Add an installed CMake config.

Does not perform transitive link to boringssl though.

Author: rpavlik

src/liblsquic/CMakeLists.txt

@@ -130,9 +130,22 @@ ELSE()
   add_library(lsquic STATIC ${lsquic_STAT_SRCS})
 ENDIF()
 
+target_include_directories(
+    lsquic PUBLIC $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/lsquic>)
+
 install(TARGETS lsquic
     EXPORT lsquic-targets
     LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
     ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
 )
 
+configure_file(lsquic-config.cmake ${CMAKE_CURRENT_BINARY_DIR}/lsquic-config.cmake @ONLY)
+install(
+    FILES ${CMAKE_CURRENT_BINARY_DIR}/lsquic-config.cmake
+    DESTINATION share/lsquic)
+
+install(
+    EXPORT lsquic-targets
+    DESTINATION share/lsquic
+    NAMESPACE lsquic::
+    FILE lsquic-targets.cmake)

src/liblsquic/lsquic-config.cmake

@@ -0,0 +1 @@
+include("${CMAKE_CURRENT_LIST_DIR}/lsquic-targets.cmake")