Fixes for compiling with -fno-common, default in GCC 10.

Taken from upstream:
https://github.com/qca/open-ath9k-htc-firmware/commit/559e3eba3b4cf103da6b8d022f3e1387278b9db8

diff --git a/target_firmware/magpie_fw_dev/target/init/app_start.c b/target_firmware/magpie_fw_dev/target/init/app_start.c
--- a/target_firmware/magpie_fw_dev/target/init/app_start.c
+++ b/target_firmware/magpie_fw_dev/target/init/app_start.c
@@ -52,6 +52,8 @@
 #define ALLOCRAM_START       ( ((unsigned int)&_fw_image_end) + 4)
 #define ALLOCRAM_SIZE        ( SYS_RAM_SZIE - ( ALLOCRAM_START - SYS_D_RAM_REGION_0_BASE) - SYS_D_RAM_STACK_SIZE)
 
+void (* _assfail_ori)(struct register_dump_s *);
+
 // support for more than 64 bytes on command pipe
 extern void usb_reg_out_patch(void);
 extern int _HIFusb_get_max_msg_len_patch(hif_handle_t handle, int pipe);
diff --git a/target_firmware/magpie_fw_dev/target/init/init.h b/target_firmware/magpie_fw_dev/target/init/init.h
--- a/target_firmware/magpie_fw_dev/target/init/init.h
+++ b/target_firmware/magpie_fw_dev/target/init/init.h
@@ -46,7 +46,7 @@
 void AR6002_fatal_exception_handler_patch(CPU_exception_frame_t *exc_frame);
 void exception_reset(struct register_dump_s *dump);
 
-void (* _assfail_ori)(struct register_dump_s *);
+extern void (* _assfail_ori)(struct register_dump_s *);
 void HTCMsgRecvHandler_patch(adf_nbuf_t hdr_buf, adf_nbuf_t buffer, void *context);
 void HTCControlSvcProcessMsg_patch(HTC_ENDPOINT_ID EndpointID, adf_nbuf_t hdr_buf,
 				   adf_nbuf_t pBuffers, void *arg);
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<tr><td><span title='2020-09-16 16:04:01 +0200'>2020-09-16</span></td><td><a href='/guix/commit/tests/guix-repl.sh?id=d7f7ed39be3be926b3c46c0ea15d416c593ef61f'>repl: Look for script files in (getcwd).</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/43331&gt;.

* guix/scripts/repl.scm (guix-repl): Replace "." by (getcwd)
* tests/guix-repl.sh: Add test.

Co-authored-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Konrad Hinsen</td></tr>
<tr><td><span title='2020-06-14 23:02:36 +0200'>2020-06-14</span></td><td><a href='/guix/commit/tests/guix-repl.sh?id=c924e541390f9595d819edc33c19d979917c15ec'>guix repl: Add script execution.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/repl.scm: Add filename options for script execution.
* doc/guix.texi (Invoking guix repl): Document it.
* tests/guix-repl.sh: Test it.
* Makefile.am: (SH_TESTS): Add it.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Konrad Hinsen</td></tr>