From b6c1a9e4cdea2d3e614125707389bf69c00769b0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= Date: Wed, 23 Nov 2016 10:18:30 -0500 Subject: [PATCH] build-sys: check for lz4 in the old and new numbering scheme (#4717) lz4 upstream decided to switch to an incompatible numbering scheme (1.7.3 follows 131, to match the so version). PKG_CHECK_MODULES does not allow two version matches for the same package, so e.g. lz4 < 10 || lz4 >= 125 cannot be used. Check twice, once for "new" numbers (anything below 10 is assume to be new), once for the "old" numbers (anything above >= 125). This assumes that the "new" versioning will not get to 10 to quickly. I think that's a safe assumption, lz4 is a mature project. Fixed #4690. (cherry picked from commit 3d4cf7de48a74726694abbaa09f9804b845ff3ba) --- configure.ac | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/configure.ac b/configure.ac index 0b10fc7de7..1928e65bde 100644 --- a/configure.ac +++ b/configure.ac @@ -623,10 +623,13 @@ AM_CONDITIONAL(HAVE_BZIP2, [test "$have_bzip2" = "yes"]) have_lz4=no AC_ARG_ENABLE(lz4, AS_HELP_STRING([--disable-lz4], [Disable optional LZ4 support])) AS_IF([test "x$enable_lz4" != "xno"], [ - PKG_CHECK_MODULES(LZ4, [ liblz4 >= 125 ], - [AC_DEFINE(HAVE_LZ4, 1, [Define in LZ4 is available]) + PKG_CHECK_MODULES(LZ4, [ liblz4 < 10 ], + [AC_DEFINE(HAVE_LZ4, 1, [Define if LZ4 is available]) have_lz4=yes], - have_lz4=no) + [PKG_CHECK_MODULES(LZ4, [ liblz4 >= 125 ], + [AC_DEFINE(HAVE_LZ4, 1, [Define if LZ4 is available]) + have_lz4=yes], + have_lz4=no)]) AS_IF([test "x$have_lz4" = xno -a "x$enable_lz4" = xyes], [AC_MSG_ERROR([*** LZ4 support requested but libraries not found])]) ]) -- 2.9.3