diff --git a/cmake/SndFileChecks.cmake b/cmake/SndFileChecks.cmake
--- a/cmake/SndFileChecks.cmake
+++ b/cmake/SndFileChecks.cmake
@@ -113,13 +113,9 @@ else ()
 		set (SF_COUNT_MAX "0x7FFFFFFFFFFFFFFFLL")
 		set (SIZEOF_SF_COUNT_T 8)
 	else ()
-		message ("")
-		message ("*** The configure process has determined that this system is capable")
-		message ("*** of Large File Support but has not been able to find a type which")
-		message ("*** is an unambiguous 64 bit file offset.")
-		message ("*** Please contact the author to help resolve this problem.")
-		message ("")
-		message (FATAL_ERROR "Bad file offset type.")
+		set (TYPEOF_SF_COUNT_T "int64_t")
+		set (SF_COUNT_MAX "0x7FFFFFFFFFFFFFFFLL")
+		set (SIZEOF_SF_COUNT_T 8)
 	endif ()
 endif ()
 
@@ -179,7 +175,10 @@ endif ()
 
 check_symbol_exists (S_IRGRP sys/stat.h HAVE_DECL_S_IRGRP)
 
-test_big_endian (WORDS_BIGENDIAN)
+string (TOLOWER ${CMAKE_SYSTEM_NAME} SYSTEM_LOWER)
+if (NOT SYSTEM_LOWER STREQUAL "emscripten")
+	test_big_endian(WORDS_BIGENDIAN)
+endif ()
 if (WORDS_BIGENDIAN)
 	set (CPU_IS_BIG_ENDIAN 1)
 else ()