--- a/configure.ac
+++ b/configure.ac
@@ -1058,37 +1058,14 @@ dnl
 AC_ARG_VAR([LZ4_CFLAGS], [C compiler flags for lz4])
 AC_ARG_VAR([LZ4_LIBS], [linker flags for lz4])
 if test "$enable_lz4" = "yes" && test "$enable_comp_stub" = "no"; then
-    AC_CHECKING([for LZ4 Library and Header files])
-    havelz4lib=1
 
-    # if LZ4_LIBS is set, we assume it will work, otherwise test
-    if test -z "${LZ4_LIBS}"; then
-	AC_CHECK_LIB(lz4, LZ4_compress,
-	    [ LZ4_LIBS="-llz4" ],
-	    [
-	        AC_MSG_RESULT([LZ4 library not found.])
-	        havelz4lib=0
-	    ])
-    fi
+    AC_MSG_RESULT([Using LZ4 library in src/compat/compat-lz4.*])
+    AC_DEFINE([NEED_COMPAT_LZ4], [1], [use copy of LZ4 source in compat/])
+    LZ4_LIBS=""
 
-    saved_CFLAGS="${CFLAGS}"
-    CFLAGS="${CFLAGS} ${LZ4_CFLAGS}"
-    AC_CHECK_HEADERS(lz4.h,
-       ,
-       [
-	   AC_MSG_RESULT([LZ4 headers not found.])
-	   havelz4lib=0
-       ])
-
-    if test $havelz4lib = 0 ; then
-	AC_MSG_RESULT([LZ4 library or header not found, using version in src/compat/compat-lz4.*])
-	AC_DEFINE([NEED_COMPAT_LZ4], [1], [use copy of LZ4 source in compat/])
-	LZ4_LIBS=""
-    fi
     OPTIONAL_LZ4_CFLAGS="${LZ4_CFLAGS}"
     OPTIONAL_LZ4_LIBS="${LZ4_LIBS}"
     AC_DEFINE(ENABLE_LZ4, 1, [Enable LZ4 compression library])
-    CFLAGS="${saved_CFLAGS}"
 fi