https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246540
Bug ID: 246540
Summary: /usr/bin/as deprecation warning from BZ233611 &
r350518 breaks GNU assembler detection in cmake
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: gnu
Assignee: b...@freebsd.org
Reporter: d...@freebsd.org
https://reviews.freebsd.org/D24664 contains an update to
databases/foundationdb-devel which now breaks with following cmake warning, at
least on 13.0-CURRENT > r3661107. I expect the next pkg.freebsd.org build will
fail on this as well.
Checking whether the ASM compiler is GNU using "--version" did not match "(GNU
assembler)|(GCC)|(Free Software Foundation)":
FreeBSD clang version 10.0.0 (g...@github.com:llvm/llvm-project.git
llvmorg-10.0.0-0-gd32170dbd5b)
Target: x86_64-unknown-freebsd13.0
Thread model: posix
InstalledDir: /usr/bin
presumably after running this:
$ as --version
warning: as 2.17.50 is deprecated in FreeBSD and will be removed
GNU assembler 2.17.50 [FreeBSD] 2007-07-03
Copyright 2007 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License. This program has absolutely no warranty.
This assembler was configured for a target of `x86_64-unknown-freebsd'.
devel/cmake (v3.17.2) includes:
cmake-3.17.2/Modules/CMakeDetermineASMCompiler.cmake
59: set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_GNU "(GNU
assembler)|(GCC)|(Free Software Foundation)")
I'm not clear what the right fix here is, as this is probably not the only port
that will break on this.
I've learned about:
- `cmake -D_CMAKE_TOOLCHAIN_PREFIX=llvm-` via
https://stackoverflow.com/questions/7031126/switching-between-gcc-and-clang-llvm-using-cmake
which would be fine if this port had an explicit llvm dependency (which it
doesn't)
- if /usr/bin/as *appended* its warning to the version, on the same first line,
CMakeDetermineASMCompiler.cmake could simply detect that, and we'd have an
additional local patch.
as --version
GNU assembler 2.17.50 [FreeBSD] 2007-07-03 warning: as 2.17.50 is deprecated in
FreeBSD and will be removed
committed here:
Author: emaste <ema...@freebsd.org>
Date: Thu Aug 1 19:01:27 2019 +0000
as: add deprecation notice to the man page
In the future FreeBSD will ship without GNU binutils 2.17.50. Add a
note advising users who require GNU as to install the binutils port
or package.
Note that on armv7, arm64, amd64, i386 we currently ship only two
binutils tools (as and objdump). A deprecation notice was added to
objdump's man page some time ago.
PR: 233611
Discussed with: jhb
MFC after: 1 week
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Notes:
svn path=/head/; revision=350518
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