Fix some warnings found by higher warning levels than -Wall.

4 files changed, 9 insertions, 6 deletions

diff --git a/libdimension-python/Makefile.am b/libdimension-python/Makefile.am
index 7070b70..a4b28ad 100644
--- a/libdimension-python/Makefile.am
+++ b/libdimension-python/Makefile.am
@@ -39,6 +39,9 @@ wrapper_la_SOURCES = dimension.c                                               \
 wrapper_la_LDFLAGS = -avoid-version -module
 wrapper_la_LIBADD  = $(top_builddir)/libdimension/libdimension.la
 
+dimension.$(OBJEXT): CFLAGS += -Wno-shadow -Wno-sign-compare
+dimension.lo: CFLAGS += -Wno-shadow -Wno-sign-compare
+
 EXTRA_DIST = dimension.pyx                                                     \
              dimension.pxd
 
diff --git a/libdimension/png.c b/libdimension/png.c
index 62f0fcd..cc8b34f 100644
--- a/libdimension/png.c
+++ b/libdimension/png.c
@@ -181,8 +181,8 @@ dmnsn_png_write_canvas_thread(void *ptr)
     if (i->optimizer_fn == dmnsn_rgba16_optimizer_fn) {
       for (size_t y = 0; y < height; ++y) {
         /* Invert the rows.  PNG coordinates are fourth quadrant. */
-        uint16_t *row = (uint16_t *)i->ptr + 4*(height - y - 1)*width;
-        png_write_row(png_ptr, (png_bytep)row);
+        uint16_t *row_opt = (uint16_t *)i->ptr + 4*(height - y - 1)*width;
+        png_write_row(png_ptr, (png_bytep)row_opt);
         dmnsn_future_increment(payload->future);
       }
 
diff --git a/libdimension/profile.c b/libdimension/profile.c
index fcbb423..308c8fb 100644
--- a/libdimension/profile.c
+++ b/libdimension/profile.c
@@ -125,12 +125,12 @@ dmnsn_expect(bool result, bool expected, const char *func, const char *file,
       ++branch->predicted;
     }
   } else {
-    dmnsn_branch branch = {
+    dmnsn_branch new_branch = {
       .location  = dmnsn_strdup(key),
       .predicted = (result == expected) ? 1 : 0,
       .branches  = 1
     };
-    dmnsn_dictionary_insert(thread_profile, key, &branch);
+    dmnsn_dictionary_insert(thread_profile, key, &new_branch);
   }
 
   return result;
diff --git a/libdimension/tests/unit-test.c b/libdimension/tests/unit-test.c
index 56908aa..2ba3baf 100644
--- a/libdimension/tests/unit-test.c
+++ b/libdimension/tests/unit-test.c
@@ -75,7 +75,7 @@ dmnsn_add_test_cases(void *ptr)
 }
 
 Suite *
-dmnsn_test_suite()
+dmnsn_test_suite(void)
 {
   dmnsn_suite = suite_create("Dimension");
 
@@ -87,7 +87,7 @@ dmnsn_test_suite()
 }
 
 int
-main()
+main(void)
 {
   /* Treat warnings as errors for tests */
   dmnsn_die_on_warnings(true);