| use std::env; |
| use std::path::Path; |
| |
| /// Tells whether we're building for Windows. This is more suitable than a plain |
| /// `cfg!(windows)`, since the latter does not properly handle cross-compilation |
| /// |
| /// Note that there is no way to know at compile-time which system we'll be |
| /// targetting, and this test must be made at run-time (of the build script) See |
| /// https://doc.rust-lang.org/cargo/reference/environment-variables.html#environment-variables-cargo-sets-for-build-scripts |
| fn win_target() -> bool { |
| env::var("CARGO_CFG_WINDOWS").is_ok() |
| } |
| |
| /// Tells whether we're building for Android. |
| /// See [`win_target`] |
| #[cfg(any(feature = "bundled", feature = "bundled-windows"))] |
| fn android_target() -> bool { |
| env::var("CARGO_CFG_TARGET_OS").map_or(false, |v| v == "android") |
| } |
| |
| /// Tells whether a given compiler will be used `compiler_name` is compared to |
| /// the content of `CARGO_CFG_TARGET_ENV` (and is always lowercase) |
| /// |
| /// See [`win_target`] |
| fn is_compiler(compiler_name: &str) -> bool { |
| env::var("CARGO_CFG_TARGET_ENV").map_or(false, |v| v == compiler_name) |
| } |
| |
| fn main() { |
| let out_dir = env::var("OUT_DIR").unwrap(); |
| let out_path = Path::new(&out_dir).join("bindgen.rs"); |
| if cfg!(feature = "in_gecko") { |
| // When inside mozilla-central, we are included into the build with |
| // sqlite3.o directly, so we don't want to provide any linker arguments. |
| std::fs::copy("sqlite3/bindgen_bundled_version.rs", out_path) |
| .expect("Could not copy bindings to output directory"); |
| return; |
| } |
| if cfg!(all( |
| feature = "sqlcipher", |
| not(feature = "bundled-sqlcipher") |
| )) { |
| if cfg!(feature = "bundled") || (win_target() && cfg!(feature = "bundled-windows")) { |
| println!( |
| "cargo:warning=For backwards compatibility, feature 'sqlcipher' overrides |
| features 'bundled' and 'bundled-windows'. If you want a bundled build of |
| SQLCipher (available for the moment only on Unix), use feature 'bundled-sqlcipher' |
| or 'bundled-sqlcipher-vendored-openssl' to also bundle OpenSSL crypto." |
| ); |
| } |
| build_linked::main(&out_dir, &out_path); |
| } else if cfg!(feature = "bundled") |
| || (win_target() && cfg!(feature = "bundled-windows")) |
| || cfg!(feature = "bundled-sqlcipher") |
| { |
| #[cfg(any( |
| feature = "bundled", |
| feature = "bundled-windows", |
| feature = "bundled-sqlcipher" |
| ))] |
| build_bundled::main(&out_dir, &out_path); |
| #[cfg(not(any( |
| feature = "bundled", |
| feature = "bundled-windows", |
| feature = "bundled-sqlcipher" |
| )))] |
| panic!("The runtime test should not run this branch, which has not compiled any logic.") |
| } else { |
| build_linked::main(&out_dir, &out_path); |
| } |
| } |
| |
| #[cfg(any( |
| feature = "bundled", |
| feature = "bundled-windows", |
| feature = "bundled-sqlcipher" |
| ))] |
| mod build_bundled { |
| use std::env; |
| use std::ffi::OsString; |
| use std::path::{Path, PathBuf}; |
| |
| use super::{is_compiler, win_target}; |
| |
| pub fn main(out_dir: &str, out_path: &Path) { |
| let lib_name = super::lib_name(); |
| |
