Make can't capture shell output in a variable

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1 total messages Started by Stephen Gildea Tue, 12 Sep 1989 19:32

#418

Author: Stephen Gildea
Date: Tue, 12 Sep 1989 19:32

18 lines
941 bytes

In Make 3.55, I can't find a feature similar to the shell backquote:
the ability to set a Make variable to the output of a shell command.

SunOS 4.0 Make has the feature I want.  You can set a variable with :sh=
instead of = and it will take the value to be a shell command.

For a sample use, consider this piece of a Makefile.  /bin/arch is a
program that prints what you're running on: "sun3", "sun4", etc.

ARCH:sh=/bin/arch

LIBDIR=lib/$(ARCH)

myprog: $(OBJS)
	$(CC) $(CFLAGS) -o $@ $(OBJS) -L$(LIBDIR) $(LIBS)


 < Stephen

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