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-rw-r--r--libc/unistd/sysconf.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libc/unistd/sysconf.c b/libc/unistd/sysconf.c
index f5b49a10f..902697b45 100644
--- a/libc/unistd/sysconf.c
+++ b/libc/unistd/sysconf.c
@@ -29,7 +29,9 @@
#include <unistd.h>
#include <sys/sysinfo.h>
#include <sys/types.h>
+#ifdef __UCLIBC_HAS_REGEX__
#include <regex.h>
+#endif
#ifndef __UCLIBC_CLK_TCK_CONST
#error __UCLIBC_CLK_TCK_CONST not defined!