fix premake build for linux, thanks to @consultit

See also issue #1538

Extras/ConvexDecomposition/premake4.lua

@@ -3,6 +3,9 @@
 	kind "StaticLib"
 	
 	includedirs {".","../../src"}
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	files {
 		"**.cpp",
 		"**.h"

Extras/HACD/premake4.lua

@@ -3,6 +3,9 @@
 	kind "StaticLib"
 	
 	includedirs {"."}
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	files {
 		"**.cpp",
 		"**.h"

Extras/InverseDynamics/premake4.lua

@@ -6,6 +6,9 @@
 		"../../src"
 	}
 
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	files {
 		"*.cpp",
 		"*.hpp"

Extras/Serialize/BulletFileLoader/premake4.lua

@@ -2,6 +2,10 @@
 		
 	kind "StaticLib"
 	
+	if os.is("Linux") then
+	    buildoptions{"-fPIC"}
+	end
+	 
 	includedirs {
 		"../../../src"
 	}

Extras/Serialize/BulletWorldImporter/premake4.lua

@@ -6,7 +6,11 @@
 		"../BulletFileLoader",
 		"../../../src"
 	}
-	 
+
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
+    	 
 	files {
 		"**.cpp",
 		"**.h"

Extras/Serialize/BulletXmlWorldImporter/premake4.lua

@@ -1,7 +1,7 @@
 	project "BulletXmlWorldImporter"
 		
 	kind "StaticLib"
-	targetdir "../../lib"
+	--targetdir "../../lib"
 	includedirs {
 		"../BulletWorldImporter",
 		"../BulletFileLoader",
@@ -11,4 +11,4 @@
 	files {
 		"**.cpp",
 		"**.h"
-	}
+	}

Extras/VHACD/src/premake4.lua

@@ -1,6 +1,9 @@
 	project "vhacd"
 
 	kind "StaticLib"
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	includedirs {
 		"../inc","../public",
 	}

examples/ExampleBrowser/premake4.lua

@@ -3,7 +3,11 @@ project "App_BulletExampleBrowser"
         language "C++"
 
         kind "ConsoleApp"
-
+        
+        if os.is("Linux") then
+	        buildoptions{"-fPIC"}
+	    end
+        
         hasCL = findOpenCL("clew")
 
         if (hasCL) then
@@ -209,6 +213,10 @@ project "BulletExampleBrowserLib"
                 "../../src",
                 "../ThirdPartyLibs",
                 }
+                
+        if os.is("Linux") then
+            buildoptions{"-fPIC"}
+        end
 
 	if _OPTIONS["lua"] then
 		includedirs{"../ThirdPartyLibs/lua-5.2.3/src"}

examples/OpenGLWindow/premake4.lua

@@ -12,7 +12,11 @@
 		 	"../ThirdPartyLibs",
 		 	"../../src",
 		}
-		
+
+        if os.is("Linux") then
+            buildoptions{"-fPIC"}
+        end
+        		
 		--links {
 		--}
 		

examples/SharedMemory/premake4.lua

@@ -12,6 +12,9 @@ includedirs {".","../../src", "../ThirdPartyLibs"}
 links {
 	"BulletSoftBody", "Bullet3Common","BulletInverseDynamicsUtils", "BulletInverseDynamics",	"BulletDynamics","BulletCollision", "LinearMath", "BussIK"
 }
+if os.is("Linux") then
+    links{"dl"}
+end
 
 language "C++"
 

examples/SharedMemory/tcp/premake4.lua

@@ -73,6 +73,7 @@ links {
         end
         if os.is("Linux") then
                 defines {"_LINUX"}
+                links{"dl"}
         end
         if os.is("MacOSX") then
                 defines {"_DARWIN"}

examples/SharedMemory/udp/premake4.lua

@@ -14,6 +14,7 @@ project ("App_PhysicsServerSharedMemoryBridgeUDP")
 		links {"Ws2_32","Winmm"}
 	end
 	if os.is("Linux") then
+	    links{"dl"}
 	end
 	if os.is("MacOSX") then
 	end		
@@ -68,6 +69,9 @@ if os.is("Windows") then
 	defines { "WIN32" }
 	links {"Ws2_32","Winmm"}
 end
+	if os.is("Linux") then
+	    links{"dl"}
+	end
 
 language "C++"
 

examples/ThirdPartyLibs/BussIK/premake4.lua

@@ -5,6 +5,9 @@
 	includedirs {
 		"."
 	}
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	files {
 		"*.cpp",
 		"*.h",

