Limit frame size restriction to internal repo

Fixes #91

build/definitions.mk

@@ -137,6 +137,7 @@ MATHEMATICAL =								\
 	-fwrapv
 
 DEFAULT_CPPFLAGS =							\
+	-DCOSMO								\
 	-DMODE='"$(MODE)"'						\
 	-DIMAGE_BASE_VIRTUAL=$(IMAGE_BASE_VIRTUAL)			\
 	-nostdinc							\

libc/integral/c.inc

@@ -730,7 +730,7 @@ typedef uint64_t uintmax_t;
 #pragma GCC diagnostic error "-Wredundant-decls"
 #if __GNUC__ >= 6
 #pragma GCC diagnostic error "-Wnonnull-compare"
-#if !defined(MODE_DBG) && !defined(STACK_FRAME_UNLIMITED)
+#if defined(COSMO) && !defined(MODE_DBG) && !defined(STACK_FRAME_UNLIMITED)
 #pragma GCC diagnostic error "-Wframe-larger-than=4096"
 #if __GNUC__ >= 9
 #pragma GCC diagnostic error "-Walloca-larger-than=1024"