linux branch: add libiberty dependency to xenia-cpu

From PR
xenia-project/xenia#1405

Author: bwrsandman

.travis.yml

@@ -12,6 +12,7 @@ matrix:
           - libgtk-3-dev
           - libvulkan-dev
           - llvm-7-dev
+          - libiberty-dev
     compiler: clang
     env:
      - CMAKE_FLAGS="-DXENIA_LINK_SHARED=OFF -DPython3_EXECUTABLE=/usr/bin/python3"
@@ -25,6 +26,7 @@ matrix:
           - libgtk-3-dev
           - libvulkan-dev
           - llvm-7-dev
+          - libiberty-dev
     compiler: clang
     env:
      - CMAKE_FLAGS="-DXENIA_LINK_SHARED=ON -DPython3_EXECUTABLE=/usr/bin/python3"

cmake/xenia-cpu.cmake

@@ -24,6 +24,9 @@ add_library(${NAME} ${LIBRARY_TYPE}
   ${${NAME}_COMPILER_PASSES_SOURCES}
   ${${NAME}_HIR_SOURCES}
   ${${NAME}_PPC_SOURCES})
+if (UNIX)
+  find_library(IBERTY_LIBRARY iberty REQUIRED)
+endif()
 target_include_directories(${NAME}
   PRIVATE
     $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/xenia/src>
@@ -34,5 +37,5 @@ target_include_directories(${NAME}
     $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/xenia/third_party>)
 find_package(LLVM REQUIRED CONFIG)
 llvm_map_components_to_libnames(llvm_libs support)
-target_link_libraries(${NAME} PRIVATE mspack ${llvm_libs})
+target_link_libraries(${NAME} PRIVATE mspack ${llvm_libs} ${IBERTY_LIBRARY})
 set_target_properties(${NAME} PROPERTIES FOLDER "xenia")