Opened 11 years ago

Closed 11 years ago

Last modified 46 years ago

#248 closed bug (Fixed)

new C preprocessor breaks ghc's build process

Reported by: nobody Owned by: nobody
Priority: normal Milestone:
Component: libraries/base Version: None
Keywords: Cc:
Operating System: Architecture:
Type of failure: Test Case:
Blocked By: Blocking:
Related Tickets: Differential Revisions:

Description

bash-2.03$ cat old
infix 5 \\

bash-2.03$ cat -vet old
infix 5 \\ $
$
bash-2.03$ cat new
infix 5 \\ --

bash-2.03$ cpp-2.95 old
# 1 "old"
infix 5 \\

bash-2.03$ cpp-2.95 new
# 1 "new"
infix 5 \\ --

bash-2.03$ cpp-3.4.1 old
# 1 "old"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "old"
old:1:10: warning: backslash and newline separated by
space
infix 5 \
bash-2.03$ cpp-3.4.1 new
# 1 "new"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "new"
infix 5 \\ --
bash-2.03$

The new behavior is documented in cpp.info of the
gcc-3.4.1 distribution.
Line 212 of ghc-6.2.1/libraries/base/Data/List.hs
expects the old behavior.

Change History (1)

comment:1 Changed 11 years ago by simonmar

  • Status changed from assigned to closed
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Coincidentally (or not?) I just fixed this today.
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