| // This is just a sanity check, the top level `main` should ensure this. |
| assert!(!(cfg!(feature = "bundled-windows") && !cfg!(feature = "bundled") && !win_target()), |
| "This module should not be used: we're not on Windows and the bundled feature has not been enabled"); |
| |
| #[cfg(feature = "buildtime_bindgen")] |
| { |
| use super::{bindings, HeaderLocation}; |
| let header = HeaderLocation::FromPath(format!("{}/sqlite3.h", lib_name)); |
| bindings::write_to_out_dir(header, out_path); |
| } |
| #[cfg(not(feature = "buildtime_bindgen"))] |
| { |
| use std::fs; |
| fs::copy(format!("{}/bindgen_bundled_version.rs", lib_name), out_path) |
| .expect("Could not copy bindings to output directory"); |
| } |
| // println!("cargo:rerun-if-changed=sqlite3/sqlite3.c"); |
| // println!("cargo:rerun-if-changed=sqlcipher/sqlite3.c"); |
| println!("cargo:rerun-if-changed={}/sqlite3.c", lib_name); |
| println!("cargo:rerun-if-changed=sqlite3/wasm32-wasi-vfs.c"); |
| let mut cfg = cc::Build::new(); |
| cfg.file(format!("{}/sqlite3.c", lib_name)) |
| .flag("-DSQLITE_CORE") |
| .flag("-DSQLITE_DEFAULT_FOREIGN_KEYS=1") |
| .flag("-DSQLITE_ENABLE_API_ARMOR") |
| .flag("-DSQLITE_ENABLE_COLUMN_METADATA") |
| .flag("-DSQLITE_ENABLE_DBSTAT_VTAB") |
| .flag("-DSQLITE_ENABLE_FTS3") |
| .flag("-DSQLITE_ENABLE_FTS3_PARENTHESIS") |
| .flag("-DSQLITE_ENABLE_FTS5") |
| .flag("-DSQLITE_ENABLE_JSON1") |
| .flag("-DSQLITE_ENABLE_LOAD_EXTENSION=1") |
| .flag("-DSQLITE_ENABLE_MEMORY_MANAGEMENT") |
| .flag("-DSQLITE_ENABLE_RTREE") |
| .flag("-DSQLITE_ENABLE_STAT2") |
| .flag("-DSQLITE_ENABLE_STAT4") |
| .flag("-DSQLITE_SOUNDEX") |
| .flag("-DSQLITE_THREADSAFE=1") |
| .flag("-DSQLITE_USE_URI") |
| .flag("-DHAVE_USLEEP=1") |
| .flag("-D_POSIX_THREAD_SAFE_FUNCTIONS") // cross compile with MinGW |
| .warnings(false); |
| |
| if cfg!(feature = "bundled-sqlcipher") { |
| cfg.flag("-DSQLITE_HAS_CODEC").flag("-DSQLITE_TEMP_STORE=2"); |
| |
| let target = env::var("TARGET").unwrap(); |
| let host = env::var("HOST").unwrap(); |
| |
| let is_windows = host.contains("windows") && target.contains("windows"); |
| let is_apple = host.contains("apple") && target.contains("apple"); |
| |
| let lib_dir = env("OPENSSL_LIB_DIR").map(PathBuf::from); |
| let inc_dir = env("OPENSSL_INCLUDE_DIR").map(PathBuf::from); |
| let mut use_openssl = false; |
| |
| let (lib_dir, inc_dir) = match (lib_dir, inc_dir) { |
| (Some(lib_dir), Some(inc_dir)) => { |
| use_openssl = true; |
| (lib_dir, inc_dir) |
| } |
| (lib_dir, inc_dir) => match find_openssl_dir(&host, &target) { |
| None => { |
| if is_windows && !cfg!(feature = "bundled-sqlcipher-vendored-openssl") { |
| panic!("Missing environment variable OPENSSL_DIR or OPENSSL_DIR is not set") |
| } else { |
| (PathBuf::new(), PathBuf::new()) |
| } |
| } |
| Some(openssl_dir) => { |
| let lib_dir = lib_dir.unwrap_or_else(|| openssl_dir.join("lib")); |
| let inc_dir = inc_dir.unwrap_or_else(|| openssl_dir.join("include")); |
| |
| assert!( |
| Path::new(&lib_dir).exists(), |
| "OpenSSL library directory does not exist: {}", |
| lib_dir.to_string_lossy() |
| ); |
| |
| if !Path::new(&inc_dir).exists() { |
| panic!( |
| "OpenSSL include directory does not exist: {}", |
