Bootstrapping for Leopard

Philip K.F. Hölzenspies p.k.f.holzenspies at
Tue Jan 22 03:29:13 EST 2008

 Dear All,

I'm trying toupdate the Portfile so that ghc-6.8.2 can be built using MacPorts 
(handy for installing other ghc-dependent material from MacPorts like 
gtk2hs). The problem seems to be that the available bootstrap binary 
causes a segfault on Leopard (below are the steps I took in my attempt to 
build ghc with this bootstrap binary).

Using Manuel Chakravarty's binary distribution of ghc-6.8.1-i386-apple-darwin 
building ghc-6.8.2 works fine. It seemed to me that the easiest way to fix 
the bootstrap problem is to boot from C as described on the wiki 
( Two things were 
wrong, however.

make hc-file-bundle

Making the hc-file-bundle target failed, because not all rts/*.cmm had 
rts/*.hc counterparts after the build. The make fails because of this 
fragment from the Makefile (part of the hc-file-bundle target, starting from 
line 513):

for f in `$(FIND) ghc-$(ProjectVersion)/compiler 
ghc-$(ProjectVersion)/rts -name "*.cmm" -follow -print` ""; do \
  if test "x$$f" !=3D "x"; then \
    echo `echo "$$f" | sed 's/cmm$$/hc/g' ` >> hc-files-to-go ; \
  fi; \

This adds some non-existing .hc files to the hc-files-to-go list that tar will 
not find, later on, causing an error. I just added a test to see whether the 
file exists. If it does not, I call make for that .hc file explicitly, which 
solves the problem for most files. The files that don't have a make target, I 
simply omitted from the hc-files-to-go. I haven't been able to test the 
severity of this, because of the second problem.

sh -e ./distrib/hc-build --prefix=3D$HOME/src/testbuild [--enable-hc-boot 

As a minor bug wrt. the wiki page, the hc-build is not executable by default. 
The more serious problem seems to be that the cold-boot option of configure 
is broken, because it ends in the error:

checking for ld... /usr/bin/ld
checking for path to top of build tree... ./configure: line 2651: -v0: command 
not found
./configure: line 2655: utils/pwd/pwd: No such file or directory
configure: error: cannot determine current directory

Upon inspection of the configure script, I found out that line 2651 uses the 
variable designating the ghc compiler.

Are these bugs or am I messing things up?


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