--- src/curl.c.orig	2019-06-19 09:02:26 UTC

+++ src/curl.c

@@ -24,6 +24,8 @@

 #define BSWAP_32 OSSwapInt32

 #elif (defined(__OpenBSD__))

 #define BSWAP_32(x) swap32(x)

+#elif (defined(__FreeBSD__))

+#include <sys/endian.h>

 #elif (defined(__GLIBC__))

 #include <byteswap.h>

 #define BSWAP_32(x) bswap_32(x)

@@ -146,7 +148,7 @@ static size_t rcurl_read(void *target, size_t sz, size

 static int rcurl_fgetc(Rconnection con) {

   int x = 0;

 #ifdef WORDS_BIGENDIAN

-  return rcurl_read(&x, 1, 1, con) ? BSWAP_32(x) : R_EOF;

+  return rcurl_read(&x, 1, 1, con) ? bswap32(x) : R_EOF;

 #else

   return rcurl_read(&x, 1, 1, con) ? x : R_EOF;

 #endif