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-rwxr-xr-xconfigure38
-rw-r--r--configure.in21
2 files changed, 58 insertions, 1 deletions
diff --git a/configure b/configure
index a0cf9ecad..16bb8a738 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
#! /bin/sh
-# From configure.in 284a163.
+# From configure.in 8801585.
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.69.
#
@@ -4867,8 +4867,44 @@ if ac_fn_c_try_run "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -march=i686 (and we can run it)" >&5
+$as_echo_n "checking whether $CC supports -march=i686 (and we can run it)... " >&6; }
+ OLD_CFLAGS="$CFLAGS"
+ OLD_LDFLAGS="$LDFLAGS"
CFLAGS="$CFLAGS -march=i686"
LDFLAGS="$LDFLAGS -march=i686"
+ if test "$cross_compiling" = yes; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: guessing no" >&5
+$as_echo "guessing no" >&6; }
+ CFLAGS="$OLD_CFLAGS"
+ LDFLAGS="$OLD_LDFLAGS"
+
+
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+ int main(int argc, char **argv) { return 0; }
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ CFLAGS="$OLD_CFLAGS"
+ LDFLAGS="$OLD_LDFLAGS"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
else
diff --git a/configure.in b/configure.in
index 1fc2d0e29..6755e3ca5 100644
--- a/configure.in
+++ b/configure.in
@@ -481,8 +481,29 @@ AC_RUN_IFELSE(
])],
[
AC_MSG_RESULT([yes])
+ AC_MSG_CHECKING([whether $CC supports -march=i686 (and we can run it)])
+ OLD_CFLAGS="$CFLAGS"
+ OLD_LDFLAGS="$LDFLAGS"
CFLAGS="$CFLAGS -march=i686"
LDFLAGS="$LDFLAGS -march=i686"
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([
+ int main(int argc, char **argv) { return 0; }
+ ])],
+ [
+ AC_MSG_RESULT([yes])
+ ],
+ [
+ AC_MSG_RESULT([no])
+ CFLAGS="$OLD_CFLAGS"
+ LDFLAGS="$OLD_LDFLAGS"
+ ],
+ [
+ AC_MSG_RESULT([guessing no])
+ CFLAGS="$OLD_CFLAGS"
+ LDFLAGS="$OLD_LDFLAGS"
+ ]
+ )
],
[
AC_MSG_RESULT([no])