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| author | Zack Weinberg <zackw@panix.com> | 2013-09-13 20:42:04 -0400 |
|---|---|---|
| committer | Zack Weinberg <zackw@panix.com> | 2013-09-21 19:01:40 -0400 |
| commit | 11f520c61d8b21f1522968d6e6afb899070f0a6f (patch) | |
| tree | 761408f04e5f3e5b850377cf6d39eca53a13182a /NEWS | |
| parent | a1b936ff6c8462a8ffe9f2c7707f6b580549253d (diff) | |
| download | autoconf-11f520c61d8b21f1522968d6e6afb899070f0a6f.tar.gz | |
AC_CHECK_HEADER/AC_CHECK_HEADERS: complete transition to compile tests.
* lib/autoconf/headers.m4 (AC_CHECK_HEADER): Use _AC_CHECK_HEADER_COMPILE
by default. Continue to use _AC_CHECK_HEADER_PREPROC if fourth arg is '-'.
(_AC_CHECK_HEADER_PREPROC): Issue a deprecation warning.
(_AC_CHECK_HEADER_MONGREL, _AC_CHECK_HEADER_MONGREL_BODY): Remove.
* tests/c.at, tests/semantics.at: Update uses of AC_CHECK_HEADER(S).
* doc/autoconf.texi, NEWS: Document change.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -17,6 +17,16 @@ GNU Autoconf NEWS - User visible changes. echo. Macros AS_ECHO and AS_ECHO_N now expand unconditionally to 'printf "%s\n"' and 'printf %s'. +** AC_CHECK_HEADER and AC_CHECK_HEADERS now default to doing only a + compilation test. This completes the transition from preprocessor- + based header tests begun in Autoconf 2.56. + + The double test that was the default since Autoconf 2.64 is no + longer available. You can still request a preprocessor-only test + by specifying '-' as the fourth argument to either macro, but this + is now deprecated. If you really need that behavior use + AC_PREPROC_IFELSE. + ** Macros - New macro AC_C__GENERIC. |