Fixed prebuilt binary compatibility with musl and ARM64 systems

fixes #1578 (comment)

- up until recently, we've never provided musl and arm64 prebuilt binaries to users
- to maintain compatibility with older glibc versions, we have a symbol
  override that gets included at compile time
- this didn't take into account ARM64 systems, which ship with a later
  glibc version which first supported arm64: https://www.phoronix.com/scan.php?page=news_item&px=MTI2MTc
- it also didn't take into account musl systems, which don't use glibc
  and therefore should be ignored

Author: daniellockyer

src/gcc-preinclude.h

@@ -1,6 +1,26 @@
 
 // http://web.archive.org/web/20140401031018/http://rjpower9000.wordpress.com:80/2012/04/09/fun-with-shared-libraries-version-glibc_2-14-not-found/
 
-#if defined(__linux__) && defined(__x86_64__)
+#define _GNU_SOURCE
+#include <features.h>
+#undef _GNU_SOURCE
+
+#if defined(__linux__) && defined(__USE_GNU)
+
+#if defined(__x86_64__)
 __asm__(".symver memcpy,memcpy@GLIBC_2.2.5");
+__asm__(".symver exp,exp@GLIBC_2.2.5");
+__asm__(".symver log,log@GLIBC_2.2.5");
+__asm__(".symver pow,pow@GLIBC_2.2.5");
+__asm__(".symver fcntl64,fcntl@GLIBC_2.2.5");
+#endif
+
+#if defined(__aarch64__) || defined(_M_ARM64)
+__asm__(".symver memcpy,memcpy@GLIBC_2.17");
+__asm__(".symver exp,exp@GLIBC_2.17");
+__asm__(".symver log,log@GLIBC_2.17");
+__asm__(".symver pow,pow@GLIBC_2.17");
+__asm__(".symver fcntl64,fcntl@GLIBC_2.17");
+#endif
+
 #endif