| # - Try to find libunwind |
| # Once done this will define |
| # |
| # Unwind_FOUND - system has libunwind |
| # unwind::unwind - cmake target for libunwind |
| |
| include (FindPackageHandleStandardArgs) |
| |
| find_path (Unwind_INCLUDE_DIR NAMES unwind.h libunwind.h DOC "unwind include directory") |
| find_library (Unwind_LIBRARY NAMES unwind DOC "unwind library") |
| |
| mark_as_advanced (Unwind_INCLUDE_DIR Unwind_LIBRARY) |
| |
| # Extract version information |
| if (Unwind_LIBRARY) |
| set (_Unwind_VERSION_HEADER ${Unwind_INCLUDE_DIR}/libunwind-common.h) |
| |
| if (EXISTS ${_Unwind_VERSION_HEADER}) |
| file (READ ${_Unwind_VERSION_HEADER} _Unwind_VERSION_CONTENTS) |
| |
| string (REGEX REPLACE ".*#define UNW_VERSION_MAJOR[ \t]+([0-9]+).*" "\\1" |
| Unwind_VERSION_MAJOR "${_Unwind_VERSION_CONTENTS}") |
| string (REGEX REPLACE ".*#define UNW_VERSION_MINOR[ \t]+([0-9]+).*" "\\1" |
| Unwind_VERSION_MINOR "${_Unwind_VERSION_CONTENTS}") |
| string (REGEX REPLACE ".*#define UNW_VERSION_EXTRA[ \t]+([0-9]+).*" "\\1" |
| Unwind_VERSION_PATCH "${_Unwind_VERSION_CONTENTS}") |
| |
| set (Unwind_VERSION ${Unwind_VERSION_MAJOR}.${Unwind_VERSION_MINOR}) |
| |
| if (CMAKE_MATCH_0) |
| # Third version component may be empty |
| set (Unwind_VERSION ${Unwind_VERSION}.${Unwind_VERSION_PATCH}) |
| set (Unwind_VERSION_COMPONENTS 3) |
| else (CMAKE_MATCH_0) |
| set (Unwind_VERSION_COMPONENTS 2) |
| endif (CMAKE_MATCH_0) |
| endif (EXISTS ${_Unwind_VERSION_HEADER}) |
| endif (Unwind_LIBRARY) |
| |
| # handle the QUIETLY and REQUIRED arguments and set Unwind_FOUND to TRUE |
| # if all listed variables are TRUE |
| find_package_handle_standard_args (Unwind |
| REQUIRED_VARS Unwind_INCLUDE_DIR Unwind_LIBRARY |
| VERSION_VAR Unwind_VERSION |
| ) |
| |
| if (Unwind_FOUND) |
| if (NOT TARGET unwind::unwind) |
| add_library (unwind::unwind INTERFACE IMPORTED) |
| |
| set_property (TARGET unwind::unwind PROPERTY |
| INTERFACE_INCLUDE_DIRECTORIES ${Unwind_INCLUDE_DIR} |
| ) |
| set_property (TARGET unwind::unwind PROPERTY |
| INTERFACE_LINK_LIBRARIES ${Unwind_LIBRARY} |
| ) |
| set_property (TARGET unwind::unwind PROPERTY |
| IMPORTED_CONFIGURATIONS RELEASE |
| ) |
| endif (NOT TARGET unwind::unwind) |
| endif (Unwind_FOUND) |