Deprecate the FreeBSD make's ":U" (to-upper case) and ":L" (to-lower case)

modifiers for ":tu" and ":tl" from OSF's ODE, which made its way into
NetBSD's make, which is the source for the Portable Berkeley Make.

Submitted by:	Simon Gerraty <sjg@juniper.net>

3 files changed, 35 insertions, 1 deletions

diff --git a/usr.bin/make/Makefile b/usr.bin/make/Makefile
index 670e524..9afaa57 100644
--- a/usr.bin/make/Makefile
+++ b/usr.bin/make/Makefile
@@ -15,7 +15,7 @@ NO_SHARED?=	YES
 .endif
 
 # Version has the RYYYYMMDDX format, where R is from RELENG_<R>
-CFLAGS+=-DMAKE_VERSION=\"5201111300\"
+CFLAGS+=-DMAKE_VERSION=\"10201120530\"
 
 # There is no obvious performance improvement currently.
 # CFLAGS+=-DUSE_KQUEUE
diff --git a/usr.bin/make/make.1 b/usr.bin/make/make.1
index 80216b4..fc91f3c 100644
--- a/usr.bin/make/make.1
+++ b/usr.bin/make/make.1
@@ -902,6 +902,7 @@ Replaces each word in the variable with its suffix.
 Replaces each word in the variable with everything but the last component.
 .It Cm :L
 Converts variable to lower-case letters.
+(deprecated)
 .It Cm :M Ns Ar pattern
 Select only those words that match the rest of the modifier.
 The standard shell wildcard characters
@@ -993,8 +994,13 @@ to be replaced in
 .Ar new_string .
 .It Cm :T
 Replaces each word in the variable with its last component.
+.It Cm :tl
+Converts variable to lower-case letters.
+.It Cm :tu
+Converts variable to upper-case letters.
 .It Cm :U
 Converts variable to upper-case letters.
+(deprecated)
 .It Cm :u
 Remove adjacent duplicate words (like
 .Xr uniq 1 ) .
@@ -1742,6 +1748,19 @@ is set to the same value as
 .Va .MAKE ;
 support for this may be removed in the future.
 .Pp
+The use of the
+.Cm :L
+and
+.Cm :U
+modifiers are deprecated
+in
+.Fx 10.0
+and the more portable (among Pmake decedents)
+.Cm :tl
+and
+.Cm :tu
+should be used instead.
+.Pp
 Most of the more esoteric features of
 .Nm
 should probably be avoided for greater compatibility.
diff --git a/usr.bin/make/var.c b/usr.bin/make/var.c
index a7babaf..341ee79 100644
--- a/usr.bin/make/var.c
+++ b/usr.bin/make/var.c
@@ -1746,6 +1746,19 @@ ParseModifier(VarParser *vp, char startc, Var *v, Boolean *freeResult)
 		case 'C':
 			newStr = modifier_C(vp, value, v);
 			break;
+		case 't':
+			/* :tl :tu for OSF ODE & NetBSD make compatibility */
+			switch (vp->ptr[1]) {
+			case 'l':
+				vp->ptr++;
+				goto mod_lower;
+				break;
+			case 'u':
+				vp->ptr++;
+				goto mod_upper;
+				break;
+			}
+			/* FALLTHROUGH */
 		default:
 			if (vp->ptr[1] != endc && vp->ptr[1] != ':') {
 #ifdef SUNSHCMD
@@ -1774,6 +1787,7 @@ ParseModifier(VarParser *vp, char startc, Var *v, Boolean *freeResult)
 
 			switch (vp->ptr[0]) {
 			case 'L':
+			mod_lower:
 				{
 				const char	*cp;
 				Buffer		*buf;
@@ -1799,6 +1813,7 @@ ParseModifier(VarParser *vp, char startc, Var *v, Boolean *freeResult)
 				vp->ptr++;
 				break;
 			case 'U':
+			mod_upper:
 				{
 				const char	*cp;
 				Buffer		*buf;