not really a bug but somewhat odd : checking compiler /usr/local/bin/gcc8 ... no, mpn_lshift_com

[Vincent Lefevre]

On 2019-07-28 12:44:55 +0200, Vincent Lefevre wrote:
> On 2019-07-28 06:12:06 -0400, Dennis Clarke wrote:
> > configure:6813: ./a.out || ./b.out || ./a.exe || ./a_out.exe || ./conftest
> > Abort trap (core dumped)
> 
> I don't know in your case, but I fear that this program is buggy.
[...]

You can try the attached patch in case this would be the issue.
This could also solve invisible failures (as occurring inside
configure) in other cases.

-- 
Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
-------------- next part --------------
diff -r 36b5993aefae acinclude.m4
--- a/acinclude.m4	Sat Jul 13 22:25:31 2019 +0200
+++ b/acinclude.m4	Sun Jul 28 13:26:13 2019 +0200
@@ -660,11 +660,7 @@
 
 #if ! defined (__cplusplus)
 unsigned long
-lshift_com (rp, up, n, cnt)
-  unsigned long *rp;
-  unsigned long *up;
-  long n;
-  unsigned cnt;
+lshift_com (unsigned long *rp, unsigned long *up, long n, unsigned cnt)
 {
   unsigned long retval, high_limb, low_limb;
   unsigned tnc;
@@ -711,11 +707,7 @@
 #if ! defined (__cplusplus)
 #include <stdlib.h>
 void
-lshift_com (rp, up, n, cnt)
-  unsigned long *rp;
-  unsigned long *up;
-  long n;
-  unsigned cnt;
+lshift_com (unsigned long *rp, unsigned long *up, long n, unsigned cnt)
 {
   unsigned long high_limb, low_limb;
   unsigned tnc;