Use rust2rpm 26 features to reduce the amount of manual packaging work

libdeflate-sys-fix-metadata.diff

@@ -1,5 +1,5 @@
 --- libdeflate-sys-1.19.3/Cargo.toml	1970-01-01T00:00:01+00:00
-+++ libdeflate-sys-1.19.3/Cargo.toml	2024-02-28T16:35:41.917707+00:00
++++ libdeflate-sys-1.19.3/Cargo.toml	2024-03-10T21:27:12.731439+00:00
 @@ -40,8 +40,7 @@
  
  [build-dependencies.pkg-config]

rust-libdeflate-sys.spec

@@ -1,4 +1,4 @@
-# Generated by rust2rpm 25
+# Generated by rust2rpm 26
 %bcond_without check
 %global debug_package %{nil}
 
@@ -13,19 +13,17 @@ License:        Apache-2.0
 URL:            https://crates.io/crates/libdeflate-sys
 Source:         %{crates_source}
 # Manually created patch for downstream crate metadata changes
-# - Make the dependency on crate(pkg-config) non-optional instead of
-#   associating it with the “dynamic” feature, since we patch the crate to
-#   always link dynamically with the system libdeflate, regardless of the
-#   selected features.
+# * Make the dependency on crate(pkg-config) non-optional instead of associating
+#   it with the “dynamic” feature, since we patch the crate to always link
+#   dynamically with the system libdeflate, regardless of the selected features.
 Patch:          libdeflate-sys-fix-metadata.diff
-# Downstream-only: always link dynamically with the system libdeflate,
-# regardless of the selected features, and do not pin an exact version of
-# libdeflate.
-#
-# Together with libdeflate-sys-fix-metadata.diff, this effectively reverts:
-#   Dynamic Linking Constraints
-#   https://github.com/adamkewley/libdeflater/pull/32
-Patch:          libdeflate-sys-1.19.3-unconditional-pkg-config.patch
+# # * Downstream-only: always link dynamically with the system libdeflate,
+# #   regardless of the selected features, and do not pin an exact version of
+# #   libdeflate. Together with libdeflate-sys-fix-metadata.diff, this effectively
+# #   reverts:
+# # * Dynamic Linking Constraints
+# # * https://github.com/adamkewley/libdeflater/pull/32
+Patch10:       libdeflate-sys-1.19.3-unconditional-pkg-config.patch
 
 BuildRequires:  cargo-rpm-macros >= 24
 

rust2rpm.toml

@@ -5,3 +5,23 @@ build = [
 lib = [
   "pkgconfig(libdeflate)"
 ]
+
+[package]
+cargo-toml-patch-comments = [
+    "Make the dependency on crate(pkg-config) non-optional instead of associating it with the “dynamic” feature, since we patch the crate to always link dynamically with the system libdeflate, regardless of the selected features.",
+]
+
+[[package.extra-patches]]
+number = 10
+file = "libdeflate-sys-1.19.3-unconditional-pkg-config.patch"
+comments = [
+    "Downstream-only: always link dynamically with the system libdeflate, regardless of the selected features, and do not pin an exact version of libdeflate. Together with libdeflate-sys-fix-metadata.diff, this effectively reverts:",
+    "Dynamic Linking Constraints",
+    "https://github.com/adamkewley/libdeflater/pull/32"
+]
+
+[scripts.prep]
+pre = [
+    "# Remove the bundled copy of libdeflate.",
+    "rm -rv libdeflate",
+]