I'm using autoconf 2.60a.
Given the following configure script,
AC_INIT
AC_CONFIG_HEADER(config.h)
AH_BOTTOM([
#define FOO
#if defined (__LOSER_SYSTEM__)
#undef FOO
#endif
])
AC_OUTPUT
running
autoheader
autoconf
./configure
produces the following config.h file:
/* config.h. Generated from config.h.in by configure. */
/* config.h.in. Generated from configure.in by autoheader. */
/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT ""
/* Define to the full name of this package. */
#define PACKAGE_NAME ""
/* Define to the full name and version of this package. */
#define PACKAGE_STRING ""
/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME ""
/* Define to the version of this package. */
#define PACKAGE_VERSION ""
#define FOO
#if defined (__LOSER_SYSTEM__)
/* #undef FOO */
#endif
Note that the #undef is commented out. The documentation for
AH_BOTTOM says
? Macro: AH_BOTTOM (text)
Include text at the bottom of the header template file.
so I wasn't expecting the text to be modified. I can easily work
around the problem by avoiding #undef in the argument to AH_BOTTOM,
but I'm wondering whether this behavior is a bug or feature.
Thanks,
jwe
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