NSRunLoop with ARC

[Hoon H.]

Hello. 
I am Hoon and trying GNUstep for server-side web development.
I think if it supports collection classes and std/socket I/O, then it's enough 
to use for me.

Anyway, at first try (command-line echo app), I found some strange behavior. 
`NSRunLoop` 
didn't work well with ARC.

When I issued `-[NSRunLoop run]` method with installing std-in I/O observer, I 
expected it to 
run infinitely. And on OSX, GNUstep, it worked as I expected. But only 
*without* ARC. 
When I turned on ARC on GNUstep, the run-loop quits immediately.

ARC itself works well because I could observe object deallocation.
So I have no idea why GNUstep behaves differently only under ARC enabled.

Should I treat this as a bug? Or am I missing something?

Here's my test code, compile command, and environment.




        #import <Foundation/Foundation.h>

        @interface      AAA : NSObject
        - (void)test1:(id)s;
        @end
        @implementation AAA
        - (void)test1:(id)s
        {
                NSLog(@"%@", s);
        }
        - (void)dealloc
        {
                NSLog(@"DEALLOCED!!");
        }
        @end

        int main(int argc, const char * argv[])
        {
                @autoreleasepool
                {
                        AAA*    aaa     =       [[AAA alloc] init];
                        [[NSNotificationCenter defaultCenter] addObserver:aaa 
selector:@selector(test1:) name:NSFileHandleDataAvailableNotification 
object:nil];
                                
                        [[NSFileHandle fileHandleWithStandardInput] 
waitForDataInBackgroundAndNotify];
                        [[NSRunLoop currentRunLoop] run];
                }
                return 0;
        }





Compile command:




        clang -v
        EE_GNUSTEP_OPTS="-MMD -MP -DGNUSTEP -DGNUSTEP_BASE_LIBRARY=1 
-DGNU_RUNTIME=1 -DGNUSTEP_BASE_LIBRARY=1 -fno-strict-aliasing -fexceptions 
-fobjc-exceptions -D_NATIVE_OBJC_EXCEPTIONS -D_NONFRAGILE_ABI -pthread -fPIC 
-Wall -DGSWARN -DGSDIAGNOSE -Wno-import -g -fgnu-runtime 
-fconstant-string-class=NSConstantString"
        EE_BUILD_OPTS="-I/usr/local/include -L/usr/local/lib -lc -lobjc 
-lgnustep-base -fblocks -fobjc-arc -fobjc-abi-version=3"
        alias OBJCC="clang $EE_GNUSTEP_OPTS $EE_BUILD_OPTS"
        OBJCC *.m

        ./a.out




Environment:

- FreeBSD 9.2-RELEASE
- GNUstep(make:2.6.5, base:1.24.5)
- libobjc2(1.7)

My installation script.

        echo "Writtne for csh."
        echo "Switch to Clang. Ensure you're using 3.3 or above."
        setenv CC clang
        setenv CXX clang++
        setenv CPP clang-cpp

        echo "Prerequisites."
        pkg_add -r portmaster
        cd /usr/ports
        portmaster --no-confirm -G security/gnutls textproc/libxslt devel/icu 
devel/libdispatch devel/libffi

        echo "GNUstep(make:2.6.5, base:1.24.5) + libobjc2(1.7) on FreeBSD 9.2."
        echo "The versions are chosen for production. Do not upgrade without 
test."
        cd ~/
        mkdir t1
        cd t1
        pkg_add -r subversion gmake
        svn co http://svn.gna.org/svn/gnustep/libs/libobjc2/releases/1.7 
libobjc2-1.7 &
        svn co http://svn.gna.org/svn/gnustep/tools/make/tags/make-2_6_5 
make-2_6_5 &
        svn co http://svn.gna.org/svn/gnustep/libs/base/tags/base-1_24_5 
base-1_24_5 &
        wait

        cd make-2_6_5
        ./configure --enable-objc-nonfragile-abi
        gmake install
        cd ..

        cd libobjc2-1.7
        gmake install
        cd ..

        cd make-2_6_5
        ./configure --enable-objc-nonfragile-abi
        gmake install
        cd ..

        echo "Now we need to set some path to GNUstep to use gnustep-make."
        source /usr/GNUstep/System/Library/Makefiles/GNUstep.csh

        cd base-1_24_5
        ./configure --enable-fake-main --disable-unicodeconstants --disable-tls
        gmake install
        cd ..