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-rw-r--r--ghc/docs/users_guide/prof-compiler-options.lit6
1 files changed, 6 insertions, 0 deletions
diff --git a/ghc/docs/users_guide/prof-compiler-options.lit b/ghc/docs/users_guide/prof-compiler-options.lit
index 21d8ca6965..0f870b431f 100644
--- a/ghc/docs/users_guide/prof-compiler-options.lit
+++ b/ghc/docs/users_guide/prof-compiler-options.lit
@@ -53,6 +53,12 @@ declared in the module. If no group is specified it defaults to the
module name.
\end{description}
+In addition to the \tr{-prof} option your system might be setup to
+enable you to compile and link with the \tr{-prof-details}
+\index{\tr{-prof-details option}} option instead. This enables
+additional detailed counts to be reported with the \tr{-P} RTS option.
+%-prof-details should also enable age profiling if we get it going again ...
+
%Alternative profiling semantics have also been implemented. To use
%these the runtime system and prelude libraries must have been built
%for the alternative profiling setup. This is done using a particular