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Top Forums Shell Programming and Scripting How to check for null value from makefile Post 302297156 by jake_ryan on Thursday 12th of March 2009 04:07:40 PM
Old 03-12-2009
After trying couple of things, this is my problem:

set -x; \
ARESULT=`../${TOOLS_ROOT_PATH}/ext_tools.sh 1`; \
echo $ARESULT; \

When I do gmake, I see the following:
+ .././makefiles/tools/ext_tools.sh 1
ARESULT=test_tool1
testing_file2
testing_file3
+ echo RESULT
RESULT

The reason why I was saving it to a variable is to check if it is null or not. But I am clueless how to dereference the variable $ARESULT.
 

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PERLCE(1)						 Perl Programmers Reference Guide						 PERLCE(1)

Name
       Perl for WinCE

Description
       This file gives the instructions for building Perl5.6 and above for WinCE.  Please read and understand the terms under which this software
       is distributed.

Build
       This section describes the steps to be performed to build PerlCE.

       Tools & SDK

       For compiling, you need Microsoft Embedded Visual Tools, my celib-sources, my console-sources and a perl for win32.

       Needed source files can be downloaded via: www.rainer-keuchel.de/wince/dirlist.html

       Some portions of the makefile need a shell for win32, rm, cp, mv, xmkdir (mkdir with a -p option).  It also uses my cecopy program for
       copying files to the ce device.

       Make

       Miniperl is not built. A pre-existent win32 perl is used.

       The paths for tools and additional libraries have to be changed in wince/makefile.ce.

       Different ce targets can be specified with the TARGET macro.

       Before you start, you need to build celib.dll and w32console.  See instructions in these packages for building.

       In the wince directory, type "nmake -f makefile.ce". This should build perl.exe and perl.dll. For building extension dlls, type "nmake -f
       makefile.ce dlls"

       When building ext dlls, you get lots of macro redefinition errors. Just ignore them.

       For further information, look in the text files in the wince sub-directory.

Acknowledgements
       The port for Win32 was used as a reference.

Author
       Rainer Keuchel (keuchel@netwave.de)

perl v5.8.0							    2003-02-18								 PERLCE(1)
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