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Avoid compilation warnings with GCC 7 on MS-Windows

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* src/w32term.c (w32_setup_relief_color, construct_mouse_click)
(w32_read_socket): Initialize variables to shut up bogus
compilation warnings from GCC 7.
* src/unexw32.c (COPY_CHUNK, COPY_PROC_CHUNK): Cast to DWORD_PTR
to avoid compiler warnings about printing signed values using %x
format spec.
* src/dispnew.c (adjust_glyph_matrix): Add eassert to avoid
compiler warning about possible NULL pointer dereference.
* src/lisp.h (pI): Tweak the definition some more for MinGW64.
This commit is contained in:
Eli Zaretskii 2017-09-15 11:46:37 +03:00
parent 025e216566
commit 015172d1ba
4 changed files with 11 additions and 8 deletions
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1
src/dispnew.c
View file

@ -386,6 +386,7 @@ adjust_glyph_matrix (struct window *w, struct glyph_matrix *matrix, int x, int y
Do nothing if MATRIX' size, position, vscroll, and marginal areas
haven't changed. This optimization is important because preserving
the matrix means preventing redisplay. */
eassert (w != NULL || matrix->pool != NULL);
if (matrix->pool == NULL)
{
left = margin_glyphs_to_reserve (w, dim.width, w->left_margin_cols);

3
src/lisp.h
View file

@ -101,7 +101,8 @@ enum { EMACS_INT_WIDTH = LLONG_WIDTH, EMACS_UINT_WIDTH = ULLONG_WIDTH };
which will cause a warning for %lld etc. */
# if defined __MINGW32__ \
&& (!defined __USE_MINGW_ANSI_STDIO \
|| !(GNUC_PREREQ (6, 0, 0) && __MINGW32_MAJOR_VERSION >= 5))
|| (!defined MINGW_W64 \
&& !(GNUC_PREREQ (6, 0, 0) && __MINGW32_MAJOR_VERSION >= 5)))
# define pI "I64"
# else /* ! MinGW */
# define pI "ll"

6
src/unexw32.c
View file

@ -500,8 +500,8 @@ copy_executable_and_dump_data (file_data *p_infile,
if (verbose) \
{ \
printf ("%s\n", (message)); \
printf ("\t0x%"pDWP" Offset in input file.\n", s - p_infile->file_base); \
printf ("\t0x%"pDWP" Offset in output file.\n", dst - p_outfile->file_base); \
printf ("\t0x%"pDWP" Offset in input file.\n", (DWORD_PTR)(s - p_infile->file_base)); \
printf ("\t0x%"pDWP" Offset in output file.\n", (DWORD_PTR)(dst - p_outfile->file_base)); \
printf ("\t0x%"pDWP" Size in bytes.\n", count); \
} \
memcpy (dst, s, count); \
@ -517,7 +517,7 @@ copy_executable_and_dump_data (file_data *p_infile,
printf ("%s\n", (message)); \
printf ("\t0x%p Address in process.\n", s); \
printf ("\t0x%p Base output file.\n", p_outfile->file_base); \
printf ("\t0x%"pDWP" Offset in output file.\n", dst - p_outfile->file_base); \
printf ("\t0x%"pDWP" Offset in output file.\n", (DWORD_PTR)(dst - p_outfile->file_base)); \
printf ("\t0x%p Address in output file.\n", dst); \
printf ("\t0x%"pDWP" Size in bytes.\n", count); \
} \

9
src/w32term.c
View file

@ -1645,6 +1645,7 @@ w32_setup_relief_color (struct frame *f, struct relief *relief, double factor,
if (w32_alloc_lighter_color (f, &pixel, factor, delta))
xgcv.foreground = relief->pixel = pixel;
xgcv.font = NULL; /* avoid compiler warnings */
if (relief->gc == 0)
{
#if 0 /* TODO: stipple */
@ -3087,8 +3088,8 @@ parse_button (int message, int xbutton, int * pbutton, int * pup)
static Lisp_Object
construct_mouse_click (struct input_event *result, W32Msg *msg, struct frame *f)
{
int button;
int up;
int button = 0;
int up = 0;
parse_button (msg->msg.message, HIWORD (msg->msg.wParam),
&button, &up);
@ -4976,8 +4977,8 @@ w32_read_socket (struct terminal *terminal,
/* If we decide we want to generate an event to be seen
by the rest of Emacs, we put it here. */
bool tool_bar_p = 0;
int button;
int up;
int button = 0;
int up = 0;
f = (x_mouse_grabbed (dpyinfo) ? dpyinfo->last_mouse_frame
: x_window_to_frame (dpyinfo, msg.msg.hwnd));