[Pkg-julia-devel] build errors on i386 (and other archs)

[Norbert Preining]

Hi Mo,

concerning the build failure on some arch, I am not much further. After
discussion with Mose Giordano I was pointed out that we set
	USE_BLAS64=1
for 32-bit archs:

>From the code in d/rules:

COMMON_FLAGS = ... USE_BLAS64=1 ...

But we do not unset it later on:
# Set architecture specific CPU targets. See: #910784
ifneq (,$(filter $(DEB_HOST_ARCH),amd64 kfreebsd-amd64 x32))
COMMON_FLAGS += MARCH=x86-64 \
        JULIA_CPU_TARGET="generic;sandybridge,-xsaveopt,clone_all;haswell,-rdrnd,base(1)"
else ifneq (,$(filter $(DEB_HOST_ARCH),i386 hurd-i386 kfreebsd-i386))
COMMON_FLAGS += MARCH=pentium4 \
        JULIA_CPU_TARGET="pentium4;sandybridge,-xsaveopt,clone_all"
else ifneq (,$(filter $(DEB_HOST_ARCH),arm64))
COMMON_FLAGS += USE_BLAS64=0
else ifneq (,$(filter $(DEB_HOST_ARCH),armhf))
COMMON_FLAGS += JULIA_CPU_TARGET="armv7-a;armv7-a,neon;armv7-a,neon,vfp4"
else ifneq (,$(filter $(DEB_HOST_ARCH),ppc64el))
COMMON_FLAGS += JULIA_CPU_TARGET="pwr8"
else
COMMON_FLAGS += JULIA_CPU_TARGET="generic"
endif


I added
	USE_BLAS64=0
to the
	else ifneq (,$(filter $(DEB_HOST_ARCH),i386 hurd-i386 kfreebsd-i386))
case and now the blas build errors are gone.

According to Mose:
	julia uses ILP64 only for 64-bits different from aarch64: 
	https://github.com/JuliaPackaging/Yggdrasil/blob/16ea9cb4adacc2296fd3890d2bfe3173229b9f1b/O/OpenBLAS/common.jl#L49.
	looking at https://salsa.debian.org/julia-team/julia/-/blob/9790137de70ebdb284016a1d1ac356a10f983006/debian/rules
	I think you enable ILP64 also for 32-bit systems?


I still see build errors in the tests for "file", but that probably
because I built in a chroot as root, which might not have been the best
idea.

This will probably not fix all the other errors, but at least a few.

Any comments? I see you have put some remarks into the rules files
concerning BLAS64, so I wanted to check back with you.

Best

Norbert

--
PREINING Norbert                              https://www.preining.info
Accelia Inc. + IFMGA ProGuide + TU Wien + JAIST + TeX Live + Debian Dev
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