More updates and cleanups on autotools and Makefiles
Makefile.am, example/Makefile.am:
* Replaced the obsolete INCLUDES variable with AM_CPPFLAGS/AM_CFLAGS
acinclude.m4:
* autoupdate replaced AC_FD_CC with AS_MESSAGE_LOG_FD
autogen.sh:
* Added -Wall to the autoreconf invocation, which turned up a whole slew
of warnings that are fixed by this patch
configure.in:
* Most of the changes are due to autoupdate, with subsequent manual
tidying
* Note that autoupdate bumped the AC_PREREQ version from 2.59 to 2.68. If
you normally use an older version of Autoconf, and everything works fine
if you comment out that directive, feel free to bump down the version
accordingly.
* Ensure that #include directives in C fragments always have no whitespace
to the left of the '#' mark, as some preprocessors need that to be in
the first column
example/Makefile.am:
* Don't need DEPS
* Use plain LDADD instead of LDADDS; if all programs in this file need to
link against the same set of libraries, then this is all you need
diff --git a/acinclude.m4 b/acinclude.m4
index 4ff672e..7ad8630 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -2,8 +2,8 @@
dnl _any_ output. Some compilers might issue warnings which we want
dnl to catch.
AC_DEFUN([AC_TRY_EVAL2],
-[{ (eval echo configure:__oline__: \"[$]$1\") 1>&AC_FD_CC; dnl
-(eval [$]$1) 2>&AC_FD_CC; _out=`eval [$]$1 2>&1` && test "x$_out" = x; }])
+[{ (eval echo configure:__oline__: \"[$]$1\") 1>&AS_MESSAGE_LOG_FD; dnl
+(eval [$]$1) 2>&AS_MESSAGE_LOG_FD; _out=`eval [$]$1 2>&1` && test "x$_out" = x; }])
dnl Like AC_TRY_COMPILE but calls AC_TRY_EVAL2 instead of AC_TRY_EVAL
AC_DEFUN([AC_TRY_COMPILE2],
@@ -19,8 +19,8 @@
ifelse([$3], , :, [rm -rf conftest*
$3])
else
- echo "configure: failed program was:" >&AC_FD_CC
- cat conftest.$ac_ext >&AC_FD_CC
+ echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
+ cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD
ifelse([$4], , , [ rm -rf conftest*
$4
])dnl