by f.guerrieri:

What steps will reproduce the problem?
1. After issue #324, update from svn, remove the dir
objdir/x86_64-apple-darwin10.0.0 and its contents (including dirs  .deps
and .libs)
2. make
3. wait a few minutes

What is the expected output? What do you see instead?
libtool: compile:  /Users/macbook/projects/objdir/./gcc/xgcc
-B/Users/macbook/projects/objdir/./gcc/
-B/usr/local/x86_64-apple-darwin10.0.0/bin/
-B/usr/local/x86_64-apple-darwin10.0.0/lib/ -isystem
/usr/local/x86_64-apple-darwin10.0.0/include -isystem
/usr/local/x86_64-apple-darwin10.0.0/sys-include -DHAVE_CONFIG_H -I.
-I../../../gccgo/libgo -I ../../../gccgo/libgo/runtime
-I../../../gccgo/libgo/../libffi/include -I../libffi/include
-fplan9-extensions -Wall -Wextra -Wwrite-strings -Wcast-qual -Werror -g -O2
-MT malloc.lo -MD -MP -MF .deps/malloc.Tpo -c
../../../gccgo/libgo/runtime/malloc.c  -fno-common -DPIC -o .libs/malloc.o
../../../gccgo/libgo/runtime/malloc.c:178:1: error: constructor priorities
are not supported
make[3]: *** [malloc.lo] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-target-libgo] Error 2
make: *** [all] Error 2


What is your $GOOS?  $GOARCH?
darwin, i386

Which revision are you using?  (hg identify)
~/projects/gccgo 546 $ svn update
U    libgcc/generic-morestack.c
U    libgcc/config/i386/morestack.S
U    gcc/config/i386/i386.c
U    libgo/config.h.in
U    libgo/configure
U    libgo/configure.ac
U    libgo/runtime/go-reflect-chan.c
Updated to revision 154520.


Please provide any additional information below.
~/projects/objdir 590 $ gcc -v
Using built-in specs.
Target: i686-apple-darwin10
Configured with: /var/tmp/gcc/gcc-5646~6/src/configure --disable-checking
--enable-werror --prefix=/usr --mandir=/share/man
--enable-languages=c,objc,c++,obj-c++
--program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ --with-slibdir=/usr/lib
--build=i686-apple-darwin10 --with-gxx-include-dir=/include/c++/4.2.1
--program-prefix=i686-apple-darwin10- --host=x86_64-apple-darwin10
--target=i686-apple-darwin10
Thread model: posix
gcc version 4.2.1 (Apple Inc. build 5646)

I tried to "fix" the bug by removing the priority: that is
row 174-176 of my copy of malloc.c become

void
__attribute__ ((constructor)) /*(101)))*/
mallocinit(void)


but then I get the following error:
libtool: compile:  /Users/macbook/projects/objdir/./gcc/gccgo
-B/Users/macbook/projects/objdir/./gcc/ -O2 -g -c
../../../gccgo/libgo/go/runtime/extern.go
../../../gccgo/libgo/go/runtime/type.go 
go1: error: ‘-fsplit-stack’ currently only supported on GNU/Linux
make[3]: *** [runtime/libruntime.a] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-target-libgo] Error 2
make: *** [all] Error 2