1Patch by Robert Scheck <robert@fedoraproject.org> for iftop <= 1.0pre4 to avoid a
2GCC 10 related build failure due to global variables in a header file with omitted
3"extern" declaration, see also: https://gcc.gnu.org/gcc-10/porting_to.html
4
5Example build failure output:
6/usr/bin/ld: ui_common.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:36: multiple definition of `screen_list'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:36: first defined here
7/usr/bin/ld: ui_common.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: multiple definition of `peaktotal'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: first defined here
8/usr/bin/ld: ui_common.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: multiple definition of `peakrecv'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: first defined here
9/usr/bin/ld: ui_common.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: multiple definition of `peaksent'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: first defined here
10/usr/bin/ld: ui_common.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:37: multiple definition of `totals'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:37: first defined here
11/usr/bin/ld: ui_common.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:40: multiple definition of `screen_hash'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:40: first defined here
12/usr/bin/ld: ui_common.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:41: multiple definition of `service_hash'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:41: first defined here
13/usr/bin/ld: ui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:36: multiple definition of `screen_list'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:36: first defined here
14/usr/bin/ld: ui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: multiple definition of `peaksent'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: first defined here
15/usr/bin/ld: ui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: multiple definition of `peakrecv'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: first defined here
16/usr/bin/ld: ui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: multiple definition of `peaktotal'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: first defined here
17/usr/bin/ld: ui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:37: multiple definition of `totals'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:37: first defined here
18/usr/bin/ld: ui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:40: multiple definition of `screen_hash'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:40: first defined here
19/usr/bin/ld: ui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:41: multiple definition of `service_hash'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:41: first defined here
20/usr/bin/ld: tui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:36: multiple definition of `screen_list'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:36: first defined here
21/usr/bin/ld: tui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:37: multiple definition of `totals'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:37: first defined here
22/usr/bin/ld: tui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: multiple definition of `peaksent'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: first defined here
23/usr/bin/ld: tui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: multiple definition of `peakrecv'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: first defined here
24/usr/bin/ld: tui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: multiple definition of `peaktotal'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:38: first defined here
25/usr/bin/ld: tui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:40: multiple definition of `screen_hash'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:40: first defined here
26/usr/bin/ld: tui.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:41: multiple definition of `service_hash'; iftop.o:/builddir/build/BUILD/iftop-1.0pre4/ui_common.h:41: first defined here
27collect2: error: ld returned 1 exit status
28
29Patch from https://src.fedoraproject.org/rpms/iftop/raw/master/f/iftop-1.0-gcc10.patch
30
31Upstream-Status: Pending
32Signed-off-by: Khem Raj <raj.khem@gmail.com>
33
34--- a/ui_common.h
35+++ b/ui_common.h
36@@ -33,12 +33,12 @@ typedef struct host_pair_line_tag {
37
38 extern options_t options;
39
40-sorted_list_type screen_list;
41-host_pair_line totals;
42-int peaksent, peakrecv, peaktotal;
43+extern sorted_list_type screen_list;
44+extern host_pair_line totals;
45+extern int peaksent, peakrecv, peaktotal;
46 extern history_type history_totals;
47-hash_type* screen_hash;
48-hash_type* service_hash;
49+extern hash_type* screen_hash;
50+extern hash_type* service_hash;
51
52 void analyse_data(void);
53 void screen_list_init(void);
54--- a/ui_common.c
55+++ b/ui_common.c
56@@ -24,6 +24,12 @@ int history_divs[HISTORY_DIVISIONS] = {1
57 char* unit_bits[UNIT_DIVISIONS] =  { "b", "Kb", "Mb", "Gb"};
58 char* unit_bytes[UNIT_DIVISIONS] =  { "B", "KB", "MB", "GB"};
59
60+sorted_list_type screen_list;
61+host_pair_line totals;
62+int peaksent, peakrecv, peaktotal;
63+hash_type* screen_hash;
64+hash_type* service_hash;
65+
66 extern hash_type* history;
67 extern int history_pos;
68 extern int history_len;
69