62 lines
1.9 KiB
Diff
62 lines
1.9 KiB
Diff
From d68601062729e7cc35dca2ffce84c6d93703a7bf Mon Sep 17 00:00:00 2001
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From: Simon McVittie <smcv@debian.org>
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Date: Fri, 8 Oct 2021 11:42:49 +0100
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Subject: [PATCH] build: Link with libatomic if necessary
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The implementation of atomic operations in gcc uses atomic opcodes if
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supported, but falls back to a library implementation if necessary.
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Link that library on architectures where 64-bit atomic operations need it,
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such as Debian armel (ARMv5 EABI softfloat), mipsel and powerpc.
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Resolves: https://gitlab.gnome.org/GNOME/gjs/-/issues/442
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Signed-off-by: Simon McVittie <smcv@debian.org>
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---
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meson.build | 18 +++++++++++++++++-
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1 file changed, 17 insertions(+), 1 deletion(-)
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diff --git a/meson.build b/meson.build
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index e28c4bf9..ed857d7f 100644
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--- a/meson.build
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+++ b/meson.build
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@@ -109,6 +109,8 @@ endif
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### Check for required libraries ###############################################
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+null_dep = dependency('', required : false)
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+
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# Note: Notify GNOME release team when adding or updating dependencies
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glib_required_version = '>= 2.66.0'
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glib = dependency('glib-2.0', version: glib_required_version,
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@@ -180,6 +182,20 @@ features.''')
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endif
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endif
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+if cxx.links('''
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+#include <atomic>
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+
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+int main(void)
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+{
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+ std::atomic_int64_t value = ATOMIC_VAR_INIT(0);
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+ return value.load();
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+}
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+''', name: '64-bit atomics built-in')
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+ libatomic = null_dep
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+else
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+ libatomic = cc.find_library('atomic', required: false)
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+endif
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+
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build_profiler = sysprof_capture.found() and not get_option('profiler').disabled()
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profiler_deps = [sysprof_capture]
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if build_profiler and not cxx.has_function('timer_settime')
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@@ -458,7 +474,7 @@ module_resource_srcs = gnome.compile_resources('js-resources',
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c_name: 'js_resources')
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libgjs_dependencies = [glib, gobject, gthread, gio, gi, ffi, spidermonkey,
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- readline]
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+ readline, libatomic]
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pkg_dependencies = [glib, gobject, gthread, gio, gi, ffi, spidermonkey]
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libraries_private = []
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--
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GitLab
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