On Wednesday, August 04, 2010 01:36:34 Tao Wang wrote:
> I created 'src/foobar.h.in' with following content:
>
> =========
> #define PATH_PREFIX "@prefix@"
> #define PATH_DATADIR "@datadir@"
> =========
>
> And put 'src/foobar.h' in AC_CONFIG_FILES() in 'configure.ac'.
>
> After I run 'autoreconf', the 'src/foobar.h' is generated, however, I got 2
> problem for it.
>
> First, the generated content is:
> =========
> #define PATH_PREFIX "/home/tao/unstable/stardict"
> #define PATH_DATADIR "${prefix}/share"
> =========
>
> "${prefix}" is definitely not working as a C/C++ header. How can I replace
> the ${prefix} with the real value?
this is why people put the define into CPPFLAGS and let the Makefile expand it
if you're using automake, then something like:
AM_CPPFLAGS = -DPATH_DATADIR='"$(datadir)"'
> Second, everytime I modified the file 'src/foobar.h.in', and run 'make
> all', it cannot regenerate 'src/foobar.h'. Is there anything wrong? Why
> make doesn't know the dependency?
are you using automake or your own makefile ? if the former, it should take
care of it for you. if the latter, i think the autoconf manual gives tips
about this.
-mike
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