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|
--- a/configure.ac
+++ b/configure.ac
@@ -1080,68 +1080,15 @@ 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
- if test -z "${LZ4_CFLAGS}" -a -z "${LZ4_LIBS}"; then
- # if the user did not explicitly specify flags, try to autodetect
- PKG_CHECK_MODULES([LZ4],
- [liblz4 >= 1.7.1 liblz4 < 100],
- [have_lz4="yes"],
- [LZ4_LIBS="-llz4"] # If this fails, we will do another test next.
- # We also add set LZ4_LIBS otherwise the
- # linker will not know about the lz4 library
- )
- fi
saved_CFLAGS="${CFLAGS}"
saved_LIBS="${LIBS}"
CFLAGS="${CFLAGS} ${LZ4_CFLAGS}"
LIBS="${LIBS} ${LZ4_LIBS}"
- # If pkgconfig check failed or LZ4_CFLAGS/LZ4_LIBS env vars
- # are used, check the version directly in the LZ4 include file
- if test "${have_lz4}" != "yes"; then
- AC_CHECK_HEADERS([lz4.h],
- [have_lz4h="yes"],
- [])
-
- if test "${have_lz4h}" = "yes" ; then
- AC_MSG_CHECKING([additionally if system LZ4 version >= 1.7.1])
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([[
-#include <lz4.h>
- ]],
- [[
-/* Version encoding: MMNNPP (Major miNor Patch) - see lz4.h for details */
-#if LZ4_VERSION_NUMBER < 10701L
-#error LZ4 is too old
-#endif
- ]]
- )],
- [
- AC_MSG_RESULT([ok])
- have_lz4="yes"
- ],
- [AC_MSG_RESULT([system LZ4 library is too old])]
- )
- fi
- fi
-
- # Double check we have a few needed functions
- if test "${have_lz4}" = "yes" ; then
- AC_CHECK_LIB([lz4],
- [LZ4_compress_default],
- [],
- [have_lz4="no"])
- AC_CHECK_LIB([lz4],
- [LZ4_decompress_safe],
- [],
- [have_lz4="no"])
- fi
-
- if test "${have_lz4}" != "yes" ; then
- AC_MSG_RESULT([ usable LZ4 library or header not found, using version in src/compat/compat-lz4.*])
- AC_DEFINE([NEED_COMPAT_LZ4], [1], [use copy of LZ4 source in compat/])
- LZ4_LIBS=""
- fi
+ AC_MSG_RESULT([ usable LZ4 library or header not found, using version in src/compat/compat-lz4.*])
+ AC_DEFINE([NEED_COMPAT_LZ4], [1], [use copy of LZ4 source in compat/])
+ LZ4_LIBS=""
OPTIONAL_LZ4_CFLAGS="${LZ4_CFLAGS}"
OPTIONAL_LZ4_LIBS="${LZ4_LIBS}"
AC_DEFINE(ENABLE_LZ4, [1], [Enable LZ4 compression library])
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