Added support to the unix build system for explicitely specifying the name of

the define to set to show when a symbol is found.
Also a fix for when 'strcasecmp' is #define'd by the system.



git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@2881 8092fc87-c524-0410-9efc-e669fe64eaf9

sc2/src/port.h

@@ -45,12 +45,20 @@
 #	include <unistd.h>
 #endif
 
-#ifndef HAVE_STRICMP
+// Using "HAVE_STRCASECMP_UQM" instead of "HAVE_STRCASECMP" as the latter
+// conflicts with SDL.
+#if !defined(HAVE_STRICMP) && !defined(HAVE_STRCASECMP_UQM)
+#	error Neither stricmp() nor strcasecmp() is available.
+#elif defined(HAVE_STRCASECMP_UQM)
 #	define stricmp strcasecmp
-#else
+#elif defined(HAVE_STRICMP)
 #	define strcasecmp stricmp
+#else
+	// We should take care not to define anything if both strcasecmp() and
+	// stricmp() are defined, as one might exist as a macro to the other.
 #endif
 
+
 #ifndef HAVE_STRUPR
 char *strupr (char *str);
 #endif