Fixes:
https://autobuild.buildroot.net/results/924b1015d4b81385409ef00f1a14be3ca1959c8e/
As part of building flex for the target a few files are built for the host,
including a rpl_malloc() implementation containing a malloc() forward
declaration without any function parameters.
GCC 15 defaults to -std=gnu23, which handles function declarations without
parameters differently from earlier C standards leading to compilation
errors:
../lib/malloc.c:6:12: warning: conflicting types for built-in function 'malloc'; expected 'void *(long unsigned int)' [-Wbuiltin-declaration-mismatch]
6 | void *malloc ();
| ^~~~~~
../lib/malloc.c:5:1: note: 'malloc' is declared in header '<stdlib.h>'
4 | #include <sys/types.h>
+++ |+#include <stdlib.h>
5 |
../lib/malloc.c: In function 'rpl_malloc':
../lib/malloc.c:16:15: error: too many arguments to function 'malloc'; expected 0, have 1
https://gcc.gnu.org/gcc-15/porting_to.html#c23-fn-decls-without-parameters
Add a patch submitted upstream to correct the prototype.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
Peter Korsgaard
7b98e2ce2c