[PATCH] librtlsdr: cmake: add options to enable/disable static or shared target in build

When librtlsdr is build with an environment with static libraries, the build fails with messages like: /buildroot/librtl/output/host/lib/gcc/aarch64-buildroot-linux-uclibc/8.4.0/../../../../aarch64-buildroot-linux-uclibc/bin/ld: /buildroot/librtl/output/host/aarch64-buildroot-linux-uclibc/sysroot/usr/lib/libusb-1.0.a(libusb_1_0_la-core.o): relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `stderr' which may bind externally can not be used when making a shared object; recompile with -fPIC /buildroot/librtl/output/host/aarch64-buildroot-linux-uclibc/sysroot/usr/lib/libusb-1.0.a(libusb_1_0_la-core.o): in function `usbi_log_str': core.c:(.text+0xf8): dangerous relocation: unsupported relocation This patch add options to select if librtlsdr must be build in static mode, shared mode or both. Adapted from https://github.com/steve-m/librtlsdr/pull/46 and https://git.buildroot.net/buildroot/tree/package/librtlsdr/0001-disable_sha… Signed-off-by: Yuvaraj Patil <yuvaraj.patil(a)wipro.com> Signed-off-by: Fabrice Fontaine <fontaine.fabrice(a)gmail.com> Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou(a)trabucayre.com> --- src/CMakeLists.txt | 30 +++++++++++++++++++++--------- 1 file changed, 21 insertions(+), 9 deletions(-) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 33faee7..d82fc87 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -18,6 +18,8 @@ ######################################################################## # Setup shared library variant ######################################################################## +option(BUILD_SHARED_LIBS "Build shared library" ON) +if(BUILD_SHARED_LIBS) add_library(rtlsdr SHARED librtlsdr.c tuner_e4k.c tuner_fc0012.c tuner_fc0013.c tuner_fc2580.c tuner_r82xx.c) target_link_libraries(rtlsdr PkgConfig::LIBUSB) @@ -30,10 +32,14 @@ set_target_properties(rtlsdr PROPERTIES OUTPUT_NAME rtlsdr) set_target_properties(rtlsdr PROPERTIES SOVERSION ${MAJOR_VERSION}) set_target_properties(rtlsdr PROPERTIES VERSION ${LIBVER}) generate_export_header(rtlsdr) +list(APPEND rtlsdr_lib rtlsdr) +endif() ######################################################################## # Setup static library variant ######################################################################## +option(BUILD_STATIC_LIBS "Build static library" ON) +if(BUILD_STATIC_LIBS) add_library(rtlsdr_static STATIC librtlsdr.c tuner_e4k.c tuner_fc0012.c tuner_fc0013.c tuner_fc2580.c tuner_r82xx.c) target_link_libraries(rtlsdr_static PkgConfig::LIBUSB) @@ -47,6 +53,8 @@ if(NOT WIN32) set_target_properties(rtlsdr_static PROPERTIES OUTPUT_NAME rtlsdr) endif() generate_export_header(rtlsdr_static) +list(APPEND rtlsdr_lib rtlsdr_static) +endif() ######################################################################## # Set up Windows DLL resource files @@ -90,37 +98,37 @@ add_executable(rtl_eeprom rtl_eeprom.c) add_executable(rtl_adsb rtl_adsb.c) add_executable(rtl_power rtl_power.c) add_executable(rtl_biast rtl_biast.c) -set(INSTALL_TARGETS rtlsdr rtlsdr_static rtl_sdr rtl_tcp rtl_test rtl_fm rtl_eeprom rtl_adsb rtl_power rtl_biast) +set(INSTALL_TARGETS ${rtlsdr_lib} rtl_sdr rtl_tcp rtl_test rtl_fm rtl_eeprom rtl_adsb rtl_power rtl_biast) -target_link_libraries(rtl_sdr rtlsdr convenience_static +target_link_libraries(rtl_sdr ${rtlsdr_lib} convenience_static ${LIBUSB_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ) -target_link_libraries(rtl_tcp rtlsdr convenience_static +target_link_libraries(rtl_tcp ${rtlsdr_lib} convenience_static ${LIBUSB_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ) -target_link_libraries(rtl_test rtlsdr convenience_static +target_link_libraries(rtl_test ${rtlsdr_lib} convenience_static ${LIBUSB_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ) -target_link_libraries(rtl_fm rtlsdr convenience_static +target_link_libraries(rtl_fm ${rtlsdr_lib} convenience_static ${LIBUSB_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ) -target_link_libraries(rtl_eeprom rtlsdr convenience_static +target_link_libraries(rtl_eeprom ${rtlsdr_lib} convenience_static ${LIBUSB_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ) -target_link_libraries(rtl_adsb rtlsdr convenience_static +target_link_libraries(rtl_adsb ${rtlsdr_lib} convenience_static ${LIBUSB_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ) -target_link_libraries(rtl_power rtlsdr convenience_static +target_link_libraries(rtl_power ${rtlsdr_lib} convenience_static ${LIBUSB_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ) -target_link_libraries(rtl_biast rtlsdr convenience_static +target_link_libraries(rtl_biast ${rtlsdr_lib} convenience_static ${LIBUSB_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ) @@ -156,12 +164,16 @@ endif() ######################################################################## # Install built library files & utilities ######################################################################## +if(BUILD_SHARED_LIBS) install(TARGETS rtlsdr EXPORT RTLSDR-export LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} # .so/.dylib file ) +endif() +if(BUILD_STATIC_LIBS) install(TARGETS rtlsdr_static EXPORT RTLSDR-export ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} # .so/.dylib file ) +endif() install(TARGETS rtl_sdr rtl_tcp rtl_test rtl_fm rtl_eeprom rtl_adsb rtl_power DESTINATION ${CMAKE_INSTALL_BINDIR} ) -- 2.26.2