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44 lines
1.4 KiB
Diff
44 lines
1.4 KiB
Diff
From: Sven Joachim <svenjoac@gmx.de>
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Date: Wed, 1 Nov 2017 09:03:28 +0100
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Subject: Fix include/stdio.h C++ incompatibility
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I have seen the following error when building bsdgames with
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libncurses6:
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In file included from /usr/include/wchar.h:36:0,
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from /usr/include/curses.h:400,
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from dab/box.cc:48:
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include/stdio.h:38:14: error: conflicting declaration of 'char* fgetln(FILE*, size_t*)' with 'C' linkage
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extern char *fgetln(FILE *stream, size_t *len);
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^~~~~~
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In file included from /usr/include/curses.h:183:0,
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from dab/box.cc:48:
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include/stdio.h:38:14: note: previous declaration with 'C++' linkage
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extern char *fgetln(FILE *stream, size_t *len);
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^~~~~~
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GNUmakefile:298: recipe for target 'dab/box.o' failed
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Declaring fgetln as extern "C" fixes this. The patch has been taken
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from the Fedora bsd-games package, see
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https://src.fedoraproject.org/rpms/bsd-games/blob/ac743bec7031199ec6fc09b6eb3760ffcfcfd277/f/bsd-games-2.17-stdio-c++.patch.
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---
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include/stdio.h | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/include/stdio.h b/include/stdio.h
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index 32a4b71..b1ac049 100644
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--- a/include/stdio.h
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+++ b/include/stdio.h
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@@ -35,5 +35,11 @@
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#include_next <stdio.h>
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#ifndef HAVE_fgetln
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+#ifdef __cplusplus
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+extern "C" {
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+#endif
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extern char *fgetln(FILE *stream, size_t *len);
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+#ifdef __cplusplus
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+}
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+#endif
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#endif
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