diff --git a/Configure.pl b/Configure.pl
index 2064ac8..73e2d27 100755
--- a/Configure.pl
+++ b/Configure.pl
@@ -34,6 +34,7 @@ MAIN: {
                'no-clean',
                'with-parrot=s', 'gen-parrot:s', 'parrot-config=s', 'parrot-option=s@',
                'with-moar=s', 'gen-moar:s', 'moar-option=s@',
+               'with-asm=s', 'with-asm-tree=s', 'with-jline=s', 'with-jna=s',
                'make-install!', 'makefile-timing!',
                'git-protocol=s',
                'git-depth=s', 'git-reference=s',);
@@ -50,6 +51,53 @@ MAIN: {
               "Use --prefix to specify a directory in which parrot is installed.";
     }
 
+    if ($options{'with-asm'}) {
+        if ($options{'with-asm'} ne '-') {
+            $config{'asm'} = $options{'with-asm'};
+        }
+    } else {
+        $config{'asm'} = "3rdparty/asm/asm-4.1.jar";
+    }
+    if ($options{'with-asm-tree'}) {
+        if ($options{'with-asm-tree'} ne '-') {
+            $config{'asmtree'} = $options{'with-asm-tree'};
+        }
+    } else {
+        $config{'asmtree'} = "3rdparty/asm/asm-tree-4.1.jar";
+    }
+    if ($options{'with-jline'}) {
+        if ($options{'with-jline'} ne '-') {
+            $config{'jline'} = $options{'with-jline'};
+        }
+    } else {
+        $config{'jline'} = "3rdparty/jline/jline-1.0.jar";
+    }
+    if ($options{'with-jna'}) {
+        if ($options{'with-jna'} ne '-') {
+            $config{'jna'} = $options{'with-jna'};
+        }
+    } else {
+        $config{'jna'} = "3rdparty/jna/jna.jar";
+    }
+
+    if ($^O eq 'MSWin32') {
+        $config{'asmfile'} = $config{'asm'};
+        $config{'asmfile'} =~ s/.*\\//;
+        $config{'jlinefile'} = $config{'jline'};
+        $config{'jlinefile'} =~ s/.*\\//;
+    } else {
+        $config{'asmfile'} = $config{'asm'};
+        $config{'asmfile'} =~ s/.*\///;
+        $config{'jlinefile'} = $config{'jline'};
+        $config{'jlinefile'} =~ s/.*\///;
+    }
+
+    fill_template_file(
+        'tools/build/install-jvm-runner.pl.in',
+        'tools/build/install-jvm-runner.pl',
+        %config,
+    );
+
     my $default_backend;
     my @backends;
     my %backends;
@@ -357,6 +405,11 @@ General Options:
     --gen-moar         Download and build a copy of MoarVM to use
     --moar-option='--option=value'
                        Options to pass to MoarVM configuration for --gen-moar
+    --with-asm='/path/to/jar'
+    --with-asm-tree='/path/to/jar'
+    --with-jline='/path/to/jar'
+    --with-jna='/path/to/jar'
+                       Provide paths to already installed jars
     --git-protocol={ssh,https,git}
                        Protocol to use for git clone. Default: https
     --make-install     Immediately run `MAKE install` after configuring
diff --git a/tools/build/Makefile-JVM.in b/tools/build/Makefile-JVM.in
index 27959ad..c19965a 100644
--- a/tools/build/Makefile-JVM.in
+++ b/tools/build/Makefile-JVM.in
@@ -2,7 +2,6 @@ BAT    = @bat@
 JAVA   = java
 JAVAC  = javac
 JAR    = jar
-ASM    = 3rdparty/asm/
 J_RUNNER = nqp-j$(BAT)
 
