Fix some more simple conversion "errors"

None of these warn at the normal "-Wall -Werror" level, but casts do occur
that we are fine with. Make them explicit to silence some warnings when
using "-Wconversion".

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index 1bf2e87f..3d4b1df4 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -350,8 +350,9 @@ int _alpm_depcmp(pmpkg_t *pkg, pmdepend_t *dep)
 			/* This is a bit tricker than the old code for performance reasons. To
 			 * prevent the need to copy and duplicate strings, strncmp only the name
 			 * portion if they are the same length, since there is a version and
-			 * operator in play here. */
-			size_t namelen = provver - provision;
+			 * operator in play here. Cast is to silence sign conversion warning;
+			 * we know provver >= provision if we are here. */
+			size_t namelen = (size_t)(provver - provision);
 			provver += 1;
 			satisfy = (strlen(dep->name) == namelen
 					&& strncmp(provision, dep->name, namelen) == 0