nix +++ b/pkgs/development/misc/newlib/default.nix @@ -31,13 +31,37 @@ stdenv.mkDerivation (finalAttrs: { # newlib expects CC to build for build platform, not host platform preConfigure = '' export CC=cc + '' + + # newlib tries to disable itself when building for Linux *except* + # when native-compiling. Unfortunately the check for "is cross + # compiling" was written when newlib was part of GCC and newlib + # was built along with GCC (therefore newlib was built to execute + # on the targetPlatform, not the hostPlatform). Unfortunately + # when newlib was extracted from GCC, this "is cross compiling" + # logic was not fixed. So we must disable it. + '' + substituteInPlace configure --replace 'noconfigdirs target-newlib target-libgloss' 'noconfigdirs' + substituteInPlace configure --replace 'cross_only="target-libgloss target-newlib' 'cross_only="' ''; + configurePlatforms = [ "build" "target" ]; # flags copied from https://community.arm.com/support-forums/f/compilers-and-libraries-forum/53310/gcc-arm-none-eabi-what-were-the-newlib-compilation-options # sort alphabetically configureFlags = [ - "--host=${stdenv.buildPlatform.config}" + "--with-newlib" + + # The newlib configury uses `host` to refer to the platform + # which is being used to compile newlib. Ugh. It does this + # because of its history: newlib used to be distributed with and + # built as part of gcc. + # + # To prevent nixpkgs from going insane, this package presents the + # "normal" view to the outside world: the binaries in $out will + # execute on `stdenv.hostPlatform`. We then fool newlib's build + # process into doing the right thing. + "--host=${stdenv.targetPlatform.config}" + ] ++ (if !nanoizeNewlib then [ "--disable-newlib-supplied-syscalls" "--disable-nls" |