| inc_dir.to_string_lossy() |
| ); |
| } |
| |
| use_openssl = true; |
| (lib_dir, inc_dir) |
| } |
| }, |
| }; |
| |
| if cfg!(feature = "bundled-sqlcipher-vendored-openssl") { |
| cfg.include(env::var("DEP_OPENSSL_INCLUDE").unwrap()); |
| // cargo will resolve downstream to the static lib in |
| // openssl-sys |
| } else if is_windows { |
| // Windows without `-vendored-openssl` takes this to link against a prebuilt |
| // OpenSSL lib |
| cfg.include(inc_dir.to_string_lossy().as_ref()); |
| let lib = lib_dir.join("libcrypto.lib"); |
| cfg.flag(lib.to_string_lossy().as_ref()); |
| } else if use_openssl { |
| cfg.include(inc_dir.to_string_lossy().as_ref()); |
| // branch not taken on Windows, just `crypto` is fine. |
| println!("cargo:rustc-link-lib=dylib=crypto"); |
| println!("cargo:rustc-link-search={}", lib_dir.to_string_lossy()); |
| } else if is_apple { |
| cfg.flag("-DSQLCIPHER_CRYPTO_CC"); |
| println!("cargo:rustc-link-lib=framework=Security"); |
| println!("cargo:rustc-link-lib=framework=CoreFoundation"); |
| } else { |
| // branch not taken on Windows, just `crypto` is fine. |
| println!("cargo:rustc-link-lib=dylib=crypto"); |
| } |
| } |
| |
| // on android sqlite can't figure out where to put the temp files. |
| // the bundled sqlite on android also uses `SQLITE_TEMP_STORE=3`. |
| // https://android.googlesource.com/platform/external/sqlite/+/2c8c9ae3b7e6f340a19a0001c2a889a211c9d8b2/dist/Android.mk |
| if super::android_target() { |
| cfg.flag("-DSQLITE_TEMP_STORE=3"); |
| } |
| |
| if cfg!(feature = "with-asan") { |
| cfg.flag("-fsanitize=address"); |
| } |
| |
| // If explicitly requested: enable static linking against the Microsoft Visual |
| // C++ Runtime to avoid dependencies on vcruntime140.dll and similar libraries. |
| if cfg!(target_feature = "crt-static") && is_compiler("msvc") { |
| cfg.static_crt(true); |
| } |
| |
| // Older versions of visual studio don't support c99 (including isnan), which |
| // causes a build failure when the linker fails to find the `isnan` |
| // function. `sqlite` provides its own implementation, using the fact |
| // that x != x when x is NaN. |
| // |
| // There may be other platforms that don't support `isnan`, they should be |
| // tested for here. |
| if is_compiler("msvc") { |
| use cc::windows_registry::{find_vs_version, VsVers}; |
| let vs_has_nan = match find_vs_version() { |
| Ok(ver) => ver != VsVers::Vs12, |
| Err(_msg) => false, |
| }; |
| if vs_has_nan { |
| cfg.flag("-DHAVE_ISNAN"); |
| } |
| } else { |
| cfg.flag("-DHAVE_ISNAN"); |
| } |
| if !win_target() { |
| cfg.flag("-DHAVE_LOCALTIME_R"); |
| } |
| // Target wasm32-wasi can't compile the default VFS |
| if is_compiler("wasm32-wasi") { |
| cfg.flag("-DSQLITE_OS_OTHER") |
| // https://github.com/rust-lang/rust/issues/74393 |
| .flag("-DLONGDOUBLE_TYPE=double"); |
| if cfg!(feature = "wasm32-wasi-vfs") { |
| cfg.file("sqlite3/wasm32-wasi-vfs.c"); |
| } |
| } |
| if cfg!(feature = "unlock_notify") { |
| cfg.flag("-DSQLITE_ENABLE_UNLOCK_NOTIFY"); |
| } |
| if cfg!(feature = "preupdate_hook") { |
| cfg.flag("-DSQLITE_ENABLE_PREUPDATE_HOOK"); |
| } |
| if cfg!(feature = "session") { |
| cfg.flag("-DSQLITE_ENABLE_SESSION"); |
