config: re-enable diffutils and curl in redbear-mini; nghttp2: build with -fPIC for libcurl; relibc: bump submodule with float.h/getprogname fixes

config/redbear-mini.toml

@@ -90,8 +90,8 @@ iommu = {}
 # ── Standard CLI tools (from server profile) ──
 bash = {}
 bottom = {}
-#curl = {}  # suppressed: nghttp2 dependency chain fails; curl not needed for boot/recovery
-diffutils = "ignore"  # suppressed: relibc/gnulib header gaps; not needed for boot/recovery or greeter proof
+curl = {}
+diffutils = {}
 findutils = {}
 uutils-tar = {}
 bison = {}

recipes/libs/nghttp2/recipe.toml

@@ -10,6 +10,11 @@ template = "custom"
 script = """
 DYNAMIC_INIT
 
+# libcurl links libnghttp2.a into a shared libcurl.so, so the static archive
+# must be built with position-independent code.
+export CFLAGS="$CFLAGS -fPIC"
+export CXXFLAGS="$CXXFLAGS -fPIC"
+
 COOKBOOK_CONFIGURE_FLAGS+=(
     --enable-lib-only
 )