Bruno Haible <br...@clisp.org>, 2024-02-20 12:44:
Bogdan wrote:
Right. And, as I suspected, nothing in any LIBS, LD*, no libobjc found.
Does it work if you put
AC_LANG([Objective C])
somewhere between the lines
cat >> configure.ac << 'END'
and the first
END
following it (i.e., in the 'configure.ac' file) in the test?
No: With this added configure.ac line (before AC_OUTPUT), the
two tests t/objcxx-minidemo.sh and t/objcxx-deps.sh still fail.
If not, do you know any function name that we could use in
AC_CHECK_LIB to check for libobjc?
[...]
======================================================================
produces link errors w.r.t. the symbols
objc_autoreleasePoolPush
objc_autoreleasePoolPop
__objc_exec_class
Is one of them suitable for testing? It depends on the ABI. Looking at
https://opensource.apple.com/source/objc4/objc4-706/runtime/objc-abi.h.auto.html
it seems better to choose one of the symbols
_objcInit
objc_getProperty
objc_setProperty
objc_setProperty_atomic
objc_setProperty_nonatomic
...
objc_copyStruct
objc_copyCppObjectAtomic
_objc_empty_cache
...
But wait! The name of the library 'libobjc' is not standardized either.
I would try to just compile a simple Objective-C++ program and see whether that
works or not. Such as:
That's what I would expect from Autoconf...
[...]
=======================================================================
Missing symbols with clang on OpenBSD:
objc_msg_lookup_sender
__objc_exec_class
Missing symbols with clang on Ubuntu:
objc_msg_lookup
__objc_exec_class
[...]
Assuming that the library is named "libobjc", I'm attaching a patch
that searches for the above symbols in the library. The tests worked
for me without this, and work after. Feel free to add more rows if the
library name is different.
Gathering the other thread:
> So, in summary, I suggest to use the option '-x' instead of
'--verbose'.
> It makes the t/strip2.sh test succeed on OpenBSD. Then you can
remove the comment "This test needs GNU binutils strip.".
Patch attached.
--
Regards - Bogdan ('bogdro') D. (GNU/Linux & FreeDOS)
X86 assembly (DOS, GNU/Linux): http://bogdro.evai.pl/index-en.php
Soft(EN): http://bogdro.evai.pl/soft http://bogdro.evai.pl/soft4asm
www.Xiph.org www.TorProject.org www.LibreOffice.org www.GnuPG.org
From 06852fb43569eac608b95dea838858cd75e37327 Mon Sep 17 00:00:00 2001
From: Bogdan Drozdowski <>
Date: Thu, 22 Feb 2024 22:03:29 +0100
Subject: [PATCH] Try to fix Objective-c++ on OpenBSD
---
t/objcxx-deps.sh | 4 ++++
t/objcxx-minidemo.sh | 4 ++++
2 files changed, 8 insertions(+)
diff --git a/t/objcxx-deps.sh b/t/objcxx-deps.sh
index 1f39507fd..519c33244 100644
--- a/t/objcxx-deps.sh
+++ b/t/objcxx-deps.sh
@@ -21,6 +21,10 @@
cat >> configure.ac << 'END'
AC_PROG_OBJCXX
+AC_CHECK_LIB([objc],[__objc_exec_class])
+AC_CHECK_LIB([objc],[objc_getProperty])
+AC_CHECK_LIB([objc],[objc_msg_lookup_sender])
+AC_CHECK_LIB([objc],[objc_msg_lookup])
AC_OUTPUT
END
diff --git a/t/objcxx-minidemo.sh b/t/objcxx-minidemo.sh
index ec0e8e129..f6f53c151 100644
--- a/t/objcxx-minidemo.sh
+++ b/t/objcxx-minidemo.sh
@@ -23,6 +23,10 @@ required=native
cat >> configure.ac << 'END'
AC_PROG_OBJCXX
AC_CONFIG_HEADERS([config.h])
+AC_CHECK_LIB([objc],[__objc_exec_class])
+AC_CHECK_LIB([objc],[objc_getProperty])
+AC_CHECK_LIB([objc],[objc_msg_lookup_sender])
+AC_CHECK_LIB([objc],[objc_msg_lookup])
AC_OUTPUT
END
--
2.35.1
From 4005c0dee31133571c31e79fb5c248731e135f0c Mon Sep 17 00:00:00 2001
From: Bogdan Drozdowski <>
Date: Thu, 22 Feb 2024 21:01:39 +0100
Subject: [PATCH] Fix strip on OpenBSD and others
---
t/strip2.sh | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/t/strip2.sh b/t/strip2.sh
index a367dd0fe..e48dddc7a 100644
--- a/t/strip2.sh
+++ b/t/strip2.sh
@@ -15,7 +15,7 @@
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# Ensure install-strip works when STRIP consists of more than one word.
-# This test needs GNU binutils strip. See sister test 'strip3.sh'.
+# See sister test 'strip3.sh'.
required='cc strip'
. test-init.sh
@@ -39,7 +39,7 @@ $ACLOCAL
$AUTOCONF
$AUTOMAKE -a
-./configure --prefix="$(pwd)/inst" STRIP='strip --verbose'
+./configure --prefix="$(pwd)/inst" STRIP='strip -x'
$MAKE
$MAKE install-strip
--
2.35.1
