use std::env; use std::fs; use std::path::{Path, PathBuf}; use std::process::Command; fn main() { println!("cargo:rerun-if-changed=curl"); let host = env::var("HOST").unwrap(); let target = env::var("TARGET").unwrap(); let windows = target.contains("windows"); let curlname = if cfg!(feature = "impersonate-chrome") { "curl-impersonate-chrome" } else if cfg!(feature = "impersonate-ff") { "curl-impersonate-ff" } else { "curl" }; let libname = format!("lib{curlname}"); let configname = format!("{curlname}-config"); if cfg!(feature = "mesalink") { println!("cargo:warning=MesaLink support has been removed as of curl 7.82.0, will use default TLS backend instead."); } if cfg!(feature = "impersonate-chrome") && cfg!(feature = "impersonate-ff") { panic!("impersonate-chrome and impersonate-ff features cannot be both enabled"); } if (cfg!(feature = "impersonate-chrome") || cfg!(feature = "impersonate-ff")) && cfg!(feature = "static-curl") { panic!( "impersonate-chrome and impersonate-ff features don't work together with static-curl" ); } // This feature trumps all others, and is largely set by rustbuild to force // usage of the system library to ensure that we're always building an // ABI-compatible Cargo. if cfg!(feature = "force-system-lib-on-osx") && target.contains("apple") { return println!("cargo:rustc-flags=-l curl"); } // When cross-compiling for Haiku, use the system's default supplied // libcurl (it supports http2). This is in the case where rustc and // cargo are built for Haiku, which is done from a Linux host. if host != target && target.contains("haiku") { return println!("cargo:rustc-flags=-l curl"); } // If the static-curl feature is disabled, probe for a system-wide libcurl. if !cfg!(feature = "static-curl") { // OSX ships libcurl by default, so we just use that version // so long as it has the right features enabled. if target.contains("apple") && (!cfg!(feature = "http2") || curl_config_reports_http2(&configname, &libname)) { return println!("cargo:rustc-flags=-l curl"); } // Next, fall back and try to use pkg-config if its available. if windows { if try_vcpkg() { return; } } else if try_pkg_config(&configname, &libname) { return; } } if cfg!(feature = "impersonate-chrome") || cfg!(feature = "impersonate-ff") { panic!( "impersonate feature is enabled, but {} was not found in system. fallback to static not available", libname ); } if !Path::new("curl/.git").exists() { let _ = Command::new("git") .args(&["submodule", "update", "--init"]) .status(); } if target.contains("apple") { // On (older) OSX we need to link against the clang runtime, // which is hidden in some non-default path. // // More details at https://github.com/alexcrichton/curl-rust/issues/279. if let Some(path) = macos_link_search_path() { println!("cargo:rustc-link-lib=clang_rt.osx"); println!("cargo:rustc-link-search={}", path); } } let dst = PathBuf::from(env::var_os("OUT_DIR").unwrap()); let include = dst.join("include"); let build = dst.join("build"); println!("cargo:root={}", dst.display()); println!("cargo:include={}", include.display()); println!("cargo:static=1"); println!("cargo:rustc-cfg=libcurl_vendored"); fs::create_dir_all(include.join("curl")).unwrap(); for header in [ "curl.h", "curlver.h", "easy.h", "options.h", "header.h", "mprintf.h", "multi.h", "stdcheaders.h", "system.h", "urlapi.h", "typecheck-gcc.h", "websockets.h", ] .iter() { fs::copy( format!