absl/debugging: Fix build on Solaris
diff --git a/absl/debugging/internal/elf_mem_image.h b/absl/debugging/internal/elf_mem_image.h
index 113071a..5f4537b 100644
--- a/absl/debugging/internal/elf_mem_image.h
+++ b/absl/debugging/internal/elf_mem_image.h
@@ -33,7 +33,7 @@
#if defined(__ELF__) && !defined(__OpenBSD__) && !defined(__QNX__) && \
!defined(__native_client__) && !defined(__asmjs__) && \
- !defined(__wasm__) && !defined(__HAIKU__)
+ !defined(__wasm__) && !defined(__HAIKU__) && !defined(__sun)
#define ABSL_HAVE_ELF_MEM_IMAGE 1
#endif