diff --git a/extra/plzip/build b/extra/plzip/build
index ff37a3fe..30f8ed64 100755
--- a/extra/plzip/build
+++ b/extra/plzip/build
@@ -5,6 +5,11 @@
 # compile plzip.
 (cd lzlib; ./configure; make)
 
+# Fix build in libc++ environment.
+case $("${CC:-cc}" -print-file-name=libc++.a) in */*)
+    CXXFLAGS="$CXXFLAGS -lunwind -lc++abi"
+esac
+
 ./configure \
     --prefix=/usr \
     CXXFLAGS="$CXXFLAGS -static -L$PWD/lzlib -I$PWD/lzlib"