fix build with gcc 10
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Define curr_state as extern in nanocom.h to avoid the following build
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failure with gcc 10 (which defaults to -fno-common):
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/home/buildroot/autobuild/instance-3/output-1/host/lib/gcc/arm-buildroot-linux-gnueabihf/10.2.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: /tmp/ccLQeiek.o:(.bss+0x7c): multiple definition of `curr_state'; /tmp/ccse155z.o:(.bss+0x0): first defined here
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Fixes:
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- http://autobuild.buildroot.org/results/4af4710cb9bbb1bc770b9824339dd7dbf8a80b05
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Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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diff -Naurp nanocom-1.0.orig/nanocom.c nanocom-1.0/nanocom.c
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--- nanocom-1.0.orig/nanocom.c 2020-09-04 14:50:15.973320870 +0200
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+++ nanocom-1.0/nanocom.c 2020-09-04 14:53:49.429325087 +0200
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@@ -20,6 +20,8 @@ Based upon microcom by Anca and Lucian J
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#include "nanocom.h"
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+state curr_state;
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+
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int crnl_mapping; //0 - no mapping, 1 mapping
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char device[MAX_DEVICE_NAME]; /* serial device name */
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diff -Naurp nanocom-1.0.orig/nanocom.h nanocom-1.0/nanocom.h
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--- nanocom-1.0.orig/nanocom.h 2020-09-04 14:50:15.973320870 +0200
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+++ nanocom-1.0/nanocom.h 2020-09-04 14:51:12.269321982 +0200
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@@ -73,7 +73,7 @@ typedef struct {
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char echo_type; /*r for remote, l for local and n for none*/
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} state;
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-state curr_state;
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+extern state curr_state;
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#endif /* NANOCOM_H */
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