Declare functions without arguments as taking void.

4 files changed, 4 insertions, 4 deletions

diff --git a/platform/x11/x11_main.c b/platform/x11/x11_main.c
index dc99878b..fe2daa87 100644
--- a/platform/x11/x11_main.c
+++ b/platform/x11/x11_main.c
@@ -348,7 +348,7 @@ void cleanup(pdfapp_t *app)
 	fz_drop_context(ctx);
 }
 
-static int winresolution()
+static int winresolution(void)
 {
 	return DisplayWidth(xdpy, xscr) * 25.4f /
 		DisplayWidthMM(xdpy, xscr) + 0.5f;
diff --git a/source/fitz/harfbuzz.c b/source/fitz/harfbuzz.c
index d2ff3bf5..80451278 100644
--- a/source/fitz/harfbuzz.c
+++ b/source/fitz/harfbuzz.c
@@ -71,7 +71,7 @@ static void set_hb_context(fz_context *ctx)
 	hb_secret = ctx;
 }
 
-static fz_context *get_hb_context()
+static fz_context *get_hb_context(void)
 {
 	return hb_secret;
 }
diff --git a/source/fitz/load-jpx.c b/source/fitz/load-jpx.c
index b03f26ce..2110299c 100644
--- a/source/fitz/load-jpx.c
+++ b/source/fitz/load-jpx.c
@@ -500,7 +500,7 @@ static void set_opj_context(fz_context *ctx)
 	opj_secret = ctx;
 }
 
-static fz_context *get_opj_context()
+static fz_context *get_opj_context(void)
 {
 	return opj_secret;
 }
diff --git a/source/tools/pdfportfolio.c b/source/tools/pdfportfolio.c
index b1dc71bd..a473968b 100644
--- a/source/tools/pdfportfolio.c
+++ b/source/tools/pdfportfolio.c
@@ -72,7 +72,7 @@ safe_print_pdf_obj(fz_context *ctx, pdf_obj *obj, const char *dflt)
 }
 
 static void
-pdfportfolio_list()
+pdfportfolio_list(void)
 {
 	/* List files */
 	int m = pdf_count_portfolio_schema(ctx, doc);