system clang based head -r334932 amd64 -> powerpc64 cross build: fatal error: 'altivec.h' file not found in stage 4.2 "building libraries"

[Note: I sometimes build for powerpc families via clang
as part of identifying what is not yet working. Currently
I do not have access to any powerpc system so I only build.
This involves using devel/powerpc-binutils currently.]

Despite for head -r334932:

# find /usr/src/* -name altivec.h -print 
/usr/src/contrib/llvm/tools/clang/lib/Headers/altivec.h
/usr/src/contrib/gcc/config/rs6000/altivec.h
/usr/src/sys/powerpc/include/altivec.h

and:

# find /usr/obj/powerpc64vtsc_clang_altbinutils -name altivec.h -print
/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp/usr/include/machine/altivec.h
/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp/usr/lib/clang/6.0.0/include/altivec.h
/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/obj-lib32/tmp/usr/include/machine/altivec.h

and:

# find /usr/local -name altivec.h -print
/usr/local/lib/gcc/powerpc64-unknown-freebsd12.0/6.4.0/include/altivec.h
/usr/local/llvm50/lib/clang/5.0.0/include/altivec.h
/usr/local/llvm60/lib/clang/6.0.0/include/altivec.h

and use of clang/clang++:

# c++ --version
FreeBSD clang version 6.0.0 (tags/RELEASE_600/final 326565) (based on LLVM 6.0.0)
Target: x86_64-unknown-freebsd12.0
Thread model: posix
InstalledDir: /usr/bin

my attempt to amd64 -> powerpc64 cross build (-j4) got:

. . .
Building /usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/lib/clang/libclang/Lex/Lexer.o
Building /usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/lib/clang/libclang/Lex/LiteralSupport.o
--- Lex/Lexer.o ---
/usr/src/contrib/llvm/tools/clang/lib/Lex/Lexer.cpp:2401:10: fatal error: 'altivec.h' file not found
#include <altivec.h>
         ^~~~~~~~~~~
1 error generated.
*** [Lex/Lexer.o] Error code 1

make[6]: stopped in /usr/src/lib/clang/libclang
.ERROR_TARGET='Lex/Lexer.o'
.ERROR_META_FILE='/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/lib/clang/libclang/Lex_Lexer.o.meta'
.MAKE.LEVEL='6'
MAKEFILE=''
.MAKE.MODE='meta missing-filemon=yes missing-meta=yes silent=yes verbose'
_ERROR_CMD='c++  -target powerpc64-unknown-freebsd12.0 --sysroot=/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp -B/usr/local/powerpc64-unknown-freebsd12.0/bin/  -O2 -pipe -I/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/lib/clang/libclang -I/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/lib/clang/libllvm -I/usr/src/contrib/llvm/tools/clang/lib/Basic -I/usr/src/contrib/llvm/tools/clang/lib/Driver -I/usr/src/contrib/llvm/tools/clang/include -DCLANG_ENABLE_ARCMT -DCLANG_ENABLE_STATIC_ANALYZER -I/usr/src/lib/clang/include -I/usr/src/contrib/llvm/include -DLLVM_BUILD_GLOBAL_ISEL -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DLLVM_DEFAULT_TARGET_TRIPLE=\"powerpc64-unknown-freeb
 sd12.0\" -DLLVM_HOST_TRIPLE=\"powerpc64-unknown-freebsd12.0\" -DDEFAULT_SYSROOT=\"\" -ffunction-sections -fdata-sections -gline-tables-only -fstack-protector-strong -Qunused-arguments  -std=c++11 -f
 no-exceptions -fno-rtti -gline-tables-only -stdlib=libc++ -Wno-c++11-extensions  -c /usr/src/contrib/llvm/tools/clang/lib/Lex/Lexer.cpp -o Lex/Lexer.o;'
.CURDIR='/usr/src/lib/clang/libclang'
.MAKE='make'
.OBJDIR='/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/lib/clang/libclang'
.TARGETS='all'
DESTDIR='/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp'
LD_LIBRARY_PATH=''
MACHINE='powerpc'
MACHINE_ARCH='powerpc64'
MAKEOBJDIRPREFIX=''
MAKESYSPATH='/usr/src/share/mk'
MAKE_VERSION='20180512'
PATH='/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp/legacy/usr/sbin:/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp/legacy/usr/bin:/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp/legacy/bin:/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp/usr/sbin:/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp/usr/bin:/sbin:/bin:/usr/sbin:/usr/bin'
SRCTOP='/usr/src'
OBJTOP='/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64'
.MAKE.MAKEFILES='/usr/src/share/mk/sys.mk /usr/src/share/mk/local.sys.env.mk /usr/src/share/mk/src.sys.env.mk /root/src.configs/src.conf.powerpc64-clang_altbinutils-bootstrap.amd64-host /usr/src/share/mk/bsd.mkopt.mk /usr/src/share/mk/src.sys.obj.mk /usr/src/share/mk/auto.obj.mk /usr/src/share/mk/bsd.suffixes.mk /root/src.configs/make.conf /usr/src/share/mk/local.sys.mk /usr/src/share/mk/src.sys.mk /dev/null /usr/src/lib/clang/libclang/Makefile /usr/src/share/mk/src.opts.mk /usr/src/share/mk/bsd.own.mk /usr/src/share/mk/bsd.opts.mk /usr/src/share/mk/bsd.cpu.mk /usr/src/share/mk/bsd.compiler.mk /usr/src/share/mk/bsd.linker.mk /usr/src/lib/clang/clang.pre.mk /usr/src/lib/clang/llvm.pre.mk /usr/src/lib/clang/clang.build.mk /usr/src/lib/clang/llvm.build.mk /usr/src/share/mk/bsd.lib.mk /usr/src
 /share/mk/bsd.init.mk /usr/src/share/mk/local.init.mk /usr/src/share/mk/src.init.mk /usr/src/lib/clang/libclang/../Makefile.inc /usr/src/share/mk/bsd.libnames.mk /usr/src/share/mk/src.libnames.mk /u
 sr/src/share/mk/bsd.symver.mk /usr/src/share/mk/bsd.nls.mk /usr/src/share/mk/bsd.files.mk /usr/src/share/mk/bsd.incs.mk /usr/src/share/mk/bsd.confs.mk /usr/src/share/mk/bsd.links.mk /usr/src/share/mk/bsd.dep.mk /usr/src/share/mk/bsd.clang-analyze.mk /usr/src/share/mk/bsd.obj.mk /usr/src/share/mk/bsd.subdir.mk /usr/src/share/mk/bsd.sys.mk'
.PATH='. /usr/src/lib/clang/libclang /usr/src/contrib/llvm/tools/clang/lib'
1 error