("curl/include/curl/{}", header), include.join("curl").join(header), ) .unwrap(); } let pkgconfig = dst.join("lib/pkgconfig"); fs::create_dir_all(&pkgconfig).unwrap(); let contents = fs::read_to_string("curl/libcurl.pc.in").unwrap(); fs::write( pkgconfig.join("libcurl.pc"), contents .replace("@prefix@", dst.to_str().unwrap()) .replace("@exec_prefix@", "") .replace("@libdir@", dst.join("lib").to_str().unwrap()) .replace("@includedir@", include.to_str().unwrap()) .replace("@CPPFLAG_CURL_STATICLIB@", "-DCURL_STATICLIB") .replace("@LIBCURL_LIBS@", "") .replace("@SUPPORT_FEATURES@", "") .replace("@SUPPORT_PROTOCOLS@", "") .replace("@CURLVERSION@", "7.61.1"), ) .unwrap(); let mut cfg = cc::Build::new(); cfg.out_dir(&build) .include("curl/lib") .include("curl/include") .define("BUILDING_LIBCURL", None) .define("CURL_DISABLE_DICT", None) .define("CURL_DISABLE_GOPHER", None) .define("CURL_DISABLE_IMAP", None) .define("CURL_DISABLE_LDAP", None) .define("CURL_DISABLE_LDAPS", None) .define("CURL_DISABLE_POP3", None) .define("CURL_DISABLE_RTSP", None) .define("CURL_DISABLE_SMB", None) .define("CURL_DISABLE_SMTP", None) .define("CURL_DISABLE_TELNET", None) .define("CURL_DISABLE_TFTP", None) .define("CURL_STATICLIB", None) .define("ENABLE_IPV6", None) .define("HAVE_ASSERT_H", None) .define("OS", "\"unknown\"") // TODO .define("HAVE_ZLIB_H", None) .define("HAVE_LONGLONG", None) .define("HAVE_LIBZ", None) .define("HAVE_BOOL_T", None) .define("HAVE_STDBOOL_H", None) .file("curl/lib/asyn-thread.c") .file("curl/lib/altsvc.c") .file("curl/lib/base64.c") .file("curl/lib/bufref.c") .file("curl/lib/conncache.c") .file("curl/lib/connect.c") .file("curl/lib/content_encoding.c") .file("curl/lib/cookie.c") .file("curl/lib/curl_addrinfo.c") .file("curl/lib/curl_get_line.c") .file("curl/lib/curl_memrchr.c") .file("curl/lib/curl_range.c") .file("curl/lib/curl_threads.c") .file("curl/lib/doh.c") .file("curl/lib/dynbuf.c") .file("curl/lib/easy.c") .file("curl/lib/escape.c") .file("curl/lib/file.c") .file("curl/lib/fileinfo.c") .file("curl/lib/fopen.c") .file("curl/lib/formdata.c") .file("curl/lib/getenv.c") .file("curl/lib/getinfo.c") .file("curl/lib/hash.c") .file("curl/lib/headers.c") .file("curl/lib/hmac.c") .file("curl/lib/hostasyn.c") .file("curl/lib/hostip.c") .file("curl/lib/hostip6.c") .file("curl/lib/hsts.c") .file("curl/lib/http.c") .file("curl/lib/http_aws_sigv4.c") .file("curl/lib/http_chunks.c") .file("curl/lib/http_digest.c") .file("curl/lib/http_proxy.c") .file("curl/lib/if2ip.c") .file("curl/lib/inet_ntop.c") .file("curl/lib/inet_pton.c") .file("curl/lib/llist.c") .file("curl/lib/md5.c") .file("curl/lib/mime.c") .file("curl/lib/mprintf.c") .file("curl/lib/mqtt.c") .file("curl/lib/multi.c") .file("curl/lib/netrc.c") .file("curl/lib/nonblock.c") .file("curl/lib/noproxy.c") .file("curl/lib/parsedate.c") .file("curl/lib/progress.c") .file("curl/lib/rand.c") .file("curl/lib/rename.c") .file("curl/lib/select.c") .file("curl/lib/sendf.c") .file("curl/lib/setopt.c") .file("curl/lib/sha256.c") .file("curl/lib/share.c") .file("curl/lib/slist.c") .file("curl/lib/socks.c") .file("curl/lib/socketpair.c") .file("curl/lib/speedcheck.c") .file("curl/lib/splay.c") .file("curl/lib/strcase.c") .file("curl/lib/strdup.c") .file("curl/lib/strerror.c") .file("curl/lib/strtok.c") .file("curl/lib/strtoofft.c") .file("curl/lib/timeval.c") .file("curl/lib/transfer.c") .file("curl/lib/url.c") .file("curl/lib/urlapi.c") .file("curl/lib/version.c") .file("curl/lib/vauth/digest.c") .file("curl/lib/vauth/vauth.c") .file("curl/lib/vtls/hostcheck.c") .file("curl/lib/vtls/keylog.c") .file("curl/lib/vtls/vtls.c") .file("curl/lib/warnless.c") .file("curl/lib/wildcard.c") .file("curl/lib/timediff.c") .define("HAVE_GETADDRINFO", None) .define("HAVE_GETPEERNAME", None) .define("HAVE_GETSOCKNAME", None) .warnings(false); if cfg!