Merge pull request tomojitakasu#604 from sean10776/fix-pthread-link-and-ignore-build

Fix missing pthread linkage in CMake and ignore build directory

Author: JensReimann

.gitignore

@@ -27,6 +27,7 @@ CMakeUserPresets.json
 **/compile_commands.json
 CPackConfig.cmake
 CPackSourceConfig.cmake
+build/
 
 # QT
 .qt/

src/CMakeLists.txt

@@ -49,7 +49,7 @@ if(WIN32)
   target_link_libraries(rtklib wsock32 ws2_32 winmm)
   add_definitions(-DWIN_DLL)
 else()
-  target_link_libraries(rtklib m)
+  target_link_libraries(rtklib m pthread)
   add_definitions(-DDLL)
 endif()
 install(TARGETS rtklib RUNTIME DESTINATION lib)