Multiple unrelated changes

CONFIG_BITBANG_SPI was not selected if CONFIG_NICINTEL_SPI was on by default.
Wiki output was missing all flash chips if CONFIG_INTERNAL was not
selected.
Use correct type for toupper()/tolower()/isspace() functions.
Specify software requirements in a generic way.
Non-x86 compilation does not work with the default programmer set, so
list the make parameters which result in a working build.

Corresponding to flashrom svn r1203.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
diff --git a/processor_enable.c b/processor_enable.c
index 74caedc..b14cd33 100644
--- a/processor_enable.c
+++ b/processor_enable.c
@@ -53,22 +53,22 @@
 		if (fgets(line, sizeof(line), cpuinfo) == NULL)
 			break;
 		ptr = line;
-		while (*ptr && isspace(*ptr))
+		while (*ptr && isspace((unsigned char)*ptr))
 			ptr++;
 		/* "cpu" part appears only with some Linux versions.  */
 		if (strncmp(ptr, "cpu", sizeof("cpu") - 1) == 0)
 			ptr += sizeof("cpu") - 1;
-		while (*ptr && isspace(*ptr))
+		while (*ptr && isspace((unsigned char)*ptr))
 			ptr++;
 		if (strncmp(ptr, "model", sizeof("model") - 1) != 0)
 			continue;
 		ptr += sizeof("model") - 1;
-		while (*ptr && isspace(*ptr))
+		while (*ptr && isspace((unsigned char)*ptr))
 			ptr++;
 		if (*ptr != ':')
 			continue;
 		ptr++;
-		while (*ptr && isspace(*ptr))
+		while (*ptr && isspace((unsigned char)*ptr))
 			ptr++;
 		fclose(cpuinfo);
 		return (strncmp(ptr, "ICT Loongson-2 V0.3",