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Compiletime test update

--- a/include/GL/gl.h

+++ b/include/GL/gl.h

@@ -688,7 +688,17 @@

 #if COMPILETIME_TINYGL_COMPAT_TEST == 1

-//NO

+//Test to ensure that these types are the correct size

+//If you get an "array is negative" error, simply change

+//the typedefs above to types which match the sizes tested for here.

+//Note that this library NEEDS a 4-byte float type (IEEE 754) so

+//if you don't have one, TinyGL is incompatible.

+

+//Sizeof cannot be tested directly in #if directives.

+//This won't work:

+//#if (sizeof(GLbyte) != 1)

+//#error "GLbyte is wrong size!"

+//#endif

 extern char TGL_BUILDT_GLbyte[ 1-2*(sizeof(GLbyte) != 1)];

 //extern char __BUILDT_error[ 1-2*(sizeof(GLbyte) != 4)];

 extern char TGL_BUILDT_GLshort[ 1-2*(sizeof(GLshort) != 2)];

--- a/include/zfeatures.h

+++ b/include/zfeatures.h

@@ -7,7 +7,7 @@

 #define TGL_FEATURE_ARRAYS         1

 #define TGL_FEATURE_DISPLAYLISTS   1

 //NOTE: Polygon Offset does nothing at the moment.

-#define TGL_FEATURE_POLYGON_OFFSET 1

+#define TGL_FEATURE_POLYGON_OFFSET 0

 #define TGL_FEATURE_POLYGON_STIPPLE 0

 //A stipple pattern is 128 bytes in size.

 #define TGL_POLYGON_STIPPLE_BYTES 128

--- a/src/config.mk

+++ b/src/config.mk

@@ -3,7 +3,7 @@

 # linux

 CC= gcc

-CFLAGS= -Wall -O3 -g -std=c99

+CFLAGS= -Wall -O3 -g -std=c99 -Wno-undef

 LFLAGS=

 # for BeOS PPC