Fix building with --enable-debug

Numerous warnings had snuck into the build, preventing ltrace from
building with --enable-debug (which uses -Wall, -Werror, and more).
This patch fixes the problems, mostly caused by -Wsign-compare.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/options.c b/options.c
index c7e3be6..74c28bd 100644
--- a/options.c
+++ b/options.c
@@ -37,7 +37,7 @@ struct options_t options = {
 };
 
 char *library[MAX_LIBRARIES];
-int library_num = 0;
+size_t library_num = 0;
 static char *progname;		/* Program name (`ltrace') */
 int opt_i = 0;			/* instruction pointer */
 int opt_r = 0;			/* print relative timestamp */