Makefile BSD

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Overview

BSD makefile 내용 정리.

Conditional Statements(#if, #ifndef etc..)

.if $(VER) >= 2.4
  TAG = 2.4_current
.elif $(VER) == 2.3
  TAG = 2.3_release
.else
  TAG = 2.4_stable
.endif

exists(<arg>)

해당 인자값(arg)이 존재하는지 여부를 리턴한다. 존재할 경우 1, 아니면 0을 리턴한다. 보통 .if 구문과 같이 쓰인다.

clean:
    -rm -f *.o *.core
.if exists(tmp)
    -rm tmp/*.o
.endif

See also

https://wiki.netbsd.org/bsd_make/ - BSD make
http://www.khmere.com/freebsd_book/html/ch01.html - FreeBSD System Programming Chapter 1

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