sort: Only build FreeBSD-specific ALTMON_x stuff when ATLMON_1 is def…

…ined

On MacOS, we bootstrap sort. Since ALTMON_* are not defined there, the
build blows up. Since we don't need this feature for the FreeBSD build
process, and since we won't use it unless we actually install the NL
files that have this data in it, just #ifdef it out for now. In the
extremely unlikely event that the FreeBSD bootstrap/build process grows
this dependency, we can evaluate the best solution then (which most
likely is going to be not depend on the local's month names).

Fixes:			3d44dce (MacOS builds and github CI)
Sponsored by:		Netflix
Reviewed by:		jrtc27, [email protected], markj
Differential Revision:	https://reviews.freebsd.org/D42868

usr.bin/sort/bwstring.c

@@ -113,9 +113,11 @@ initialise_months(void)
 	const nl_item ab_item[12] = { ABMON_1, ABMON_2, ABMON_3, ABMON_4,
 	    ABMON_5, ABMON_6, ABMON_7, ABMON_8, ABMON_9, ABMON_10,
 	    ABMON_11, ABMON_12 };
+#ifdef ALTMON_1
 	const nl_item alt_item[12] = { ALTMON_1, ALTMON_2, ALTMON_3, ALTMON_4,
 	    ALTMON_5, ALTMON_6, ALTMON_7, ALTMON_8, ALTMON_9, ALTMON_10,
 	    ALTMON_11, ALTMON_12 };
+#endif
 	int i;
 
 	/*
@@ -132,9 +134,13 @@ initialise_months(void)
 				if (!populate_cmonth(&cmonths[i].ab,
 				    ab_item[i], i))
 					continue;
+#ifdef ALTMON_1
 				if (!populate_cmonth(&cmonths[i].alt,
 				    alt_item[i], i))
 					continue;
+#else
+				cmonths[i].alt = NULL;
+#endif
 			}
 		}
 
@@ -148,9 +154,13 @@ initialise_months(void)
 				if (!populate_wmonth(&wmonths[i].ab,
 				    ab_item[i], i))
 					continue;
+#ifdef ALTMON_1
 				if (!populate_wmonth(&wmonths[i].alt,
 				    alt_item[i], i))
 					continue;
+#else
+				wmonths[i].alt = NULL;
+#endif
 			}
 		}
 	}