Sam Steingold wrote:
I have a header file avcall.h which collects the results of autoconf
tests, so it is mentioned in AC_CONFIG_HEADERS.
I also want it to define the package version cpp macro, so I added
#if !defined(LIBFFCALL_VERSION)
# define LIBFFCALL_VERSION @PACKAGE_VERSION@
#endif
I guess I can do this:
#if !defined(LIBFFCALL_VERSION)
# undef PACKAGE_VERSION
# define LIBFFCALL_VERSION PACKAGE_VERSION
#endif
and autoconf will replace it with
#if !defined(LIBFFCALL_VERSION)
# define PACKAGE_VERSION 123
# define LIBFFCALL_VERSION PACKAGE_VERSION
#endif
however, this is not good because the users of this package will have a
conflict of my PACKAGE_VERSION with their PACKAGE_VERSION from their config.h.
I cannot undef PACKAGE_VERSION in avcall.h because autoconf will replace it
with "#define PACKAGE_VERSION ...".
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