1 files changed, 69 insertions, 0 deletions
diff --git a/externals/find-modules/Findfmt.cmake b/externals/find-modules/Findfmt.cmake
new file mode 100644
index 000000000..8ba51cbea
--- /dev/null
+++ b/externals/find-modules/Findfmt.cmake
@@ -0,0 +1,69 @@
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_fmt QUIET fmt)
+
+find_path(fmt_INCLUDE_DIR
+  NAMES format.h
+  PATHS ${PC_fmt_INCLUDE_DIRS} ${CONAN_INCLUDE_DIRS_fmt}
+  PATH_SUFFIXES fmt
+)
+
+find_library(fmt_LIBRARY
+  NAMES fmt
+  PATHS ${PC_fmt_LIBRARY_DIRS} ${CONAN_LIB_DIRS_fmt}
+)
+
+if(fmt_INCLUDE_DIR)
+  set(_fmt_version_file "${fmt_INCLUDE_DIR}/core.h")
+  if(NOT EXISTS "${_fmt_version_file}")
+    set(_fmt_version_file "${fmt_INCLUDE_DIR}/format.h")
+  endif()
+  if(EXISTS "${_fmt_version_file}")
+    # parse "#define FMT_VERSION 60200" to 6.2.0
+    file(STRINGS "${_fmt_version_file}" fmt_VERSION_LINE
+      REGEX "^#define[ \t]+FMT_VERSION[ \t]+[0-9]+$")
+    string(REGEX REPLACE "^#define[ \t]+FMT_VERSION[ \t]+([0-9]+)$"
+      "\\1" fmt_VERSION "${fmt_VERSION_LINE}")
+    foreach(ver "fmt_VERSION_PATCH" "fmt_VERSION_MINOR" "fmt_VERSION_MAJOR")
+      math(EXPR ${ver} "${fmt_VERSION} % 100")
+      math(EXPR fmt_VERSION "(${fmt_VERSION} - ${${ver}}) / 100")
+    endforeach()
+    set(fmt_VERSION
+      "${fmt_VERSION_MAJOR}.${fmt_VERSION_MINOR}.${fmt_VERSION_PATCH}")
+  endif()
+  unset(_fmt_version_file)
+  unset(fmt_VERSION_LINE)
+  unset(fmt_VERSION_MAJOR)
+  unset(fmt_VERSION_MINOR)
+  unset(fmt_VERSION_PATCH)
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(fmt
+  FOUND_VAR fmt_FOUND
+  REQUIRED_VARS
+    fmt_LIBRARY
+    fmt_INCLUDE_DIR
+    fmt_VERSION
+  VERSION_VAR fmt_VERSION
+)
+
+if(fmt_FOUND)
+  set(fmt_LIBRARIES ${fmt_LIBRARY})
+  set(fmt_INCLUDE_DIRS ${fmt_INCLUDE_DIR})
+  set(fmt_DEFINITIONS ${PC_fmt_CFLAGS_OTHER})
+endif()
+
+if(fmt_FOUND AND NOT TARGET fmt::fmt)
+  add_library(fmt::fmt UNKNOWN IMPORTED)
+  set_target_properties(fmt::fmt PROPERTIES
+    IMPORTED_LOCATION "${fmt_LIBRARY}"
+    INTERFACE_COMPILE_OPTIONS "${PC_fmt_CFLAGS_OTHER}"
+    INTERFACE_INCLUDE_DIRECTORIES "${fmt_INCLUDE_DIR}"
+  )
+endif()
+
+mark_as_advanced(
+    fmt_INCLUDE_DIR
+    fmt_LIBRARY
+)