[MacPorts] #16133: Fix for XeTeX Leopard Build Failure

[MacPorts]

#16133: Fix for XeTeX Leopard Build Failure
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 Reporter:  kthenriksson at gmail.com  |       Owner:  macports-tickets at lists.macosforge.org
     Type:  defect                  |      Status:  new                                  
 Priority:  Normal                  |   Milestone:                                       
Component:  ports                   |     Version:  1.6.0                                
 Keywords:  texlive xetex           |  
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 Right now, XeTeX will not build on Leopard, and even if it did, two of its
 files to install conflict with files in texlive_base. Because it wouldn't
 compile in Leopard, it was removed from texlive_base in changeset [31087],
 but there I can't seem to find any tickets about this particular issue.
 Ticket #11388 seems to be similar, especially in the suggested fix, but
 does not show the same build error.

 The following patch applied to 'libs/icu-xetex/config/mh-darwin' in the
 texlive_base or xetex packages corrects this error and allows the build to
 complete successfully:


 {{{
 --- mh-darwin.orig      2008-07-29 21:55:37.000000000 -0700
 +++ mh-darwin   2008-07-29 21:56:16.000000000 -0700
 @@ -58,7 +58,7 @@
         @echo "generating dependency information for $<"
         @$(GEN_DEPS.c) $< > /dev/null
         @mv $@ $@~
 -       @echo -n "$@ " > $@
 +       @/bin/echo -n "$@ " > $@
         @cat < $@~ >> $@
         @-rm $@~

 @@ -66,7 +66,7 @@
         @echo "generating dependency information for $<"
         @$(GEN_DEPS.cc) $< >/dev/null
         @mv $@ $@~
 -       @echo -n "$@ " > $@
 +       @/bin/echo -n "$@ " > $@
         @cat < $@~ >> $@
         @-rm $@~
 }}}

 The problem that occurs is that make uses sh to invoke commands in a
 Makefile, but perhaps from the bash configure option `--enable-strict-
 posix-default`, the bash shell option `xpg_echo` defaults to on. Because
 sh was compiled to default to POSIX mode, this means that `echo` no longer
 recognizes any options and prints all arguments verbatim (except for
 backslash escape expansion, see
 http://www.gnu.org/software/bash/manual/bashref.html and search for
 `xpg_echo` for details).

 So the Makefile that wants `echo -n` to mean no new line actually gets it
 to mean print a `-n` literally, which ends up ruining another Makefile
 called stubdata.d and prevents successful compilation. As you can see from
 the patch, the fix is to invoke the actual `echo` program instead of the
 shell builtin called `echo`, which is accomplished here by using the full
 path to `echo`.

 The patch should be applied to both the texlive_base and xetex file trees
 and the texlive_base Portfile can hopefully be updated to reenable
 compilation of xetex. I believe that the xetex package can actually be
 removed as well once xetex has be reenabled in texlive_base.

 Due to a file conflict that the inclusion of xetex brings, texlive_texmf-
 full needs the line "delete ${worksrcpath}/texmf/web2c/xetex.pool" in the
 build section.

 One other change is that texlive will need the line "ln -s
 ${prefix}/bin/xetex ${destroot}${prefix}/bin/xelatex" added to the
 destroot section to give the correct xelatex symbolic link.

-- 
Ticket URL: <http://trac.macports.org/ticket/16133>
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