Stop using macOS -prebind option

* configure.ac (LD_SWITCH_SYSTEM_TEMACS): Remove -prebind,
which has been obsolete and ineffective since Mac OS X 10.4 (2005),
which was never necessary for correct operation, and which now
generates annoying warnings.  Problem reported by Robert Pluim in:
https://lists.gnu.org/r/emacs-devel/2019-01/msg00761.html

diff --git a/configure.ac b/configure.ac
index 752971942996354b6db8448b265ecaa4d61e748d..16491a95d565a8365b79fddce45b2b7c222880c0 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -5395,7 +5395,7 @@ case "$opsys" in
    else
      libs_nsgui=
    fi
-   LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
+   LD_SWITCH_SYSTEM_TEMACS="-fno-pie $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
 
    ## This is here because src/Makefile.in did some extra fiddling around
    ## with LD_SWITCH_SYSTEM.  It seems cleaner to put this in