diff --git a/shaderc/.signature b/shaderc/.signature
index f8e0aa89a..0d126005e 100644
--- a/shaderc/.signature
+++ b/shaderc/.signature
@@ -1,10 +1,12 @@
 untrusted comment: verify with /etc/ports/contrib.pub
-RWSagIOpLGJF3z1T9bLOok7yZ6isgKJrZ7kmIcLzMW8eals1I5qIJr8CE6rhbdolQPsJSscFjqjXTXqj+ViIZyml/vc1dJc3oAU=
-SHA256 (Pkgfile) = 2c6ab00455a37e458ff4aee4004f39c035120645fbb84bab0c15ff0efb461cee
+RWSagIOpLGJF38QSTUShLYu450xQjkaSGUtQ0hsfyc6Z1dJTwz0Iwp4cX2+UnwiPV3WdkPCat95DdNBOICMn1OIsRjnNkEtaVAc=
+SHA256 (Pkgfile) = a717585cfe7ccca9e57dd1bbfefddc5a8dd62f09a06ecd65ca34f0fa8cf00212
 SHA256 (.footprint) = a55f4db9a8f36310df010a88256abef6d13753f525ff212c4e7dcb390e6c1e66
-SHA256 (shaderc-v2019.0.tar.gz) = 1018cd02be52295272fdbffa056ee24b881be277c83d039ad554d91230f4e11b
+SHA256 (shaderc-34c412f21f945f4ef6ed4453f8b5dc4bb9d739e4.tar.gz) = d0b9c52c545a07b94fa6dc5caaa6bba3df7e9edd73cb3ea9ab3519fbb267e7ca
 SHA256 (glslc.1) = 74007de30e2a7654e399d8c67c03d817eb847112e5d95e407d81754334d333c6
 SHA256 (spvc.1) = a2f1c0158a73556080f2c7a8ae9027aa6c054da88ee3a5bb588bb9514021012d
 SHA256 (glslc-asciidoc.patch) = 685d97223af4fcd169921ee5f9b2c49a2df3d84b7bf7df7dd1f6def4361321a6
 SHA256 (spvc-asciidoc.patch) = fd0c682186be4231fab5c83bf7625678f3b7905c980e3f7c9ae6cd5e212f9563
 SHA256 (fix-glslang-link-order.patch) = 986a972d8b8fbfa750e92b750673108c4ae77af47acdc4dbb684358e2600a4ea
+SHA256 (0001-Drop-third-party-code-in-CMakeLists.txt.patch) = 0ca9f01b8665d90cc2dc4a7eca23d58e2b4d41a46ed7735f205e2680a5e7d55c
+SHA256 (shaderc-2019.0-fix-build-against-new-glslang.patch) = 7c7fe10c4e88e70a299b014cd52f2106cb07a6760feb5e12119cc576f022052e
diff --git a/shaderc/0001-Drop-third-party-code-in-CMakeLists.txt.patch b/shaderc/0001-Drop-third-party-code-in-CMakeLists.txt.patch
new file mode 100644
index 000000000..32ea680ab
--- /dev/null
+++ b/shaderc/0001-Drop-third-party-code-in-CMakeLists.txt.patch
@@ -0,0 +1,24 @@
+diff -up shaderc-34c412f21f945f4ef6ed4453f8b5dc4bb9d739e4/CMakeLists.txt.unbundle shaderc-34c412f21f945f4ef6ed4453f8b5dc4bb9d739e4/CMakeLists.txt
+--- shaderc-34c412f21f945f4ef6ed4453f8b5dc4bb9d739e4/CMakeLists.txt.unbundle	2019-06-10 00:30:41.954316517 +0200
++++ shaderc-34c412f21f945f4ef6ed4453f8b5dc4bb9d739e4/CMakeLists.txt	2019-06-10 01:10:11.672758769 +0200
+@@ -70,7 +70,6 @@ endif(MSVC)
+ 
+ # Configure subdirectories.
+ # We depend on these for later projects, so they should come first.
+-add_subdirectory(third_party)
+ 
+ if(SHADERC_ENABLE_SPVC)
+ add_subdirectory(libshaderc_spvc)
+@@ -81,12 +80,6 @@ add_subdirectory(libshaderc)
+ add_subdirectory(glslc)
+ add_subdirectory(examples)
+ 
+-add_custom_target(build-version
+-  ${PYTHON_EXECUTABLE}
+-  ${CMAKE_CURRENT_SOURCE_DIR}/utils/update_build_version.py
+-  ${shaderc_SOURCE_DIR} ${spirv-tools_SOURCE_DIR} ${glslang_SOURCE_DIR}
+-  COMMENT "Update build-version.inc in the Shaderc build directory (if necessary).")
+-
+ function(define_pkg_config_file NAME LIBS)
+   add_custom_target(${NAME}-pkg-config ALL
+     COMMAND ${CMAKE_COMMAND}
diff --git a/shaderc/Pkgfile b/shaderc/Pkgfile
index c407cbfcc..783e1296c 100644
--- a/shaderc/Pkgfile
+++ b/shaderc/Pkgfile
@@ -6,18 +6,26 @@
 
