fmt/*.h: include tweakme.h to set SPDLOG_FMT_EXTERNAL according to system (#2923)

Signed-off-by: Marcus Müller <marcus@hostalia.de>

include/spdlog/fmt/chrono.h

@@ -7,6 +7,7 @@
 //
 // include bundled or external copy of fmtlib's chrono support
 //
+#include <spdlog/tweakme.h>
 
 #if !defined(SPDLOG_USE_STD_FORMAT)
     #if !defined(SPDLOG_FMT_EXTERNAL)

include/spdlog/fmt/compile.h

@@ -7,6 +7,7 @@
 //
 // include bundled or external copy of fmtlib's compile-time support
 //
+#include <spdlog/tweakme.h>
 
 #if !defined(SPDLOG_USE_STD_FORMAT)
     #if !defined(SPDLOG_FMT_EXTERNAL)

include/spdlog/fmt/fmt.h

@@ -9,6 +9,7 @@
 // Include a bundled header-only copy of fmtlib or an external one.
 // By default, spdlog include its own copy.
 //
+#include <spdlog/tweakme.h>
 
 #if defined(SPDLOG_USE_STD_FORMAT)  // use std::format
     #include <format>

include/spdlog/fmt/ostr.h

@@ -7,6 +7,7 @@
 //
 // include bundled or external copy of fmtlib's ostream support
 //
+#include <spdlog/tweakme.h>
 
 #if !defined(SPDLOG_USE_STD_FORMAT)
     #if !defined(SPDLOG_FMT_EXTERNAL)

include/spdlog/fmt/ranges.h

@@ -7,6 +7,7 @@
 //
 // include bundled or external copy of fmtlib's ranges support
 //
+#include <spdlog/tweakme.h>
 
 #if !defined(SPDLOG_USE_STD_FORMAT)
     #if !defined(SPDLOG_FMT_EXTERNAL)

include/spdlog/fmt/std.h

@@ -8,6 +8,7 @@
 // include bundled or external copy of fmtlib's std support (for formatting e.g.
 // std::filesystem::path, std::thread::id, std::monostate, std::variant, ...)
 //
+#include <spdlog/tweakme.h>
 
 #if !defined(SPDLOG_USE_STD_FORMAT)
     #if !defined(SPDLOG_FMT_EXTERNAL)

include/spdlog/fmt/xchar.h

@@ -7,6 +7,7 @@
 //
 // include bundled or external copy of fmtlib's xchar support
 //
+#include <spdlog/tweakme.h>
 
 #if !defined(SPDLOG_USE_STD_FORMAT)
     #if !defined(SPDLOG_FMT_EXTERNAL)