diff --git a/lazypkg.sh b/lazypkg.sh
index 78dd02d..b73068c 100755
--- a/lazypkg.sh
+++ b/lazypkg.sh
@@ -1,4 +1,7 @@
 #!/bin/dash
+export MAKEFLAGS="-j6"
+export CC=clang
+export CXX=clang++
 
 . ./build.sh
 dir=$(pwd)
@@ -47,7 +50,8 @@ echo $ext | tr ':' '\n' | while read e; do
     cd $srcdir
     mkdir -p $dir/out/$pkgname-\$e
     pkgdir=$dir/out/$pkgname-\$e
-    package_\$e
+
+    package_\$(echo \$e | tr '-' '_')
 
     mkdir -p $dir/out/$pkgname-\$e/lib/lazypkg
 
diff --git a/pkgs/libcxx/build.sh b/pkgs/libcxx/build.sh
new file mode 100644
index 0000000..122bbe4
--- /dev/null
+++ b/pkgs/libcxx/build.sh
@@ -0,0 +1,65 @@
+pkgver=11.0.0
+pkgname=libcxx
+bad=""
+ext="dev"
+
+fetch() {
+	curl -L "https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/llvm-project-11.0.0.tar.xz" -o $pkgname-$pkgver.tar.gz
+	tar -xf $pkgname-$pkgver.tar.gz
+	mv llvm-project-$pkgver $pkgname-$pkgver
+}
+
+build() {
+	cd $pkgname-$pkgver
+	mkdir -p build
+	cd build
+	cmake -G Ninja \
+		-DCMAKE_C_COMPILER=clang \
+		-DCMAKE_CXX_COMPILER=clang++ \
+		-DCMAKE_INSTALL_PREFIX=/ \
+		-DCMAKE_BUILD_TYPE=Release \
+		-DLLVM_ENABLE_LLD=ON \
+		-DLLVM_ENABLE_PROJECTS="libunwind;libcxx;libcxxabi" \
+		-DLLVM_TARGETS_TO_BUILD=X86 \
+		-DLIBCXX_ENABLE_FILESYSTEM=ON \
+		-DLIBCXX_USE_COMPILER_RT=ON \
+		-DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=ON \
+		-DLIBCXX_STATICALLY_LINK_ABI_IN_SHARED_LIBRARY=ON \
+		-DLIBCXX_STATICALLY_LINK_ABI_IN_STATIC_LIBRARY=ON \
+		-DLIBCXXABI_ENABLE_ASSERTIONS=ON \
+		-DLIBCXXABI_USE_COMPILER_RT=ON \
+		-DLIBCXXABI_USE_LLVM_UNWINDER=ON \
+		-DLIBCXXABI_ENABLE_STATIC_UNWINDER=ON \
+		-DLIBCXXABI_STATICALLY_LINK_UNWINDER_IN_SHARED_LIBRARY=YES \
+		-DLIBCXXABI_ENABLE_SHARED=ON \
+		-DLIBCXXABI_ENABLE_STATIC=ON \
+		-DLIBUNWIND_ENABLE_SHARED=ON \
+		-DLIBUNWIND_ENABLE_STATIC=ON \
+		-DLIBUNWIND_USE_COMPILER_RT=ON \
+		../llvm
+#		-DLIBCXX_HAS_MUSL_LIBC=ON \
+	samu cxx unwind
+}
+
+package() {
+	cd $pkgname-$pkgver
+	cd build
+	DESTDIR=$pkgdir samu install-cxx install-unwind
+	rm $pkgdir/lib/*.a
+	rm -r $pkgdir/include
+}
+
+package_dev() {
+	cd $pkgname-$pkgver
+	cd build
+	DESTDIR=$pkgdir samu install-cxx install-cxx-headers install-unwind
+	rm $pkgdir/lib/*.so.*
+	rm $pkgdir/lib/*.so
+}
+
+license() {
+	cd $pkgname-$pkgver
+	cat libcxx/LICENSE.TXT
+	cat libcxxabi/LICENSE.TXT
+	cat libunwind/LICENSE.TXT
+}
diff --git a/pkgs/netbsd-curses/build.sh b/pkgs/netbsd-curses/build.sh
index 0841c93..7a636e5 100644
--- a/pkgs/netbsd-curses/build.sh
+++ b/pkgs/netbsd-curses/build.sh
@@ -10,12 +10,12 @@ fetch() {
 
 build() {
 	cd $pkgname-$pkgver
-	make
+	ckati
 }
 
 package() {
 	cd $pkgname-$pkgver
-	make install DESTDIR=$pkgdir PREFIX=/
+	ckati install DESTDIR=$pkgdir PREFIX=/
 	rm -r $pkgdir/share
 	rm $pkgdir/lib/*.a
 	rm -r $pkgdir/include
@@ -24,7 +24,7 @@ package() {
 
 package_doc() {
 	cd $pkgname-$pkgver
-	make install DESTDIR=$pkgdir PREFIX=/
+	ckati install DESTDIR=$pkgdir PREFIX=/
 	rm -r $pkgdir/bin
 	rm -r $pkgdir/lib
 	rm -r $pkgdir/include
@@ -32,7 +32,7 @@ package_doc() {
 
 package_dev() {
 	cd $pkgname-$pkgver
-	make install DESTDIR=$pkgdir PREFIX=/
+	ckati install DESTDIR=$pkgdir PREFIX=/
 	rm $pkgdir/lib/*.so
 	rm -r $pkgdir/include
 	rm -r $pkgdir/share