 name=shaderc
 version=2019.0
-release=2
-source=(https://github.com/google/$name/archive/v$version/$name-v$version.tar.gz
+commit=34c412f21f945f4ef6ed4453f8b5dc4bb9d739e4
+release=3
+source=(
+	https://github.com/KhronosGroup/shaderc/archive/$commit.tar.gz#/$name-$commit.tar.gz
+	#https://github.com/google/$name/archive/v$version/$name-v$version.tar.gz
 	glslc.1 spvc.1 glslc-asciidoc.patch spvc-asciidoc.patch
-	fix-glslang-link-order.patch)
+	fix-glslang-link-order.patch
+	0001-Drop-third-party-code-in-CMakeLists.txt.patch
+	shaderc-2019.0-fix-build-against-new-glslang.patch)
 
 build() {
-	cd $name-$version
+	cd $name-$commit
+	#cd $name-$version
 
 	patch -d glslc -p0 -i $SRC/glslc-asciidoc.patch
 	patch -d spvc -p0 -i $SRC/spvc-asciidoc.patch
 
 	patch -p1 -i $SRC/fix-glslang-link-order.patch
+	patch -p1 -i $SRC/0001-Drop-third-party-code-in-CMakeLists.txt.patch
+	patch -p1 -i $SRC/shaderc-2019.0-fix-build-against-new-glslang.patch
 
 	# de-vendor libs and disable git versioning
 	sed '/examples/d;/third_party/d' -i CMakeLists.txt
diff --git a/shaderc/shaderc-2019.0-fix-build-against-new-glslang.patch b/shaderc/shaderc-2019.0-fix-build-against-new-glslang.patch
new file mode 100644
index 000000000..807540cf6
--- /dev/null
+++ b/shaderc/shaderc-2019.0-fix-build-against-new-glslang.patch
@@ -0,0 +1,54 @@
+diff --git a/libshaderc/src/shaderc.cc b/libshaderc/src/shaderc.cc
+index 3c3c3de..b5fc6cb 100644
+--- a/libshaderc/src/shaderc.cc
++++ b/libshaderc/src/shaderc.cc
+@@ -20,7 +20,7 @@
+ #include <sstream>
+ #include <vector>
+ 
+-#include "SPIRV/spirv.hpp"
++#include "glslang/SPIRV/spirv.hpp"
+ 
+ #include "libshaderc_util/compiler.h"
+ #include "libshaderc_util/counting_includer.h"
+diff --git a/libshaderc_util/src/compiler.cc b/libshaderc_util/src/compiler.cc
+index ef7867f..acc172b 100644
+--- a/libshaderc_util/src/compiler.cc
++++ b/libshaderc_util/src/compiler.cc
+@@ -26,7 +26,7 @@
+ #include "libshaderc_util/string_piece.h"
+ #include "libshaderc_util/version_profile.h"
+ 
+-#include "SPIRV/GlslangToSpv.h"
++#include "glslang/SPIRV/GlslangToSpv.h"
+ 
+ namespace {
+ using shaderc_util::string_piece;
+@@ -291,17 +291,12 @@ std::tuple<bool, std::vector<uint32_t>, size_t> Compiler::Compile(
+       bases[static_cast<int>(UniformKind::StorageBuffer)]);
+   shader.setShiftUavBinding(
+       bases[static_cast<int>(UniformKind::UnorderedAccessView)]);
+-  shader.setHlslIoMapping(hlsl_iomap_);
+   shader.setResourceSetBinding(
+       hlsl_explicit_bindings_[static_cast<int>(used_shader_stage)]);
+   shader.setEnvClient(target_client_info.client,
+                       target_client_info.client_version);
+   shader.setEnvTarget(target_client_info.target_language,
+                       target_client_info.target_language_version);
+-  if (hlsl_functionality1_enabled_) {
+-    shader.setEnvTargetHlslFunctionality1();
+-  }
+-
+   const EShMessages rules = GetMessageRules(target_env_, source_language_,
+                                             hlsl_offsets_,
+                                             generate_debug_info_);
+@@ -478,9 +473,6 @@ std::tuple<bool, std::string, std::string> Compiler::PreprocessShader(
+   }
+   shader.setEnvClient(target_client_info.client,
+                       target_client_info.client_version);
+-  if (hlsl_functionality1_enabled_) {
+-    shader.setEnvTargetHlslFunctionality1();
+-  }
+ 
+   // The preprocessor might be sensitive to the target environment.
+   // So combine the existing rules with the just-give-me-preprocessor-output