tests: avoid a spurious failure on non-POSIX systems

Fixes automake bug#14495.

* t/lex-header.sh: Make sure unistd.h isn't included.

Signed-off-by: Peter Rosin <peda@lysator.liu.se>

diff --git a/t/lex-header.sh b/t/lex-header.sh
index 005ae86..0789af4 100644 (file)
--- a/t/lex-header.sh
+++ b/t/lex-header.sh
@@ -55,6 +55,7 @@ cat > lexer.l << 'END'
 END
 
 cat > main.c <<'END'
+#define YY_NO_UNISTD_H 1
 #include "mylex.h"
 int main (void)
 {