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284 lines
8.5 KiB
284 lines
8.5 KiB
3 years ago
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From 6b84166ffa2725391f548cb0c91c2e668a4769f6 Mon Sep 17 00:00:00 2001
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From: Fabio Valentini <decathorpe@gmail.com>
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Date: Mon, 8 Aug 2022 18:34:08 +0200
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Subject: [PATCH] Unconditionally use bindgen and dynamic linking with
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pkg-config
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---
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build.rs | 248 +++----------------------------------------------------
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1 file changed, 11 insertions(+), 237 deletions(-)
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diff --git a/build.rs b/build.rs
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index d74ea68..9947dc5 100644
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--- a/build.rs
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+++ b/build.rs
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@@ -1,210 +1,10 @@
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-#[cfg(feature = "generate")]
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extern crate bindgen;
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-extern crate cc;
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extern crate pkg_config;
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use pkg_config::Config;
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use std::env;
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-use std::fmt;
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-use std::fs;
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use std::path::Path;
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-use std::path::PathBuf;
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-/// # Link Type Enumeration
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-///
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-/// Holds the different types of linking we support in this
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-/// script. Used to keep track of what the default link type is and
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-/// what override has been specified, if any, in the environment.
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-#[derive(Eq, PartialEq)]
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-enum LinkType {
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- /// Static linking. This corresponds to the `static` type in Cargo.
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- Static,
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- /// Dynamic linking. This corresponds to the `dylib` type in Cargo.
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- Dynamic,
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-}
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-
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-impl fmt::Display for LinkType {
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- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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- write!(
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- f,
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- "{}",
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- match self {
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- &LinkType::Static => "static",
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- &LinkType::Dynamic => "dylib",
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- }
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- )
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- }
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-}
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-
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-fn env_var_bool(name: &str) -> Option<bool> {
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- if name.starts_with("RUSTONIG") {
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- println!("cargo:rerun-if-env-changed={}", name);
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- }
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- env::var(name)
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- .ok()
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- .map(|s| match &s.to_string().to_lowercase()[..] {
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- "0" | "no" | "false" => false,
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- _ => true,
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- })
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-}
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-
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-/// # Link Type Override
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-///
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-/// Retuns the override from the environment, if any is set.
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-fn link_type_override() -> Option<LinkType> {
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- let dynamic_env = env_var_bool("RUSTONIG_DYNAMIC_LIBONIG").map(|b| match b {
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- true => LinkType::Dynamic,
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- false => LinkType::Static,
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- });
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- let static_env = env_var_bool("RUSTONIG_STATIC_LIBONIG").map(|b| match b {
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- true => LinkType::Static,
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- false => LinkType::Dynamic,
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- });
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-
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- dynamic_env.or(static_env)
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-}
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-
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-fn compile() {
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- bindgen_headers("oniguruma/src/oniguruma.h");
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-
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- let mut cc = cc::Build::new();
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- let out_dir = PathBuf::from(env::var("OUT_DIR").expect("OUT_DIR"));
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- let ref src = Path::new("oniguruma").join("src");
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- let config_h = out_dir.join("config.h");
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-
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- if env_var_bool("CARGO_FEATURE_PRINT_DEBUG").unwrap_or(false) {
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- cc.define("ONIG_DEBUG_PARSE", Some("1"));
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- cc.define("ONIG_DEBUG_COMPILE", Some("1"));
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- cc.define("ONIG_DEBUG_SEARCH", Some("1"));
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- cc.define("ONIG_DEBUG_MATCH", Some("1"));
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- }
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-
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- if !src.exists() {
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- panic!(
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- "Unable to find source files in {}. Is oniguruma submodule checked out?\n\
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- Try git submodule init; git submodule update",
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- src.display()
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- );
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- }
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-
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- let arch = env::var("CARGO_CFG_TARGET_ARCH");
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- let os = env::var("CARGO_CFG_TARGET_OS");
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- let bits = env::var("CARGO_CFG_TARGET_POINTER_WIDTH").unwrap();
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- if let Ok("windows") = os.as_ref().map(String::as_str) {
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- fs::copy(src.join(format!("config.h.win{}", bits)), config_h)
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- .expect("Can't copy config.h.win??");
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- } else {
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- let family = env::var("CARGO_CFG_TARGET_FAMILY");
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- if let Ok("unix") = family.as_ref().map(String::as_str) {
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- cc.define("HAVE_UNISTD_H", Some("1"));
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- cc.define("HAVE_SYS_TYPES_H", Some("1"));
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- cc.define("HAVE_SYS_TIME_H", Some("1"));
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- }
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-
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- // Can't use size_of::<c_long>(), because it'd refer to build arch, not target arch.
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- // so instead assume it's a non-exotic target (LP32/LP64).
