include by relative path, so root doesn't need to be in the search path

OGLCompilersDLL/InitializeDll.cpp

@@ -37,9 +37,9 @@
 #include <assert.h>
 
 #include "InitializeDll.h"
-#include "Include/InitializeGlobals.h"
+#include "../glslang/Include/InitializeGlobals.h"
 
-#include "Public/ShaderLang.h"
+#include "../glslang/Public/ShaderLang.h"
 
 namespace glslang {
 

SPIRV/GlslangToSpv.cpp

@@ -45,8 +45,8 @@
 #include "GLSL450Lib.h"
 
 // Glslang includes
-#include "glslang/MachineIndependent/localintermediate.h"
-#include "glslang/MachineIndependent/SymbolTable.h"
+#include "../glslang/MachineIndependent/localintermediate.h"
+#include "../glslang/MachineIndependent/SymbolTable.h"
 
 #include <string>
 #include <map>

glslang/MachineIndependent/ShaderLang.cpp

@@ -49,7 +49,7 @@
 #include "ScanContext.h"
 
 #include "../Include/ShHandle.h"
-#include "InitializeDll.h"
+#include "../../OGLCompilersDLL/InitializeDll.h"
 
 #include "preprocessor/PpContext.h"
 

glslang/MachineIndependent/preprocessor/PpScanner.cpp

@@ -88,7 +88,7 @@ NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "PpContext.h"
 #include "PpTokens.h"
-#include "Scan.h"
+#include "../Scan.h"
 
 namespace glslang {
 

glslang/OSDependent/Linux/ossource.cpp

@@ -36,7 +36,7 @@
 // This file contains the Linux-specific functions
 //
 #include "osinclude.h"
-#include "InitializeDll.h"
+#include "../../../OGLCompilersDLL/InitializeDll.h"
 
 namespace glslang {