On Tue, 1 Dec 2020, Martin Storsjö wrote:
On Xcode 12.2 on macOS 11.0 on arm64, the following sequence fails to build:
$ ./gnulib-tool --create-testdir --dir=/tmp/testdir-posix \
--single-configure --avoid=havelib-tests \
`./posix-modules`
$ cd /tmp/testdir-posix
With Xcode 12.2 on arm64 macOS:
$ : | gcc -E -dM - | sort > predefs.out
$ grep -i '\(apple\|mach\|arm\|aarch\)' predefs.out
#define __AARCH64EL__ 1
#define __AARCH64_SIMD__ 1
#define __APPLE_CC__ 6000
#define __APPLE__ 1
#define __ARM64_ARCH_8__ 1
#define __ARM_64BIT_STATE 1
#define __ARM_ACLE 20
On Sat, 4 Jan 2020, Bruno Haible wrote:
Hi Martin,
In this particular case, this math.h header ends up included in a context
wrapped in 'extern "C" {}' surrounding it, which breaks the C++ function
overloading.
The general convention is that header files must be included outside of
any 'exte
Hi Bruno,
On Sat, 4 Jan 2020, Bruno Haible wrote:
Hi Martin,
Thank you for the careful analysis.
The root cause for this issue seems to be that clang has a builtin for the
strndup function, even if the target platform actually doesn't have it.
This manifests itself during configure like thi
Hi,
When building a test package shared in
https://savannah.gnu.org/bugs/?57406
(https://haible.de/bruno/gnu/testdir-posix-mingw.tar.gz) with my
mingw/clang/libc++ based toolchain, I ran into some errors in the gltests
subdirectory.
One of the errors looks like this:
In file included from
Hi,
When building a test package shared in
https://savannah.gnu.org/bugs/?57406
(https://haible.de/bruno/gnu/testdir-posix-mingw.tar.gz) with my
mingw/clang/libc++ based toolchain, I ran into some errors in the gltests
subdirectory.
One of the issues looks like this:
../gllib/string.h:920:
On Wed, 28 Aug 2019, Bruno Haible wrote:
This issue can crop up e.g. when trying to build gettext for mingw (which
has got the gnulib isnan function bundled, even if it isn't used).
I'm regularly building gettext on mingw and haven't seen this issue. Therefore
thanks again for the reproduction
Hi Bruno,
On Wed, 28 Aug 2019, Bruno Haible wrote:
Hi Martin,
Well in addition to macOS, I can also still reproduce the issue on Linux
(Ubuntu 18.04, with its default GCC 7) as well, so maybe it's an issue
with newer C++ standard headers, regardless of platform?
Indeed. I can reproduce it w
Hi,
On Wed, 28 Aug 2019, Bruno Haible wrote:
Hi,
Martin Storsjö wrote:
When the isnan function is enabled in gnulib, the added bits in math.h
break if included in C++ translation units.
A minimal reproducion example is available at
https://martin.st/temp/gnulib-isnan-repro-0.0.0.tar.gz
Hi,
When the isnan function is enabled in gnulib, the added bits in math.h
break if included in C++ translation units.
A minimal reproducion example is available at
https://martin.st/temp/gnulib-isnan-repro-0.0.0.tar.gz (preconfigured and
directly buildable) and
https://martin.st/temp/gnuli
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