From 8f82d69669538b587b541cd0114f0f298d5c7309 Mon Sep 17 00:00:00 2001
From: Rodrigo Arias Mallo <rodrigo.arias@bsc.es>
Date: Mon, 20 Nov 2023 17:47:55 +0100
Subject: [PATCH] libcap: Fix static build setting LIBCSTATIC=yes

Fixes the build of pkgsStatic.libcap, as it was trying to link to the
dinamic libc. From libcap-2.69/progs/Makefile:

  ...
  ifeq ($(LIBCSTATIC),yes)
  LDFLAGS = --static
  DEPS = ../libcap/libcap.a
  else
  # For this build variant override the LDFLAGS to link statically from
  # libraries within the build tree. If you never want this, use make
  # DYNAMIC=yes . Note, we can't reliably link statically against glibc
  # becasuse of https://sourceware.org/bugzilla/show_bug.cgi?id=12491 .
  LDFLAGS = -Wl,-Bstatic
  LDFLAGS_SUFFIX = -Wl,-Bdynamic
  DEPS = ../libcap/libcap.a
  endif
  ...
---
 pkgs/os-specific/linux/libcap/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/os-specific/linux/libcap/default.nix b/pkgs/os-specific/linux/libcap/default.nix
index 9b23625102ae..3fb3003d77aa 100644
--- a/pkgs/os-specific/linux/libcap/default.nix
+++ b/pkgs/os-specific/linux/libcap/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
     "BUILD_CC=$(CC_FOR_BUILD)"
     "CC:=$(CC)"
     "CROSS_COMPILE=${stdenv.cc.targetPrefix}"
-  ] ++ lib.optional isStatic "SHARED=no";
+  ] ++ lib.optionals isStatic [ "SHARED=no" "LIBCSTATIC=yes" ];
 
   postPatch = ''
     patchShebangs ./progs/mkcapshdoc.sh