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Re: Messed up gl_COMPILER_PREPARE_CHECK_DECL


From: Mats Erik Andersson
Subject: Re: Messed up gl_COMPILER_PREPARE_CHECK_DECL
Date: Sat, 18 Jan 2020 23:02:42 +0100
User-agent: Mutt/1.5.23 (2014-03-12)

Dear Bruno,

Lördag den 18:e january 2020, klockan 19:11, skrev Bruno Haible detta:
> 
> The cause of the failure is that inetutils/configure.ac invokes
> AC_ISC_POSIX before AC_PROG_CC. But AC_ISC_POSIX is documented to expand
> into an invocation of AC_SEARCH_LIBS; therefore it requires to run the C
> compiler. It therefore does not really make sense to invoke AC_ISC_POSIX
> before AC_PROG_CC. You were just lucky that it worked before.

The new patch in itself makes the bootrapping successful without further
changes to configure.ac of Inetutils. That being said, I inserted the macro
AC_PROG_EGREP as recently as January 11th. And immediately it discloses
my ignorance of many details, sigh!

In contrast, our AC_ISC_POSIX sits fixed since 2005, but does not interfere
visibly (beyond the error log copied last time) with the advent of your most
recent change. Nonetheless, I will move it to a position where other
libraries are probed. Thank you for your most illuminating comments!

Regards,

   Mats E A



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