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-rw-r--r--source/fitz/output-pnm.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/source/fitz/output-pnm.c b/source/fitz/output-pnm.c
index dbc521b7..455a5358 100644
--- a/source/fitz/output-pnm.c
+++ b/source/fitz/output-pnm.c
@@ -129,7 +129,7 @@ fz_write_pixmap_as_pnm(fz_context *ctx, fz_output *out, fz_pixmap *pixmap)
}
void
-fz_save_pixmap_as_pnm(fz_context *ctx, fz_pixmap *pixmap, char *filename)
+fz_save_pixmap_as_pnm(fz_context *ctx, fz_pixmap *pixmap, const char *filename)
{
fz_band_writer *writer = NULL;
fz_output *out = fz_new_output_with_path(ctx, filename, 0);
@@ -226,7 +226,7 @@ fz_write_pixmap_as_pam(fz_context *ctx, fz_output *out, fz_pixmap *pixmap)
}
void
-fz_save_pixmap_as_pam(fz_context *ctx, fz_pixmap *pixmap, char *filename)
+fz_save_pixmap_as_pam(fz_context *ctx, fz_pixmap *pixmap, const char *filename)
{
fz_band_writer *writer = NULL;
fz_output *out = fz_new_output_with_path(ctx, filename, 0);