Problem with Libtool 2.2.x's AC_PROG_SED on Solaris

[Daniel Richard G.]

I am migrating a build process from Libtool 1.5.x to 2.2.6a. This build 
involves programs with many dependencies, such that very long 
compiler/linker invocations are the norm.

1.5.x worked correctly for this build on both Linux and Solaris. 2.2.6a 
works correctly on Linux, but fails on Solaris. Just prior to said failure, 
libtool gives three "Output line too long" warnings, and a linker 
invocation that is clearly truncated.

The problem is sed(1); more specifically, /usr/bin/sed. This is the program 
that AC_PROG_SED finds and returns for use in the libtool script. But this 
same program truncates its output, which makes it unsuitable for libtool.

1.5.x, on the other hand, used /usr/xpg4/bin/sed. This one does not 
truncate output. If I edit the 2.2.6a libtool script to use the XPG4 
version, the build completes without further trouble.

Between 1.5.x and 2.2.x, the behavior of AC_PROG_SED changed so that now, 
on Solaris, it chooses the broken version of sed(1).


P.S.: Please Cc: any replies to me, as I am not subscribed to this list.


--Daniel


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