Check incompatible existing default symbol definition

After resolving a versioned reference, foo@VER1, to a default versioned
definition, foo@@VER1, from a shared object, we also merge it with
the existing regular default symbol definition, foo.  When foo is IFUNC
and foo@@VER1 aren't, we will merge 2 incompatible definitions.  This
patch avoids merging foo@@VER1 definition with foo definition if
one is IFUNC and the other isn't.

1 files changed, 9 insertions, 0 deletions

diff --git a/ld/testsuite/ld-ifunc/pr16467c.c b/ld/testsuite/ld-ifunc/pr16467c.c
new file mode 100644
index 0000000..e2a901c
--- /dev/null
+++ b/ld/testsuite/ld-ifunc/pr16467c.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+const char* sd_get_seats(void);
+
+int
+main (int argc, char **argv)
+{
+  printf("%s\n", sd_get_seats());
+  return 0;
+}