# ctags-lang-make

Random notes about tagging Make source code with Universal Ctags

Version:

  6.2.1

Manual group:

  Universal Ctags

Manual section:

  7

## SYNOPSIS

ctags … --languages=+Make …
ctags … --language-force=Make …
ctags … --map-Make=+([Mm]akefile) --map-Make=+(GNUmakefile) …
ctags … --map-Make=+.mak --map-Make=+.mk …

## DESCRIPTION

This parser extracts macro and target definitions. It also extracts included files as references.

### Examples

“input.mak”

    -include base.mak

    SRC = hello.c

    all: hello
    hello: hello.o
    hello.o: hello.c
    $(CC) -c $(CFLAGS) $(CPPFLAGS) $<

“output.tags” with “--options=NONE --extras=+r --fields=+KlrE -o - input.mak”

    SRC  input.mak       /^SRC = hello.c$/;"     macro   language:Make   roles:def
    all  input.mak       /^all: hello$/;"        target  language:Make   roles:def
    base.mak     input.mak       /^-include base.mak$/;" makefile        language:Make   roles:optional  extras:reference
    hello        input.mak       /^hello: hello.o$/;"    target  language:Make   roles:def
    hello.o      input.mak       /^hello.o: hello.c$/;"  target  language:Make   roles:def

## EXTRACTING CPP MACRO DEFINTIONS DEFINED WITH -DFOO

With `-D` option in a C compiler like gcc, a programmer can define a macro outside C source files. The options appears on a Makefile frequently. For an example:

    CPPFLAGS = -DDEBUG

The Make parser has heuristics [DINMAKE] for extracting the macros defined with the option. With enabling `CppDef` extra, you can turn on the heuristics.

### Examples

“input.mak”

    -include base.mak

    CFLAGS = -g -O2
    CPPFLAGS = -DOUTPUT=stdout
    SRC = hello.c

    all: hello
    hello: hello.o
    hello.o: hello.c
    $(CC) -c $(CFLAGS) $(CPPFLAGS) $<

“output.tags” with “--options=NONE --extras-Make=+{CppDef} --fields=+KlE -o - input.mak”

    CFLAGS       input.mak       /^CFLAGS = -g -O2$/;"   macro   language:Make
    CPPFLAGS     input.mak       /^CPPFLAGS = -DOUTPUT=stdout$/;"        macro   language:Make
    OUTPUT       input.mak       /^CPPFLAGS = -DOUTPUT=stdout$/;"        macro   language:CPreProcessor  extras:CppDef
    SRC  input.mak       /^SRC = hello.c$/;"     macro   language:Make
    all  input.mak       /^all: hello$/;"        target  language:Make
    hello        input.mak       /^hello: hello.o$/;"    target  language:Make
    hello.o      input.mak       /^hello.o: hello.c$/;"  target  language:Make

## VERSIONS

### Change since “0.0”

- New extra `CppDef` [DINMAKE]

## SEE ALSO

ctags(1)

[DINMAKE] (1,2)

CONFIG_X86_X32_ABI is not visible (defined in Makefile, not C or Kconfig) (https://github.com/bootlin/elixir/issues/221)