Add libfmt 11.1.4 as dependency

Author: Ozaq

CMakeLists.txt

@@ -346,6 +346,9 @@ if( NOT ${CMAKE_USE_PTHREADS_INIT} )
     message( FATAL_ERROR "Only pthreads supported - thread library found is [${THREADS_LIBRARIES}]" )
 endif()
 
+### vendored dependencies
+add_subdirectory(third-party)
+
 ############################################################################################
 # sources
 

src/eckit/CMakeLists.txt

@@ -945,6 +945,7 @@ ecbuild_add_library(
               "${CURL_LIBRARIES}"
               "${AIO_LIBRARIES}"
               "${RADOS_LIBRARIES}"
+              fmt::fmt
 
           PUBLIC_LIBS
               ${CMATH_LIBRARIES}

third-party/CMakeLists.txt

@@ -0,0 +1,7 @@
+set(FMT_INSTALL ON)
+set(FMT_SYSTEM_HEADERS ON)
+add_subdirectory(fmt-11.1.4)
+set_target_properties(fmt PROPERTIES
+    POSITION_INDEPENDENT_CODE ON
+    LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib
+)

third-party/fmt-11.1.4/.clang-format

@@ -0,0 +1,14 @@
+# Run manually to reformat a file:
+# clang-format -i --style=file <file>
+Language: Cpp
+BasedOnStyle: Google
+IndentPPDirectives: AfterHash
+IndentCaseLabels: false
+AlwaysBreakTemplateDeclarations: false
+DerivePointerAlignment: false
+AllowShortCaseLabelsOnASingleLine: true
+AlignConsecutiveShortCaseStatements:
+  Enabled: true
+  AcrossEmptyLines: true
+  AcrossComments: true
+  AlignCaseColons: false

third-party/fmt-11.1.4/.gitignore

@@ -0,0 +1,21 @@
+*.a
+*.so*
+*.xcodeproj
+*~
+.vscode/
+.vs/
+/CMakeScripts
+/Testing
+/_CPack_Packages
+/install_manifest.txt
+CMakeCache.txt
+CMakeFiles
+CPack*.cmake
+CTestTestfile.cmake
+FMT.build
+Makefile
+bin/
+build/
+cmake_install.cmake
+fmt-*.cmake
+fmt.pc