-CFLAGS += -I${INCLUDEDIR}
-.endif
-.ifdef ALTFRAMEWORKSPATH
-PRIVINC = -F${ALTFRAMEWORKSPATH} -I${ALTFRAMEWORKSPATH}/System.framework/PrivateHeaders
-.else
-PRIVINC = -I${NEXT_ROOT}/System/Library/Frameworks/System.framework/PrivateHeaders
+LIBCFLAGS += -I${INCLUDEDIR}
+.else # !ALTLIBCHEADERS
+INCLUDEDIR = ${SDKROOT}/usr/include
+.endif # ALTLIBCHEADERS
+FRAMEWORKS = ${OBJROOT}/Frameworks
+PRIVATEHEADERS = ${FRAMEWORKS}/System.framework/PrivateHeaders
+PRIVINC = -I${PRIVATEHEADERS}
+LIBCFLAGS += ${PRIVINC}
+
+SYMROOTINC = ${SYMROOT}/include
+CFLAGS = -g -arch ${CCARCH} ${RC_NONARCH_CFLAGS} -std=gnu99 -fno-common -fno-builtin -Wmost
+CFLAGS += -D__LIBC__ -D__DARWIN_UNIX03=1 -D__DARWIN_64_BIT_INO_T=1 -D__DARWIN_NON_CANCELABLE=1 -D__DARWIN_VERS_1050=1 -D_FORTIFY_SOURCE=0
+CFLAGS += -DNOID -DLIBC_MAJOR=${SHLIB_MAJOR}
+CFLAGS += -I${.OBJDIR} ${VARIANTINC} -I${SYMROOTINC} -I${.CURDIR}/include
+AINC = -g -arch ${CCARCH} ${RC_NONARCH_CFLAGS}
+AINC += -I${.CURDIR}/${MACHINE_ARCH} ${PRIVINC}
+.if $(MACHINE_ARCH) != arm
+CFLAGS += -force_cpusubtype_ALL
+AINC += -force_cpusubtype_ALL