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Diffstat (limited to 'Build/source/texk/dvipdfm-x/dpxfile.c')
-rw-r--r--Build/source/texk/dvipdfm-x/dpxfile.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Build/source/texk/dvipdfm-x/dpxfile.c b/Build/source/texk/dvipdfm-x/dpxfile.c
index f890a8f343e..575ba52e525 100644
--- a/Build/source/texk/dvipdfm-x/dpxfile.c
+++ b/Build/source/texk/dvipdfm-x/dpxfile.c
@@ -1125,7 +1125,7 @@ ispscmap (FILE *fp)
p = mfgets(_sbuf, 128, fp); p[127] = '\0';
if (!p || strlen(p) < 4 || memcmp(p, "%!PS", 4))
return 0;
- for (p += 4; *p && !isspace(*p); p++);
+ for (p += 4; *p && !isspace((unsigned char)*p); p++);
for ( ; *p && (*p == ' ' || *p == '\t'); p++);
if (*p == '\0' || strlen(p) < strlen("Resource-CMap"))
return 0;