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c-ares linking problem on Apple, cross-compiling for ARM.
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From: Ben Greear via curl-library <curl-library_at_lists.haxx.se>
Date: Tue, 24 Jan 2023 21:45:52 -0800
So, I'm well off in the weeds here.
Trying to compile lib-cares on macos (using clang), for ARM target on x86-64 macos machine. I'm able to see the
c files compiled for the right target, but the linker part is not passing the -target
flag it seems.
This inline hack to the auto-generated libtool will make it compile:
perl -i.bkp -pe 's/^archive_cmds.*\K-install_name/-target arm64-apple-macos11 -install_name/' libtool
Here is diff for reference:
< archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -target arm64-apple-macos11 -install_name \$rpath/\$soname
\$verstring \$single_module"
Date: Tue, 24 Jan 2023 21:45:52 -0800
So, I'm well off in the weeds here.
Trying to compile lib-cares on macos (using clang), for ARM target on x86-64 macos machine. I'm able to see the
c files compiled for the right target, but the linker part is not passing the -target
flag it seems.
This inline hack to the auto-generated libtool will make it compile:
perl -i.bkp -pe 's/^archive_cmds.*\K-install_name/-target arm64-apple-macos11 -install_name/' libtool
Here is diff for reference:
< archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -target arm64-apple-macos11 -install_name \$rpath/\$soname
\$verstring \$single_module"
---
> archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring \$single_module"
12011c12011
< archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -target arm64-apple-macos11 -install_name \$rpath/\$soname
\$verstring \$single_module"
---
> archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring \$single_module"
I cannot figure out a better way to do this, but maybe someone can use this as a hint to fix it better.
Here is how I am doing the configure step:
(cd c-ares.ct && \
export CFLAGS="-mmacosx-version-min=11.0 -target arm64-apple-macos11"; \
export LDFLAGS="-mmacosx-version-min=11.0 -target arm64-apple-macos11"; \
./configure --enable-warnings --host=aarch64-apple-darwin && \
perl -i.bkp -pe 's/^archive_cmds.*\K-install_name/-target arm64-apple-macos11 -install_name/' libtool)
Thanks,
Ben
--
Ben Greear <greearb_at_candelatech.com>
Candela Technologies Inc http://www.candelatech.com
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Received on 2023-01-25