addition of build_cc to the Readme

Author: Ryan Clanton

Cargo.toml

@@ -30,3 +30,5 @@ cache-friendly = ["snmalloc-sys/cache-friendly"]
 android-lld = ["snmalloc-sys/android-lld"]
 android-shared-stl = ["snmalloc-sys/android-shared-stl"]
 native-cpu = ["snmalloc-sys/native-cpu"]
+local_dynamic_tls = ["snmalloc-sys/local_dynamic_tls"]
+

README.md

@@ -23,6 +23,9 @@ There are three features defined in this crate:
 - `native-cpu`: Optimize `snmalloc` for the native CPU of the host machine. (this is not a default behavior since `0.2.14`)
 - `qemu`: workaround `madvise` problem of QEMU environment
 - `stats`: enable statistics
+- `local_dynamic_tls`: workaround cannot allocate memory in static tls block
+- `build_cc`: use of cc crate instead of cmake (cmake still default) as builder (more platform agnostic)
+
 
 **To get the crates compiled, you need to choose either `1mib` or `16mib` to determine the chunk configuration**
 
@@ -62,6 +65,13 @@ Hence, please make sure the following libs are in your `PATH`:
 - feature `android-shared-std` can be used to set the STL library of `snmalloc` to `c++_shared` (it uses `c++_static` by default)
 
 ## Changelog
+### 0.2.26
+
+- **upstream** Building adjustment
+- option of cc crate as build feature, only c compiler needed, no cmake required
+- Addition of dynamic local TLS option
+
+
 ### 0.2.25
 
 - **upstream** Apple M1 support

snmalloc-sys/build.rs

@@ -33,6 +33,7 @@ fn main() {
     build.flag_if_supported("-g");
     build.flag_if_supported("-fomit-frame-pointer");
     build.flag_if_supported("-fpermissive");
+    build.static_crt(true);
     build.cpp(true);
     build.debug(false);
 
@@ -45,11 +46,9 @@ fn main() {
         if cfg!(feature = "android-lld") {
             build.define("ANDROID_LD", "lld");
         }
-
         if cfg!(feature = "android-shared-stl") {
             build.define("ANDROID_STL", "c++_shared");
         }
-
         if triple.contains("aarch64") {
             build.define("ANDROID_ABI", "arm64-v8a");
         } else if triple.contains("armv7") {
@@ -66,16 +65,7 @@ fn main() {
         }
     }
 
-    if target_os == "windows" && target_env == "gnu" {
-        build.define("CMAKE_SH", "CMAKE_SH-NOTFOUND");
-        if cfg!(feature = "local_dynamic_tls") {
-            build.flag_if_supported("-ftls-model=local-dynamic");
-        } else {
-            build.flag_if_supported("-ftls-model=initial-exec");
-        }
-    }
-
-    if target_family == "unix" && target_os != "haiku" {
+    if target_family == "unix" || target_env == "gnu" && target_os != "haiku" {
         if cfg!(feature = "local_dynamic_tls") {
             build.flag_if_supported("-ftls-model=local-dynamic");
         } else {
@@ -119,7 +109,6 @@ fn main() {
     }
 
     if target_os == "windows" && target_env == "gnu" {
-        //using cc
         println!("cargo:rustc-link-lib=dylib=atomic");
     }
 
@@ -141,7 +130,6 @@ fn main() {
     };
 }
 
-
 #[cfg(not(feature = "build_cc"))]
 fn main() {
     let mut cfg = &mut cmake::Config::new("snmalloc");