examples/ThirdPartyLibs/Gwen/premake4.lua

@@ -11,6 +11,9 @@ end
 	
 	defines { "GWEN_COMPILE_STATIC"  }
 	 defines { "DONT_USE_GLUT"}	
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	includedirs {
 		".",".."
 	}

examples/ThirdPartyLibs/clsocket/premake4.lua

@@ -16,6 +16,9 @@
 	includedirs {
 		".","include","src"
 	}
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	files {
 		"src/SimpleSocket.cpp",
 		"src/ActiveSocket.cpp",

examples/ThirdPartyLibs/enet/premake4.lua

@@ -18,6 +18,9 @@
 	includedirs {
 		".","include"
 	}
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	files {
 		"callbacks.c",
 		"compress.c",

examples/ThirdPartyLibs/lua-5.2.3/premake4.lua

@@ -18,6 +18,9 @@
 	includedirs {
 		"src"
 	}
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	files {
 		"src/*.c",
 		"src/*.h"

examples/ThirdPartyLibs/serial/premake4.lua

@@ -4,6 +4,9 @@
 	
 	includedirs {"include"}
 	
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	if os.is("Windows") then 
 		files{
 			 "src/impl/win.cc",

src/Bullet3Collision/premake4.lua

@@ -6,6 +6,9 @@
 		
 	includedirs {".."}
 
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 
 	files {
 		"**.cpp",

src/Bullet3Common/premake4.lua

@@ -4,6 +4,10 @@
 				
 	kind "StaticLib"
 		
+	if os.is("Linux") then
+	    buildoptions{"-fPIC"}
+	end
+
 	includedirs {".."}
 
 	files {

src/Bullet3Dynamics/premake4.lua

@@ -8,6 +8,9 @@
 		".."
 	}		
 	
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 
 	files {
 		"**.cpp",

src/Bullet3Geometry/premake4.lua

@@ -6,6 +6,9 @@
 		
 	includedirs {".."}
 	
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 
 	files {
 		"**.cpp",

src/Bullet3OpenCL/premake4.lua

@@ -9,6 +9,9 @@ function createProject(vendor)
 			
 		kind "StaticLib"
 		
+        if os.is("Linux") then
+            buildoptions{"-fPIC"}
+        end
 		
 		includedirs {
 			".",".."

src/Bullet3Serialize/Bullet2FileLoader/premake4.lua

@@ -5,6 +5,10 @@
 	includedirs {
 		"../../../src"
 	}
+	
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	 
 	files {
 		"**.cpp",

src/BulletCollision/premake4.lua

@@ -1,6 +1,9 @@
 	project "BulletCollision"
 
 	kind "StaticLib"
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	includedirs {
 		"..",
 	}

src/BulletDynamics/premake4.lua

@@ -3,6 +3,9 @@
 	includedirs {
 		"..",
 	}
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	files {
 		"Dynamics/*.cpp",
                 "Dynamics/*.h",

src/BulletInverseDynamics/premake4.lua

@@ -1,6 +1,9 @@
 	project "BulletInverseDynamics"
 
 	kind "StaticLib"
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	includedirs {
 		"..",
 	}

src/BulletSoftBody/premake4.lua

@@ -5,6 +5,9 @@
 	includedirs {
 		"..",
 	}
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
 	files {
 		"**.cpp",
 		"**.h"

src/LinearMath/premake4.lua

@@ -1,6 +1,9 @@
 	project "LinearMath"
 
 	kind "StaticLib"
+	if os.is("Linux") then
+	    buildoptions{"-fPIC"}
+	end
 	includedirs {
 		"..",
 	}

test/SharedMemory/premake4.lua

@@ -164,6 +164,9 @@ project ("Test_PhysicsServerLoopBack")
 			"BussIK",
 			"LinearMath"
 		}
+        if os.is("Linux") then
+            links{"dl"}
+        end
 			
 		files {
 			"test.c",
@@ -250,6 +253,9 @@ end
 			"BussIK",
 			"LinearMath"
 		}
+        if os.is("Linux") then
+            links{"dl"}
+        end
 			
 		files {
 			"test.c",

test/gtest-1.7.0/premake4.lua

@@ -16,3 +16,7 @@
 	includedirs {
 		".","include"
 	}
+    if os.is("Linux") then
+        buildoptions{"-fPIC"}
+    end
+