aboutsummaryrefslogtreecommitdiffstats
path: root/tools/configure
diff options
context:
space:
mode:
Diffstat (limited to 'tools/configure')
-rwxr-xr-xtools/configure47
1 files changed, 47 insertions, 0 deletions
diff --git a/tools/configure b/tools/configure
index de0327c12b..2ac7e5cf76 100755
--- a/tools/configure
+++ b/tools/configure
@@ -6253,6 +6253,53 @@ else
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan in -lm" >&5
+$as_echo_n "checking for isnan in -lm... " >&6; }
+if test "${ac_cv_lib_m_isnan+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char isnan ();
+int
+main ()
+{
+return isnan ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_m_isnan=yes
+else
+ ac_cv_lib_m_isnan=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_isnan" >&5
+$as_echo "$ac_cv_lib_m_isnan" >&6; }
+if test "x$ac_cv_lib_m_isnan" = x""yes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBM 1
+_ACEOF
+
+ LIBS="-lm $LIBS"
+
+else
+ as_fn_error $? "Could not find libm" "$LINENO" 5
+fi
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MD5 in -lcrypto" >&5
$as_echo_n "checking for MD5 in -lcrypto... " >&6; }
if test "${ac_cv_lib_crypto_MD5+set}" = set; then :