mesa: Include <unistd.h> only when one is available.

(cherry picked from commit 970823978c2f7d2cf0757aa6ddbd6289b34c476f)

diff --git a/src/mesa/shader/lex.yy.c b/src/mesa/shader/lex.yy.c
index fefef57..408ede6 100644 (file)
--- a/src/mesa/shader/lex.yy.c
+++ b/src/mesa/shader/lex.yy.c
@@ -913,6 +913,10 @@ static yyconst flex_int16_t yy_chk[1023] =
 #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) {                                 \

diff --git a/src/mesa/shader/program_lexer.l b/src/mesa/shader/program_lexer.l
index c2803ff..ce4cb42 100644 (file)
--- 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) {                                 \