Add patch to generate DWARF debuginfo instead of STAB

Signed-off-by: Robert-André Mauchin <zebob.m@gmail.com>

0001-nasm_rs-Force-the-dwarf-debug-for-elf-targets.patch

@@ -0,0 +1,74 @@
+From 3f711947d749ecdfbbec5af236e97d5b760b7710 Mon Sep 17 00:00:00 2001
+From: Luca Barbato <lu_zero@gentoo.org>
+Date: Tue, 10 Dec 2019 11:44:19 +0100
+Subject: [PATCH] nasm_rs: Force the dwarf debug for elf targets
+
+---
+ src/lib.rs | 27 ++++++++++++++-------------
+ 1 file changed, 14 insertions(+), 13 deletions(-)
+
+diff --git a/src/lib.rs b/src/lib.rs
+index eb032a0a0..c48a84efc 100644
+--- a/src/lib.rs
++++ b/src/lib.rs
+@@ -9,35 +9,35 @@ use std::process::Stdio;
+ use std::path::{Path, PathBuf};
+ use std::ffi::OsString;
+ 
+-fn x86_triple(os: &str) -> &'static str {
++fn x86_triple(os: &str) -> (&'static str, &'static str) {
+     match os {
+-        "darwin" | "ios" => "-fmacho32",
+-        "windows" => "-fwin32",
+-        _ => "-felf32"
++        "darwin" => ("-fmacho32", "-g"),
++        "windows" => ("-fwin32", "-g"),
++        _ => ("-felf32", "-gdwarf"),
+     }
+ }
+ 
+-fn x86_64_triple(os: &str) -> &'static str {
++fn x86_64_triple(os: &str) -> (&'static str, &'static str) {
+     match os {
+-        "darwin" | "ios" => "-fmacho64",
+-        "windows" => "-fwin64",
+-        _ => "-felf64"
++        "darwin" => ("-fmacho64", "-g"),
++        "windows" => ("-fwin64", "-g"),
++        _ => ("-felf64", "-gdwarf"),
+     }
+ }
+ 
+-fn parse_triple(trip: &str) -> &'static str {
++fn parse_triple(trip: &str) -> (&'static str, &'static str) {
+     let parts = trip.split('-').collect::<Vec<_>>();
+     // ARCH-VENDOR-OS-ENVIRONMENT
+     // or ARCH-VENDOR-OS
+     // we don't care about environ so doesn't matter if triple doesn't have it
+     if parts.len() < 3 {
+-        return ""
++        return ("", "");
+     }
+ 
+     match parts[0] {
+         "x86_64" => x86_64_triple(parts[2]),
+         "x86" | "i386" | "i586" | "i686" => x86_triple(parts[2]),
+-        _ => ""
++        _ => ("", ""),
+     }
+ }
+ 
+@@ -228,10 +228,11 @@ impl Build {
+     }
+ 
+     fn get_args(&self, target: &str) -> Vec<&str> {
+-        let mut args = vec![parse_triple(&target)];
++        let (arch_flag, debug_flag) = parse_triple(&target);
++        let mut args = vec![arch_flag];
+ 
+         if self.debug {
+-            args.push("-g");
++            args.push(debug_flag);
+         }
+ 
+         for arg in &self.flags {

rust-nasm-rs.spec

@@ -6,13 +6,16 @@
 
 Name:           rust-%{crate}
 Version:        0.1.5
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Run NASM during your Cargo build
 
 # Upstream license specification: MIT OR Apache-2.0
 License:        MIT or ASL 2.0
 URL:            https://crates.io/crates/nasm-rs
 Source:         %{crates_source}
+# Patch to generate DWARF debuginfo instead of STABS. Needed for Rav1e.
+# https://github.com/xiph/rav1e/commit/3f711947d749ecdfbbec5af236e97d5b760b7710#diff-3374eb4653baa3be440910b43b58ca64.patch
+Patch0:         0001-nasm_rs-Force-the-dwarf-debug-for-elf-targets.patch
 
 ExclusiveArch:  %{rust_arches}
 
@@ -91,6 +94,9 @@ which use "rayon" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Fri Dec 20 23:53:53 CET 2019 Robert-André Mauchin <zebob.m@gmail.com> - 0.1.5-2
+- Add patch to generate DWARF debuginfo instead of STAB
+
 * Thu Dec 05 18:36:07 CET 2019 Robert-André Mauchin <zebob.m@gmail.com> - 0.1.5-1
 - Release 0.1.5