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-rw-r--r--Build/source/texk/dvipdfm-x/epdf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Build/source/texk/dvipdfm-x/epdf.c b/Build/source/texk/dvipdfm-x/epdf.c
index 4c9bbfc4105..4aae4ee9ece 100644
--- a/Build/source/texk/dvipdfm-x/epdf.c
+++ b/Build/source/texk/dvipdfm-x/epdf.c
@@ -675,7 +675,7 @@ pdf_copy_clip (FILE *image_file, int pageNo, double x_user, double y_user)
} else if (*clip_path == '-'
|| *clip_path == '+'
|| *clip_path == '.'
- || isdigit(*clip_path)) {
+ || isdigit((unsigned char)*clip_path)) {
stack[++top] = strtod(clip_path, &temp);
clip_path = temp;
} else if (*clip_path == '[') {