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Re: insert macros within AC_PROG_CC before _AC_COMPILER_EXEEEXT

From: Eric Blake
Subject: Re: insert macros within AC_PROG_CC before _AC_COMPILER_EXEEEXT
Date: Tue, 07 Sep 2010 14:54:56 -0600
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On 09/07/2010 02:52 PM, Daily, Jeff A wrote:
FYI I'm using autoconf 2.67.

Here's why I need to insert macros into AC_PROG_CC:
I have some users who refuse to use anything but Intel's icc and ifort, version 8.1.  But, they have a newer 
GCC installed (4.1.2) which causes icc to barf with "invalid GNU version number: 412" (causing 
configure to report "C compiler cannot create executables").  The problem can be worked-around if 
they add CFLAGS="-gcc-version-340".  But these users want me to add this flag conditionally during 
configure.  But how?

Your configure file should NOT have to do this. If the user has a compiler that needs a particular CFLAGS set, then they should pass that particular CFLAGS as an argument to configure, or use the mechanism to automatically set up their environment with proper CFLAGS.

Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library

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