* autoreconf.sh: Likewise.
* autoupdate.sh: Likewise.
* autoconf.sh: Change `exit' to `{ (exit 1); exit; }' after m4 and
awk commands to ensure exit state is in a defined state.
autoconf and autoheader. Expected warnings disabled by "-W none"
Preceding comment removed as no longer relevant.
* tests/semantics.m4 (AC_CHECK_PROG & AC_PATH_PROG): Check
stderr from autoconf.
(AC_PATH_PROG & AC_PATH_PROGS): Likewise.
(AC_CONFIG_FILES, HEADERS, LINKS and COMMANDS): Likewise.
* tests/tools.m4 (autoheader): Check that autoheader prints
a warning for missing templates. Check stderr from autoconf.
* tests/torture.m4 (config.status under extreme conditions):
Check stderr from autoconf and autoheader.
(command line interface): Check stderr from autoconf.
(AT_INIT): Let `at_stop_on_error' and `at_verbose' be `:'/`false'
variables instead of `'/`1'.
`at_check_stds' replaces `at_no_redirs'.
Rename `Snippet 3' as `Snippet 4'.
Introduce `Snippet 3' for variable initializations.
Adjust the dependencies.
(AT_CHECK): Don't show diff's result unless verbose.
as well.
(_AC_INIT_HELP): Likewise.
(NEWS): Note checking for configure.gnu.
* doc/autoconf.texi: Document checking for configure.gnu when
recursing subdirectories.
from the output - it is only printed by Visual C that gives
correct exit status.
* aclang.m4 (AC_PROG_CPP): Don't try '${CC-cc} -nologo -E'
by the same reason.
and checks whether it produces errors or warnings. Don't put grep
output into a variable, use another grep instead.
(AC_TRY_CPP): Use _AC_TRY_CPP. Copy conftest.err to config.log
if the case of an error.
* aclang.m4 (AC_LANG(C), AC_LANG(C++), AC_LANG(Fortran 77)):
define AC_LANG_ABBREV to the short language name.
(_AC_PROG_CPP_WORKS): New macro. It checks whether the current
preprocessor can be used to check for existance of headers.
Most code taken from ...
(AC_PROG_CPP): ... here. Use _AC_PROG_CPP_WORKS. Use shell
"for" to find working CPP. Use AC_LANG_PUSH(C) and AC_LANG_POP -
it's a macro for C only.
(AC_PROG_CXXCPP): Rewritten using _AC_PROG_CPP_WORKS.
what languages are affected by CPPFLAGS, LDFLAGS and LIBS.
Extended description of LDFLAGS and LIBS.
(Compilers and Preprocessors, C Compiler Characteristics):
Recommend Automake as the source of ansi2knr.
(Autoconf Language, Quotation and Nested Macros): English fixes.
(Quotation and Nested Macros): Unclear example replaced with
an explanation of when m4 expands quotes. Added explanation why
unquoted calls are dangerous.
which uses $ac_objext hence depends upon _AC_OBJEXT.
* aclang.m4 (AC_PROG_CC, AC_PROG_CXX, AC_PROG_F77): Call
_AC_EXEEXT before _AC_OBJEXT since the former needs $ac_objext.
