Unify spec so novendor is toggled based on Fedora release version

Signed-off-by: Michel Alexandre Salim <salimma@fedoraproject.org>

libbpf-cargo-default-to-novendor.diff

@@ -0,0 +1,10 @@
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -76,6 +76,7 @@ version = "1.0"
+ version = "0.5"
+ 
+ [features]
++default = ["novendor"]
+ novendor = ["libbpf-sys/novendor"]
+ [badges.maintenance]
+ status = "actively-developed"

libbpf-cargo-fix-metadata.diff

@@ -1,5 +1,5 @@
 --- libbpf-cargo-0.13.1/Cargo.toml	1970-01-01T00:00:01+00:00
-+++ libbpf-cargo-0.13.1/Cargo.toml	2022-12-12T18:44:06.726590+00:00
++++ libbpf-cargo-0.13.1/Cargo.toml	2023-01-30T20:36:09.129229+00:00
 @@ -32,7 +32,7 @@
  version = "1.0"
  
@@ -9,7 +9,7 @@
  
  [dependencies.clap]
  version = "3.1"
-@@ -73,9 +73,10 @@
+@@ -73,7 +73,7 @@
  [dependencies.thiserror]
  version = "1.0"
  [dev-dependencies.goblin]
@@ -17,7 +17,4 @@
 +version = "0.5"
  
  [features]
-+default = ["novendor"]
  novendor = ["libbpf-sys/novendor"]
- [badges.maintenance]
- status = "actively-developed"

rust-libbpf-cargo.spec

@@ -3,6 +3,14 @@
 
 %global crate libbpf-cargo
 
+%if 0%{?fedora} == 38
+# Fedora 38's libbpf is new enough
+# currently: 1.1.0
+%bcond_without novendor
+%else
+%bcond_with novendor
+%endif
+
 Name:           rust-libbpf-cargo
 Version:        0.13.1
 Release:        %autorelease
@@ -14,11 +22,12 @@ Source:         %{crates_source}
 # Manually created patch for downstream crate metadata changes
 # - bump cargo_metadata to 0.15
 # - bump goblin to 0.5
-# - use libbpf-sys/novendor by default
 Patch:          libbpf-cargo-fix-metadata.diff
 # by default, test.rs expects libbpf-rs to be in the same checkout
 # fix to point to /usr/share/cargo/registry
 Patch:          libbpf-cargo-fix-finding-libbpf-rs.diff
+# Conditional patch for defaulting to novendor
+Patch101:       libbpf-cargo-default-to-novendor.diff
 
 BuildRequires:  rust-packaging >= 21
 
@@ -69,6 +78,7 @@ use the "default" feature of the "%{crate}" crate.
 %files       -n %{name}+default-devel
 %ghost %{crate_instdir}/Cargo.toml
 
+%if %{with novendor}
 %package     -n %{name}+novendor-devel
 Summary:        %{summary}
 BuildArch:      noarch
@@ -80,9 +90,14 @@ use the "novendor" feature of the "%{crate}" crate.
 
 %files       -n %{name}+novendor-devel
 %ghost %{crate_instdir}/Cargo.toml
+%endif
 
 %prep
-%autosetup -n %{crate}-%{version_no_tilde} -p1
+%autosetup -n %{crate}-%{version_no_tilde} -N
+%autopatch -p1 -M 100
+%if %{with novendor}
+%autopatch -p1 -m 101
+%endif
 %cargo_prep
 
 %generate_buildrequires