Re: Makefile translation from Solaris to Linux

[Paul D. Smith]

%% Robin Clark <address@hidden> writes:

  rc> SRCS.cpp: sh =if [ -f *.cpp ]; then ls *.cpp; fi

The way to run shell scripts in GNU make is by using the $(shell )
function:

  SRCS.cpp := $(shell if [ -f *.cpp ]; then ls *.cpp; fi)

However, as you point out the more efficient way to do this in GNU make
is using the $(wildcard) function.

  rc> I see in the manual that you can use the wildcard
  rc> function to obtain similar results.  If I use the
  rc> syntax

  rc> SRCS.cpp: $(wildcard *.cpp)

  rc> will I get the correct results?

No.  You are declaring a target SRCS.cpp above, which depends on all the
*.cpp files in the directory.

If you want to set a variable SRCS.cpp to contain a list of the *.cpp
files in the directory, use this:

  SRCS.cpp := $(wildcard *.cpp)

(note that := and = both assign variables: the former is more efficient
in these cases).

  rc> I am sorry to ask this question without trying it, but
  rc> I do not have access to the Linux machine presently.

GNU make is free software and you can easily run it on your Solaris
system as well.  You can download the source from
ftp://ftp.gnu.org/make/ and build it yourself, or you can get prebuilt
versions from places like http://sunfreeware.com/

No need to wait for a Linux box to use GNU make...

-- 
-------------------------------------------------------------------------------
 Paul D. Smith <address@hidden>          Find some GNU make tips at:
 http://www.gnu.org                      http://make.paulandlesley.org
 "Please remain calm...I may be mad, but I am a professional." --Mad Scientist