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	liblmdb: fix warnings in lmdb-tools.
Change-Id: I1a1de4bcb9ce9b27f9278f74535e6e83de25bad0
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							@@ -18,7 +18,7 @@
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# read mdb.c before changing any of them.
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#
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CC	= gcc
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W	= -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized
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W	= -Wall -Werror -Wno-unused-parameter
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THREADS = -pthread
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XCFLAGS ?= $(CFLAGS)
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OPT	= -O2 -g
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@@ -30,7 +30,7 @@ sighandle(int sig)
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int main(int argc,char * argv[])
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{
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	int rc;
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	MDB_env *env;
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	MDB_env *env = NULL;
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	const char *progname = argv[0], *act;
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	unsigned flags = MDB_RDONLY;
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	unsigned cpflags = 0;
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@@ -134,6 +134,10 @@ int main(int argc, char *argv[])
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			mei.me_tail_txnid, mei.me_tail_txnid - mei.me_last_txnid);
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		printf("  Max readers: %u\n", mei.me_maxreaders);
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		printf("  Number of readers used: %u\n", mei.me_numreaders);
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	} else {
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		/* LY: zap warnings from gcc */
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		memset(&mst, 0, sizeof(mst));
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		memset(&mei, 0, sizeof(mei));
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	}
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	if (rdrinfo) {
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