openvpn: update to 2.4.5
[openwrt/openwrt.git] / package / network / services / openvpn / patches / 210-build_always_use_internal_lz4.patch
index 45a0207..b3eb7c7 100644 (file)
@@ -1,43 +1,74 @@
 --- a/configure.ac
 +++ b/configure.ac
-@@ -1058,37 +1058,14 @@ dnl
+@@ -1077,68 +1077,15 @@ 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
--    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 "${LZ4_LIBS}"; then
--      AC_CHECK_LIB(lz4, LZ4_compress,
--          [ LZ4_LIBS="-llz4" ],
--          [
--              AC_MSG_RESULT([LZ4 library not found.])
--              havelz4lib=0
--          ])
+-    if test -z "${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 "${have_lz4h}" = "yes" ; then
+-          AC_MSG_CHECKING([additionally if system LZ4 version >= 1.7.1])
+-          AC_COMPILE_IFELSE(
+-              [AC_LANG_PROGRAM([[
+-#include <lz4.h>
+-                               ]],
+-                               [[
+-/* Version encoding: MMNNPP (Major miNor Patch) - see lz4.h for details */
+-#if LZ4_VERSION_NUMBER < 10701L
+-#error LZ4 is too old
+-#endif
+-                               ]]
+-                              )],
+-              [
+-                  AC_MSG_RESULT([ok])
+-                  have_lz4="yes"
+-              ],
+-              [AC_MSG_RESULT([system LZ4 library is too old])]
+-          )
+-      fi
 -    fi
-+    AC_MSG_RESULT([Using LZ4 library in src/compat/compat-lz4.*])
-+    AC_DEFINE([NEED_COMPAT_LZ4], [1], [use copy of LZ4 source in compat/])
-+    LZ4_LIBS=""
--    saved_CFLAGS="${CFLAGS}"
--    CFLAGS="${CFLAGS} ${LZ4_CFLAGS}"
--    AC_CHECK_HEADERS(lz4.h,
--       ,
--       [
--         AC_MSG_RESULT([LZ4 headers not found.])
--         havelz4lib=0
--       ])
 -
--    if test $havelz4lib = 0 ; then
--      AC_MSG_RESULT([LZ4 library or header not found, using version in src/compat/compat-lz4.*])
+-    # Double check we have a few needed functions
+-    if test "${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="${LZ4_LIBS}"
-     AC_DEFINE(ENABLE_LZ4, 1, [Enable LZ4 compression library])
--    CFLAGS="${saved_CFLAGS}"
- fi
+     AC_DEFINE(ENABLE_LZ4, [1], [Enable LZ4 compression library])