Bug#933306: ghc: Cross-build fails because host and build architecture do not match
Source: ghc
Version: 8.6.5+dfsg1-2
Severity: normal
Tags: patch
User: helmutg@debian.org
Usertags: rebootstrap
Hello!
Trying to cross-build ghc currently fails with:
GHC build : x86_64-unknown-linux
GHC host : powerpc-unknown-linux
GHC target : powerpc-unknown-linux
LLVM target: powerpc-unknown-linux
checking for path to top of build tree... /<<PKGBUILDDIR>>
checking for powerpc-linux-gnu-windres... no
checking for powerpc-linux-gnu-dllwrap... no
checking for powerpc-linux-gnu-objdump... powerpc-linux-gnu-objdump
configure: error:
You've selected:
BUILD: x86_64-unknown-linux (the architecture we're building on)
HOST: powerpc-unknown-linux (the architecture the compiler we're building will execute on)
TARGET: powerpc-unknown-linux (the architecture the compiler we're building will produce code for)
BUILD must equal HOST; that is, we do not support building GHC itself
with a cross-compiler. To cross-compile GHC itself, set TARGET: stage
1 will be a cross-compiler, and stage 2 will be the cross-compiled
GHC.
This can be reproduced when building ghc with:
sbuild -d sid --host=powerpc --profile=cross --no-arch-all
I was able to fix this problem with the following trivial change:
--- debian/rules~ 2019-07-28 18:31:28.000000000 +0200
+++ debian/rules 2019-07-29 01:39:31.863510243 +0200
@@ -23,7 +23,7 @@
export DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
export DEB_HOST_ARCH ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
-EXTRA_CONFIGURE_FLAGS += --target $(DEB_HOST_GNU_TYPE)
+EXTRA_CONFIGURE_FLAGS += --host $(DEB_BUILD_GNU_TYPE) --build $(DEB_BUILD_GNU_TYPE) --target $(DEB_HOST_GNU_TYPE)
# We're cross-building if DEB_BUILD_GNU_TYPE != DEB_HOST_GNU_TYPE
ifneq ($(DEB_BUILD_GNU_TYPE), $(DEB_HOST_GNU_TYPE))
EXTRA_CONFIGURE_FLAGS += --enable-unregisterised
Would be great if something like that could be done for the next upload,
so it's easier to cross-bootstrap ghc again for powerpc and sh4.
Thanks,
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
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