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Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

Comments in a Makefile

Precede a comment with a number sign (#). NMAKE ignores text from the number sign to the next newline character. Examples:

# Comment on line by itself
OPTIONS = /MAP  # Comment on macro definition line

all.exe : one.obj two.obj  # Comment on dependency line
    link one.obj two.obj
# Comment in commands block
#   copy *.obj \objects  # Command turned into comment
    copy one.exe \release

.obj.exe:  # Comment on inference rule line
    link $<

my.exe : my.obj ; link my.obj  # Err: cannot comment this
 # Error: # must be the first character
.obj.exe: ; link $<  # Error: cannot comment this

To specify a literal number sign, precede it with a caret (^), as follows:

DEF = ^#define  #Macro for a C preprocessing directive

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