glcpp: Actually support #ifdef and #ifndef.

Strangely, the lexer never created these tokens, even though the parser
already had code to handle them.

diff --git a/glcpp/glcpp-lex.l b/glcpp/glcpp-lex.l
index 06bde3f..a04e0fa 100644 (file)
--- a/glcpp/glcpp-lex.l
+++ b/glcpp/glcpp-lex.l
@@ -70,6 +70,16 @@ NON_STARS_THEN_STARS [^*]*[*]+
        return OTHER;
 }
 
+{HASH}ifdef/.*\n {
+       yyextra->space_tokens = 0;
+       return HASH_IFDEF;
+}
+
+{HASH}ifndef/.*\n {
+       yyextra->space_tokens = 0;
+       return HASH_IFNDEF;
+}
+
 {HASH}if/.*\n {
        yyextra->lexing_if = 1;
        yyextra->space_tokens = 0;