(feature = "ntlm") { cfg.file("curl/lib/curl_des.c") .file("curl/lib/curl_endian.c") .file("curl/lib/curl_gethostname.c") .file("curl/lib/curl_ntlm_core.c") .file("curl/lib/curl_ntlm_wb.c") .file("curl/lib/http_ntlm.c") .file("curl/lib/md4.c") .file("curl/lib/vauth/ntlm.c") .file("curl/lib/vauth/ntlm_sspi.c"); } else { cfg.define("CURL_DISABLE_NTLM", None); } if cfg!(feature = "protocol-ftp") { cfg.file("curl/lib/curl_fnmatch.c") .file("curl/lib/ftp.c") .file("curl/lib/ftplistparser.c") .file("curl/lib/pingpong.c"); } else { cfg.define("CURL_DISABLE_FTP", None); } if cfg!(feature = "http2") { cfg.define("USE_NGHTTP2", None) .define("NGHTTP2_STATICLIB", None) .file("curl/lib/h2h3.c") .file("curl/lib/http2.c"); println!("cargo:rustc-cfg=link_libnghttp2"); if let Some(path) = env::var_os("DEP_NGHTTP2_ROOT") { let path = PathBuf::from(path); cfg.include(path.join("include")); } } println!("cargo:rustc-cfg=link_libz"); if let Some(path) = env::var_os("DEP_Z_INCLUDE") { cfg.include(path); } if cfg!(feature = "spnego") { cfg.define("USE_SPNEGO", None) .file("curl/lib/http_negotiate.c") .file("curl/lib/vauth/vauth.c"); } // Configure TLS backend. Since Cargo does not support mutually exclusive // features, make sure we only compile one vtls. if cfg!(feature = "rustls") { cfg.define("USE_RUSTLS", None) .file("curl/lib/vtls/rustls.c") .include(env::var_os("DEP_RUSTLS_FFI_INCLUDE").unwrap()); } else if cfg!(feature = "windows-static-ssl") { if windows { cfg.define("USE_OPENSSL", None) .file("curl/lib/vtls/openssl.c"); // We need both openssl and zlib // Those can be installed with // ```shell // git clone https://github.com/microsoft/vcpkg // cd vcpkg // ./bootstrap-vcpkg.bat -disableMetrics // ./vcpkg.exe integrate install // ./vcpkg.exe install openssl:x64-windows-static-md // ``` #[cfg(target_env = "msvc")] vcpkg::Config::new().find_package("openssl").ok(); #[cfg(target_env = "msvc")] vcpkg::Config::new().find_package("zlib").ok(); } else { panic!("Not available on non windows platform") } } else if cfg!(feature = "ssl") { if windows { // For windows, spnego feature is auto on in case ssl feature is on. // Please see definition of USE_SPNEGO in curl_setup.h for more info. cfg.define("USE_WINDOWS_SSPI", None) .define("USE_SCHANNEL", None) .file("curl/lib/http_negotiate.c") .file("curl/lib/curl_sspi.c") .file("curl/lib/socks_sspi.c") .file("curl/lib/vauth/spnego_sspi.c") .file("curl/lib/vauth/vauth.c") .file("curl/lib/vtls/schannel.c") .file("curl/lib/vtls/schannel_verify.c") .file("curl/lib/vtls/x509asn1.c"); } else if target.contains("-apple-") { cfg.define("USE_SECTRANSP", None) .file("curl/lib/vtls/sectransp.c") .file("curl/lib/vtls/x509asn1.c"); if xcode_major_version().map_or(true, |v| v >= 9) { // On earlier Xcode versions (<9), defining HAVE_BUILTIN_AVAILABLE // would cause __bultin_available() to fail to compile due to // unrecognized platform names, so we try to check for Xcode // version first (if unknown, assume it's recent, as in >= 9). cfg.define("HAVE_BUILTIN_AVAILABLE", "1"); } } else { cfg.define("USE_OPENSSL", None) .file("curl/lib/vtls/openssl.c"); println!