gentoo-overlay/dev-libs/librdkafka/files/librdkafka-0.9.3-remove-lz4-automagic.patch

From 7c64454f83f74dbe0dd33e3726906b20740e19a1 Mon Sep 17 00:00:00 2001
From: Thomas Deutschmann <whissi@whissi.de>
Date: Fri, 27 Jan 2017 13:56:23 +0100
Subject: [PATCH] configure: Add option to disable automagic dependency on
 liblz4

Previously, mklove activated lz4 support when lz4 was found. This added
a so called "automagic" dependency on liblz4 which is a problem from
distributions.

This commit will add an option which will allow you to explicit disable
lz4 usage.
---
 configure.librdkafka | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/configure.librdkafka b/configure.librdkafka
index cf47fea..71c29c7 100644
--- a/configure.librdkafka
+++ b/configure.librdkafka
@@ -30,6 +30,8 @@ mkl_toggle_option "Development" ENABLE_REFCNT_DEBUG "--enable-refcnt-debug" "Ena
 
 mkl_toggle_option "Development" ENABLE_SHAREDPTR_DEBUG "--enable-sharedptr-debug" "Enable sharedptr debugging" "n"
 
+mkl_toggle_option "Feature" ENABLE_LZ4 "--enable-lz4" "Enable LZ4 support" "y"
+
 mkl_toggle_option "Feature" ENABLE_SSL "--enable-ssl" "Enable SSL support" "y"
 mkl_toggle_option "Feature" ENABLE_SASL "--enable-sasl" "Enable SASL support" "y"
 
@@ -44,8 +46,11 @@ function checks {
     mkl_lib_check "zlib" "WITH_ZLIB" disable CC "-lz" \
                   "#include <zlib.h>"
     mkl_lib_check "libcrypto" "" disable CC "-lcrypto"
-    mkl_lib_check "liblz4" "WITH_LZ4" disable CC "-llz4" \
-                  "#include <lz4frame.h>"
+
+    if [[ "$ENABLE_LZ4" == "y" ]]; then
+        mkl_lib_check "liblz4" "WITH_LZ4" disable CC "-llz4" \
+                      "#include <lz4frame.h>"
+    fi
 
     # Snappy support is built-in
     mkl_allvar_set WITH_SNAPPY WITH_SNAPPY y
-- 
2.11.0