fix solaris install problems

bdb.h

@@ -4,8 +4,13 @@
 
 #include <ruby.h>
 #include <version.h>
-#include <db4/db.h>
+#include <extconf.h>
 
+#ifdef INC_DB4
+#include <db4/db.h>
+#else
+#include <db.h>
+#endif
 
 #define NOTXN NULL
 

extconf.rb

@@ -2,6 +2,10 @@
 
 require 'mkmf'
 
+if CONFIG['INSTALL'] =~ %r{./install-sh}
+  CONFIG.delete("INSTALL")
+end
+
 mj,mi,rv=RUBY_VERSION.split('.').collect {|s| s.to_i}
 ri=(((mj*1000)+mi)*1000)+rv
 if ri < 1008004
@@ -30,6 +34,15 @@ h_headers=%w(db4/db.h db.h)
 until h_headers.empty?
  (inc_ok=find_header(this_h=h_headers.shift,*h_locations)) && break
 end
+puts "db header is #{this_h} #{inc_ok} #$INCFLAGS"
+
+if this_h == "db4/db.h"
+  $defs << "-DINC_DB4"
+else
+  $defs << "-UINC_DB4"
+end
+
+puts "defs: "+$defs.inspect
 
 # Find db.h, not sure this will work everywhere, gcc is ok
 src=create_tmpsrc("#include <#{this_h}>")
@@ -48,7 +61,7 @@ File.open(header_loc) {|fd|
     hd.puts("/* This file automatically generated by extconf.rb */\n")
     fd.each_line {|l|
       if l =~ %r{^#define\s+(DBC?_\w*)\s+(\"?)} and macro_defined?($1,inc)
-        if $2 == '"'
+        if $2 == '\"'
           hd.print(%Q{    cs(mBdb,%s);\n}%[$1])
         else
           hd.print(%Q{    ci(mBdb,%s);\n}%[$1])
@@ -58,10 +71,13 @@ File.open(header_loc) {|fd|
       end
     }
   }
-}
+} unless File.exist?("bdb_aux._c")
 message("\nwrote #{n} defines\n")
 
+$defs << $INCFLAGS
+
 if lib_ok and inc_ok
+  create_header
   create_makefile('bdb2')
 else
   $stderr.puts("cannot create Makefile")