diff --git a/community/openshadinglanguage/PKGBUILD b/community/openshadinglanguage/PKGBUILD
index 7bc3d4450..057e8ac97 100644
--- a/community/openshadinglanguage/PKGBUILD
+++ b/community/openshadinglanguage/PKGBUILD
@@ -6,7 +6,7 @@
 #  - set -DUSE_LLVM_BITCODE=OFF for v5 and v6
 
 pkgname=openshadinglanguage
-pkgver=1.7.5
+pkgver=1.7.6
 pkgrel=2
 pkgdesc="Advanced shading language for production GI renderers"
 arch=(i686 x86_64)
@@ -17,8 +17,8 @@ depends=('boost-libs' 'openimageio' 'openexr' 'freetype2' 'libpng'
 makedepends=('boost' 'cmake' 'llvm35' 'clang35')
 source=(https://github.com/imageworks/OpenShadingLanguage/archive/Release-${pkgver}.tar.gz
         llvm-static-system-libs.patch)
-md5sums=('8b15d13c3fa510b421834d32338304c8'
-         'b7c212b2549981ced03c091375f48122')
+sha512sums=('c0f0f1aece6be0aca9751dd53063b2f3f14482d21304e0606c21f786d00adfb92025ca10c928bbc9b591a862aada0393efd62b4e27e39669e013264a2cb5c1ef'
+            '50f1e9a3e88b0b4e328778d4d8eb30989e1dfed0abe1bb84681dc8d368f343f3052dd975d7d500113d39f34bb8b59415c7a4e6dd841bc8d44de250a3b7f6aeec')
 
 prepare() {
   cd OpenShadingLanguage-Release-$pkgver
@@ -38,6 +38,7 @@ build() {
 
   cmake ../.. \
     -DCMAKE_INSTALL_PREFIX=/usr \
+    -DENABLERTTI=ON \
     -DLLVM_STATIC=1 \
     -DOSL_BUILD_CPP11=1 \
     -DSTOP_ON_WARNING=OFF \