don't build bundled libfmt, we use it in header-only mode anyway

cmake/libfmt.cmake

@@ -7,9 +7,6 @@ SET(WITH_LIBFMT "auto" CACHE STRING
 MACRO(BUNDLE_LIBFMT)
   SET(dir "${CMAKE_BINARY_DIR}/extra/libfmt")
   SET(LIBFMT_INCLUDE_DIR "${dir}/src/libfmt/include")
-  ADD_LIBRARY(fmt STATIC IMPORTED GLOBAL)
-  SET(file ${dir}/src/libfmt-build/${CMAKE_CFG_INTDIR}/${CMAKE_STATIC_LIBRARY_PREFIX}fmt${CMAKE_STATIC_LIBRARY_SUFFIX})
-  SET_TARGET_PROPERTIES(fmt PROPERTIES IMPORTED_LOCATION ${file})
 
   ExternalProject_Add(
     libfmt
@@ -17,34 +14,22 @@ MACRO(BUNDLE_LIBFMT)
     URL      "https://github.com/fmtlib/fmt/archive/refs/tags/8.0.1.zip"
     URL_MD5  e77873199e897ca9f780479ad68e25b1
     INSTALL_COMMAND ""
-    CMAKE_ARGS
-      "-DCMAKE_POSITION_INDEPENDENT_CODE=ON"
-      "-DBUILD_SHARED_LIBS=OFF"
-      "-DFMT_DEBUG_POSTFIX="
-      "-DFMT_DOC=OFF"
-      "-DFMT_TEST=OFF"
-      "-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}"
-      "-DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS} ${PIC_FLAG}"
-      "-DCMAKE_CXX_FLAGS_DEBUG=${CMAKE_CXX_FLAGS_DEBUG}"
-      "-DCMAKE_CXX_FLAGS_RELWITHDEBINFO=${CMAKE_CXX_FLAGS_RELWITHDEBINFO}"
-      "-DCMAKE_CXX_FLAGS_RELEASE=${CMAKE_CXX_FLAGS_RELEASE}"
-      "-DCMAKE_CXX_FLAGS_MINSIZEREL=${CMAKE_CXX_FLAGS_MINSIZEREL}"
-      "-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"
-    BUILD_BYPRODUCTS ${file}
+    CONFIGURE_COMMAND ""
+    BUILD_COMMAND ""
+    BUILD_BYPRODUCTS ${LIBFMT_INCLUDE_DIR}/fmt/format-inl.h
   )
-  SET_TARGET_PROPERTIES(fmt PROPERTIES EXCLUDE_FROM_ALL TRUE)
 ENDMACRO()
 
 MACRO (CHECK_LIBFMT)
   IF(WITH_LIBFMT STREQUAL "system" OR WITH_LIBFMT STREQUAL "auto")
-    SET(CMAKE_REQUIRED_LIBRARIES fmt)
     CHECK_CXX_SOURCE_COMPILES(
-    "#include <fmt/core.h>
+    "#define FMT_STATIC_THOUSANDS_SEPARATOR ','
+     #define FMT_HEADER_ONLY 1
+     #include <fmt/format-inl.h>
      #include <iostream>
      int main() {
        std::cout << fmt::format(\"The answer is {}.\", 42);
      }" HAVE_SYSTEM_LIBFMT)
-    SET(CMAKE_REQUIRED_LIBRARIES)
   ENDIF()
   IF(NOT HAVE_SYSTEM_LIBFMT OR WITH_LIBFMT STREQUAL "bundled")
     IF (WITH_LIBFMT STREQUAL "system")

libmysqld/CMakeLists.txt

@@ -396,7 +396,7 @@ IF(NOT DISABLE_SHARED)
     # libmysqld
     SET_TARGET_PROPERTIES(libmysqld PROPERTIES CLEAN_DIRECT_OUTPUT 1)
     SET_TARGET_PROPERTIES(mysqlserver PROPERTIES CLEAN_DIRECT_OUTPUT 1)
-    TARGET_LINK_LIBRARIES(mysqlserver LINK_PRIVATE tpool fmt ${CRC32_LIBRARY})
+    TARGET_LINK_LIBRARIES(mysqlserver LINK_PRIVATE tpool ${CRC32_LIBRARY})
     IF(LIBMYSQLD_SO_EXTRA_LIBS)
        TARGET_LINK_LIBRARIES(libmysqld LINK_PRIVATE ${LIBMYSQLD_SO_EXTRA_LIBS})
     ENDIF()

sql/CMakeLists.txt

@@ -208,7 +208,7 @@ MAYBE_DISABLE_IPO(sql)
 DTRACE_INSTRUMENT(sql)
 TARGET_LINK_LIBRARIES(sql
   mysys mysys_ssl dbug strings vio pcre2-8
-  tpool fmt
+  tpool
   ${LIBWRAP} ${LIBCRYPT} ${CMAKE_DL_LIBS} ${CMAKE_THREAD_LIBS_INIT}
   ${SSL_LIBRARIES}
   ${LIBSYSTEMD})
@@ -391,6 +391,10 @@ ADD_CUSTOM_TARGET(
         ${CMAKE_CURRENT_BINARY_DIR}/yy_oracle.cc
 )
 
+IF(TARGET libfmt)
+  ADD_DEPENDENCIES(GenServerSource libfmt)
+ENDIF()
+
 IF(WIN32 OR HAVE_DLOPEN AND NOT DISABLE_SHARED)
   ADD_LIBRARY(udf_example MODULE udf_example.c udf_example.def)
   SET_TARGET_PROPERTIES(udf_example PROPERTIES PREFIX "")