rocksdb: Add an option to set static library

Modify the CMakeLists.txt to add an Option for
STATIC target import, as available for shared library.

Link: facebook/rocksdb#12890

Configure static library default to switched off
as shared libraries are sufficient in most cases.

Signed-off-by: Bhabu Bindu <bindu.bhabu@kpit.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-dbs/rocksdb/files/static_library_as_option.patch

@@ -0,0 +1,72 @@
+From 285d306494bde3e9c24c8cd6fea1eb380a304d03 Mon Sep 17 00:00:00 2001
+From: Bindu-Bhabu <bindudaniel1996@gmail.com>
+Date: Fri, 26 Jul 2024 15:14:45 +0530
+Subject: Add option to CMake for building static libraries
+
+ROCKSDB creates a STATIC library target reference by default.
+Modify the cmake so that the STATIC library is also an option
+just like creating a SHARED library and set default to ON.
+
+Upstream-Status: Accepted
+Link: https://github.com/facebook/rocksdb/pull/12890
+
+Signed-off-by: Nisha Parrakat <nisha.m.parrakat@bmw.de>
+Signed-off-by: Bindu Bhabu <bhabu.bindu@kpit.com>
+---
+ CMakeLists.txt | 29 +++++++++++++++++------------
+ 1 file changed, 17 insertions(+), 12 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 93b884dd9c1..2ca925d505c 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -98,6 +98,7 @@ if (WITH_WINDOWS_UTF8_FILENAMES)
+   add_definitions(-DROCKSDB_WINDOWS_UTF8_FILENAMES)
+ endif()
+ option(ROCKSDB_BUILD_SHARED "Build shared versions of the RocksDB libraries" ON)
++option(ROCKSDB_BUILD_STATIC "Build static versions of the RocksDB libraries" ON)
+
+ if( NOT DEFINED CMAKE_CXX_STANDARD )
+   set(CMAKE_CXX_STANDARD 17)
+@@ -1139,11 +1140,13 @@ string(REGEX REPLACE "[^0-9: /-]+" "" GIT_DATE "${GIT_DATE}")
+ set(BUILD_VERSION_CC ${CMAKE_BINARY_DIR}/build_version.cc)
+ configure_file(util/build_version.cc.in ${BUILD_VERSION_CC} @ONLY)
+
+-add_library(${ROCKSDB_STATIC_LIB} STATIC ${SOURCES} ${BUILD_VERSION_CC})
+-target_include_directories(${ROCKSDB_STATIC_LIB} PUBLIC
+-  $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>)
+-target_link_libraries(${ROCKSDB_STATIC_LIB} PRIVATE
+-  ${THIRDPARTY_LIBS} ${SYSTEM_LIBS})
++if(ROCKSDB_BUILD_STATIC)
++  add_library(${ROCKSDB_STATIC_LIB} STATIC ${SOURCES} ${BUILD_VERSION_CC})
++  target_include_directories(${ROCKSDB_STATIC_LIB} PUBLIC
++    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>)
++  target_link_libraries(${ROCKSDB_STATIC_LIB} PRIVATE
++    ${THIRDPARTY_LIBS} ${SYSTEM_LIBS})
++endif()
+
+ if(ROCKSDB_BUILD_SHARED)
+   add_library(${ROCKSDB_SHARED_LIB} SHARED ${SOURCES} ${BUILD_VERSION_CC})
+@@ -1238,13 +1241,15 @@ if(NOT WIN32 OR ROCKSDB_INSTALL_ON_WINDOWS)
+
+   install(DIRECTORY "${PROJECT_SOURCE_DIR}/cmake/modules" COMPONENT devel DESTINATION ${package_config_destination})
+
+-  install(
+-    TARGETS ${ROCKSDB_STATIC_LIB}
+-    EXPORT RocksDBTargets
+-    COMPONENT devel
+-    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+-    INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+-  )
++  if(ROCKSDB_BUILD_STATIC)
++    install(
++      TARGETS ${ROCKSDB_STATIC_LIB}
++      EXPORT RocksDBTargets
++      COMPONENT devel
++      ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
++      INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
++    )
++  endif()
+
+   if(ROCKSDB_BUILD_SHARED)
+     install(

meta-oe/recipes-dbs/rocksdb/rocksdb_9.0.0.bb

@@ -17,6 +17,7 @@ SRC_URI = "git://github.com/facebook/${BPN}.git;branch=${SRCBRANCH};protocol=htt
            file://0005-Implement-timer-implementation-for-mips-platform.patch \
            file://0006-Implement-timer-for-arm-v6.patch \
            file://0007-Fix-declaration-scope-of-LE_LOAD32-in-crc32c.patch \
+           file://static_library_as_option.patch \
           "
 
 SRC_URI:append:riscv32 = " file://0001-replace-old-sync-with-new-atomic-builtin-equivalents.patch"
@@ -43,6 +44,7 @@ EXTRA_OECMAKE = "\
     -DWITH_BENCHMARK_TOOLS=OFF \
     -DWITH_TOOLS=OFF \
     -DFAIL_ON_WARNINGS=OFF \
+    -DROCKSDB_BUILD_STATIC=OFF \
 "
 
 CXXFLAGS += "${@bb.utils.contains('SELECTED_OPTIMIZATION', '-Og', '-DXXH_NO_INLINE_HINTS', '', d)}"