void-packages/srcpkgs/rust/patches/lzma-sys-cross-ldflags.patch

This allows lzma-sys to build in a cross-compiling environment.
--- rustc-1.33.0-src/vendor/lzma-sys/build.rs
+++ rustc-1.33.0-src/vendor/lzma-sys/build.rs
@@ -101,6 +101,7 @@
         }
         cmd.env("CC", compiler.path())
            .env("CFLAGS", cflags)
+           .env("LDFLAGS", "")
            .current_dir(&dst.join("build"))
            .arg(sanitize_sh(&src.join("configure")));
         cmd.arg(format!("--prefix={}", sanitize_sh(&dst)));
rust: fix miscompilation of rustc on musl + enable vendor crates This commit fixes several things. 1) It enables usage of vendor crates, making our patches actually do something (those for the vendor/ subdirectory anyway) 2) By extension, it enables dynamic linking of musl, which was not being done at all. 3) Removes the ugly LDFLAGS hack, which was causing miscompilation in cross environments, as it didn't pass the cross sysroot to search for libs in when linking. This resulted in a particularly bad miscompilation when cross-compiling from glibc to musl on the same architecture, as it would link against glibc's libc.a instead of musl's libc.a (not libc.so because the musl dynamic link patch was not being used), resulting in failures when actually compiling various projects. This hack is now replaced with properly patching the lzma-sys crate instead, which was the culprit previously when it comes to failures. [ci skip] 2019-05-02 01:54:29 +00:00			`This allows lzma-sys to build in a cross-compiling environment.`
			`--- rustc-1.33.0-src/vendor/lzma-sys/build.rs`
			`+++ rustc-1.33.0-src/vendor/lzma-sys/build.rs`
			`@@ -101,6 +101,7 @@`
			`}`
			`cmd.env("CC", compiler.path())`
			`.env("CFLAGS", cflags)`
			`+ .env("LDFLAGS", "")`
			`.current_dir(&dst.join("build"))`
			`.arg(sanitize_sh(&src.join("configure")));`
			`cmd.arg(format!("--prefix={}", sanitize_sh(&dst)));`