From 2fa960098e5b6f9daa9f7d6cab27188566859be8 Mon Sep 17 00:00:00 2001
From: Bernd Kuhls <bernd.kuhls@t-online.de>
Date: Sat, 12 Oct 2019 14:43:46 +0200
Subject: [PATCH] CMake: install libmemenv.a

Needed for qt5webkit
https://git.busybox.net/buildroot/commit/?id=8a10d9ce311c6cb0490d76921cae55618c258354
https://git.busybox.net/buildroot/commit/?id=16f847340d07dce620e4c3fc0a099aa79898d86a

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
---
 CMakeLists.txt | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a65afbf..83b2425 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -187,6 +187,30 @@ target_sources(leveldb
     "${LEVELDB_PUBLIC_INCLUDE_DIR}/write_batch.h"
 )
 
+set(libmemenv_a_sources
+    "${PROJECT_SOURCE_DIR}/helpers/memenv/memenv.cc"
+    "${PROJECT_SOURCE_DIR}/helpers/memenv/memenv.h"
+    )
+add_library(memenv STATIC ${libmemenv_a_sources})
+target_compile_definitions(memenv
+  PRIVATE
+    # Used by include/export.h when building shared libraries.
+    LEVELDB_COMPILE_LIBRARY
+    # Used by port/port.h.
+    ${LEVELDB_PLATFORM_NAME}=1
+)
+if (NOT HAVE_CXX17_HAS_INCLUDE)
+  target_compile_definitions(memenv
+    PRIVATE
+      LEVELDB_HAS_PORT_CONFIG_H=1
+  )
+endif(NOT HAVE_CXX17_HAS_INCLUDE)
+target_include_directories(memenv
+  PUBLIC
+    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
+    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+)
+
 if (WIN32)
   target_sources(leveldb
     PRIVATE
@@ -418,7 +436,7 @@ endif(LEVELDB_BUILD_BENCHMARKS)
 
 if(LEVELDB_INSTALL)
   include(GNUInstallDirs)
-  install(TARGETS leveldb
+  install(TARGETS leveldb memenv
     EXPORT leveldbTargets
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
     LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
@@ -444,6 +462,12 @@ if(LEVELDB_INSTALL)
     DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/leveldb
   )
 
+  install(
+    FILES
+      "${PROJECT_SOURCE_DIR}/helpers/memenv/memenv.h"
+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/helpers/memenv
+  )
+
   include(CMakePackageConfigHelpers)
   write_basic_package_version_file(
       "${PROJECT_BINARY_DIR}/leveldbConfigVersion.cmake"
-- 
2.20.1