- Compile 64 and 32 bit variants on Linux.

- Give each variant of the native library a unique name.

build.gradle

@@ -1,6 +1,6 @@
 apply plugin: 'java'
 apply plugin: 'groovy'
-apply plugin: 'cpp-lib'
+apply plugin: 'cpp'
 apply plugin: 'idea'
 apply plugin: 'application'
 
@@ -20,27 +20,55 @@ targetCompatibility = 1.5
 
 configurations.compile.extendsFrom = []
 
+cpp {
+    sourceSets {
+        main
+    }
+}
+
 libraries {
-    main {
+    if (org.gradle.internal.os.OperatingSystem.current().macOsX) {
-        spec {
+        universal.spec {
-            includes([nativeHeadersDir])
+            baseName = 'native-osx-universal'
-            if (org.gradle.internal.os.OperatingSystem.current().macOsX) {
+            includes(['/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/'])
-                includes(['/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/'])
+            args("-lcurses", "-arch", "x86_64", "-arch", "i386", "-o", outputFile)
-                args("-lcurses", "-arch", "x86_64", "-arch", "i386", "-o", outputFile)
+        }
-            } else if (org.gradle.internal.os.OperatingSystem.current().windows) {
+    } else if (org.gradle.internal.os.OperatingSystem.current().windows) {
-                includes(["${org.gradle.internal.jvm.Jvm.current().javaHome}/include"])
+        main.spec {
-                includes(["${org.gradle.internal.jvm.Jvm.current().javaHome}/include/win32"])
+            baseName = 'native-win32'
-                args("/DWIN32")
+            includes(["${org.gradle.internal.jvm.Jvm.current().javaHome}/include"])
-            } else if (org.gradle.internal.os.OperatingSystem.current().linux) {
+            includes(["${org.gradle.internal.jvm.Jvm.current().javaHome}/include/win32"])
+            args("/DWIN32")
+        }
+    } else if (org.gradle.internal.os.OperatingSystem.current().linux) {
+        all {
+            spec {
                 includes(["${org.gradle.internal.jvm.Jvm.current().javaHome}/include"])
                 includes(["${org.gradle.internal.jvm.Jvm.current().javaHome}/include/linux"])
                 args("-lcurses")
-            } else {
-                includes(["${org.gradle.internal.jvm.Jvm.current().javaHome}/include"])
-                includes(["${org.gradle.internal.jvm.Jvm.current().javaHome}/include/solaris"])
-                args("-DSOLARIS", "-lcurses")
             }
         }
+        i386.spec {
+            baseName = 'native-linux-i386'
+            args("-m32")
+        }
+        amd64.spec {
+            baseName = 'native-linux-amd64'
+            args("-m64")
+        }
+    } else {
+        baseName = "native-solaris"
+        main.spec {
+            includes(["${org.gradle.internal.jvm.Jvm.current().javaHome}/include"])
+            includes(["${org.gradle.internal.jvm.Jvm.current().javaHome}/include/solaris"])
+            args("-DSOLARIS", "-lcurses")
+        }
+    }
+    all {
+        spec {
+            includes([nativeHeadersDir])
+        }
+        sourceSets << cpp.sourceSets.main
     }
 }
 
@@ -66,7 +94,7 @@ task nativeHeaders {
 }
 
 task nativeJar(type: Jar) {
-    from compileMain
+    from libraries.collect { it.spec.task }
     archiveName = 'native-platform-jni.jar'
 }
 
@@ -75,6 +103,7 @@ applicationDistribution.from(nativeJar) {
     into 'lib'
 }
 
-compileMain.dependsOn nativeHeaders
+libraries.all {
-test.dependsOn compileMain
+    it.spec.task.dependsOn nativeHeaders
-
+}
+test.dependsOn libraries.collect { it.spec.task }

readme.md

@@ -68,7 +68,9 @@ You will need a very recent snapshot of [Gradle](http://www.gradle.org/).
 
 The g++ compiler is required to build the native library. You will need to `g++` package for this. Generally this is already installed.
 
-You need to install the `libncurses5-dev` package to pick up the ncurses header files. Also worth installing the `ncurses-doc` package too.
+You need to install the `gcc-multilib` and `g++-multilib` packages to pick up i386 support.
+
+You need to install the `libncurses5-dev` and `lib32ncurses5-dev` package to pick up the ncurses header files and i386 version. Also worth installing the `ncurses-doc` package too.
 
 ### Windows
 
@@ -116,5 +118,7 @@ You can run `$INSTALL_DIR/bin/native-platform` to run the test application.
 * Use fully decomposed form for unicode file names on hfs+ filesystems.
 * Handle string encoding for file system details
 * Handle string encoding for system info
-* Expose platform-specific HTTP proxy configuration. Query registry on windows to determine IE settings.
 
+### Ideas
+
+* Expose platform-specific HTTP proxy configuration. Query registry on windows to determine IE settings.

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

@@ -50,7 +50,7 @@ public abstract class Platform {
 
         @Override
         public String getLibraryName() {
-            return "native-platform.dll";
+            return "native-win32.dll";
         }
 
         @Override
@@ -91,11 +91,7 @@ public abstract class Platform {
         }
     }
 
-    private static class Unix extends Posix {
+    private abstract static class Unix extends Posix {
-        @Override
-        public String getLibraryName() {
-            return "libnative-platform.so";
-        }
     }
 
     private static class Linux extends Unix {
@@ -106,9 +102,21 @@ public abstract class Platform {
             }
             return super.get(type);
         }
+
+        @Override
+        public String getLibraryName() {
+            if (System.getProperty("os.arch").equals("amd64")) {
+                return "libnative-linux-amd64.so";
+            }
+            return "libnative-linux-i386.so";
+        }
     }
 
     private static class Solaris extends Unix {
+        @Override
+        public String getLibraryName() {
+            return "libnative-solaris.so";
+        }
     }
 
     private static class OsX extends Posix {
@@ -122,7 +130,7 @@ public abstract class Platform {
 
         @Override
         public String getLibraryName() {
-            return "libnative-platform.dylib";
+            return "libnative-osx-universal.dylib";
         }
     }