Fixed bug 1587 - "aclocal" fails to generate a sufficient "aclocal.m4"
authorSam Lantinga <slouken@libsdl.org>
Fri, 28 Sep 2012 03:18:18 -0700
changeset 649103b7e6b0a8bf
parent 6490 d2d8576aa3a0
child 6492 0732954fa8ef
Fixed bug 1587 - "aclocal" fails to generate a sufficient "aclocal.m4"

Cecil Curry 2012-08-27 16:55:12 PDT

Allow "aclocal" to find the "AC_CHECK_DEFINE" macro.

On running:

rm aclocal.m4
libtoolize --install --copy --force
aclocal -I acinclude
autoconf -I acinclude

The former three commands succeed, but "autoconf" fails with:

configure.in:198: error: possibly undefined macro: AC_CHECK_DEFINE
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.

"aclocal" fails to find AC_CHECK_DEFINE and hence add such macro to
"aclocal.m4". Here is why:

* "acinclude/ac_check_define.m4" defines AC_CHECK_DEFINE via define() rather
than AC_DEFUN().
* "aclocal" fails to find macros defined via define().
acinclude/ac_check_define.m4
     1.1 --- a/acinclude/ac_check_define.m4	Fri Sep 28 02:43:13 2012 -0700
     1.2 +++ b/acinclude/ac_check_define.m4	Fri Sep 28 03:18:18 2012 -0700
     1.3 @@ -1,4 +1,4 @@
     1.4 -define(AC_CHECK_DEFINE,[dnl
     1.5 +AC_DEFUN([AC_CHECK_DEFINE],[dnl
     1.6    AC_CACHE_CHECK(for $1 in $2, ac_cv_define_$1,
     1.7      AC_EGREP_CPP([YES_IS_DEFINED], [
     1.8  #include <$2>