Fix detection of ABSL_HAVE_ELF_MEM_IMAGE on Haiku

Fixes #1181

ORIGINAL_AUTHOR=jerome.duval@gmail.com
PiperOrigin-RevId: 451006334
Change-Id: Id61e5889fb55594d09e92e7bb98fdf8bfbc13cc4

absl/debugging/internal/elf_mem_image.h

@@ -31,8 +31,9 @@
 #error ABSL_HAVE_ELF_MEM_IMAGE cannot be directly set
 #endif
 
-#if defined(__ELF__) && !defined(__OpenBSD__) && !defined(__QNX__) &&  \
+#if defined(__ELF__) && !defined(__OpenBSD__) && !defined(__QNX__) && \
-    !defined(__native_client__) && !defined(__asmjs__) && !defined(__wasm__)
+    !defined(__native_client__) && !defined(__asmjs__) &&             \
+    !defined(__wasm__) && !defined(__HAIKU__)
 #define ABSL_HAVE_ELF_MEM_IMAGE 1
 #endif