make compiler failed

[liumingc]

When make compiler, it failed with the following error message:

Making compiler1
time -f "%E %Mk"        java -Dfrege.javac=internal -Xss4m -Xmx2222m -cp build -jar fregec.jar -d build -hints -ascii -nocp -prefix a -sp "shadow:."  -target 1.7  -make frege.compiler.Main
E ./frege/control/Concurrent.fr:37: overloaded `poll´ is ambiguous at type 
    MutableIO (BlockingQueue t7694)->t7693
    It could mean one of 
    BlockingQueue.pollα  ::  forall e.MutableIO (BlockingQueue e) -> IO (Maybe e)
    BlockingQueue.pollβ  ::  forall e.MutableIO (BlockingQueue e) -> Int -> TimeUnit -> IO (Maybe e)
W ./frege/control/Concurrent.fr:37: application of
    MVar.poll will diverge.
Control.Concurrent: build failed because of compilation errors.
Compiler.Main: build failed because module `Control.Concurrent` not built.
Build failed.
Command exited with non-zero status 1
0:06.89 588204k
make: *** [Makefile:217: compiler1] Error 1

And my compiler version is

javac -version
javac 1.8.0_201

[Ingo60]

Yeah, we had some improvements in Resolution of overloaded native functions a year ago.
You seem to use a Compiler that doesn't incorporate those yet.

(It's probably time to upload a more recent fregec.jar, I guess.)

Anyway, if you don't want to wait until then, you can do the following:

• check out the frege compiler up to the changes on Feb 17

• make a Compiler

• check out the last two commits after Feb 17

• make the compiler using the intermediate one

By the way, you'll not succeed with java 1.8, the javac is broken. You should do something like

make JAVA=java9 fregec.jar # where java9 is some Java > 1.8

make JAVA=java8 dist # include the repl, needs Java FX libraries and jline

Note that you can run the result with java8 and most probably compile your own projects using java8. It's just this one compiler source file the java8 compiler is unable to handle.

[Ingo60]

You can download the latest compiler here: https://github.com/Frege/frege/releases/tag/3.25alpha

[liumingc]

OK, thanks