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Homework and Emergencies Homework & Coursework Questions Create Makefile from source files Post 302954247 by Don Cragun on Saturday 5th of September 2015 08:38:06 PM
Old 09-05-2015
The following:
Code:
gq.o: gq.cc ac.h -I/assign1/includes bb.h	
	g++ -c gq.cc

says that the file gq.o needs to be brought up-to-date if any of the four files:
Code:
	gq.cc ac.h -I/assign1/includes bb.h

in the current working directory are newer than gq.o or if any of those files do not exist. Neither of the last two files in that list exist in the current directory, and you have not supplied any rules that tell make how to build those files. The third file in that list looks like it might be an option to gcc to tell it how to find bb.h while it is compiling gq.cc to build gq.o, but it does not tell make how to find bb.h. (But the pathname you specified for bb.h [/home/turing/z1755294/assign1/assign1/includes] does not seem to be what is specified by -I/asign1/includes.)

If you are sitting in the directory /home/turing/z1755294/assign1/assign1 when you run make and the files gq.cc and ac.h are in that directory, what pathnames (absolute or relative) can be used to enable make to find the file bb.h?
 

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XMKMF(1)						      General Commands Manual							  XMKMF(1)

NAME
xmkmf - create a Makefile from an Imakefile SYNOPSIS
xmkmf [ -a ] [ topdir [ curdir ] ] DESCRIPTION
The xmkmf command is the normal way to create a Makefile from an Imakefile shipped with third-party software. When invoked with no arguments in a directory containing an Imakefile, the imake program is run with arguments appropriate for your system (configured into xmkmf when X was built) and generates a Makefile. When invoked with the -a option, xmkmf builds the Makefile in the current directory, and then automatically executes ``make Makefiles'' (in case there are subdirectories), ``make includes'', and ``make depend'' for you. This is the normal way to configure software that is out- side the X Consortium build tree. If working inside the X Consortium build tree (unlikely unless you are an X developer, and even then this option is never really used), the topdir argument should be specified as the relative pathname from the current directory to the top of the build tree. Optionally, curdir may be specified as a relative pathname from the top of the build tree to the current directory. It is necessary to supply curdir if the current directory has subdirectories, or the Makefile will not be able to build the subdirectories. If a topdir is given, xmkmf assumes nothing is installed on your system and looks for files in the build tree instead of using the installed versions. SEE ALSO
imake(1) X Version 11 imake 1.0.2 XMKMF(1)
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