Hey,
According to Vincent Torri on 11/28/2009 2:22 AM:
AC_DEFUN([ECORE_CHECK_MODULE],
[
m4_pushdef([UP], m4_toupper([[$1]]))dnl
m4_pushdef([DOWN], m4_tolower([[$1]]))dnl
Lose the extra quotes. Per the NEWS, m4_toupper and m4_tolower now
properly quote their expansion. So you need:
m4_pushdef([UP], m4_toupper([$1]))dnl
m4_pushdef([DOWN], m4_tolower([$1]))dnl
and everything else should fall into place. For example,
it seems to work with autoconf 2.64 and 2.65.
have_ecore_[]m4_defn([DOWN])=no
i don't understand what i have to change here.
with the extra quotes, this line was producing
have_ecore_foo[foo]=no
instead of the intended
have_ecore_foo=no
Sorry that this is a backwards-incompatible change, but we did document
it, and it makes m4_toupper more consistent with other m4sugar text
manipulation macros, in that it does not spuriously cause macro expansion
of the resulting text if the case-change happens to name an existing macro.
well, m4 quoting is still like voodoo magic for me. I guess i have to
carefully read the doc...
In order to write a configure.ac script that will work with both 2.64 and
younger, and with 2.65, you will need a wrapper function. Here's one way
to write it:
m4_pushdef([AAA],[BBB])dnl
m4_if(m4_toupper([aaa]),[BBB],
[m4_define([my_toupper],[m4_toupper([[$1]])])],
[m4_copy([m4_toupper], [my_toupper])])
m4_popdef([AAA])
I really use AAA, BBB and aaa ? (that sounds like a really stupid
question) or should I replace them by something ?
Vincent Torri
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