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  • gnu make .NOTPARALLEL

    From Tim Woodall@3:633/10 to All on Saturday, March 14, 2026 19:30:01
    Does anyone understand the nitty gritty of .NOTPARALLEL and whether it
    can do what I want?

    Please note, the example here is a very simple case and there are
    easy ways to do it without using .NOTPARALLEL but I'm specifically
    asking about how .NOTPARALLEL is supposed to work.

    ---

    .NOTPARALLEL: rule1 rule2

    rule: rule1 rule2

    rule1: A B C

    rule2: D E F

    A:
    sleep 2
    echo "A built"

    B:
    sleep 2
    echo "B built"

    C:.
    sleep 2
    echo "C built"

    D:
    sleep 2
    echo "D built"

    E:
    sleep 2
    echo "E built"

    F:.
    sleep 2
    echo "F built"

    ---

    What I want is for A, B and C to be executed serially and for D, E and F
    to be executed serially but that rule1 can be executed in parallel with
    rule2.

    From the manual:
    If the .NOTPARALLEL special target has prerequisites, then each of those prerequisites will be considered a target and all prerequisites of these targets will be run serially. Note that only when building this target
    will the prerequisites be run serially

    No matter what I put for the prerequisites of .NOTPARALLEL (even if I
    put in a completely different target), it runs as if it has no
    prerequisites at all:

    If the .NOTPARALLEL special target with no prerequisites is specified
    anywhere then the entire instance of ma
  • From Tim Woodall@3:633/10 to All on Saturday, March 14, 2026 20:40:01
    On Sat, 14 Mar 2026, Sven Joachim wrote:

    On 2026-03-14 18:29 +0000, Tim Woodall wrote:

    Does anyone understand the nitty gritty of .NOTPARALLEL and whether it
    can do what I want?

    Yes, but not in GNU make 4.3.

    Perfect. Thanks. I'll try a newer version of make.

    --- PyGate Linux v1.5.13
    * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)