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| -rw-r--r-- | gcc/doc/invoke.texi | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 054b837..8766bcd 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -32891,6 +32891,13 @@ the purview of a named module. This is not implemented. Such declarations will be attached to the module, if any, in which they are declared. +@item Standard Library Header Units +The Standard Library is not provided as importable header units. If +you want to import such units, you must explicitly build them first. +If you do not do this with care, you may have multiple declarations, +which the module machinery must merge---compiler resource usage can be +affected by how you partition header files into header units. + @end table Modular compilation is @emph{not} enabled with just the |