Hello,
config.sub already accepts 'ohos' and 'linux-ohos*' (thank you!), and the
ohos targets are well established in LLVM ('aarch64-linux-ohos') and Rust
('aarch64-unknown-linux-ohos'). However, config.guess cannot detect
HarmonyOS devices, where uname -s reports "HarmonyOS", so native builds
on these systems fall through to "unknown".
This patch adds the missing detection:
* uname -s = HarmonyOS (HongMeng Kernel, musl-based OHOS variant)
* maps uname -m to aarch64/arm/x86_64/riscv64
* outputs $CPU-unknown-linux-ohos, matching the LLVM/Rust triplets and
the already-accepted config.sub 'linux-ohos*' kernel combination
It also adds HarmonyOS to the libc-detection group (HarmonyOS uses musl),
so the existing musl heuristics apply.
Verified on HarmonyOS PC (aarch64, HongMeng Kernel 1.13.0):
$ sh config.guess
aarch64-unknown-linux-ohos
Related history: a config.sub-only OpenHarmony patch was posted here in
Feb 2024 ("[PATCH] config.sub: Recognize OpenHarmony OS" by Jonathan
Schwender); the sub side has since landed. An earlier submission of a
HarmonyOS variant was mistakenly sent to bug-gnulib in March 2026 --
apologies for the noise; this is the corrected resubmission to the right
list.
Background: this detection unblocks native builds of autotools-based
software on OpenHarmony/HarmonyOS PC devices, where currently every
port has to carry a local config.guess/config.sub patch (our community
porting archive alone carries 2268 such patches across 1031 packages).
--- a/config.guess
+++ b/config.guess
@@ -150,7 +150,7 @@
UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
case $UNAME_SYSTEM in
-Ironclad|Linux|GNU|GNU/*)
+Ironclad|Linux|GNU|GNU/*|HarmonyOS)
LIBC=unknown
set_cc_for_build
@@ -1432,6 +1432,15 @@
*:Haiku:*:*) # Haiku modern gcc (not bound by BeOS compat)
GUESS=$UNAME_MACHINE-unknown-haiku
;;
+ *:HarmonyOS:*:*) # HarmonyOS (HongMeng Kernel), musl-based OHOS variant
+ case $UNAME_MACHINE in
+ aarch64|arm64) UNAME_MACHINE=aarch64 ;;
+ armv7*|arm*) UNAME_MACHINE=arm ;;
+ x86_64|amd64) UNAME_MACHINE=x86_64 ;;
+ riscv64) UNAME_MACHINE=riscv64 ;;
+ esac
+ GUESS=$UNAME_MACHINE-unknown-linux-ohos
+ ;;
SX-4:SUPER-UX:*:*)
GUESS=sx4-nec-superux$UNAME_RELEASE
;;
Best regards,
goblinrs
OpenHarmony PC Developer community