("cargo:rustc-cfg=link_openssl"); if let Some(path) = env::var_os("DEP_OPENSSL_INCLUDE") { cfg.include(path); } } } // Configure platform-specific details. if windows { cfg.define("WIN32", None) .define("USE_THREADS_WIN32", None) .define("HAVE_IOCTLSOCKET_FIONBIO", None) .define("USE_WINSOCK", None) .file("curl/lib/bufref.c") .file("curl/lib/system_win32.c") .file("curl/lib/version_win32.c") .file("curl/lib/vauth/digest_sspi.c") .file("curl/lib/curl_multibyte.c"); if cfg!(feature = "spnego") { cfg.file("curl/lib/vauth/spnego_sspi.c"); } } else { cfg.define("RECV_TYPE_ARG1", "int") .define("HAVE_PTHREAD_H", None) .define("HAVE_ARPA_INET_H", None) .define("HAVE_ERRNO_H", None) .define("HAVE_FCNTL_H", None) .define("HAVE_NETDB_H", None) .define("HAVE_NETINET_IN_H", None) .define("HAVE_NETINET_TCP_H", None) .define("HAVE_POLL_H", None) .define("HAVE_FCNTL_O_NONBLOCK", None) .define("HAVE_SYS_SELECT_H", None) .define("HAVE_SYS_STAT_H", None) .define("HAVE_SYS_TIME_H", None) .define("HAVE_UNISTD_H", None) .define("HAVE_RECV", None) .define("HAVE_SELECT", None) .define("HAVE_SEND", None) .define("HAVE_SOCKET", None) .define("HAVE_STERRROR_R", None) .define("HAVE_SOCKETPAIR", None) .define("HAVE_STRUCT_TIMEVAL", None) .define("HAVE_SYS_UN_H", None) .define("USE_THREADS_POSIX", None) .define("USE_UNIX_SOCKETS", None) .define("RECV_TYPE_ARG2", "void*") .define("RECV_TYPE_ARG3", "size_t") .define("RECV_TYPE_ARG4", "int") .define("RECV_TYPE_RETV", "ssize_t") .define("SEND_QUAL_ARG2", "const") .define("SEND_TYPE_ARG1", "int") .define("SEND_TYPE_ARG2", "void*") .define("SEND_TYPE_ARG3", "size_t") .define("SEND_TYPE_ARG4", "int") .define("SEND_TYPE_RETV", "ssize_t") .define("SIZEOF_CURL_OFF_T", "8") .define("SIZEOF_INT", "4") .define("SIZEOF_SHORT", "2"); if target.contains("-apple-") { cfg.define("__APPLE__", None) .define("macintosh", None) .define("HAVE_MACH_ABSOLUTE_TIME", None); } else { cfg.define("HAVE_CLOCK_GETTIME_MONOTONIC", None) .define("HAVE_GETTIMEOFDAY", None) // poll() on various versions of macOS are janky, so only use it // on non-macOS unix-likes. This matches the official default // build configuration as well. .define("HAVE_POLL_FINE", None); } if cfg!(feature = "spnego") { cfg.define("HAVE_GSSAPI", None) .file("curl/lib/curl_gssapi.c") .file("curl/lib/socks_gssapi.c") .file("curl/lib/vauth/spnego_gssapi.c"); if let Some(path) = env::var_os("GSSAPI_ROOT") { let path = PathBuf::from(path); cfg.include(path.join("include")); } // Link against the MIT gssapi library. It might be desirable to add support for // choosing between MIT and Heimdal libraries in the future. println!("cargo:rustc-link-lib=gssapi_krb5"); } let width = env::var("CARGO_CFG_TARGET_POINTER_WIDTH") .unwrap() .parse::() .unwrap(); cfg.define("SIZEOF_SSIZE_T", Some(&(width / 8).to_string()[..])); cfg.define("SIZEOF_SIZE_T", Some(&(width / 8).to_string()[..])); cfg.define("SIZEOF_LONG", Some(&(width / 8).to_string()[..])); cfg.flag("-fvisibility=hidden"); } cfg.compile("curl"); if windows { println!("cargo:rustc-link-lib=ws2_32"); println!("cargo:rustc-link-lib=crypt32"); } // Illumos/Solaris requires explicit linking with libnsl if target.contains("solaris") { println!("cargo:rustc-link-lib=nsl"); } if target.contains("-apple-") { println!("cargo:rustc-link-lib=framework=Security"); println!("cargo:rustc-link-lib=framework=CoreFoundation"); println!("cargo:rustc-link-lib=framework=SystemConfiguration"); } } #[cfg(not(target_env = "msvc"))] fn try_vcpkg() -> bool { false } #[cfg(target_env = "msvc")] fn try_vcpkg() -> bool { // the import library for the dll is called libcurl_imp let mut successful_probe_details = match vcpkg::Config::new() .lib_names("libcurl_imp", "libcurl") .emit_includes(true) .probe("curl") { Ok(details) => Some(details), Err(e) => { println!