From 0f78b883f02651bd15a96a7294e01f94b28c20f8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Krause?= <joerg.krause@embedded.rocks>
Date: Mon, 13 May 2019 13:42:14 +0200
Subject: [PATCH] Fix find_program taglib-config when cross-compiling
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When cross-compiling Gerbera CMakes `find_program()` will search for
binaries on the host. This is typically correct, e.g. when search for
compilers or shells.

When cross-compiling searching for `taglib-config` should not find the
binary on the host, instead it should find the binary in the sysroot
directory, as the host `taglib-config` will output the wrong host paths
and libs, whereas the sysroot `taglib-config` will output the correct sysroot
paths and libs.

Therefore, use the `CMAKE_FIND_ROOT_PATH_MODE_PROGRAM` variable when
cross-compiling. This variable controls whether the `CMAKE_FIND_ROOT_PATH`
and `CMAKE_SYSROOT` are used by find_program().

Backported from: 0f78b883f02651bd15a96a7294e01f94b28c20f8

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
---
 cmake/FindTaglib.cmake | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cmake/FindTaglib.cmake b/cmake/FindTaglib.cmake
index 46a20ff2..7135d766 100644
--- a/cmake/FindTaglib.cmake
+++ b/cmake/FindTaglib.cmake
@@ -19,6 +19,9 @@ ELSE()
 	endif(NOT TAGLIB_MIN_VERSION)
 
 	if(NOT WIN32)
+            if (CMAKE_CROSSCOMPILING)
+              set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
+            endif(CMAKE_CROSSCOMPILING)
             find_program(TAGLIBCONFIG_EXECUTABLE NAMES taglib-config PATHS
 		   ${BIN_INSTALL_DIR}
             )
-- 
2.22.0