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| author | Roland McGrath <roland@gnu.org> | 2008-08-18 09:42:17 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2008-08-18 09:42:17 +0000 |
| commit | 2cf9ad5752c4a5949409fd7fad986552d1bc6a99 (patch) | |
| tree | 4f481e84618a9de54dfa63a21e8f2e9345c698ef /configure.in | |
| parent | 7df49c5d81b9f8ea55f16af939e0662d24cc099e (diff) | |
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2008-08-18 Roland McGrath <roland@redhat.com>
* configure.in (--with-cpu): Check compiler support for -march/-mcpu.
* configure: Regenerated.
* config.make.in (cflags-cpu): New substituted variable.
(with-cpu): Variable removed.
* Makeconfig (+cflags): Use $(cflags-cpu), not $(with-cpu).
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/configure.in b/configure.in index cd08a23e29..1651d38c10 100644 --- a/configure.in +++ b/configure.in @@ -326,7 +326,6 @@ AC_ARG_WITH([cpu], esac ]) - # An add-on can set this when it wants to disable the sanity check below. libc_config_ok=no @@ -1973,6 +1972,22 @@ EOF fi fi +if test -n "$submachine"; then + AC_CACHE_CHECK([for compiler option for CPU variant], + libc_cv_cc_submachine, [dnl + libc_cv_cc_submachine=no + for opt in "-march=$submachine" "-mcpu=$submachine"; do + if AC_TRY_COMMAND([${CC-cc} $opt -xc /dev/null -S -o /dev/null]); then + libc_cv_cc_submachine="$opt" + break + fi + done]) + if test "x$libc_cv_cc_submachine" = xno; then + AC_MSG_ERROR([${CC-cc} does not support $submachine]) + fi +fi +AC_SUBST(libc_cv_cc_submachine) + dnl Check whether we have the gd library available. AC_MSG_CHECKING(for libgd) if test "$with_gd" != "no"; then |