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Use shell command substitution correctly when choosing the test job count - #892
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In a make recipe, $(cmd) is a make variable reference, not shell command substitution; it must be written $$(cmd). Outside a recipe, use $(shell cmd).
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Change: Bug fix Pre-merge checks |
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…define MPARG - Choose --jobs once at parse time (TEST_JOBS); a missing is-ci.sh means not under CI. - Evaluate JAVA_HOME once, and fail clearly on macOS if no JDK is found. - Use the same DAIKONDIR idiom in the kvasir-tests and dyncomp-tests Makefile.common. - Define MPARG in tests/dyncomp-tests/Makefile.
…tent DAIKONDIR * New tests/Makefile.jobs holds MPARG, DAIKONDIR, PLUME_SCRIPTS and TEST_JOBS for the three test-driver Makefiles. It fails clearly if is-ci.sh is missing, computes TEST_JOBS once and exports it, and honors a TEST_JOBS value from the command line or environment. * tests/Makefile.common sets JAVA_HOME before including Makefile.user, so the junit and junit5 Makefile.user files no longer duplicate the detection. Locate javac with a single shell command. Check for a missing JDK only when JAVA or JAVAC is expanded, so targets such as "clean" work without a JDK. * java/Makefile: compute JAVA_HOME once and fail clearly if no JDK is found. * Define DAIKONDIR with ":=" in the remaining test Makefiles; fix its depth in tests/daikon-tests/Makefile.
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Inline comments:
Review comments at @java/Makefile:
- Line 29: Update the JAVA_HOME check in the Makefile to treat an empty value as
missing rather than checking whether the variable is undefined, so empty
settings trigger JDK discovery and missing-JDK validation. Use override when
assigning the discovered value so an empty command-line JAVA_HOME can be
replaced.
Review comments at @tests/Makefile.jobs:
- Around line 27-28: Remove the parse-time error triggered when TEST_JOBS is
undefined and is-ci.sh is absent; defer that check to targets that need the
detected job count. Ensure cleanup targets can still run by providing a usable
TEST_JOBS fallback, while keeping help and clean available without is-ci.sh.
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java/Makefiletests/Makefiletests/Makefile.commontests/Makefile.jobstests/daikon-tests/Makefiletests/daikon-tests/junit/Makefile.usertests/daikon-tests/junit5/Makefile.usertests/diff-tests/Makefile.commontests/dyncomp-tests/Makefiletests/dyncomp-tests/Makefile.commontests/kvasir-tests/Makefiletests/kvasir-tests/Makefile.commontests/merge-invariants-tests/drawlet/Makefiletests/parser-tests/Makefile
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This was referenced Oct 10, 2026
mernst
changed the title
…do not set DAIKONDIR Computing the job count only when a recipe uses it lets targets such as clean and help work when plume-scripts is absent. An empty value is treated as unset. The variable is no longer exported.
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Oct 12, 2026
…S_2 fixes Master's DAIKONDIR and tests/Makefile.jdk handling replaces this pull request's check-daikondir.mk. The plume-scripts.mk change is dropped. The is-ci.sh fix is left to codespecs#892.
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In a make recipe,
$(cmd)is a reference to a make variable, which is empty, not shell command substitution. Theis-ci.shtest intests/Makefilewas therefore always false, so CI ran daikon-tests with--jobs=4instead of the intended--jobs=1.tests/Makefile.jobsholds the settings shared by the three test-driver Makefiles (tests/Makefile,tests/kvasir-tests/Makefile,tests/dyncomp-tests/Makefile):MPARG,DAIKONDIR,PLUME_SCRIPTS, andTEST_JOBS.TEST_JOBSis computed once at parse time and exported, so recursive invocations of make do not recompute it. A value set on the command line or in the environment takes precedence.is-ci.shis missing, make stops with an error instead of silently using 4 jobs.Related changes were split into #897 (JAVA_HOME) and #898 (DAIKONDIR).