From 84dea8284c521f08508bb2dcbc99db3b5d3438fd Mon Sep 17 00:00:00 2001
From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Date: Thu, 27 Aug 2020 17:32:09 +0200
Subject: [PATCH] gnuradio-runtime_pmt: dont hardcode
 INTERFACE_INCLUDE_DIRECTORIES

gnuradio-runtimeTargets.cmake and gnuradio-pmtTargets.cmake are filled
using CMAKE_INSTALL_PREFIX for INSTALL_INTERFACE.

Since CMAKE_INSTALL_PREFIX, in buildroot, is set to /usr, these files contains
path to host system.

With BR2_COMPILER_PARANOID_UNSAFE_PATH package using gnuradio fails with:
arm-linux-gnueabihf-g++: ERROR: unsafe header/library path used in cross-compilation: '-isystem' '/usr/include'

By simply providing 'include', produced .cmake contains:
INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
instead of
INTERFACE_INCLUDE_DIRECTORIES "/usr/include"

[Upstream status: https://github.com/gnuradio/gnuradio/pull/3737]

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
---
 gnuradio-runtime/lib/CMakeLists.txt     | 2 +-
 gnuradio-runtime/lib/pmt/CMakeLists.txt | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gnuradio-runtime/lib/CMakeLists.txt b/gnuradio-runtime/lib/CMakeLists.txt
index 5aa90a5e1..fc32f473b 100644
--- a/gnuradio-runtime/lib/CMakeLists.txt
+++ b/gnuradio-runtime/lib/CMakeLists.txt
@@ -214,7 +214,7 @@ target_link_libraries(gnuradio-runtime PUBLIC
 
 target_include_directories(gnuradio-runtime
   PUBLIC
-    $<INSTALL_INTERFACE:${CMAKE_INSTALL_PREFIX}/include>
+    $<INSTALL_INTERFACE:include>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../include>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/../include>
   PRIVATE
diff --git a/gnuradio-runtime/lib/pmt/CMakeLists.txt b/gnuradio-runtime/lib/pmt/CMakeLists.txt
index 9fb98d0fc..6dfcd945c 100644
--- a/gnuradio-runtime/lib/pmt/CMakeLists.txt
+++ b/gnuradio-runtime/lib/pmt/CMakeLists.txt
@@ -33,7 +33,7 @@ target_link_libraries(gnuradio-pmt
 
 target_include_directories(gnuradio-pmt
   PUBLIC
-  $<INSTALL_INTERFACE:${CMAKE_INSTALL_PREFIX}/include>
+  $<INSTALL_INTERFACE:include>
   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../../include>
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/
   )
-- 
2.26.2