cross-compiling tirpc header

[Pierrick M Hanlet via Tech-talk <tech-talk at aps.anl.gov>]

Greetings all,
I've recently added the raspberrypi5 platform to my list of supported 
platforms and in attempting to build asyn
found that I've never correctly pointed my builds to pick up the correct 
header file for tirpc:

/usr/local/products/buildroot/raspberrypi5_generic/host/usr/bin/aarch64-linux-gcc 
-D_GNU_SOURCE -D_DEFAULT_SOURCE        -DUSE_TYPED_RSET -DUSE_TYPED_DSET 
-DUSE_TYPED_DRVET -DBUILDING_asyn_API   -DUNIX -Dlinux      -O3 -g   
-Wall -Werror-implicit-function-declaration -DUSE_TYPED_RSET 
-DUSE_TYPED_DSET -DUSE_TYPED_DRVET -DHAVE_LSREC -DHAVE_CALCMOD 
-DHAVE_DEVINT64       -D_FILE_OFFSET_BITS=64 -g -fPIC -I. -I../O.Common 
-I. -I. -I../../asyn/drvAsynSerial/os/Linux 
-I../../asyn/drvAsynSerial/os/default -I.. -I../../asyn/asynDriver 
-I../../asyn/asynGpib -I../../asyn/drvAsynSerial -I../../asyn/interfaces 
-I../../asyn/miscellaneous -I../../asyn/asynPortDriver/exceptions 
-I../../asyn/asynPortDriver -I../../asyn/asynPortClient 
-I../../asyn/devEpics -I../../asyn/asynRecord -I../../asyn/vxi11 
-I../../asyn/drvPrologixGPIB -I../../asyn/gsIP488 -I../../asyn/ni1014 
-I../../asyn/devGpib -I../../include/compiler/gcc 
-I../../include/os/Linux -I../../include 
-I/usr/local/epics/securePVA/Support/ipac/include 
-I/usr/local/epics/securePVA/Support/seq/include 
-I/usr/local/epics/securePVA/Support/calc/include 
-I/usr/local/epics/securePVA/Support/sscan/include 
-I/usr/local/epics/securePVA/base/include/compiler/gcc 
-I/usr/local/epics/securePVA/base/include/os/Linux 
-I/usr/local/epics/securePVA/base/include -I/usr/include/tirpc 
-I/usr/local/products/buildroot/raspberrypi5_generic/host/usr/aarch64-buildroot-linux-gnu/sysroot/usr/include 
-I/usr/local/products/buildroot/raspberrypi5_generic/host/usr/aarch64-buildroot-linux-gnu/sysroot/usr/include/tirpc 
-MM -MF asynManager.d  ../../asyn/asynDriver/asynManager.c
aarch64-linux-gcc: ERROR: unsafe header/library path used in 
cross-compilation: '-I/usr/include/tirpc'

In configure/os/CONFIG_SITE.Common.linux-arm_raspberrypi5, I have:

OP_SYS_INCLUDES+=-I$(GNU_DIR)/$(ARCH_DIR)/sysroot/usr/include
OP_SYS_INCLUDES+=-I$(GNU_DIR)/$(ARCH_DIR)/sysroot/usr/include/tirpc
OP_SYS_LDLIBS += -ltirpc

Should I be using a different environment variable?

I'm using base-7.0.9 with C++20 on AL9 and asyn-R4-44

Many thanks,
Pierrick


-- 
Pierrick Hanlet
Fermi National Accelerator
Accelerator Front End Controls
+1-630-840-5555 -- lab
+1-312-687-4980 -- mobile

"Whether you think you can or think you can't, you're right" -- Henry Ford