Re: What is the distinction between AC_PROG_CC_C_O and AC_PROG_CC ??

[Ralf Wildenhues]

* Bruce Korb wrote on Mon, Apr 30, 2007 at 12:04:53AM CEST:
> The index and search of the docs only yields this:
> 
> `AM_PROG_CC_C_O'
>      This is like `AC_PROG_CC_C_O', but it generates its results in the
>      manner required by automake.  You must use this instead of
>      `AC_PROG_CC_C_O' when you need this functionality, that is, when
>      using per-target flags or subdir-objects with C sources.

The above is from the Automake manual.  AC_PROG_CC_C_O is explained in
the Autoconf manual (the name prefix hints to where this macro comes
from):

| -- Macro: AC_PROG_CC_C_O
|     If the C compiler does not accept the `-c' and `-o' options
|     simultaneously, define `NO_MINUS_C_MINUS_O'.  This macro actually
|     tests both the compiler found by `AC_PROG_CC', and, if different,
|     the first `cc' in the path.  The test fails if one fails.  This
|     macro was created for GNU Make to choose the default C compilation
|     rule.

Hope that helps.

Cheers,
Ralf