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-rw-r--r--src/mesa/shader/program_lexer.l4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/shader/program_lexer.l b/src/mesa/shader/program_lexer.l
index c2803ff7074..ce4cb42243b 100644
--- a/src/mesa/shader/program_lexer.l
+++ b/src/mesa/shader/program_lexer.l
@@ -35,6 +35,10 @@
#define require_rect (yyextra->option.TexRect)
#define require_texarray (yyextra->option.TexArray)
+#ifndef HAVE_UNISTD_H
+#define YY_NO_UNISTD_H
+#endif
+
#define return_token_or_IDENTIFIER(condition, token) \
do { \
if (condition) { \