nginx.git/auto/cc, branch release-1.2.7

Merge of r5012: configure: removed redundant variable assignment.

2013-02-11T15:28:50+00:00

Merge of r4763: added the Clang compiler support.

2012-08-06T17:10:35+00:00

The -Werror is commented out to not break builds on Linux.

Merge of r4760, r4761: -Wmissing-prototypes.

2012-08-06T17:07:28+00:00

Fixed compilation with -Wmissing-prototypes.  Added a commented
out -Wmissing-prototypes to CFLAGS.  It is commented out to not break
builds with 3rd party modules.

Merge of r4759, r4762, r4768: configure minor fixes.

2012-08-06T17:03:01+00:00

*) Replaced a number of "else if" with "elif".

*) Made sure to run configure in a "C" locale.  Otherwise, we may fail
   to properly detect a version of compiler.

*) Removed extraneous GCC warning flags.

Configure: moved icc detection before gcc.

2012-02-27T16:23:44+00:00

New versions of icc confuse auto/cc/name due to introduced handling
of a "icc -v":

$ icc -v
icc version 12.1.3 (gcc version 4.6.0 compatibility)
$ icc -V
Intel(R) C Compiler XE for applications running on IA-32, Version 12.1.3.293 Build 20120212
Copyright (C) 1985-2012 Intel Corporation.  All rights reserved.
FOR NON-COMMERCIAL USE ONLY

See report here:
http://mailman.nginx.org/pipermail/nginx/2012-February/032177.html

Copyright updated.

2012-01-18T15:07:43+00:00

Some questionable optomizations flags for icc were removed

2011-12-29T15:36:07+00:00

in order to simplify support of its future versions.

Fix of building by Microsoft Visual C++ 10 compiler.

2011-10-26T08:16:59+00:00

Lower optimization level for Sun Studio before 12.1.

2011-08-18T15:10:23+00:00

At least Sun Studio 12 has problems with bit-fields exposed by nginx code
(caught by test suite).  They seems to be fixed in Sun Studio 12.1.  As a
workaround use "-fast -xalias_level=any" for older versions, it resolves
the problem.

try to use C99 variadic macros first:

2010-07-05T13:02:25+00:00

AIX 5.3's XL C has problems with GCC style variadic macros