diff --git a/headers/build/HaikuBuildCompatibility.h b/headers/build/HaikuBuildCompatibility.h
index 41e5be4f9c..df2dc26b7d 100644
--- a/headers/build/HaikuBuildCompatibility.h
+++ b/headers/build/HaikuBuildCompatibility.h
@@ -24,6 +24,14 @@
 typedef unsigned long haiku_build_addr_t;
 #define addr_t haiku_build_addr_t
 
+struct sockaddr_storage {
+	uint8	ss_len;			/* total length */
+	uint8	ss_family;		/* address family */
+	uint8	__ss_pad1[6];	/* align to quad */
+	uint64	__ss_pad2;		/* force alignment to 64 bit */
+	uint8	__ss_pad3[112];	/* pad to a total of 128 bytes */
+};
+
 typedef int socklen_t;
 
 #ifndef DEFFILEMODE
@@ -131,6 +139,8 @@ extern float	roundf(float value);
 #		define B_VECTOR_ICON_TYPE 'VICN'
 #	endif
 #	define B_NOT_SUPPORTED				(B_ERROR)
+#	define B_KERNEL_READ_AREA			0
+#	define B_KERNEL_WRITE_AREA			0
 #endif
 
 #if defined(HAIKU_TARGET_PLATFORM_BONE) || defined(HAIKU_TARGET_PLATFORM_DANO)
diff --git a/src/add-ons/kernel/bus_managers/agp_gart/agp_gart.cpp b/src/add-ons/kernel/bus_managers/agp_gart/agp_gart.cpp
index 601aef85e9..17aa1d1fe4 100644
--- a/src/add-ons/kernel/bus_managers/agp_gart/agp_gart.cpp
+++ b/src/add-ons/kernel/bus_managers/agp_gart/agp_gart.cpp
@@ -43,7 +43,6 @@
 #	define PCI_capabilities_ptr		0x34
 #	define PCI_status_capabilities	0x0010
 #	define PCI_cap_id_agp			0x02
-#	define B_NOT_SUPPORTED			B_ERROR
 #endif
 
 #define TRACE_AGP
@@ -629,8 +628,8 @@ Aperture::BindMemory(aperture_memory *memory, addr_t address, size_t size)
 	TRACE("bind %ld bytes at %lx\n", size, base);
 
 	for (addr_t offset = 0; offset < size; offset += B_PAGE_SIZE) {
+		addr_t physicalAddress = 0;
 		status_t status;
-		addr_t physicalAddress;
 
 		if (!physical) {
 			physical_entry entry;