diff --git a/GNUmakefiles/LibIncludes b/GNUmakefiles/LibIncludes
index 55e3ba583deec6f263b77b22c32200f58f7091b4..ea44cdcef4502db30f20f4104c2f0b72c42496b7 100644
--- a/GNUmakefiles/LibIncludes
+++ b/GNUmakefiles/LibIncludes
@@ -9,10 +9,17 @@ INCLUDED_LIBINCLUDES = YES
 # building libraries that depend upon other libraries, despite there not being
 # any link step for such components.
 
+IMAGEINC   = -I${LIBDIR}/ImageLib
+JSINC      = -I${LIBDIR}/JSLib
 OSINC      = -I${LIBDIR}/OSLib/Core -I${LIBDIR}/OSLib/Computer -I${LIBDIR}/OSLib/User -I${LIBDIR}/OSLib/Toolbox -I${LIBDIR}/OSLib/Core/oslib -I${LIBDIR}/OSLib/Computer/oslib -I${LIBDIR}/OSLib/User/oslib -I${LIBDIR}/OSLib/Toolbox/oslib
 # Deprecated synonym
 INCLUDE_OSLIB = ${OSINC}
+MBEDTLSINC = -I${LIBDIR}/mbedTLS
+NSPRINC    = -I${LIBDIR}/NSPRLib
+RINC       = -I${LIBDIR}/RISC_OSLib
 TBOXINC    = -I${LIBDIR}/tboxlibs
 TCPIPINC   = -I${LIBDIR}/TCPIPLibs
+USBINC     = -I${LIBDIR}/USB
+ZINC       = -I${LIBDIR}/zlib
 
 # EOF
diff --git a/Makefiles/LibIncludes b/Makefiles/LibIncludes
index 379ed81ebc4268a8d3f4f10e0271d4278100fd43..796c5ffbfc9bb9fe2c5230b4f8a87df557b88a91 100644
--- a/Makefiles/LibIncludes
+++ b/Makefiles/LibIncludes
@@ -9,10 +9,17 @@ INCLUDED_LIBINCLUDES = YES
 # building libraries that depend upon other libraries, despite there not being
 # any link step for such components.
 
+IMAGEINC   = -IC:ImageLib
+JSINC      = -IC:JSLib
 OSINC      = -IOS:
 # Deprecated synonym
 INCLUDE_OSLIB = ${OSINC}
+MBEDTLSINC = -IC:mbedTLS
+NSPRINC    = -IC:NSPRLib
+RINC       = -IRISCOSLIB:
 TBOXINC    = -Itbox:
 TCPIPINC   = -ITCPIPLibs:
+USBINC     = -IC:USB
+ZINC       = -IC:zlib
 
 # EOF