("first run of vcpkg did not find libcurl: {}", e); None } }; if successful_probe_details.is_none() { match vcpkg::Config::new() .lib_name("libcurl") .emit_includes(true) .probe("curl") { Ok(details) => successful_probe_details = Some(details), Err(e) => println!("second run of vcpkg did not find libcurl: {}", e), } } if successful_probe_details.is_some() { // Found libcurl which depends on openssl, libssh2 and zlib // in the a default vcpkg installation. Probe for them // but do not fail if they are not present as we may be working // with a customized vcpkg installation. vcpkg::Config::new() .lib_name("libeay32") .lib_name("ssleay32") .probe("openssl") .ok(); vcpkg::probe_package("libssh2").ok(); vcpkg::Config::new() .lib_names("zlib", "zlib1") .probe("zlib") .ok(); println!("cargo:rustc-link-lib=crypt32"); println!("cargo:rustc-link-lib=gdi32"); println!("cargo:rustc-link-lib=user32"); println!("cargo:rustc-link-lib=wldap32"); return true; } false } fn try_pkg_config(configname: &str, libname: &str) -> bool { let mut cfg = pkg_config::Config::new(); cfg.cargo_metadata(false); let lib = match cfg.probe(libname) { Ok(lib) => lib, Err(e) => { println!( "Couldn't find {libname} from pkgconfig ({:?}), \ compiling it from source...", e ); return false; } }; // Not all system builds of libcurl have http2 features enabled, so if we've // got a http2-requested build then we may fall back to a build from source. if cfg!(feature = "http2") && !curl_config_reports_http2(configname, libname) { return false; } // Re-find the library to print cargo's metadata, then print some extra // metadata as well. cfg.cargo_metadata(true).probe(libname).unwrap(); for path in lib.include_paths.iter() { println!("cargo:include={}", path.display()); } true } fn xcode_major_version() -> Option { let status = Command::new("xcode-select").arg("-p").status().ok()?; if status.success() { let output = Command::new("xcodebuild").arg("-version").output().ok()?; if output.status.success() { let stdout = String::from_utf8_lossy(&output.stdout); println!("xcode version: {}", stdout); let mut words = stdout.split_whitespace(); if words.next()? == "Xcode" { let version = words.next()?; return version[..version.find('.')?].parse().ok(); } } } println!("unable to determine Xcode version, assuming >= 9"); None } fn curl_config_reports_http2(configname: &str, libname: &str) -> bool { let output = Command::new(configname).arg("--features").output(); let output = match output { Ok(out) => out, Err(e) => { println!("failed to run {configname} ({}), building from source", e); return false; } }; if !output.status.success() { println!("{configname} failed: {}", output.status); return false; } let stdout = String::from_utf8_lossy(&output.stdout); if !stdout.contains("HTTP2") { println!( "failed to find http-2 feature enabled in pkg-config-found \ {libname}, building from source" ); return false; } true } fn macos_link_search_path() -> Option { let output = cc::Build::new() .get_compiler() .to_command() .arg("--print-search-dirs") .output() .ok()?; if !output.status.success() { println!( "failed to run 'clang --print-search-dirs', continuing without a link search path" ); return None; } let stdout = String::from_utf8_lossy(&output.stdout); for line in stdout.lines() { if line.contains("libraries: =") { let path = line.split('=').nth(1)?; if !path.is_empty() { return Some(format!("{}/lib/darwin", path)); } } } println!("failed to determine link search path, continuing without it"); None }