Support musl system library and LmdbJava Native 0.9.33-3 (#280)

bp-alex · bp-alex · commit 8eb95d05da41 · 2025-11-19T11:43:02.000+11:00
diff --git a/pom.xml b/pom.xml
@@ -38,7 +38,7 @@
     <jnr-ffi.version>2.2.18</jnr-ffi.version>
     <junit.version>5.14.1</junit.version>
     <license-maven-plugin.version>4.6</license-maven-plugin.version>
-    <lmdbjava-native.version>0.9.33-2</lmdbjava-native.version>
+    <lmdbjava-native.version>0.9.33-3</lmdbjava-native.version>
     <maven-clean-plugin.version>3.5.0</maven-clean-plugin.version>
     <maven-compiler-plugin.version>3.14.1</maven-compiler-plugin.version>
     <maven-dependency-plugin.version>3.9.0</maven-dependency-plugin.version>
diff --git a/src/main/java/org/lmdbjava/TargetName.java b/src/main/java/org/lmdbjava/TargetName.java
@@ -18,6 +18,10 @@
 import static java.lang.System.getProperty;
 import static java.util.Locale.ENGLISH;
 
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
 /**
  * Determines the name of the target LMDB native library.
  *
@@ -160,6 +164,19 @@ private static String resolveOs(final String os) {
   }
 
   private static String resolveToolchain(final String os) {
-    return check(os, "Mac OS") ? "none" : "gnu";
+    if (check(os, "Mac OS")) {
+      return "none";
+    }
+    return isMuslLibc() ? "musl" : "gnu";
+  }
+
+  private static boolean isMuslLibc() {
+    try {
+      return Files.lines(Paths.get("/proc/self/maps"))
+          .filter(line -> line.contains("libc"))
+          .anyMatch(line -> line.contains("musl"));
+    } catch (final IOException e) {
+      return false;
+    }
   }
 }
diff --git a/src/test/java/org/lmdbjava/TargetNameTest.java b/src/test/java/org/lmdbjava/TargetNameTest.java
@@ -41,9 +41,13 @@ void customEmbedded() {
 
   @Test
   void embeddedNameResolution() {
-    embed("aarch64-linux-gnu.so", "aarch64", "Linux");
+    // Note: Linux resolution now detects musl vs glibc at runtime
+    // These tests verify the resolution logic but actual toolchain depends on system
+    final String linuxToolchain = TargetName.resolveFilename(NONE, NONE, "x86_64", "Linux")
+        .contains("-musl.") ? "musl" : "gnu";
+    embed("aarch64-linux-" + linuxToolchain + ".so", "aarch64", "Linux");
     embed("aarch64-macos-none.so", "aarch64", "Mac OS");
-    embed("x86_64-linux-gnu.so", "x86_64", "Linux");
+    embed("x86_64-linux-" + linuxToolchain + ".so", "x86_64", "Linux");
     embed("x86_64-macos-none.so", "x86_64", "Mac OS");
     embed("x86_64-windows-gnu.dll", "x86_64", "Windows");
   }
