Update glslang linker patch

glslang_linker_flags.patch

@@ -1,12 +1,33 @@
+From 98ea1a662ee172961feaa374fe8d26078838d250 Mon Sep 17 00:00:00 2001
+From: Philip Langdale <philipl@overt.org>
+Date: Mon, 17 Aug 2020 16:19:39 -0700
+Subject: [PATCH] configure: Add additional glslang libraries to make linking
+ work
+
+The latest builds of glslang introduce new libraries that need to be
+linked for all symbols to be fully resolved.
+
+This change will break building against older installations of glslang
+and it's very hard to tell them apart as the library change upstream
+was not accompanied by any version bump and no official release has
+been made with this change it - just lots of people packaging up git
+snapshots. So, apologies in advance.
+---
+ configure | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/configure b/configure
+index 9ff246b..f13d1a8 100755
 --- a/configure
 +++ b/configure
-@@ -6308,7 +6308,7 @@
+@@ -6308,7 +6308,7 @@ enabled fontconfig        && enable libfontconfig
  enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
  enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
  enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
 -enabled libglslang        && require_cpp libglslang glslang/SPIRV/GlslangToSpv.h "glslang::TIntermediate*" -lglslang -lOSDependent -lHLSL -lOGLCompiler -lSPVRemapper -lSPIRV -lSPIRV-Tools-opt -lSPIRV-Tools -lpthread -lstdc++
-+enabled libglslang        && require_cpp libglslang glslang/SPIRV/GlslangToSpv.h "glslang::TIntermediate*" -lglslang -lOSDependent -lHLSL -lOGLCompiler -lSPVRemapper -lSPIRV -lSPIRV-Tools-opt -lSPIRV-Tools -lMachineIndependent -lGenericCodeGen -lpthread -lstdc++
++enabled libglslang        && require_cpp libglslang glslang/SPIRV/GlslangToSpv.h "glslang::TIntermediate*" -lglslang -lMachineIndependent -lOSDependent -lHLSL -lOGLCompiler -lGenericCodeGen -lSPVRemapper -lSPIRV -lSPIRV-Tools-opt -lSPIRV-Tools -lpthread -lstdc++
  enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
                                 require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
  enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
-
+-- 
+2.7.4