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LD not precious?

From: Philip A. Prindeville
Subject: LD not precious?
Date: Wed, 13 Jan 2010 17:43:49 -0800
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.4pre) Gecko/20091112 Fedora/3.0-2.8.b4.fc11 Thunderbird/3.0b4 
Hi,

Silly question, but I was working on a particular project (dahdi-tools) and I 
noticed that the value of LD that was passed to "configure" didn't get saved 
into "makeopts".

I hacked the configure.ac file as:

--- dahdi-tools-2.2.0/configure.ac.orig 2009-01-16 06:18:10.000000000 -0800
+++ dahdi-tools-2.2.0/configure.ac      2010-01-13 17:16:00.000000000 -0800
@@ -29,6 +29,8 @@ fi
 # This needs to be before any macros that use the C compiler
 AC_GNU_SOURCE
 
+AC_SUBST(LD)
+
 # Checks for programs.
 AC_PROG_CC
 AC_PROG_CPP



and this seems to work, but this left me wondering why "LD" isn't a precious 
variable, just like "CC" is.

Looking at the contents of /usr/share/autoconf/autoconf/ for autoconf 2.63, I'm 
not seeing \<LD\> anywhere.

Is that an oversight? I ask because in a cross-compilation environment, getting 
CC and LD right are equally important.

Thanks,

-Philip
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