I'll note that the -I's for include/'s:

-I/usr/src/contrib/llvm/tools/clang/include
-I/usr/src/lib/clang/include
-I/usr/src/contrib/llvm/include

do not seem to match up with any of:

/usr/src/contrib/llvm/tools/clang/lib/Headers/
/usr/src/sys/powerpc/include/
/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp/usr/include/machine/altivec.h
/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/tmp/usr/lib/clang/6.0.0/include/altivec.h
/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/powerpc.powerpc64/obj-lib32/tmp/usr/include/machine/altivec.h


For reference:

# more ~/src.configs/src.conf.powerpc64-clang_altbinutils-bootstrap.amd64-host 
TO_TYPE=powerpc64
TOOLS_TO_TYPE=${TO_TYPE}
VERSION_CONTEXT=12.0
#
KERNCONF=GENERIC64vtsc-NODBG
TARGET=powerpc
.if ${.MAKE.LEVEL} == 0
TARGET_ARCH=${TO_TYPE}
.export TARGET_ARCH
.endif
#
WITH_CROSS_COMPILER=
WITHOUT_SYSTEM_COMPILER=
#
WITH_LIBCPLUSPLUS=
WITHOUT_BINUTILS_BOOTSTRAP=
WITH_ELFTOOLCHAIN_BOOTSTRAP=
WITH_CLANG_BOOTSTRAP=
WITH_CLANG=
#WITH_CLANG_IS_CC=
WITH_CLANG_FULL=
WITH_CLANG_EXTRAS=
WITHOUT_LLD_BOOTSTRAP=
WITH_LLD=
WITHOUT_LLD_IS_LD=
WITH_LLDB=
#
WITH_BOOT=
# avoid lang/gcc7 and the like attempting
# lib32 (-m32) support that does not work.
# (Register usage mismatch?)
WITHOUT_LIB32=
#
WITHOUT_CLANG_IS_CC=
WITHOUT_BINUTILS=
WITHOUT_GCC_BOOTSTRAP=
WITHOUT_GCC=
WITHOUT_GCC_IS_CC=
WITHOUT_GNUCXX=
#
NO_WERROR=
MALLOC_PRODUCTION=
#
# Avoid converts between pointers to integer types with different sign [-Werror,-Wpointer-sign]
# and such from blocking the build.
WERROR=
#
WITH_REPRODUCIBLE_BUILD=
WITH_DEBUG_FILES=
#
#
# For TO (so-called "cross") stages . . .
# So-called-cross via ${TO_TYPE}-xtoolchain-gcc/${TO_TYPE}-gcc. . .
# TOOLS_TO_TYPE based on ${TO_TYPE}-xtoolchain-gcc related binutils. . .
#
CROSS_BINUTILS_PREFIX=/usr/local/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}/bin/
.if ${.MAKE.LEVEL} == 0
#
# Note: The WITH_CROSS_COMPILER picks up the CROSS_BINUTILS_PREFIX
#       binding automatically.
#
XAS=/usr/local/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}/bin/as
XAR=/usr/local/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}/bin/ar
XNM=/usr/local/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}/bin/nm
XOBJCOPY=/usr/local/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}/bin/objcopy
XOBJDUMP=/usr/local/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}/bin/objdump
XRANLIB=/usr/local/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}/bin/ranlib
XSIZE=/usr/local/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}/bin/size
#NO-SUCH: XSTRINGS=/usr/local/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}/bin/strings
XSTRINGS=/usr/local/bin/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}-strings
.export XAS
.export XAR
.export XNM
.export XOBJCOPY
.export XOBJDUMP
.export XRANLIB
.export XSIZE
.export XSTRINGS
XLD=/usr/local/${TOOLS_TO_TYPE}-unknown-freebsd${VERSION_CONTEXT}/bin/ld
.export XLD
.endif

# more ~/src.configs/make.conf 
CFLAGS.gcc+= -v

# more ~/sys_build_scripts.amd64-host/make_powerpc64vtsc_nodebug_clang_altbinutils-amd64-host.sh 
kldload -n filemon && \
script ~/sys_typescripts/typescript_make_powerpc64vtsc_nodebug_clang_altbinutils-amd64-host-$(date +%Y-%m-%d:%H:%M:%S) \
env __MAKE_CONF="/root/src.configs/make.conf" SRCCONF="/dev/null" SRC_ENV_CONF="/root/src.configs/src.conf.powerpc64-clang_altbinutils-bootstrap.amd64-host" \
WITH_META_MODE=yes \
MAKEOBJDIRPREFIX="/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64" \
make $*


Stage 3 "cross tools" built clang just fine.

My amd64 -> aarch64 cross build finished without reporting an error.


===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)

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