| } |
| |
| if let Ok(limit) = env::var("SQLITE_MAX_VARIABLE_NUMBER") { |
| cfg.flag(&format!("-DSQLITE_MAX_VARIABLE_NUMBER={}", limit)); |
| } |
| println!("cargo:rerun-if-env-changed=SQLITE_MAX_VARIABLE_NUMBER"); |
| |
| if let Ok(limit) = env::var("SQLITE_MAX_EXPR_DEPTH") { |
| cfg.flag(&format!("-DSQLITE_MAX_EXPR_DEPTH={}", limit)); |
| } |
| println!("cargo:rerun-if-env-changed=SQLITE_MAX_EXPR_DEPTH"); |
| |
| if let Ok(extras) = env::var("LIBSQLITE3_FLAGS") { |
| for extra in extras.split_whitespace() { |
| if extra.starts_with("-D") || extra.starts_with("-U") { |
| cfg.flag(extra); |
| } else if extra.starts_with("SQLITE_") { |
| cfg.flag(&format!("-D{}", extra)); |
| } else { |
| panic!("Don't understand {} in LIBSQLITE3_FLAGS", extra); |
| } |
| } |
| } |
| println!("cargo:rerun-if-env-changed=LIBSQLITE3_FLAGS"); |
| |
| cfg.compile(lib_name); |
| |
| println!("cargo:lib_dir={}", out_dir); |
| } |
| |
| fn env(name: &str) -> Option<OsString> { |
| let prefix = env::var("TARGET").unwrap().to_uppercase().replace('-', "_"); |
| let prefixed = format!("{}_{}", prefix, name); |
| let var = env::var_os(&prefixed); |
| |
| match var { |
| None => env::var_os(name), |
| _ => var, |
| } |
| } |
| |
| fn find_openssl_dir(_host: &str, _target: &str) -> Option<PathBuf> { |
| let openssl_dir = env("OPENSSL_DIR"); |
| openssl_dir.map(PathBuf::from) |
| } |
| } |
| |
| fn env_prefix() -> &'static str { |
| if cfg!(any(feature = "sqlcipher", feature = "bundled-sqlcipher")) { |
| "SQLCIPHER" |
| } else { |
| "SQLITE3" |
| } |
| } |
| |
| fn lib_name() -> &'static str { |
| if cfg!(any(feature = "sqlcipher", feature = "bundled-sqlcipher")) { |
| "sqlcipher" |
| } else if cfg!(all(windows, feature = "winsqlite3")) { |
| "winsqlite3" |
| } else { |
| "sqlite3" |
| } |
| } |
| |
| pub enum HeaderLocation { |
| FromEnvironment, |
| Wrapper, |
| FromPath(String), |
| } |
| |
| impl From<HeaderLocation> for String { |
| fn from(header: HeaderLocation) -> String { |
| match header { |
| HeaderLocation::FromEnvironment => { |
| let prefix = env_prefix(); |
| let mut header = env::var(format!("{}_INCLUDE_DIR", prefix)).unwrap_or_else(|_| { |
| panic!( |
| "{}_INCLUDE_DIR must be set if {}_LIB_DIR is set", |
| prefix, prefix |
| ) |
| }); |
| header.push_str("/sqlite3.h"); |
| header |
| } |
| HeaderLocation::Wrapper => "wrapper.h".into(), |
| HeaderLocation::FromPath(path) => path, |
| } |
| } |
| } |
| |
| mod build_linked { |
| #[cfg(feature = "vcpkg")] |
| extern crate vcpkg; |
| |
| use super::{bindings, env_prefix, is_compiler, lib_name, win_target, HeaderLocation}; |
| use std::env; |
| use std::path::Path; |
| |
| pub fn main(_out_dir: &str, out_path: &Path) { |
| let header = find_sqlite(); |
| if (cfg!(any( |
| feature = "bundled_bindings", |
| feature = "bundled", |
| feature = "bundled-sqlcipher" |
| )) || (win_target() && cfg!(feature = "bundled-windows"))) |
| && !cfg!(feature = "buildtime_bindgen") |
| { |
| // Generally means the `bundled_bindings` feature is enabled. |
| // Most users are better off with turning |
| // on buildtime_bindgen instead, but this is still supported as we |
| // have runtime version checks and there are good reasons to not |
