building on Mac

[Kazu Yamamoto ( 山本和彦 )]

Hi,

First of all, I would like to ask whether or not someone can build
(not "validate") GHC head on Mountain Lion. The reason why I ask is
that I found this issue:

	http://stackoverflow.com/questions/13539066/can-write-to-a-non-blocking-fd-return-eagain-when-select-reports-it-as-writabl

And I would like to ask what about on Lion or on Snow Leopard? Is this
building failure specific to Mountain Lion?

Here is what I know so far:

- This issue happens when
  libraries/template-haskell/Language/Haskell/TH/Syntax.hs is
  compiled.

- According to "dtruss", "select()" called by ghc-stage1 is waiting a
  pipe forever.

- No "gcc" is executed during this compiling.

- This happens with both 32bit bootstrapping GHC and 64bit one.

Attached is a log of "dtruss".

Another question: Is ghc-stage1 compiled with "-threaded"?

--Kazu

69117/0x10d80b2:  pipe(0x7FFF6DDBF240, 0x0, 0x0)		 = 3 0
69117/0x10d80b2:  pipe(0x7FFF6DDBF230, 0x0, 0x4)		 = 5 0
69117/0x10d80b2:  pipe(0x7FFF6DDBF220, 0x0, 0x6)		 = 7 0
69117/0x10d80b2:  sigprocmask(0x1, 0x110248EA8, 0x110248EAC)		 = 0x0 0
69117/0x10d80b2:  setitimer(0x0, 0x7FFF6DDBF1B0, 0x0)		 = 0 0
69149/0x10d80b2:  vfork()		 = 69149 0
69149/0x10d80b2:  sigprocmask(0x3, 0x110248EAC, 0x0)		 = 0x0 0
69149/0x10d80b2:  dup2(0x3, 0x0, 0x0)		 = 0 0
69149/0x10d80b2:  close(0x3)		 = 0 0
69149/0x10d80b2:  close(0x4)		 = 0 0
69149/0x10d80b2:  dup2(0x6, 0x1, 0x0)		 = 1 0
69149/0x10d80b2:  close(0x6)		 = 0 0
69149/0x10d80b2:  close(0x5)		 = 0 0
69149/0x10d80b2:  dup2(0x8, 0x2, 0x0)		 = 2 0
69149/0x10d80b2:  close(0x8)		 = 0 0
69149/0x10d80b2:  close(0x7)		 = 0 0
69117/0x10d80b2:  execve("/usr/bin/gcc\0", 0x113F943E0, 0x7FFF6DDC35C0)		 = 69149 0
69117/0x10d80b2:  close(0x3)		 = 0 0
69117/0x10d80b2:  fcntl(0x4, 0x2, 0x1)		 = 0 0
69117/0x10d80b2:  close(0x6)		 = 0 0
69117/0x10d80b2:  fcntl(0x5, 0x2, 0x1)		 = 0 0
69117/0x10d80b2:  close(0x8)		 = 0 0
69117/0x10d80b2:  fcntl(0x7, 0x2, 0x1)		 = 0 0
69117/0x10d80b2:  sigprocmask(0x3, 0x110248EAC, 0x0)		 = 0x0 0
69117/0x10d80b2:  setitimer(0x0, 0x7FFF6DDBF1B0, 0x0)		 = 0 0
69117/0x10d80b2:  fcntl(0x4, 0x3, 0x11E00A40)		 = 1 0
69117/0x10d80b2:  fcntl(0x4, 0x4, 0x5)		 = 0 0
69117/0x10d80b2:  ioctl(0x4, 0x4004667A, 0x7Fdtrace: error on enabled probe ID 1791 (ID 116: syscall::read:return): out of scratch space in action #13 at DIF offset 44
dtrace: error on enabled probe ID 1791 (ID 116: syscall::read:return): out of scratch space in action #13 at DIF offset 44
FF6DDBF294)		 = -1 Err#25
69117/0x10d80b2:  ioctl(0x4, 0x40487413, 0x7FFF6DDBF248)		 = -1 Err#25
69117/0x10d80b2:  fcntl(0x5, 0x3, 0x11E00A40)		 = 0 0
69117/0x10d80b2:  fcntl(0x5, 0x4, 0x4)		 = 0 0
69117/0x10d80b2:  ioctl(0x5, 0x4004667A, 0x7FFF6DDBF294)		 = -1 Err#25
69117/0x10d80b2:  ioctl(0x5, 0x40487413, 0x7FFF6DDBF248)		 = -1 Err#25
69117/0x10d80b2:  fcntl(0x7, 0x3, 0x11E00A40)		 = 0 0
69117/0x10d80b2:  fcntl(0x7, 0x4, 0x4)		 = 0 0
69117/0x10d80b2:  ioctl(0x7, 0x4004667A, 0x7FFF6DDBF294)		 = -1 Err#25
69117/0x10d80b2:  ioctl(0x7, 0x40487413, 0x7FFF6DDBF248)		 = -1 Err#25
69117/0x10d80b2:  ioctl(0x5, 0x4004667A, 0x7FFF6DDBF294)		 = -1 Err#25
69117/0x10d80b2:  ioctl(0x5, 0x40487413, 0x7FFF6DDBF248)		 = -1 Err#25
69117/0x10d80b2:  ioctl(0x7, 0x4004667A, 0x7FFF6DDBF294)		 = -1 Err#25
69117/0x10d80b2:  ioctl(0x7, 0x40487413, 0x7FFF6DDBF248)		 = -1 Err#25
69117/0x10d80b2:  wait4(0x10E1D, 0x7FFF6DDBF28C, 0x1)		 = 0 0
69117/0x10d80b2:  select(0x6, 0x7FFF6DDC3220, 0x7FFF6DDC31A0, 0x0, 0x7FFF6DDC32A0)		 = 0 0
69117/0x10d80b2:  setitimer(0x0, 0x7FFF6DDC3140, 0x0)		 = 0 0