mirror of
https://github.com/trussed-dev/littlefs2-sys.git
synced 2026-06-20 04:16:31 -07:00
Robin Krahl
4b2b82c4f3
During rebasing of https://github.com/trussed-dev/littlefs2-sys/pull/19, the line that enables the LFS_MULTIVERSION feature flag not only for the compilation but also for the code generation somehow got lost. This patch updates the build script and prepares the bugfix release v0.3.1.
74 lines
2.3 KiB
Rust
74 lines
2.3 KiB
Rust
use std::env;
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use std::path::PathBuf;
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fn main() -> Result<(), Box<dyn std::error::Error>> {
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let mut builder = cc::Build::new();
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let builder = builder
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.flag("-std=c99")
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.flag("-DLFS_NO_DEBUG")
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.flag("-DLFS_NO_WARN")
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.flag("-DLFS_NO_ERROR")
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.file("littlefs/lfs.c")
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.file("littlefs/lfs_util.c")
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.file("string.c");
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#[cfg(feature = "software-intrinsics")]
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let builder = builder.flag("-DLFS_NO_INTRINSICS");
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#[cfg(not(feature = "assertions"))]
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let builder = builder.flag("-DLFS_NO_ASSERT");
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#[cfg(feature = "trace")]
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let builder = builder.flag("-DLFS_YES_TRACE");
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#[cfg(not(feature = "malloc"))]
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builder.flag("-DLFS_NO_MALLOC");
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#[cfg(feature = "multiversion")]
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let builder = builder.flag("-DLFS_MULTIVERSION");
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builder.compile("lfs-sys");
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// Patch lfs.h to remove the lfs_util import because clang fails to locate the
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// libraries for the custom target (especially string.h)
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// Compilation before that succeeds because it's using gcc,
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// which comes as a distribution with these utils.
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// Turns out lfs_utils is not used in lfs.h, and clang properly finds stdint.h and stdbool,
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// but not string.h
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let lfs_h = std::fs::read_to_string("littlefs/lfs.h").expect("Reading lfs.h succeeds");
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println!("cargo::rerun-if-changed=littlefs/lfs.h");
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let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
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let out_lfs_h = out_path.join("lfs.h");
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std::fs::write(
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&out_lfs_h,
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lfs_h.replace(
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r##"#include "lfs_util.h""##,
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"#include <stdint.h>\n#include <stdbool.h>",
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),
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)
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.expect("Failed to write lfs.h");
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let bindgen = bindgen::Builder::default()
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.header(out_lfs_h.into_os_string().into_string().unwrap())
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.clang_arg("-std=c99")
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.clang_arg("-DLFS_NO_DEBUG")
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.clang_arg("-DLFS_NO_WARN")
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.clang_arg("-DLFS_NO_ERROR");
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#[cfg(feature = "multiversion")]
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let bindgen = bindgen.clang_arg("-DLFS_MULTIVERSION");
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let bindings = bindgen
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.use_core()
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.allowlist_item("lfs_.*")
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.allowlist_item("LFS_.*")
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.generate()
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.expect("Unable to generate bindings");
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bindings
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.write_to_file(out_path.join("bindings.rs"))
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.expect("Couldn't write bindings!");
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Ok(())
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}
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