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-rw-r--r--Build/source/texk/afm2pl/afm2pl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Build/source/texk/afm2pl/afm2pl.c b/Build/source/texk/afm2pl/afm2pl.c
index 6f7514eb30c..07cff18a3a4 100644
--- a/Build/source/texk/afm2pl/afm2pl.c
+++ b/Build/source/texk/afm2pl/afm2pl.c
@@ -1821,7 +1821,7 @@ writepl(void)
tbuf[39] = 0;
}
tbp = tbuf;
- while (*tbp) { *tbp = toupper (*tbp); tbp++; }
+ while (*tbp) { *tbp = toupper ((unsigned char)*tbp); tbp++; }
ploutln2 ("(CODINGSCHEME %s)", tbuf);
}
ploutln ("(DESIGNSIZE R 10.0)");