Issue #24543: Use AC_LINK instead of AC_COMPILE in order to prevent false
positives with the -flto option (gcc >= 4.9.0 and clang).
diff --git a/configure b/configure
index 7ab0a46..7127871 100755
--- a/configure
+++ b/configure
@@ -12747,12 +12747,13 @@
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"; then :
have_gcc_asm_for_x87=yes
else
have_gcc_asm_for_x87=no
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_gcc_asm_for_x87" >&5
$as_echo "$have_gcc_asm_for_x87" >&6; }
if test "$have_gcc_asm_for_x87" = yes
diff --git a/configure.ac b/configure.ac
index c2a1830..2c998b1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3723,7 +3723,7 @@
# so we try it on all platforms.
AC_MSG_CHECKING(whether we can use gcc inline assembler to get and set x87 control word)
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[
unsigned short cw;
__asm__ __volatile__ ("fnstcw %0" : "=m" (cw));
__asm__ __volatile__ ("fldcw %0" : : "m" (cw));