Deal List,
today I found an interesting behavior of autoconf, but I don't know
how to find the documentation for it. Does anybody have a link or hint
how smth like this is called? e.g. How can I switch on/off this?
Here is the code:
[configure.ac]
if test x$build_newrenderer = xtrue ; then
AC_DEFINE_UNQUOTED([COMPILE_NEWRENDERER_RENDERER],
[${build_newrenderer}], [Whether compiled with NEWRENDERER])
fi
=> config.h
/* Whether compiled with NEWRENDERER */
/* #undef COMPILE_NEWRENDERER_RENDERER */ dnl ############# <-- here
dnl if test x$build_newrenderer = xtrue ; then
AC_DEFINE_UNQUOTED([COMPILE_NEWRENDERER_RENDERER],
[${build_newrenderer}], [Whether compiled with NEWRENDERER])
dnl fi
=> config.h
/* Whether compiled with NEWRENDERER */
#define COMPILE_NEWRENDERER_RENDERER false dnl ############# <-- here
Is it really the if-statement what generates the distinct output in
config.h? Once the variable is #defined with "false" and once its not
defined. Why?
Second I would like to know how the naming conventions are. Does most
of the people follow the naming-convention "HAVE_VAR_NAME" for
config.h?.
Thanks a lot (!) in advance.
Many greets,
Lukas
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