From 7ce68c4bca7fd64c0073f1770c6b5761c03174f0 Mon Sep 17 00:00:00 2001

From: Sergei Trofimovich <slyfox@gentoo.org>

Date: Wed, 21 Mar 2018 21:30:31 +0000

Subject: [PATCH] ht: fix build failure on -funsigned-char platforms

powerpc (and arm) have 'char' == 'unsigned char' by default.

This causes build failures on c++11:

```

$ ./configure CFLAGS=-funsigned-char CXXFLAGS=-funsigned-char

$ make

g++ -DHAVE_CONFIG_H -I.   -I./analyser -I./asm -I./info -I./io/posix -I./io -I./output -I./eval -I.   -DNOMACROS -pipe -O3 -fomit-frame-pointer -Wall -fsigned-char -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64  -std=c++14 -Woverloaded-virtual -Wnon-virtual-dtor -funsigned-char -MT htcoffhd.o -MD -MP -MF .deps/htcoffhd.Tpo -c -o htcoffhd.o htcoffhd.cc

htcoffhd.cc:93:1: error: narrowing conversion of '-1' from 'int' to 'char' inside { } [-Wnarrowing]

 };

 ^

htcoffhd.cc:131:1: error: narrowing conversion of '-1' from 'int' to 'char' inside { } [-Wnarrowing]

 };

```

Use 'signed char' explicitly to maintain existing behavior.

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

---

 httag.h | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/httag.h b/httag.h

index 7f5da1c..83e5c22 100644

--- a/httag.h

+++ b/httag.h

@@ -69,7 +69,7 @@ struct ht_tag_flags {

 } PACKED;

 struct ht_tag_flags_s {

-	char bitidx;

+	signed char bitidx;

 	const char *desc;

 } PACKED;