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-rw-r--r--stdlib/isomac.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/stdlib/isomac.c b/stdlib/isomac.c
index 451cf0c6f5..82a142b2d7 100644
--- a/stdlib/isomac.c
+++ b/stdlib/isomac.c
@@ -177,7 +177,7 @@ static char *macros[] =
 static const char fmt[] = "\
 echo \"#include <%s>\" |\
 %s -E -dM -ansi -pedantic %s -D_LIBC -I. \
--isystem `%s --print-prog-name=include` - > %s";
+-isystem `%s --print-prog-name=include` - 2> /dev/null > %s";
 
 
 /* The compiler we use (given on the command line).  */