comgt: drop the use of the non-standard XCASE termios flag (#18186)

Signed-off-by: Felix Fietkau <[email protected]>

SVN-Revision: 43014

package/network/utils/comgt/patches/003-no_XCASE.patch

@@ -0,0 +1,20 @@
+--- a/comgt.c
++++ b/comgt.c
+@@ -1281,7 +1281,7 @@ void opengt(void) {
+   parity=stbuf.c_cflag & (PARENB | PARODD);
+   stbuf.c_iflag &= ~(IGNCR | ICRNL | IUCLC | INPCK | IXON | IXANY | IGNPAR );
+   stbuf.c_oflag &= ~(OPOST | OLCUC | OCRNL | ONLCR | ONLRET);
+-  stbuf.c_lflag &= ~(ICANON | XCASE | ECHO | ECHOE | ECHONL);
++  stbuf.c_lflag &= ~(ICANON | ECHO | ECHOE | ECHONL);
+   stbuf.c_lflag &= ~(ECHO | ECHOE);
+   stbuf.c_cc[VMIN] = 1;
+   stbuf.c_cc[VTIME] = 0;
+@@ -1336,7 +1336,7 @@ void opendevice(void) {
+   parity=stbuf.c_cflag & (PARENB | PARODD);
+   stbuf.c_iflag &= ~(IGNCR | ICRNL | IUCLC | INPCK | IXON | IXANY | IGNPAR );
+   stbuf.c_oflag &= ~(OPOST | OLCUC | OCRNL | ONLCR | ONLRET);
+-  stbuf.c_lflag &= ~(ICANON | XCASE | ECHO | ECHOE | ECHONL);
++  stbuf.c_lflag &= ~(ICANON | ECHO | ECHOE | ECHONL);
+   stbuf.c_lflag &= ~(ECHO | ECHOE);
+   stbuf.c_cc[VMIN] = 1;
+   stbuf.c_cc[VTIME] = 0;