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- fs::write(
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- config_h,
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- format!(
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- "
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- #define HAVE_PROTOTYPES 1
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- #define STDC_HEADERS 1
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- #define HAVE_STRING_H 1
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- #define HAVE_STDARG_H 1
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- #define HAVE_STDLIB_H 1
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- #define HAVE_LIMITS_H 1
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- #define HAVE_INTTYPES_H 1
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- #define SIZEOF_INT 4
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- #define SIZEOF_SHORT 2
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- #define SIZEOF_LONG {0}
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- #define SIZEOF_VOIDP {0}
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- #define SIZEOF_LONG_LONG 8
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- ",
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- if bits == "64" { "8" } else { "4" }
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- ),
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- )
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- .expect("Can't write config.h to OUT_DIR");
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- }
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- if let Ok("wasm32") = arch.as_ref().map(String::as_str) {
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- cc.define("ONIG_DISABLE_DIRECT_THREADING", Some("1"));
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- if let Ok("unknown") = os.as_ref().map(String::as_str) {
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- cc.define(
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- "ONIG_EXTERN",
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- Some(r#"__attribute__((visibility("default")))"#),
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- );
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- }
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- }
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-
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- cc.include(out_dir); // Read config.h from there
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- cc.include(src);
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-
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- let files = [
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- "regexec.c",
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- "regerror.c",
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- "regparse.c",
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- "regext.c",
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- "regcomp.c",
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- "reggnu.c",
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- "regenc.c",
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- "regsyntax.c",
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- "regtrav.c",
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- "regversion.c",
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- "st.c",
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- "onig_init.c",
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- "unicode.c",
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- "ascii.c",
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- "utf8.c",
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- "utf16_be.c",
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- "utf16_le.c",
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- "utf32_be.c",
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- "utf32_le.c",
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- "euc_jp.c",
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- "sjis.c",
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- "iso8859_1.c",
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- "iso8859_2.c",
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- "iso8859_3.c",
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- "iso8859_4.c",
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- "iso8859_5.c",
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- "iso8859_6.c",
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- "iso8859_7.c",
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- "iso8859_8.c",
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- "iso8859_9.c",
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- "iso8859_10.c",
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- "iso8859_11.c",
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- "iso8859_13.c",
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- "iso8859_14.c",
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- "iso8859_15.c",
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- "iso8859_16.c",
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- "euc_tw.c",
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- "euc_kr.c",
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- "big5.c",
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- "gb18030.c",
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- "koi8_r.c",
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- "cp1251.c",
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- "euc_jp_prop.c",
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- "sjis_prop.c",
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- "unicode_unfold_key.c",
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- "unicode_fold1_key.c",
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- "unicode_fold2_key.c",
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- "unicode_fold3_key.c",
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- ];
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- for file in files.iter() {
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- cc.file(src.join(file));
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- }
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-
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- if cfg!(feature = "posix-api") {
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- cc.file(src.join("regposix.c"));
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- cc.file(src.join("regposerr.c"));
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- }
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-
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- cc.warnings(false); // not actionable by the end user
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- cc.compile("onig");
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-}
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-
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-#[cfg(not(feature = "generate"))]
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-fn bindgen_headers(_path: &str) {}
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-
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-#[cfg(feature = "generate")]
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fn bindgen_headers(path: &str) {
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let arch = env::var("CARGO_CFG_TARGET_ARCH");
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let mut bindgen = bindgen::Builder::default()
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@@ -223,43 +23,17 @@ fn bindgen_headers(path: &str) {
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}
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pub fn main() {
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- let link_type = link_type_override();
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- let require_pkg_config = env_var_bool("RUSTONIG_SYSTEM_LIBONIG").unwrap_or(false);
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-
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- if require_pkg_config || link_type == Some(LinkType::Dynamic) {
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- let mut conf = Config::new();
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- // dynamically-generated headers can work with an older version
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- // pre-generated headers are for the latest
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- conf.atleast_version(if cfg!(feature = "generate") {
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- "6.8.0"
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- } else {
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- "6.9.3"
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- });
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- if link_type == Some(LinkType::Static) {
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- conf.statik(true);
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+ let lib = Config::new().atleast_version("6.8.0").probe("oniguruma").unwrap();
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+ for path in &lib.include_paths {
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+ let header = path.join("oniguruma.h");
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+ if header.exists() {
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+ bindgen_headers(&header.display().to_string());
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+ return;
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}
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- match conf.probe("oniguruma") {
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- Ok(lib) => {
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- for path in &lib.include_paths {
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- let header = path.join("oniguruma.h");
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- if header.exists() {
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- bindgen_headers(&header.display().to_string());
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- return;
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- }
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- }
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- if require_pkg_config {
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- panic!(
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- "Unable to find oniguruma.h in include paths from pkg-config: {:?}",
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- lib.include_paths
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- );
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- }
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- }
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- Err(ref err) if require_pkg_config => {
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- panic!("Unable to find oniguruma in pkg-config, and RUSTONIG_SYSTEM_LIBONIG is set: {}", err);
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- }
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- _ => {}
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- }
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- }
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- compile();
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+ panic!(
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+ "Unable to find oniguruma.h in include paths from pkg-config: {:?}",
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+ lib.include_paths
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+ );
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+ }
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}
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--
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2.37.1
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