libunwind does not compile

[Ronald Klop]

Hello,

I'm cross compiling for Sheevaplug on a recent amd64/11-CURRENT with clang  
3.8.0.
uname: FreeBSD sjakie.klop.ws 11.0-CURRENT FreeBSD 11.0-CURRENT #8  
r296724M: Sun Mar 13 16:03:31 CET 2016      
root at sjakie.klop.ws:/usr/obj/usr/src/sys/GENERIC-NODEBUG  amd64

Using these settings:
export TARGET_ARCH=arm
export MAKEOBJDIRPREFIX=/usr/obj-arm
export KERNCONF=SHEEVAPLUG
export WITH_NAND=yes
export WITH_ARM_EABI=yes
export WITH_GCC=yes
export WITH_GNUCXX=yes
export WITHOUT_CLANG_IS_CC=yes
export NO_CLEAN=yes
export DESTDIR=/mnt/usbdisk

I get the error below. Is this known/expected? What can I do to fix it? I  
build gcc because clang 3.7 did not work on arm (although it could  
cross-compile to arm).


===> gnu/lib/libgcc (obj,depend,all,install)
(cd /usr/src-arm/gnu/lib/libgcc; make -f  
/usr/src-arm/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile  
MFILE=/usr/src-arm/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile  
GCCDIR=/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc gthr-default.h)
`gthr-default.h' is up to date.
(cd /usr/src-arm/gnu/lib/libgcc; make -f  
/usr/src-arm/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile  
MFILE=/usr/src-arm/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile  
GCCDIR=/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc unwind.h)
`unwind.h' is up to date.
cc -O -pipe   -DTARGET_ARM_EABI -DIN_GCC -DIN_LIBGCC2  
-D__GCC_FLOAT_NOT_NEEDED  -DHAVE_GTHR_DEFAULT   
-I/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcclibs/include   
-I/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc/config  
-I/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc -I.   
-I/usr/src-arm/gnu/lib/libgcc/../../usr.bin/cc/cc_tools -Dinhibit_libc  
-fno-inline -std=gnu99    -fheinous-gnu-extensions -Qunused-arguments  -c  
/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc/config/arm/libunwind.S -o  
libunwind.o
/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc/config/arm/libunwind.S:29:10:  
fatal error: 'machine/acle-compat.h' file not found
#include <machine/acle-compat.h>
          ^
1 error generated.
*** [libunwind.o] Error code 1

make[4]: stopped in /usr/src-arm/gnu/lib/libgcc
1 error

make[4]: stopped in /usr/src-arm/gnu/lib/libgcc
*** [gnu/lib/libgcc__PL] Error code 2

make[3]: stopped in /usr/src-arm
1 error

make[3]: stopped in /usr/src-arm
*** [libraries] Error code 2

make[2]: stopped in /usr/src-arm
1 error

make[2]: stopped in /usr/src-arm
*** [_libraries] Error code 2

make[1]: stopped in /usr/src-arm
1 error

make[1]: stopped in /usr/src-arm
*** [buildworld] Error code 2

make: stopped in /usr/src-arm
1 error

make: stopped in /usr/src-arm




If I hardcode libunwind.S to use  
/usr/src-arm/sys/arm/include/acle-compat.h I get this error:

===> gnu/lib/libgcc (obj,depend,all,install)
(cd /usr/src-arm/gnu/lib/libgcc; make -f  
/usr/src-arm/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile  
MFILE=/usr/src-arm/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile  
GCCDIR=/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc gthr-default.h)
`gthr-default.h' is up to date.
(cd /usr/src-arm/gnu/lib/libgcc; make -f  
/usr/src-arm/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile  
MFILE=/usr/src-arm/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile  
GCCDIR=/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc unwind.h)
`unwind.h' is up to date.
cc -O -pipe   -DTARGET_ARM_EABI -DIN_GCC -DIN_LIBGCC2  
-D__GCC_FLOAT_NOT_NEEDED  -DHAVE_GTHR_DEFAULT   
-I/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcclibs/include   
-I/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc/config  
-I/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc -I.   
-I/usr/src-arm/gnu/lib/libgcc/../../usr.bin/cc/cc_tools -Dinhibit_libc  
-fno-inline -std=gnu99    -fheinous-gnu-extensions -Qunused-arguments  -c  
/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc/config/arm/libunwind.S -o  
libunwind.o
In file included from  
/usr/src-arm/gnu/lib/libgcc/../../../contrib/gcc/config/arm/libunwind.S:29:
/usr/src-arm/sys/arm/include/acle-compat.h:182:4: error: Unable to  
determine architecture version.
#  error Unable to determine architecture version.
    ^
1 error generated.
*** [libunwind.o] Error code 1

make[4]: stopped in /usr/src-arm/gnu/lib/libgcc
1 error

make[4]: stopped in /usr/src-arm/gnu/lib/libgcc
*** [gnu/lib/libgcc__PL] Error code 2

make[3]: stopped in /usr/src-arm
1 error

make[3]: stopped in /usr/src-arm
*** [libraries] Error code 2

make[2]: stopped in /usr/src-arm
1 error

make[2]: stopped in /usr/src-arm
*** [_libraries] Error code 2

make[1]: stopped in /usr/src-arm
1 error

make[1]: stopped in /usr/src-arm
*** [buildworld] Error code 2

make: stopped in /usr/src-arm
1 error

make: stopped in /usr/src-arm



Regards,
Ronald.