elf-header: Init at <libc version>

A little shim derivation to get this header for Darwin, where it is
needed for cross compilation.

There's no real reason to do glibc and musl like that, but as I'm
maintaining it I suppose I can go overboard like that.

1 files changed, 8 insertions, 0 deletions

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e09e89b0b90e..f9df4ea4fb83 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -9513,6 +9513,14 @@ with pkgs;
     installLocales = config.glibc.locales or false;
   };
 
+  # Provided by libc on Operating Systems that use the Extensible Linker Format.
+  elf-header =
+    if stdenv.hostPlatform.parsed.kernel.execFormat.name == "elf"
+    then null
+    else elf-header-real;
+
+  elf-header-real = callPackage ../development/libraries/elf-header { };
+
   glibc_memusage = callPackage ../development/libraries/glibc {
     installLocales = false;
     withGd = true;