From b4ea670c8f263f0a453cf96db0fd5a2bd4735a3c Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus,com>
Date: Fri, 30 Jan 2004 22:34:56 +0000
Subject: [PATCH] Better header inclusion computation.

---
 mad | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/mad b/mad
index 8813970..5739de6 100755
--- a/mad
+++ b/mad
@@ -300,7 +300,7 @@ def p_expression_binop2(t):
     global headers
     op = t[2][1:-1].lower()
     t[0] = (op, t[1], t[3])
-    if op == 'pow':
+    if op == 'pow' and "math" not in headers:
         headers.append("math")
 
 def p_expression_not(t):
@@ -341,7 +341,7 @@ def p_function_application(t):
     'expression : FUNCALL application'
     t[0] = ('apply', t[1], tuple(t[2]))
     global headers
-    if t[1] in ('elog.', 'sqrt.'):
+    if t[1] in ('elog.', 'sqrt.') and "math" not in headers:
         headers.append("math")
 
 def p_expression_application(t):
@@ -617,8 +617,8 @@ def print_statement(statement):
 
 def generate(out):
     out.write("/* generated by the MAD compiler */\n\n")
-    if headers:
-        out.write('#include <math.h>\n\n')
+    for header in headers:
+        out.write('#include <%s.h>\n\n' % header)
 
     if integers:
         out.write('int ' + ', '.join(integers) + ';\t/* INTEGER */\n')
@@ -700,7 +700,6 @@ if __name__ == '__main__':
 
     # Perform global analysis
     analyze()
-    print "Baz!", headers
 
     if (dump_tuples):
         for t in deck:
-- 
2.43.0