1 files changed, 2 insertions, 1 deletions
diff --git a/configure b/configure
index 2b58efe5..abb5ffef 100755
--- a/configure
+++ b/configure
@@ -524,7 +524,7 @@ fi
 if [ "$IDN_LIBRARY" = "icu" ]
 then
    IDNA_LIBS="$ICU_FLAGS"
-   CFLAGS="$CFLAGS -DUSE_STRINGPREP_ICU"
+   IDNA_FLAGS="-DUSE_STRINGPREP_ICU"
 fi
 if [ "$IDN_LIBRARY" = "idn" ]
 then
@@ -569,6 +569,7 @@ LUA_INCDIR=$LUA_INCDIR
 LUA_LIBDIR=$LUA_LIBDIR
 LUA_BINDIR=$LUA_BINDIR
 IDN_LIB=$IDN_LIB
+IDNA_FLAGS=$IDNA_FLAGS
 IDNA_LIBS=$IDNA_LIBS
 OPENSSL_LIBS=$OPENSSL_LIBS
 CFLAGS=$CFLAGS