diff options
Diffstat (limited to 'doc/make.texi')
| -rw-r--r-- | doc/make.texi | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/doc/make.texi b/doc/make.texi index 31db623b..b3cc57a0 100644 --- a/doc/make.texi +++ b/doc/make.texi @@ -9313,6 +9313,12 @@ GNU Make can detect some types of incorrect usage in makefiles and show warnings about them. Currently these issues can be detected: @table @samp +@item invalid-var +Assigning to an invalid variable name (e.g., a name containing whitespace). + +@item invalid-ref +Using an invalid variable name in a variable reference. + @item undefined-var Referencing a variable that has not been defined. @end table @@ -9331,8 +9337,9 @@ Show a warning about the usage and continue processing the makefile. Show an error for the usage and immediately stop processing the makefile. @end table -The default action when no warning control options are provided for -@samp{undefined-var} is @samp{warn}. +The default action of GNU Make when no warning control options are provided +is @samp{ignore} for @samp{undefined-var}, and @samp{warn} for +@samp{invalid-var} and @samp{invalid-ref}. To modify this default behavior, you can use the @code{--warn} option. This option can be specified on the command line, or by adding it to the |