Fixed a build issue with non-Cygwin GCC under Windows.
diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index c6813ee..c103379 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -34,6 +34,7 @@
Other Changes:
+- Fixed a build issue with non-Cygwin GCC under Windows.
- Examples: OpenGL3: Fixed error condition when using the GLAD loader. (#2059, #2002). [@jiri]
diff --git a/imgui.cpp b/imgui.cpp
index 5642485..4af7604 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -1506,7 +1506,7 @@
FILE* ImFileOpen(const char* filename, const char* mode)
{
-#if defined(_WIN32) && !defined(__CYGWIN__)
+#if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__GNUC__)
// We need a fopen() wrapper because MSVC/Windows fopen doesn't handle UTF-8 filenames. Converting both strings from UTF-8 to wchar format (using a single allocation, because we can)
const int filename_wsize = ImTextCountCharsFromUtf8(filename, NULL) + 1;
const int mode_wsize = ImTextCountCharsFromUtf8(mode, NULL) + 1;