| // want to run bindgen. |
| std::fs::copy( |
| format!("{}/bindgen_bundled_version.rs", lib_name()), |
| out_path, |
| ) |
| .expect("Could not copy bindings to output directory"); |
| } else { |
| bindings::write_to_out_dir(header, out_path); |
| } |
| } |
| |
| fn find_link_mode() -> &'static str { |
| // If the user specifies SQLITE3_STATIC (or SQLCIPHER_STATIC), do static |
| // linking, unless it's explicitly set to 0. |
| match &env::var(format!("{}_STATIC", env_prefix())) { |
| Ok(v) if v != "0" => "static", |
| _ => "dylib", |
| } |
| } |
| // Prints the necessary cargo link commands and returns the path to the header. |
| fn find_sqlite() -> HeaderLocation { |
| let link_lib = lib_name(); |
| |
| println!("cargo:rerun-if-env-changed={}_INCLUDE_DIR", env_prefix()); |
| println!("cargo:rerun-if-env-changed={}_LIB_DIR", env_prefix()); |
| println!("cargo:rerun-if-env-changed={}_STATIC", env_prefix()); |
| if cfg!(feature = "vcpkg") && is_compiler("msvc") { |
| println!("cargo:rerun-if-env-changed=VCPKGRS_DYNAMIC"); |
| } |
| |
| // dependents can access `DEP_SQLITE3_LINK_TARGET` (`sqlite3` being the |
| // `links=` value in our Cargo.toml) to get this value. This might be |
| // useful if you need to ensure whatever crypto library sqlcipher relies |
| // on is available, for example. |
| println!("cargo:link-target={}", link_lib); |
| |
| if win_target() && cfg!(feature = "winsqlite3") { |
| println!("cargo:rustc-link-lib=dylib={}", link_lib); |
| return HeaderLocation::Wrapper; |
| } |
| |
| // Allow users to specify where to find SQLite. |
| if let Ok(dir) = env::var(format!("{}_LIB_DIR", env_prefix())) { |
| // Try to use pkg-config to determine link commands |
| let pkgconfig_path = Path::new(&dir).join("pkgconfig"); |
| env::set_var("PKG_CONFIG_PATH", pkgconfig_path); |
| if pkg_config::Config::new().probe(link_lib).is_err() { |
| // Otherwise just emit the bare minimum link commands. |
| println!("cargo:rustc-link-lib={}={}", find_link_mode(), link_lib); |
| println!("cargo:rustc-link-search={}", dir); |
| } |
| return HeaderLocation::FromEnvironment; |
| } |
| |
| if let Some(header) = try_vcpkg() { |
| return header; |
| } |
| |
| // See if pkg-config can do everything for us. |
| if let Ok(mut lib) = pkg_config::Config::new() |
| .print_system_libs(false) |
| .probe(link_lib) |
| { |
| if let Some(mut header) = lib.include_paths.pop() { |
| header.push("sqlite3.h"); |
| HeaderLocation::FromPath(header.to_string_lossy().into()) |
| } else { |
| HeaderLocation::Wrapper |
| } |
| } else { |
| // No env var set and pkg-config couldn't help; just output the link-lib |
| // request and hope that the library exists on the system paths. We used to |
| // output /usr/lib explicitly, but that can introduce other linking problems; |
| // see https://github.com/rusqlite/rusqlite/issues/207. |
| println!("cargo:rustc-link-lib={}={}", find_link_mode(), link_lib); |
| HeaderLocation::Wrapper |
| } |
| } |
| |
| fn try_vcpkg() -> Option<HeaderLocation> { |
| if cfg!(feature = "vcpkg") && is_compiler("msvc") { |
| // See if vcpkg can find it. |
| if let Ok(mut lib) = vcpkg::Config::new().probe(lib_name()) { |