 NQP_JAR_DIR = $(NQP_LANG_DIR)/runtime
@@ -18,7 +17,11 @@ RUNTIME_JAVAS = \
 
 RUNTIME_JAR = nqp-runtime.jar
 
-THIRDPARTY_JARS = $(ASM)asm-4.1.jar@cpsep@$(ASM)asm-tree-4.1.jar@cpsep@3rdparty/jline/jline-1.0.jar@cpsep@3rdparty/jna/jna.jar
+ASM = @asm@
+ASMTREE = @asmtree@
+JLINE = @jline@
+JNA = @jna@
+THIRDPARTY_JARS = $(ASM)@cpsep@$(ASMTREE)@cpsep@$(JLINE)@cpsep@$(JNA)
 J_STAGE0 = src/vm/jvm/stage0
 J_STAGE1 = $(JVM_BUILD_DIR)/stage1
 J_STAGE2 = $(JVM_BUILD_DIR)/stage2
@@ -80,8 +83,8 @@ j-install: j-all
 	$(MKPATH) $(DESTDIR)$(BIN_DIR)
 	$(MKPATH) $(DESTDIR)$(NQP_JAR_DIR)
 	$(MKPATH) $(DESTDIR)$(NQP_LIB_DIR)
-	$(CP) 3rdparty/asm/asm-4.1.jar 3rdparty/asm/asm-tree-4.1.jar  $(DESTDIR)$(NQP_JAR_DIR)
-	$(CP) 3rdparty/jline/jline-1.0.jar 3rdparty/jna/jna.jar $(DESTDIR)$(NQP_JAR_DIR)
+	$(CP) $(ASM) $(ASMTREE) $(DESTDIR)$(NQP_JAR_DIR)
+	$(CP) $(JLINE) $(JNA) $(DESTDIR)$(NQP_JAR_DIR)
 	$(CP) $(RUNTIME_JAR) $(DESTDIR)$(NQP_JAR_DIR)
 	$(CP) $(NQP_MO_JAR) $(MODULE_LOADER_JAR) $(DESTDIR)$(NQP_LIB_DIR)
 	$(CP) $(CORE_SETTING_JAR) $(QASTNODE_JAR) $(QREGEX_JAR) $(DESTDIR)$(NQP_LIB_DIR)
diff --git a/tools/build/install-jvm-runner.pl b/tools/build/install-jvm-runner.pl
deleted file mode 100644
index 14541d6..0000000
--- a/tools/build/install-jvm-runner.pl
+++ /dev/null
@@ -1,44 +0,0 @@
-#!/usr/bin/perl
-# Copyright (C) 2013, The Perl Foundation.
-
-use strict;
-use warnings;
-use 5.008;
-use File::Spec;
-
-my ($destdir, $prefix) = @ARGV;
-my $realpath = $destdir.$prefix;
-
-unless (File::Spec->file_name_is_absolute($prefix)) {
-    $prefix = File::Spec->rel2abs($prefix);
-}
-
-if ($^O eq 'MSWin32') {
-    my $jar_dir = File::Spec->catfile($prefix, 'share', 'nqp', 'runtime');
-    my $lib_dir = File::Spec->catfile($prefix, 'share', 'nqp', 'lib');
-    my $install_to = File::Spec->catfile($realpath, 'bin', 'nqp-j.bat');
-
-    open my $fh, ">", $install_to
-        or die "Could not open $install_to: $!";
-    print $fh '@java -Xss1m -Xmx512m -Xbootclasspath/a:' . $jar_dir . '\\nqp-runtime.jar;' .
-              "$jar_dir\\asm-4.1.jar;$jar_dir\\jline-1.0.jar;$lib_dir\\nqp.jar -cp $lib_dir nqp %*\n";
-    close $fh
-        or die "Could not close $install_to: $!";
-}
-else {
-    my $nqp_dir = File::Spec->catfile($prefix, qw/share nqp/);
-    my $jar_dir = File::Spec->catfile('${NQP_DIR}', 'runtime');
-    my $lib_dir = File::Spec->catfile('${NQP_DIR}', 'lib');
-    my $jars = "$jar_dir/nqp-runtime.jar:$jar_dir/asm-4.1.jar:$jar_dir/jline-1.0.jar:$lib_dir/nqp.jar";
-    my $install_to = File::Spec->catfile($realpath, 'bin', 'nqp-j');
-
-    open my $fh, ">", $install_to
-        or die "Could not open $install_to: $!";
-    print $fh "#!/bin/sh\n";
-    print $fh ": \${NQP_DIR:=\"$nqp_dir\"}\n";
-    print $fh ": \${NQP_JARS:=\"$jars\"}\n";
-    print $fh "exec java -Xss1m -Xmx512m -Xbootclasspath/a:\${NQP_JARS} -cp $lib_dir nqp \"\$\@\"\n";
-    close $fh
-        or die "Could not close $install_to: $!";
-    chmod 0755, $install_to;
-}
diff --git a/tools/build/install-jvm-runner.pl.in b/tools/build/install-jvm-runner.pl.in
new file mode 100644
index 0000000..92a1109
--- /dev/null
+++ b/tools/build/install-jvm-runner.pl.in
@@ -0,0 +1,44 @@
+#!/usr/bin/perl
+# Copyright (C) 2013, The Perl Foundation.
+
+use strict;
+use warnings;
+use 5.008;
+use File::Spec;
+
+my ($destdir, $prefix) = @ARGV;
+my $realpath = $destdir.$prefix;
+
+unless (File::Spec->file_name_is_absolute($prefix)) {
+    $prefix = File::Spec->rel2abs($prefix);
+}
+
+if ($^O eq 'MSWin32') {
+    my $jar_dir = File::Spec->catfile($prefix, 'share', 'nqp', 'runtime');
+    my $lib_dir = File::Spec->catfile($prefix, 'share', 'nqp', 'lib');
+    my $install_to = File::Spec->catfile($realpath, 'bin', 'nqp-j.bat');
+
+    open my $fh, ">", $install_to
+        or die "Could not open $install_to: $!";
+    print $fh '@java -Xss1m -Xmx512m -Xbootclasspath/a:' . $jar_dir . '\\nqp-runtime.jar;' .
+              "$jar_dir\\@asmfile@;$jar_dir\\@jlinefile@;$lib_dir\\nqp.jar -cp $lib_dir nqp %*\n";
+    close $fh
+        or die "Could not close $install_to: $!";
+}
+else {
+    my $nqp_dir = File::Spec->catfile($prefix, qw/share nqp/);
+    my $jar_dir = File::Spec->catfile('${NQP_DIR}', 'runtime');
+    my $lib_dir = File::Spec->catfile('${NQP_DIR}', 'lib');
+    my $jars = "$jar_dir/nqp-runtime.jar:$jar_dir/@asmfile@:$jar_dir/@jlinefile@:$lib_dir/nqp.jar";
+    my $install_to = File::Spec->catfile($realpath, 'bin', 'nqp-j');
+
+    open my $fh, ">", $install_to
+        or die "Could not open $install_to: $!";
+    print $fh "#!/bin/sh\n";
+    print $fh ": \${NQP_DIR:=\"$nqp_dir\"}\n";
+    print $fh ": \${NQP_JARS:=\"$jars\"}\n";
+    print $fh "exec java -Xss1m -Xmx512m -Xbootclasspath/a:\${NQP_JARS} -cp $lib_dir nqp \"\$\@\"\n";
+    close $fh
+        or die "Could not close $install_to: $!";
+    chmod 0755, $install_to;
+}