Add musl patch to support HYBRID_MALLOC on elf systems

* src/gmalloc.c: Adjust for HYBRID_MALLOC in the non CYGWIN case.
(__default_morecore): Here, in particular.
* configure.ac: Define HYBRID_MALLOC when unexelf.o is used.
New variable SHEAP_OBJ.
* src/Makefile.in: Use it.
(Bug#22086)

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gmalloc.c b/src/gmalloc.c
index 72d65af4974..30e01319e0e 100644
--- a/src/gmalloc.c
+++ b/src/gmalloc.c
@@ -70,7 +70,7 @@ extern void emacs_abort (void);
 #define aligned_alloc galigned_alloc
 #define free gfree
 
-#ifdef CYGWIN
+#ifdef HYBRID_MALLOC
 extern void *bss_sbrk (ptrdiff_t size);
 extern int bss_sbrk_did_unexec;
 extern char bss_sbrk_buffer[];
@@ -1542,7 +1542,7 @@ void *
 __default_morecore (ptrdiff_t increment)
 {
   void *result;
-#if defined (CYGWIN)
+#ifdef HYBRID_MALLOC
   if (!DUMPED)
     {
       return bss_sbrk (increment);