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Description: Fix build on Debian
Upstream code relies on building a static library from vendored source.
For Debian we want to avoid this and would rather use the pre-built,
packaged version of `liblmdb`. Using pkg-config is a simple way to ensure
the needed linker flags (especially `-llmdb`) are used and the build can
therefore succeed.
Author: Arnaud Ferraris <aferraris@debian.org>
Forwarded: not-needed
Last-Update: 2025-09-30
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -69,8 +69,8 @@
optional = true
default-features = false
-[build-dependencies.cc]
-version = "1.2.16"
+[build-dependencies.pkg-config]
+version = "0.3"
[build-dependencies.doxygen-rs]
version = "0.4.2"
--- a/build.rs
+++ b/build.rs
@@ -1,4 +1,4 @@
-extern crate cc;
+extern crate pkg_config;
#[cfg(feature = "bindgen")]
extern crate bindgen;
@@ -7,159 +7,11 @@
#[path = "bindgen.rs"]
mod generate;
-use std::env;
-use std::path::PathBuf;
-
-#[cfg(all(
- feature = "mdb_idl_logn_8",
- not(any(
- feature = "mdb_idl_logn_9",
- feature = "mdb_idl_logn_10",
- feature = "mdb_idl_logn_11",
- feature = "mdb_idl_logn_12",
- feature = "mdb_idl_logn_13",
- feature = "mdb_idl_logn_14",
- feature = "mdb_idl_logn_15",
- feature = "mdb_idl_logn_16"
- ))
-))]
-const MDB_IDL_LOGN: u8 = 8;
-#[cfg(all(
- feature = "mdb_idl_logn_9",
- not(any(
- feature = "mdb_idl_logn_10",
- feature = "mdb_idl_logn_11",
- feature = "mdb_idl_logn_12",
- feature = "mdb_idl_logn_13",
- feature = "mdb_idl_logn_14",
- feature = "mdb_idl_logn_15",
- feature = "mdb_idl_logn_16"
- ))
-))]
-const MDB_IDL_LOGN: u8 = 9;
-#[cfg(all(
- feature = "mdb_idl_logn_10",
- not(any(
- feature = "mdb_idl_logn_11",
- feature = "mdb_idl_logn_12",
- feature = "mdb_idl_logn_13",
- feature = "mdb_idl_logn_14",
- feature = "mdb_idl_logn_15",
- feature = "mdb_idl_logn_16"
- ))
-))]
-const MDB_IDL_LOGN: u8 = 10;
-#[cfg(all(
- feature = "mdb_idl_logn_11",
- not(any(
- feature = "mdb_idl_logn_12",
- feature = "mdb_idl_logn_13",
- feature = "mdb_idl_logn_14",
- feature = "mdb_idl_logn_15",
- feature = "mdb_idl_logn_16"
- ))
-))]
-const MDB_IDL_LOGN: u8 = 11;
-#[cfg(all(
- feature = "mdb_idl_logn_12",
- not(any(
- feature = "mdb_idl_logn_13",
- feature = "mdb_idl_logn_14",
- feature = "mdb_idl_logn_15",
- feature = "mdb_idl_logn_16"
- ))
-))]
-const MDB_IDL_LOGN: u8 = 12;
-#[cfg(all(
- feature = "mdb_idl_logn_13",
- not(any(
- feature = "mdb_idl_logn_14",
- feature = "mdb_idl_logn_15",
- feature = "mdb_idl_logn_16"
- ))
-))]
-const MDB_IDL_LOGN: u8 = 13;
-#[cfg(all(
- feature = "mdb_idl_logn_14",
- not(any(feature = "mdb_idl_logn_15", feature = "mdb_idl_logn_16"))
-))]
-const MDB_IDL_LOGN: u8 = 14;
-#[cfg(all(feature = "mdb_idl_logn_15", not(any(feature = "mdb_idl_logn_16"))))]
-const MDB_IDL_LOGN: u8 = 15;
-#[cfg(any(
- feature = "mdb_idl_logn_16",
- not(any(
- feature = "mdb_idl_logn_8",
- feature = "mdb_idl_logn_9",
- feature = "mdb_idl_logn_10",
- feature = "mdb_idl_logn_11",
- feature = "mdb_idl_logn_12",
- feature = "mdb_idl_logn_13",
- feature = "mdb_idl_logn_14",
- feature = "mdb_idl_logn_15",
- feature = "mdb_idl_logn_16",
- ))
-))]
-const MDB_IDL_LOGN: u8 = 16;
-
-macro_rules! warn {
- ($message:expr) => {
- println!("cargo:warning={}", $message);
- };
-}
-
fn main() {
#[cfg(feature = "bindgen")]
generate::generate();
println!("cargo::rerun-if-changed=lmdb");
- let mut lmdb = PathBuf::from(&env::var("CARGO_MANIFEST_DIR").unwrap());
- lmdb.push("lmdb");
- lmdb.push("libraries");
- lmdb.push("liblmdb");
-
- if cfg!(feature = "fuzzer") && cfg!(feature = "fuzzer-no-link") {
- warn!("Features `fuzzer` and `fuzzer-no-link` are mutually exclusive.");
- warn!("Building with `-fsanitize=fuzzer`.");
- }
-
- let mut builder = cc::Build::new();
-
- builder
- .define("MDB_IDL_LOGN", Some(MDB_IDL_LOGN.to_string().as_str()))
- .file(lmdb.join("mdb.c"))
- .file(lmdb.join("midl.c"))
- // https://github.com/mozilla/lmdb/blob/b7df2cac50fb41e8bd16aab4cc5fd167be9e032a/libraries/liblmdb/Makefile#L23
- .flag_if_supported("-Wno-unused-parameter")
- .flag_if_supported("-Wbad-function-cast")
- .flag_if_supported("-Wuninitialized");
-
- if cfg!(feature = "posix-sem") {
- builder.define("MDB_USE_POSIX_SEM", None);
- }
-
- if cfg!(feature = "use-valgrind") {
- builder.define("USE_VALGRIND", None);
- }
-
- if cfg!(feature = "asan") {
- builder.flag("-fsanitize=address");
- }
-
- if cfg!(feature = "fuzzer") {
- builder.flag("-fsanitize=fuzzer");
- } else if cfg!(feature = "fuzzer-no-link") {
- builder.flag("-fsanitize=fuzzer-no-link");
- }
-
- if cfg!(feature = "longer-keys") {
- builder.define("MDB_MAXKEYSIZE", "0");
- }
-
- if !cfg!(debug_assertions) {
- builder.define("NDEBUG", None);
- }
-
- builder.compile("liblmdb.a")
+ pkg_config::probe_library("lmdb").unwrap();
}
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