I have found:

http://rpmfind.net/linux/RPM/centos/5.9/x86_64/CentOS/autoconf213-2.13-12.1.noarch.html

and installed the rpm from the above URL.  This provided autoconf123.

The present complaint is:

Creating Python environment
Python 2.7 or greater (but not Python 3) is required to build. You are 
running Python 2.6.
*** Fix above errors and then restart with               "make -f 
client.mk build"

I will start the merry chase again -- does anyone have a valid Python 
for the above?

Yasha Karant

On 10/09/2013 04:06 PM, Clint Bowman wrote:
> I seem to have autoconf 2.63.  Apparently the configure for bluegriffon
> isn't looking for newer versions.
>
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> On Wed, 9 Oct 2013, Yasha Karant wrote:
>
>> I have attempted to build blue griffon following the instructions:
>>
>> URL:
>>
>> http://bluegriffon.org/pages/Build-BlueGriffon
>>
>> Build BlueGriffon
>>
>>    Make sure to install the mozilla build environment for your
>> platform: windows, Mac OS X, linux. You will also need to install
>> subversion. BlueGriffon is based on mozilla-central.
>>    create a new directory for BlueGriffon's and XULrunner's sources
>>    get mozilla-central from Mozilla through Mercurial
>>
>>    hg clone http://hg.mozilla.org/mozilla-central mozilla-2.0
>>
>>    get BlueGriffon's tree through subversion:
>>
>>    cd mozilla-2.0
>>    svn checkout
>> http://sources.disruptive-innovations.com/bluegriffon/trunk bluegriffon
>>
>>    get BlueGriffon locales through subversion:
>>
>>    cd bluegriffon
>>    svn checkout
>> http://sources.disruptive-innovations.com/bluegriffon-l10n/trunk locales
>>
>>    tweak variable  _AVAILABLE_LOCALES in file
>> bluegriffon/langpacks/Makefile.in according to your wishes ; en-US is
>> always built, this is for the extra locales
>>    use the right revision of Gecko and apply the patch to the trunk
>>
>>    cd mozilla-2.0
>>    hg update -r `cat bluegriffon/config/mozilla_central_revision.txt`
>>    patch -p 1 < bluegriffon/config/content.patch
>>
>>    create a .mozconfig file. I am using myself the following settings
>> for my daily work on OS X (Mountain Lion):
>>
>>    CC=/opt/local/libexec/llvm-3.1/bin/clang
>>    CXX=/opt/local/libexec/llvm-3.1/bin/clang++
>>
>>    ##############################
>>    # Assuming you want a universal build
>>    ##############################
>>    . $topsrcdir/build/macosx/universal/mozconfig
>>
>>    ac_add_options
>> --with-macos-sdk=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk
>>
>>    ac_add_options --enable-macos-target=10.7
>>
>>    ##############################
>>    # tweak the following line according to your wishes
>>    # warning, the directory must exist in the filesystem
>>    ##############################
>>    mk_add_options MOZ_OBJDIR=/Users/glazou/bin/opt/bluegriffon
>>
>>    mk_add_options AUTOCONF=/opt/local/bin/autoconf213
>>
>>    ##############################
>>    # tweak the following according to your wishes
>>    ##############################
>>    ac_add_options --disable-debug
>>    ac_add_options --enable-optimize
>>    ac_add_options --enable-strip
>>
>>    ac_add_options --without-ccache
>>
>>    ##############################
>>    # build mar                  #
>>    ##############################
>>    ac_add_options --enable-installer
>>
>>    ##############################
>>    # I build on a 8-cpu machine ; comment out or adapt to your own case
>>    ##############################
>>    mk_add_options MOZ_MAKE_FLAGS="-j8"
>>
>>    ##############################
>>    # DO NOT MODIFY BELOW THIS LINE
>>    ##############################
>>    ac_add_options --enable-application=bluegriffon
>>    mk_add_options MOZ_TOOLKIT_SEARCH=
>>
>>    mk_add_options MOZ_OMNIJAR=
>>
>>    ac_add_options --disable-javaxpcom
>>    ac_add_options --disable-activex
>>    ac_add_options --disable-activex-scripting
>>    ac_add_options --disable-tests
>>    ac_add_options --disable-airbag
>>    ac_add_options --enable-places
>>    ac_add_options --enable-storage
>>    ac_add_options --disable-crashreporter
>>    ac_add_options --enable-webm
>>
>>    ac_add_options --disable-vista-sdk-requirements
>>
>>    ac_add_options --disable-dbm
>>    ac_add_options --disable-webrtc
>>
>>    type make -f client.mk build_all
>>    bluegriffon.exe is in $MOZ_OBJDIR/dist/bin on windows/linux and
>> BlueGriffon.app is in $MOZ_OBJDIR/dist on Mac (launch with open
>> BlueGriffon.app)
>>
>> Published on Thursday, June 17 2010 by BlueGriffon
>>
>> End instructions.  I modifed the above in what seems to be the correct
>> fashion for SL6x, loaded mercurial from an SL6x repository, etc., and
>> have the following failure:
>>
>> /oldhome1/ykarant/bluegriffon-build/mozilla-2.0/client.mk:278: ***
>> Could not find autoconf 2.13.  Stop.
>>
>> Note that autoconf from the SL6x repository is loaded.  Suggestions?
>>
>> Yasha Karant
>>