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Compilation.Config: Default to dynamic linking with FreeBSD libc.

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Alex Rønne Petersen 2025-05-08 21:12:49 +02:00
parent 2116f2e3b2
commit e8992af7f0
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1 changed files with 15 additions and 7 deletions
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22
src/Compilation/Config.zig
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@ -353,7 +353,9 @@ pub fn resolve(options: Options) ResolveError!Config {
break :b .static;
}
if (explicitly_exe_or_dyn_lib and link_libc and
(target_util.osRequiresLibC(target) or (target.isGnuLibC() and !options.resolved_target.is_native_abi)))
(target_util.osRequiresLibC(target) or
// For these libcs, Zig can only provide dynamic libc when cross-compiling.
((target.isGnuLibC() or target.isFreeBSDLibC()) and !options.resolved_target.is_native_abi)))
{
if (options.link_mode == .static) return error.LibCRequiresDynamicLinking;
break :b .dynamic;
@ -368,12 +370,18 @@ pub fn resolve(options: Options) ResolveError!Config {
if (options.link_mode) |link_mode| break :b link_mode;
if (explicitly_exe_or_dyn_lib and link_libc and options.resolved_target.is_native_abi and
(target.isGnuLibC() or target.isMuslLibC()))
{
// If targeting the system's native ABI and the system's libc is
// glibc or musl, link dynamically by default.
break :b .dynamic;
if (explicitly_exe_or_dyn_lib and link_libc) {
// When using the native glibc/musl ABI, dynamic linking is usually what people want.
if (options.resolved_target.is_native_abi and (target.isGnuLibC() or target.isMuslLibC())) {
break :b .dynamic;
}
// When targeting systems where the kernel and libc are developed alongside each other,
// dynamic linking is the better default; static libc may contain code that requires
// the very latest kernel version.
if (target.isFreeBSDLibC()) {
break :b .dynamic;
}
}
// Static is generally a better default. Fight me.