Re: AC_CHECK_HEADERS, preprocessor call and Solaris

[Rainer Gerhards]

sorry for the noise, I should have set CPPFLAGS...

Rainer

On Mon, Apr 10, 2017 at 12:04 PM, Rainer Gerhards <address@hidden> wrote:
> Hi all,
>
> I am porting my rsyslog project to the Solaris Sunstudio compiler (no
> fun, I know...).
>
> I have a problem with AC_CHECK_HEADERS. When it calls the
> preprocessor, it ignores CFLAGS. However, the Sunstudio compiler needs
> -std=c99 even when the preprocessor is called and if it is missing,
> things do not work out.
>
> I know I can use the optional forth argument to skip the preprocessor
> call, but this does not sound like a really clean solution (more kind
> of a work-around). I am searching for a way to make autoconf call the
> preprocessor with a set of flags I can specify. Is this possible?
>
> For your reference, here is a failed build:
>
> http://build.rsyslog.com:8010/builders/rsyslog%20solaris11x64%20rsyslog/builds/426/steps/shell_3/logs/config.log
>
> A problem line is
> ""/usr/include/sys/feature_tests.h", line 358: #error: "Compiler or
> options invalid; UNIX 03 and POSIX.1-2001 applications require the use
> of c99""
>
> Searching for "Compiler or options invalid" brings up the details.
> There are multiple instances.
>
> TIA,
> Rainer