From f78f28132d0d0ece7830afd503928d9effe5fdbe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20W=C3=A4ckerlin?= <marc@mrw.sh>
Date: Wed, 3 May 2017 08:31:46 +0000
Subject: [PATCH] fix build with download enabled

---
 configure.ac | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index e8148b9..2f1ff5d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -26,9 +26,12 @@ AC_ARG_ENABLE(pkcs11-download,
 
 if test "$download_pkcs11" != "no"; then
     AC_MSG_NOTICE([downloading pkcs11 library headers])
-    test -d usr/include || mkdir -p usr/include
-    cd usr/include
+    test -d ${prefix}/include || mkdir -p ${prefix}/include
+    cd ${prefix}/include
     for f in $(wget -qO- ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-11/v2-20/ 2>&1 | html2 | sed -n 's,.*/a/@href=\(.*\.h\)$,\1,gp'); do
+        if test -f "${f##*/}"; then
+          rm "${f##*/}"
+        fi
         wget --unlink $f
         if ! test -f "${f##*/}"; then
             AC_MSG_ERROR([download failed of pkcs11 header file: $f])