- Tweaked build for linux.

- Tweaked how errno is sent back to Java land.

src/main/cpp/posixFunctions.c

@@ -7,8 +7,8 @@
 
 void markFailed(JNIEnv *env, jobject result) {
     jclass destClass = env->GetObjectClass(result);
-    jfieldID errnoField = env->GetFieldID(destClass, "errno", "I");
-    env->SetIntField(result, errnoField, errno);
+    jmethodID method = env->GetMethodID(destClass, "failed", "(I)V");
+    env->CallVoidMethod(result, method, errno);
 }
 
 JNIEXPORT void JNICALL

src/main/java/net/rubygrapefruit/platform/Platform.java

@@ -17,7 +17,11 @@ public class Platform {
             if (!loaded) {
                 System.setProperty("java.library.path", new File("build/binaries").getAbsolutePath());
                 try {
-                    System.load(new File("build/binaries/libnative-platform.dylib").getCanonicalPath());
+                    File libFile = new File("build/binaries/libnative-platform.dylib");
+                    if (!libFile.isFile()) {
+                        libFile = new File("build/binaries/libnative-platform.so");
+                    }
+                    System.load(libFile.getCanonicalPath());
                 } catch (IOException e) {
                     throw new RuntimeException(e);
                 }

src/main/java/net/rubygrapefruit/platform/internal/FunctionResult.java

@@ -3,6 +3,10 @@ package net.rubygrapefruit.platform.internal;
 public class FunctionResult {
     int errno;
 
+    void failed(int errno) {
+        this.errno = errno;
+    }
+
     public boolean isFailed() {
         return errno != 0;
     }