Manually compile fmt

CMakeLists.txt

@@ -26,7 +26,7 @@ add_subdirectory("examples" EXCLUDE_FROM_ALL)
 add_subdirectory("libs")
 add_subdirectory("test")
 
-target_link_libraries(amdis PUBLIC fmt::fmt)
+target_link_libraries(amdis PUBLIC fmt)
 
 if (MTL_FOUND)
   target_link_libraries(amdis PUBLIC MTL::MTL)

libs/CMakeLists.txt

@@ -9,9 +9,13 @@ FetchContent_Declare(fmt                              # name of the content
 FetchContent_GetProperties(fmt)
 if(NOT fmt_POPULATED)
   FetchContent_Populate(fmt)
-  add_subdirectory(${fmt_SOURCE_DIR} ${fmt_BINARY_DIR})
 endif()
-install(TARGETS fmt EXPORT amdis-targets
-          LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-          ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-          PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/fmt")
+
+dune_add_library(fmt SOURCES ${fmt_SOURCE_DIR}/src/format.cc)
+target_compile_features(fmt PRIVATE cxx_std_17)
+target_include_directories(fmt PUBLIC
+  $<BUILD_INTERFACE:${fmt_SOURCE_DIR}/include>)
+
+file(GLOB FMT_HEADERS ${fmt_SOURCE_DIR}/include/fmt/*.h)
+install(FILES ${FMT_HEADERS}
+  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/fmt)