| if let Some(mut header) = lib.include_paths.pop() { |
| header.push("sqlite3.h"); |
| return Some(HeaderLocation::FromPath(header.to_string_lossy().into())); |
| } |
| } |
| None |
| } else { |
| None |
| } |
| } |
| } |
| |
| #[cfg(not(feature = "buildtime_bindgen"))] |
| mod bindings { |
| #![allow(dead_code)] |
| use super::HeaderLocation; |
| |
| use std::fs; |
| use std::path::Path; |
| |
| static PREBUILT_BINDGEN_PATHS: &[&str] = &[ |
| "bindgen-bindings/bindgen_3.6.8.rs", |
| #[cfg(feature = "min_sqlite_version_3_6_23")] |
| "bindgen-bindings/bindgen_3.6.23.rs", |
| #[cfg(feature = "min_sqlite_version_3_7_7")] |
| "bindgen-bindings/bindgen_3.7.7.rs", |
| #[cfg(feature = "min_sqlite_version_3_7_16")] |
| "bindgen-bindings/bindgen_3.7.16.rs", |
| ]; |
| |
| pub fn write_to_out_dir(_header: HeaderLocation, out_path: &Path) { |
| let in_path = PREBUILT_BINDGEN_PATHS[PREBUILT_BINDGEN_PATHS.len() - 1]; |
| fs::copy(in_path, out_path).expect("Could not copy bindings to output directory"); |
| } |
| } |
| |
| #[cfg(feature = "buildtime_bindgen")] |
| mod bindings { |
| use super::HeaderLocation; |
| use bindgen::callbacks::{IntKind, ParseCallbacks}; |
| |
| use std::fs::OpenOptions; |
| use std::io::Write; |
| use std::path::Path; |
| |
| use super::win_target; |
| |
| #[derive(Debug)] |
| struct SqliteTypeChooser; |
| |
| impl ParseCallbacks for SqliteTypeChooser { |
| fn int_macro(&self, _name: &str, value: i64) -> Option<IntKind> { |
| if value >= i32::MIN as i64 && value <= i32::MAX as i64 { |
| Some(IntKind::I32) |
| } else { |
| None |
| } |
| } |
| } |
| |
| // Are we generating the bundled bindings? Used to avoid emitting things |
| // that would be problematic in bundled builds. This env var is set by |
| // `upgrade.sh`. |
| fn generating_bundled_bindings() -> bool { |
| // Hacky way to know if we're generating the bundled bindings |
| println!("cargo:rerun-if-env-changed=LIBSQLITE3_SYS_BUNDLING"); |
| match std::env::var("LIBSQLITE3_SYS_BUNDLING") { |
| Ok(v) => v != "0", |
| Err(_) => false, |
| } |
| } |
| |
| pub fn write_to_out_dir(header: HeaderLocation, out_path: &Path) { |
| let header: String = header.into(); |
| let mut output = Vec::new(); |
| let mut bindings = bindgen::builder() |
| .trust_clang_mangling(false) |
| .header(header.clone()) |
| .parse_callbacks(Box::new(SqliteTypeChooser)) |
| .rustfmt_bindings(true); |
| |
| if cfg!(any(feature = "sqlcipher", feature = "bundled-sqlcipher")) { |
| bindings = bindings.clang_arg("-DSQLITE_HAS_CODEC"); |
| } |
| if cfg!(feature = "unlock_notify") { |
| bindings = bindings.clang_arg("-DSQLITE_ENABLE_UNLOCK_NOTIFY"); |
| } |
| if cfg!(feature = "preupdate_hook") { |
| bindings = bindings.clang_arg("-DSQLITE_ENABLE_PREUPDATE_HOOK"); |
| } |
| if cfg!(feature = "session") { |
| bindings = bindings.clang_arg("-DSQLITE_ENABLE_SESSION"); |
| } |
| if win_target() && cfg!(feature = "winsqlite3") { |
| bindings = bindings |
| .clang_arg("-DBINDGEN_USE_WINSQLITE3") |
| .blocklist_item("NTDDI_.+") |
| .blocklist_item("WINAPI_FAMILY.*") |
| .blocklist_item("_WIN32_.+") |
| .blocklist_item("_VCRT_COMPILER_PREPROCESSOR") |
| .blocklist_item("_SAL_VERSION") |
| .blocklist_item("__SAL_H_VERSION") |
