[Guy Harris <gharris@xxxxxxxxx>]

Liu Chunfang-CCL083 wrote:
> You need to change the Makefile under dir:/psc/proj/gsm/gprs/rlcmac/ethereal-0.10.6/ethereal/epan/dissectors. Find the line 987, in the next line, there are two lines including sign ":=". Just change ":=" to "=", then you can biuld. I've tried. It worked fine.
>
> Chunfang
>
> -----Original Message-----
> From: ethereal-users-bounces@xxxxxxxxxxxx [mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of harsha ss
> Sent: Thursday, October 21, 2004 8:40 AM
> To: ethereal-users@xxxxxxxxxxxx
> Subject: [Ethereal-users] Problem in installing ethereal
>
>
>   
> Hi,
>  I am trying to install ethereal on solaris machine.
>   The versioon of ethereal i am trying to install is ethereal-0.10.6
>    Configure is working fine.I am getting the problem in make.This is the message i am getting when i run make.Please help me if anybody knows this problem.
>
> /cadappl/bin/perl ./make-version.pl
> This is not a SVN build.
> svnversion.h is up-to-date.
> make  all-recursive
> Making all in tools
> Making all in lemon
> Making all in wiretap
> make  all-am
> Making all in doc
> Making all in epan
> Making all in ftypes
> Making all in dfilter
> Making all in dissectors
> make: Fatal error in reader: Makefile, line 987: Unexpected end of line seen Current working directory /psc/proj/gsm/gprs/rlcmac/ethereal-0.10.6/ethereal/epan/dissectors
> *** Error code 1
> make: Fatal error: Command failed for target `all-recursive' Current working directory /psc/proj/gsm/gprs/rlcmac/ethereal-0.10.6/ethereal/epan
> *** Error code 1
> make: Fatal error: Command failed for target `all-recursive' Current working directory /psc/proj/gsm/gprs/rlcmac/ethereal-0.10.6/ethereal
> *** Error code 1
> make: Fatal error: Command failed for target `all'

So why are we using := rather than = in

	#
	# Build various header files for the X11 dissector.
	#
	PROC_X11_FIELDS := $(srcdir)/process-x11-fields.pl
	X11_FIELDS := $(srcdir)/x11-fields

According to the SunOS 5.6 man page (at least as shown on the FreeBSD 
Web site), := is used in "conditional macro definitions":

Conditional Macro Definitions
 A macro definition of the form:

     target-list := macro = value

 indicates that when processing any of  the  targets  listed  and  their
 dependencies, macro is to be set to the value supplied.  Note that if a
 conditional macro is referred to in a dependency list, the  $  must  be
 delayed  (use  $$ instead).  Also, target-list may contain a % pattern,
 in which case the macro will be conditionally defined for  all  targets
 encountered  that  match  the pattern.  A pattern replacement reference
 can be used within the value.

whereas the GNU Make manual says it sets a "siimply expanded variable":

Simply expanded variables are defined by lines using `:=' (see section
Setting Variables). The value of a simply expanded variable is scanned 
   once and for all, expanding any references to other variables and 
functions, when the variable is defined. The actual value of the simply 
expanded variable is the result of expanding the text that you write. It 
does not contain any references to other variables; it contains their 
values as of the time this variable was defined. Therefore,

 x := foo
 y := $(x) bar
 x := later

is equivalent to

 y := foo bar
 x := later


When a simply expanded variable is referenced, its value is substituted 
verbatim.

Given that := isn't a standard make feature (and means different things 
in different versions of make), we should avoid it - the version of 
Makefile.in distributed in the source tarballs should *NOT* require GNU 
make (automake attempts *NOT* to require GNU make in the version of 
Makefile.in generated by "make dist", even though you *do* need GNU make 
for the Makefile.in generated if you're building from SVN).