new C preprocessor breaks ghc's build process
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.
Trac metadata
Trac field |
Value |
Version |
None |
Type |
Bug |
TypeOfFailure |
OtherFailure |
Priority |
normal |
Resolution |
ResolvedFixed |
Component |
libraries/base |
Test case |
|
Differential revisions |
|
BlockedBy |
|
Related |
|
Blocking |
|
CC |
|
Operating system |
|
Architecture |
|