Re: ld: file not found: _PreallocMode_lookup on macOS Catalina

[Philippe Mathieu-Daudé]

Cc'ing Markus/John/Paolo

On 10/19/20 5:33 PM, Emmanuel Blot wrote:
> Hi,
>
> I’m using the current master (ba2a9a9e)
> I tried to build with both ‘ninja’ and also with ‘make’, as I’m not sure 
> of the current status of the meson refactoring.
>
> The build fails with a weird error message:
>
> ld: file not found: _PreallocMode_lookup
>
> PreallocMode_lookup should be a symbol, shouldn’t it?
> Why is ld trying to load of file with this name?
[...]

> libqemu-riscv32-softmmu.fa.p/meson-generated_.._qapi_qapi-visit-machine-target.c.o 
> libqemu-riscv32-softmmu.fa.p/meson-generated_.._qapi_qapi-events-machine-target.c.o 
> libqemu-riscv32-softmmu.fa.p/meson-generated_.._qapi_qapi-types.c.o 
> -Wl,-dead_strip_dylibs -Wl,-headerpad_max_install_names 
> -Wl,-undefined,error -Wl,-force_load libhwcore.fa -Wl,-force_load 
> libchardev.fa -Wl,-force_load libqmp.fa -Wl,-force_load libauthz.fa 
> -Wl,-force_load libqom.fa -Wl,-force_load libio.fa -Wl,-force_load 
> libcrypto.fa -Wl,-force_load libblock.fa -m64 -framework CoreFoundation 
> -framework IOKit -arch x86_64 -fstack-protector-strong libfdt.a 
> libcapstone.a libqemuutil.a libmigration.fa libhwcore.fa libchardev.fa 
> libqmp.fa libauthz.fa libqom.fa libio.fa libcrypto.fa libblock.fa 
> @block.syms @qemu.syms -lsnappy 
> /usr/local/Cellar/pixman/0.40.0/lib/libpixman-1.dylib -llzo2 
> -L/usr/local/Cellar/libusb/1.0.23/lib -lusb-1.0 /usr/lib/libz.dylib 
> -framework Cocoa -framework CoreAudio 
> -L/usr/local/Cellar/glib/2.66.1/lib -L/usr/local/opt/gettext/lib 
> -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lintl 
> -L/usr/local/Cellar/glib/2.66.1/lib -L/usr/local/opt/gettext/lib 
> -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lintl 
> /usr/local/Cellar/libpng/1.6.37/lib/libpng16.dylib @block.syms 
> -L/usr/local/Cellar/glib/2.66.1/lib -L/usr/local/opt/gettext/lib 
> -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lintl 
> -L/usr/local/Cellar/glib/2.66.1/lib -L/usr/local/opt/gettext/lib 
> -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lintl 
> -L/usr/local/Cellar/gnutls/3.6.15/lib -lgnutls -lutil -lm 
> -L/usr/local/Cellar/glib/2.66.1/lib -L/usr/local/opt/gettext/lib 
> -lgmodule-2.0 -lglib-2.0 -lintl -lpam 
> -L/usr/local/Cellar/gnutls/3.6.15/lib -lgnutls 
> -L/usr/local/Cellar/nettle/3.6/lib -lnettle -framework IOKit -framework 
> CoreFoundation -lxml2 -Wl,-rpath,/usr/local/Cellar/pixman/0.40.0/lib 
> -Wl,-rpath,/usr/lib -lc++
> ld: file not found: _PreallocMode_lookup

Looks like incorrect generated QAPI headers (unsync?).

> clang: error: linker command failed with exit code 1 (use -v to see 
> invocation)
> [2036/2125] Compiling C object tests/fp/fp-bench.p/.._.._fpu_softfloat.c.o
> ninja: build stopped: subcommand failed.
>
> eblot@thurso ~/S/G/g/Q/f/build (master) [1]> cc --version
> Apple clang version 12.0.0 (clang-1200.0.32.2)
> Target: x86_64-apple-darwin19.6.0
> Thread model: posix
> InstalledDir: 
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin