At Tuesday 25 May 2010, Alex Farber <alexf.aconf@xxxxxxxxx> wrote:
> ./configure WX_CPP="compiler flags..." WX_LIBS="linker flags..."
>
> This doesn't work, because AC_SUBST is done when configure script
> is generated, and not when it is executed.
No, this doesn't work because you are setting the WX_CPP and WX_LIBS
shell variables unconditionally.
> Is there some way to get it working?
I think that setting WX_CPP and WX_LIBS conditionally should be
enough; e.g., instead of this:
WX_CPP="`wx-config --cppflags`"
AC_SUBST(WX_CPP)
do this:
test x${WX_CPP+"set"} = x"set" || WX_CPP="`wx-config --cppflags`"
AC_SUBST(WX_CPP)
By the way, it would also be better to quote arguments of autoconf
macros consistently, i.e. using `AC_SUBST([WX_CPP])' instead of
`AC_SUBST(WX_CPP)': but this is ortoghonal to the issue we are
discussing.
HTH,
Stefano
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