make

The version of make(1) provided with the Interix Software Development Kit (SDK) is based on the Berkeley Software Distribution (BSD) 4.4 make and supports all BSD features. It also conforms to POSIX.2.

Converting makefiles

You can convert existing makefiles to run under the Interix subsystem by changing macro definitions. You must edit the value of $(CFLAGS) to use only flags supported by cc(1) or c89(1).

POSIX-conformant makefiles

If your makefiles are required to be strictly POSIX-conformant, you must do the following:

• Include the target .POSIX before any other noncomment or nonblank lines in the makefile.
• Change your makefiles so that $(CC) is defined to be c89.
• Ensure that $(CFLAGS) contains only c89 flags.
• Avoid using any features of make not mentioned in the POSIX.2 standard.

Interix make provides the following extensions to POSIX.2:

• The special targets .BEGIN, .END, .INTERRUPT, .MAIN, .NOTMAIN, .MAKE, .MAKEFLAGS, .OPTIONAL, .PATH, and .USE.
• The special macros .TARGET, .OODATE, .PREFIX, .MEMBER, .IMPSRC, .ALLSRC, and .ARCHIVE.
• An include directive, .include, for including other files (the -I option specifies the directories to search for those other files).
• Conditionals such as .if, .ifdef, .ifmake, and so on. See the make reference page for more details on these extensions.

For more details on these extensions, see make(1).