| .blocklist_item("_USE_DECLSPECS_FOR_SAL") |
| .blocklist_item("_USE_ATTRIBUTES_FOR_SAL") |
| .blocklist_item("_CRT_PACKING") |
| .blocklist_item("_HAS_EXCEPTIONS") |
| .blocklist_item("_STL_LANG") |
| .blocklist_item("_HAS_CXX17") |
| .blocklist_item("_HAS_CXX20") |
| .blocklist_item("_HAS_NODISCARD") |
| .blocklist_item("WDK_NTDDI_VERSION") |
| .blocklist_item("OSVERSION_MASK") |
| .blocklist_item("SPVERSION_MASK") |
| .blocklist_item("SUBVERSION_MASK") |
| .blocklist_item("WINVER") |
| .blocklist_item("__security_cookie") |
| .blocklist_type("size_t") |
| .blocklist_type("__vcrt_bool") |
| .blocklist_type("wchar_t") |
| .blocklist_function("__security_init_cookie") |
| .blocklist_function("__report_gsfailure") |
| .blocklist_function("__va_start"); |
| } |
| |
| // When cross compiling unless effort is taken to fix the issue, bindgen |
| // will find the wrong headers. There's only one header included by the |
| // amalgamated `sqlite.h`: `stdarg.h`. |
| // |
| // Thankfully, there's almost no case where rust code needs to use |
| // functions taking `va_list` (It's nearly impossible to get a `va_list` |
| // in Rust unless you get passed it by C code for some reason). |
| // |
| // Arguably, we should never be including these, but we include them for |
| // the cases where they aren't totally broken... |
| let target_arch = std::env::var("TARGET").unwrap(); |
| let host_arch = std::env::var("HOST").unwrap(); |
| let is_cross_compiling = target_arch != host_arch; |
| |
| // Note that when generating the bundled file, we're essentially always |
| // cross compiling. |
| if generating_bundled_bindings() || is_cross_compiling { |
| // Get rid of va_list, as it's not |
| bindings = bindings |
| .blocklist_function("sqlite3_vmprintf") |
| .blocklist_function("sqlite3_vsnprintf") |
| .blocklist_function("sqlite3_str_vappendf") |
| .blocklist_type("va_list") |
| .blocklist_type("__builtin_va_list") |
| .blocklist_type("__gnuc_va_list") |
| .blocklist_type("__va_list_tag") |
| .blocklist_item("__GNUC_VA_LIST"); |
| } |
| |
| bindings |
| .generate() |
| .unwrap_or_else(|_| panic!("could not run bindgen on header {}", header)) |
| .write(Box::new(&mut output)) |
| .expect("could not write output of bindgen"); |
| let mut output = String::from_utf8(output).expect("bindgen output was not UTF-8?!"); |
| |
| // rusqlite's functions feature ors in the SQLITE_DETERMINISTIC flag when it |
| // can. This flag was added in SQLite 3.8.3, but oring it in in prior |
| // versions of SQLite is harmless. We don't want to not build just |
| // because this flag is missing (e.g., if we're linking against |
| // SQLite 3.7.x), so append the flag manually if it isn't present in bindgen's |
| // output. |
| if !output.contains("pub const SQLITE_DETERMINISTIC") { |
| output.push_str("\npub const SQLITE_DETERMINISTIC: i32 = 2048;\n"); |
| } |
| |
| let mut file = OpenOptions::new() |
| .write(true) |
| .truncate(true) |
| .create(true) |
| .open(out_path) |
| .unwrap_or_else(|_| panic!("Could not write to {:?}", out_path)); |
| |
| file.write_all(output.as_bytes()) |
| .unwrap_or_else(|_| panic!("Could not write to {:?}", out_path)); |
| } |
| } |
