PATCH: strip comments while scanning for macro dependencies

[Alexandre Duret-Lutz]

Hi,

aclocal is stripping comment lines from configure.in, but not from
other files.  Hence it can detect wrong dependencies and output useless
functions in aclocal.m4.

For instance the macro AC_PATH_GENERIC (from the autoconf
archive) refers to AM_PATH_GTK in its comments:

 % grep m4/generic_path.m4 AM_PATH_GTK
 dnl At present there is no support for additional "MODULES" (see AM_PATH_GTK)

Any use of AC_PATH_GENERIC will trigger the inclusion of AM_PATH_GTK:

 % aclocal --verbose
 [...]
 saw macro AC_PATH_GENERIC
 aclocal: configure.in: 226: macro `AM_PATH_GTK' not found in library
 [...]

am.patch
Description: Strip comments while scanning for macro dependencies.

Thanks,
-- 
Alexandre Duret-Lutz