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| -rw-r--r-- | ghc/docs/users_guide/separate_compilation.xml | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/ghc/docs/users_guide/separate_compilation.xml b/ghc/docs/users_guide/separate_compilation.xml index cae8d352fc..97fe772b2c 100644 --- a/ghc/docs/users_guide/separate_compilation.xml +++ b/ghc/docs/users_guide/separate_compilation.xml @@ -922,6 +922,14 @@ M.o : X.hi-boot <command>ghc</command> traces the dependencies, just like <command>ghc --make</command> (a new feature in GHC 6.4).</para> + <para>Note that <literal>ghc -M</literal> needs to find a <emphasis>source + file</emphasis> for each module in the dependency graph, so that it can + parse the import declarations and follow dependencies. Any pre-compiled + modules without source files must therefore belong to a + package<footnote><para>This is a change in behaviour relative to 6.2 and + earlier.</para> + </footnote>.</para> + <para>By default, <command>ghc -M</command> generates all the dependencies, and then concatenates them onto the end of <filename>makefile</filename> (or |