Re: [bug-gnu-libiconv] MSVC: 'invalid numeric argument'/Wl, -DLL, -IMPLIB:.libs\charset.dll.lib''for builds on Windows

[Bruno Haible]

Hi Alexander,

> I meant not to drop 'compile' use from libiconv builds using ICC on Windows 
> and MSVC (that's nearly impossible). I meant left the task to enable 
> 'compile' use for libiconv builds using ICC on Windows and MSVC to Autotools 
> (particularly Automake) itself via '_AM_PROG_CC_C_O' subroutine call. This 
> already done in 'configure' script, but not 'libcharset/configure' and 
> 'preload/configure' scripts.

The use of _AM_PROG_CC_C_O in the main 'configure' script
must be an unintended side-effect of using gnulib, I guess.

It does not make sense to invoke _AM_PROG_CC_C_O explicitly in
a configure.ac because
  * _AM_PROG_CC_C_O is not a documented Automake macro,
  * AM_PROG_CC_C_O is marked as obsolete in the documentation [1],
  * The README.windows states that special values need to be set for
    CC, CFLAGS, CXX, CXXFLAGS, CPPFLAGS, LD, NM, STRIP, AR, RANLIB,
    and AM_PROG_CC_C_O only helps for the value of CC.

> You misunderstood.

Indeed. Next time, please for a long mail, add a summary within the first
five lines of the mail; then I won't misunderstand :-)

Bruno

[1] https://www.gnu.org/software/automake/manual/html_node/Public-Macros.html