diff options
| author | simonmar <unknown> | 2004-01-09 12:45:46 +0000 |
|---|---|---|
| committer | simonmar <unknown> | 2004-01-09 12:45:46 +0000 |
| commit | 8dfc491f900907ea236c627745fe90b72a9aa56b (patch) | |
| tree | 2be241044d3374416787c42b10a720811ccaa2c2 /doc/haddock.sgml | |
| parent | cdb697bffbae507d8b465817ac4c380e5f0147b8 (diff) | |
[haddock @ 2004-01-09 12:45:46 by simonmar]
Add -optP-P to example ghc command line.
Diffstat (limited to 'doc/haddock.sgml')
| -rw-r--r-- | doc/haddock.sgml | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/doc/haddock.sgml b/doc/haddock.sgml index 1539126b..72446566 100644 --- a/doc/haddock.sgml +++ b/doc/haddock.sgml @@ -550,16 +550,19 @@ which we also need to run the C pre-processor:</para> <screen> -$ ghc -cpp -E -D__HADDOCK__ Foo.lhs -o Foo.hs +$ ghc -cpp -E -optP-P -D__HADDOCK__ Foo.lhs -o Foo.hs $ haddock -h Foo.hs ... </screen> <para>The <option>-E</option> option to GHC says "stop after - pre-processing", the <option>-cpp</option> turns on the C - pre-processor, and the <option>-D__HADDOCK__</option> option + pre-processing", the <option>-cpp</option> option turns on the C + pre-processor, the <option>-optP-P</option> option tells the C + pre-processor not to leave any extra dropping behind (see the + description of the <option>-P</option> option in the gcc manual + for details), and the <option>-D__HADDOCK__</option> option defines the symbol <literal>__HADDOCK__</literal> when - pre-processing (this is sometimes handy if you need to - any pre-processing conditionals in your source which depend on + pre-processing (this is sometimes handy if you need to any + pre-processing conditionals in your source which depend on whether the source is going to be fed to Haddock).</para> </section> |