autoconf: Changed Makefiles

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1 18.5.2 Changed Makefiles
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1 
1 Add `@CFLAGS@', `@CPPFLAGS@', and `@LDFLAGS@' in your `Makefile.in'
1 files, so they can take advantage of the values of those variables in
1 the environment when `configure' is run.  Doing this isn't necessary,
1 but it's a convenience for users.
1 
1    Also add `@configure_input@' in a comment to each input file for
1 `AC_OUTPUT', so that the output files contain a comment saying they
1 were produced by `configure'.  Automatically selecting the right
1 comment syntax for all the kinds of files that people call `AC_OUTPUT'
1 on became too much work.
1 
1    Add `config.log' and `config.cache' to the list of files you remove
1 in `distclean' targets.
1 
1    If you have the following in `Makefile.in':
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1      prefix = /usr/local
1      exec_prefix = $(prefix)
1 
1 you must change it to:
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1      prefix = @prefix@
1      exec_prefix = @exec_prefix@
1 
1 The old behavior of replacing those variables without `@' characters
1 around them has been removed.
1