592899 - pymake does not build command-line targets in parallel

Status: RESOLVED INCOMPLETE

(Firefox Build System :: General, defect)

Description

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Given the following Makefile:

all: sleep2 sleep1

sleep2:
	@echo sleep 2 begin
	@sleep 2
	@echo sleep 2 end

sleep1:
	@echo sleep 1 begin
	@sleep 1
	@echo sleep 1 end

then the following three commands:
$ make -j2 all
$ pymake -j2 all
$ make -j2 sleep 2 sleep1
produce the following output:
sleep 2 begin
sleep 1 begin
sleep 1 end
sleep 2 end
while the following three commands:
$ make all
$ pymake all
$ pymake -j2 sleep2 sleep1
produce the following output:
sleep 2 begin
sleep 2 end
sleep 1 begin
sleep 1 end

Apparently bsmedberg went to great lengths to ensure that pymake built command-line targets serially, but I tried three different versions of gmake and they all make command-line targets in parallel.

Comment 1

[(not currently active) Ted Mielczarek]

I don't think we're going to fix pymake bugs anymore.