Opened 2 months ago

Last modified 13 days ago

#70694 new defect

qemu @9.1.0: error: implicit declaration of function 'pthread_jit_write_protect_np' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

Reported by: tom-programming Owned by:
Priority: Normal Milestone:
Component: ports Version: 2.10.1
Keywords: legacy-os Cc: raimue (Rainer Müller), herbygillot (Herby Gillot), tom-programming, cooljeanius (Eric Gallager), hadrabap (Petr Hadraba), Randrianasulu (Andrew Randrianasulu)
Port: qemu

Description

qemu fails on compilation in macOS 10.15 (Catalina) with newest command line tools

error is: 

:info:build In file included from qapi/qapi-visit-authz.c:13:
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_emulators_qemu/qemu/work/qemu-9.1.0/include/qemu/osdep.h:803:5: error: implicit declaration of function 'pthread_jit_write_protect_np' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
:info:build     pthread_jit_write_protect_np(true);
:info:build     ^
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_emulators_qemu/qemu/work/qemu-9.1.0/include/qemu/osdep.h:808:5: error: implicit declaration of function 'pthread_jit_write_protect_np' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
:info:build     pthread_jit_write_protect_np(false);
:info:build     ^
:info:build 2 errors generated.

which suggest to me lack of an include pthreads.h directive

Attachments (1)

main.log​ (497.8 KB) - added by tom-programming 2 months ago.

Download all attachments as: .zip

Change History (6)

Changed 2 months ago by tom-programming

Attachment: main.log​ added

comment:1 Changed 2 months ago by tom-programming

Cc: tom-programming added

comment:2 Changed 6 weeks ago by cooljeanius (Eric Gallager)

Cc: cooljeanius added

comment:3 Changed 5 weeks ago by hadrabap (Petr Hadraba)

Cc: hadrabap added

comment:4 Changed 2 weeks ago by Randrianasulu (Andrew Randrianasulu)

Cc: Randrianasulu added

comment:5 Changed 2 weeks ago by ryandesign (Ryan Carsten Schmidt)

Keywords: legacy-os added
Summary: qemu @9.1.0 Error on compilation (pthread_jit_write_protect_np) → qemu @9.1.0: error: implicit declaration of function 'pthread_jit_write_protect_np' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

pthread_jit_write_protect_np is only available in macOS 11 and later. I could not find a web page stating that, but in the file /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/include/pthread/pthread.h on my system the function is declared as: 

__API_AVAILABLE(macos(11.0))
__API_UNAVAILABLE(ios, tvos, watchos, driverkit)
void pthread_jit_write_protect_np(int enabled);

The qemu developers deliberately removed the compatibility code that used to allow it to compile on macOS 10.x:

​https://gitlab.com/qemu-project/qemu/-/commit/7b60b971cc2f52ed2a69006a2ad709df2831cd67

The maintainer of the qemu port has previous expressed disinterest in supporting older versions of macOS than the developers of qemu do.

Last edited 13 days ago by ryandesign (Ryan Carsten Schmidt) (previous) (diff)
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