Only add -D__USE_MINGW_ANSI_STDIO=1 for MINGW64/32

steveicarus · Aug 17, 2024 · 6f743cd · 6f743cd
1 parent cba2417
commit 6f743cd
Showing 1 changed file with 10 additions and 2 deletions.
diff --git a/configure.ac b/configure.ac
@@ -240,8 +240,16 @@ case "${host}" in
 	CFLAGS="-mieee $CFLAGS"
 	;;
     *-*-mingw*)
-	CXXFLAGS="-D__USE_MINGW_ANSI_STDIO=1 $CXXFLAGS"
-	CFLAGS="-D__USE_MINGW_ANSI_STDIO=1 $CFLAGS"
+	# The MINGW64/32 environments link to MSVCRT which has stdio issues
+	# so use the slower, but functional mingw versions for this case.
+	case "${MSYSTEM}" in
+	    MINGW*)
+		CXXFLAGS="-D__USE_MINGW_ANSI_STDIO=1 $CXXFLAGS"
+		CFLAGS="-D__USE_MINGW_ANSI_STDIO=1 $CFLAGS"
+		AC_MSG_NOTICE([${MSYSTEM} needs -D__USE_MINGW_ANSI_STDIO=1])
+		;;
+
+	esac
 	;;
 esac