[Buildroot] [PATCH 1/1] package/docker-cli: needs NPTL

[Buildroot] [PATCH 1/1] package/docker-cli: needs NPTL

[Bernd Kuhls]

pthread_unix.c: In function 'x_cgo_getstackbound':
pthread_unix.c:96:9: error: implicit declaration of function
 'pthread_getattr_np'; did you mean 'pthread_attr_init'?
 [-Werror=implicit-function-declaration]

Fixes:
https://autobuild.buildroot.net/results/756/756ceb50b78218ac6085e0143d9f358f97d9568d/

The build error occured already in 2023:
https://autobuild.buildroot.net/results/c0b/c0ba9647824dd2dc811c31e7b999167f04d0be49/
A backport to LTS branches should be considered.

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
---
 package/docker-cli-buildx/Config.in     | 6 +++---
 package/docker-cli/Config.in            | 6 +++---
 package/mender-update-modules/Config.in | 6 +++---
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/package/docker-cli-buildx/Config.in b/package/docker-cli-buildx/Config.in
index 486f1196c3..d1f9bc2804 100644
--- a/package/docker-cli-buildx/Config.in
+++ b/package/docker-cli-buildx/Config.in
@@ -2,7 +2,7 @@ config BR2_PACKAGE_DOCKER_CLI_BUILDX
 	bool "docker-cli-buildx"
 	depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
 	depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
-	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # docker-cli
 	select BR2_PACKAGE_DOCKER_CLI
 	help
 	  buildx is a Docker CLI plugin for extended build
@@ -10,7 +10,7 @@ config BR2_PACKAGE_DOCKER_CLI_BUILDX
 
 	  https://github.com/docker/buildx
 
-comment "docker-cli-buildx needs a toolchain w/ threads"
+comment "docker-cli-buildx needs a toolchain w/ NPTL"
 	depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
 	depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
-	depends on !BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL
diff --git a/package/docker-cli/Config.in b/package/docker-cli/Config.in
index 52e7f7c871..2befb87578 100644
--- a/package/docker-cli/Config.in
+++ b/package/docker-cli/Config.in
@@ -2,7 +2,7 @@ config BR2_PACKAGE_DOCKER_CLI
 	bool "docker-cli"
 	depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
 	depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
-	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	select BR2_PACKAGE_HOST_GO
 	help
 	  Docker is a platform to build, ship,
@@ -20,7 +20,7 @@ config BR2_PACKAGE_DOCKER_CLI_STATIC
 
 endif
 
-comment "docker-cli needs a toolchain w/ threads"
+comment "docker-cli needs a toolchain w/ NPTL"
 	depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
 	depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
-	depends on !BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL
diff --git a/package/mender-update-modules/Config.in b/package/mender-update-modules/Config.in
index 1fd7384f59..7c5a7e4442 100644
--- a/package/mender-update-modules/Config.in
+++ b/package/mender-update-modules/Config.in
@@ -76,7 +76,7 @@ config BR2_PACKAGE_MENDER_UPDATE_MODULES_DOCKER
 	bool "docker"
 	depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS # docker-engine, docker-cli
 	depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS # docker-engine, docker-cli
-	depends on BR2_TOOLCHAIN_HAS_THREADS # docker-engine, docker-cli
+	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # docker-cli
 	depends on !BR2_TOOLCHAIN_USES_UCLIBC # containerd -> runc
 	depends on BR2_USE_MMU # containerd
 	depends on !BR2_PACKAGE_CGROUPFS_MOUNT # docker-engine
@@ -98,11 +98,11 @@ config BR2_PACKAGE_MENDER_UPDATE_MODULES_DOCKER
 
 	  https://github.com/mendersoftware/mender-update-modules/tree/master/docker
 
-comment "docker support needs a glibc or musl toolchain w/ threads, headers >= 5.2"
+comment "docker support needs a glibc or musl toolchain w/ NPTL, headers >= 5.2"
 	depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
 	depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
 	depends on BR2_PACKAGE_LIBSECCOMP_ARCH_SUPPORTS
-	depends on !BR2_TOOLCHAIN_HAS_THREADS || \
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || \
 		BR2_TOOLCHAIN_USES_UCLIBC || \
 		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_2
 	depends on BR2_USE_MMU
-- 
2.47.3

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Re: [Buildroot] [PATCH 1/1] package/docker-cli: needs NPTL

[Thomas Petazzoni via buildroot]

On Sun, Oct 25, 2026 at 11:33:54AM +0100, Bernd Kuhls wrote:
> pthread_unix.c: In function 'x_cgo_getstackbound':
> pthread_unix.c:96:9: error: implicit declaration of function
>  'pthread_getattr_np'; did you mean 'pthread_attr_init'?
>  [-Werror=implicit-function-declaration]
> 
> Fixes:
> https://autobuild.buildroot.net/results/756/756ceb50b78218ac6085e0143d9f358f97d9568d/
> 
> The build error occured already in 2023:
> https://autobuild.buildroot.net/results/c0b/c0ba9647824dd2dc811c31e7b999167f04d0be49/
> A backport to LTS branches should be considered.
> 
> Signed-off-by: Bernd Kuhls <bernd@kuhls.net>

Applied to master, thanks!

Best regards,

Thomas Petazzoni
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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