[LTP] build: Fix library prerequisites in testcases.mk

[linuxtestproject.agent@gmail.com]

Hi Andrea,

On 20 October 2026, Andrea Cervesato wrote:
> [PATCH 1/3] build: Fix library prerequisites in testcases.mk

--- [PATCH 2/3] ---

> diff --git a/include/mk/generic_trunk_target.inc b/include/mk/generic_trunk_target.inc
> +MAKE_DEPS += $(abs_top_builddir)/lib/libltp.a $(abs_top_builddir)/libs-all

Medium: testcases/lib already has a per-library ujson prerequisite, so
when ujson needs rebuilding, make -j4 -C testcases/lib tst_run_shell
launches that builder alongside libs-all's ujson builder. Both write the
same objects and libujson.a concurrently, allowing a corrupt archive or
a failed link. Serialize or deduplicate these prerequisite paths so each
library has only one builder.

Verdict - Needs revision

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