diff --git a/extra/lensfun/PKGBUILD b/extra/lensfun/PKGBUILD
index 304783d44..4f11487c7 100644
--- a/extra/lensfun/PKGBUILD
+++ b/extra/lensfun/PKGBUILD
@@ -6,17 +6,18 @@
 
 pkgname=lensfun
 pkgver=0.3.2
-pkgrel=3
+pkgrel=6
 pkgdesc="Database of photographic lenses and a library that allows advanced access to the database"
 arch=(i686 x86_64)
-url="http://lensfun.sourceforge.net"
+url="https://lensfun.sourceforge.net"
 license=('LGPL3')
-depends=('glibc' 'glib2')
+depends=('glib2')
 makedepends=('python' 'libpng' 'doxygen' 'cmake')
-source=("http://sourceforge.net/projects/lensfun/files/${pkgver}/${pkgname}-${pkgver}.tar.gz"
+optdepends=('python: for lensfun-update-data and lensfun-add-adapter')
+source=("https://sourceforge.net/projects/lensfun/files/${pkgver}/${pkgname}-${pkgver}.tar.gz"
         lensfun-fix-python-install-dir.patch)
-sha1sums=('1d978b15aa7304d66a4931fa37ca9f8f89396c16'
-          '7bf2b17d0fb85800857eaf990541ea9eccca2f77')
+sha256sums=('ae8bcad46614ca47f5bda65b00af4a257a9564a61725df9c74cb260da544d331'
+            '11e0f9ce2d5c5fef4373ce6adbb19dbcbcd8a10efa02447db9c92b03798d5654')
 
 prepare() {
     cd $pkgname-$pkgver
@@ -30,6 +31,7 @@ build() {
       -DCMAKE_INSTALL_PREFIX=/usr \
       -DCMAKE_BUILD_TYPE=Release \
       -DCMAKE_INSTALL_LIBDIR=lib \
+      -DCMAKE_CXX_FLAGS="${CXXFLAGS} -fno-delete-null-pointer-checks" \
       -DBUILD_FOR_SSE=off \
       -DBUILD_FOR_SSE2=off
     make all