From: Kenneth Graunke <kenneth@whitecape.org>
Date: Fri, 2 Jul 2010 22:31:26 +0000 (-0700)
Subject: glcpp: Add #error support.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7e908a6a27f196027a4dfd0f4d8c37aa71e163fa;p=mesa.git

glcpp: Add #error support.
---

diff --git a/src/glsl/glcpp/glcpp-lex.l b/src/glsl/glcpp/glcpp-lex.l
index afddd7ddb32..6a91b09954a 100644
--- a/src/glsl/glcpp/glcpp-lex.l
+++ b/src/glsl/glcpp/glcpp-lex.l
@@ -24,6 +24,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <ctype.h>
 
 #include "glcpp.h"
 #include "glcpp-parse.h"
@@ -139,6 +140,13 @@ HEXADECIMAL_INTEGER	0[xX][0-9a-fA-F]+[uU]?
 	}
 }
 
+{HASH}error.* {
+	char *p;
+	for (p = yytext; !isalpha(p[0]); p++); /* skip "  #   " */
+	p += 5; /* skip "error" */
+	glcpp_error(yylloc, yyextra, "#error%s", p);
+}
+
 {HASH}define{HSPACE}+/{IDENTIFIER}"(" {
 	yyextra->space_tokens = 0;
 	return HASH_DEFINE_FUNC;