Fixed printf-style format checks on non-MinGW flavors. (#4183, #3592)

docs/CHANGELOG.txt

@@ -37,6 +37,7 @@ HOW TO UPDATE?
 
 Other Changes:
 - TabBar: Fixed using more than 32 KB-worth of tab names. (#4176)
+- Fixed printf-style format checks on non-MinGW flavors. (#4183, #3592)
 - Demo: Fixed requirement in 1.83 to link with imgui_demo.cpp if IMGUI_DISABLE_METRICS_WINDOW is not set. (#4171)
   Normally the right way to disable compiling the demo is to set IMGUI_DISABLE_DEMO_WINDOWS, but we want to avoid
   implying that the file is required.

docs/README.md

@@ -199,7 +199,7 @@ Ongoing Dear ImGui development is currently financially supported by users and p
 - [Blizzard](https://careers.blizzard.com/en-us/openings/engineering/all/all/all/1), [Google](https://github.com/google/filament), [Nvidia](https://developer.nvidia.com/nvidia-omniverse)
 
 *Double-chocolate and Salty caramel sponsors*
-- [Activision](https://careers.activision.com/c/programmingsoftware-engineering-jobs), [Aras Pranckevičius](https://aras-p.info), [Arkane Studios](https://www.arkane-studios.com), [Framefield](http://framefield.com), [Grinding Gear Games](https://www.grindinggear.com), [Kylotonn](https://www.kylotonn.com), [Next Level Games](https://www.nextlevelgames.com), [RAD Game Tools](http://www.radgametools.com/), [O-Net Communications (USA)](http://en.o-netcom.com), [Supercell](https://supercell.com), [Ubisoft](https://montreal.ubisoft.com/en/ubisoft-sponsors-user-interface-library-for-c-dear-imgui)
+- [Activision](https://careers.activision.com/c/programmingsoftware-engineering-jobs), [Adobe](https://www.adobe.com/products/medium.html), [Aras Pranckevičius](https://aras-p.info), [Arkane Studios](https://www.arkane-studios.com), [Framefield](http://framefield.com), [Grinding Gear Games](https://www.grindinggear.com), [Kylotonn](https://www.kylotonn.com), [Next Level Games](https://www.nextlevelgames.com), [RAD Game Tools](http://www.radgametools.com/), [O-Net Communications (USA)](http://en.o-netcom.com), [Supercell](https://supercell.com), [Ubisoft](https://montreal.ubisoft.com/en/ubisoft-sponsors-user-interface-library-for-c-dear-imgui)
 
 Please see [detailed list of Dear ImGui supporters](https://github.com/ocornut/imgui/wiki/Sponsors) for past sponsors.
 From November 2014 to December 2019, ongoing development has also been financially supported by its users on Patreon and through individual donations.

imgui.h

@@ -89,12 +89,12 @@ Index of this file:
 #endif
 
 // Helper Macros - IM_FMTARGS, IM_FMTLIST: Apply printf-style warnings to our formatting functions.
-#if !defined(IMGUI_USE_STB_SPRINTF) && defined(__clang__)
-#define IM_FMTARGS(FMT)             __attribute__((format(printf, FMT, FMT+1)))
-#define IM_FMTLIST(FMT)             __attribute__((format(printf, FMT, 0)))
-#elif !defined(IMGUI_USE_STB_SPRINTF) && defined(__GNUC__) && defined(__MINGW32__)
+#if !defined(IMGUI_USE_STB_SPRINTF) && defined(__MINGW32__)
 #define IM_FMTARGS(FMT)             __attribute__((format(gnu_printf, FMT, FMT+1)))
 #define IM_FMTLIST(FMT)             __attribute__((format(gnu_printf, FMT, 0)))
+#elif !defined(IMGUI_USE_STB_SPRINTF) && (defined(__clang__) || defined(__GNUC__))
+#define IM_FMTARGS(FMT)             __attribute__((format(printf, FMT, FMT+1)))
+#define IM_FMTLIST(FMT)             __attribute__((format(printf, FMT, 0)))
 #else
 #define IM_FMTARGS(FMT)
 #define IM_FMTLIST(FMT)