summaryrefslogtreecommitdiff
path: root/usr.bin/make
diff options
context:
space:
mode:
authorMarc Espie <espie@cvs.openbsd.org>2013-02-04 14:44:59 +0000
committerMarc Espie <espie@cvs.openbsd.org>2013-02-04 14:44:59 +0000
commit62acd246e4e235cb2c34b6d16e59ed9d467de457 (patch)
treebe6caeae27d0d7420e9f7c84798d56ffc7cf47a2 /usr.bin/make
parent061e76f15d31d8461b6dfa2e37aabab74642f279 (diff)
synch with reality, okay jmc@
Diffstat (limited to 'usr.bin/make')
-rw-r--r--usr.bin/make/make.127
1 files changed, 17 insertions, 10 deletions
diff --git a/usr.bin/make/make.1 b/usr.bin/make/make.1
index 7e94424dad7..c17e620c66e 100644
--- a/usr.bin/make/make.1
+++ b/usr.bin/make/make.1
@@ -1,4 +1,4 @@
-.\" $OpenBSD: make.1,v 1.100 2012/10/12 21:44:19 espie Exp $
+.\" $OpenBSD: make.1,v 1.101 2013/02/04 14:44:58 espie Exp $
.\" $NetBSD: make.1,v 1.18 1997/03/10 21:19:53 christos Exp $
.\"
.\" Copyright (c) 1990, 1993
@@ -30,7 +30,7 @@
.\"
.\" from: @(#)make.1 8.4 (Berkeley) 3/19/94
.\"
-.Dd $Mdocdate: October 12 2012 $
+.Dd $Mdocdate: February 4 2013 $
.Dt MAKE 1
.Os
.Sh NAME
@@ -526,6 +526,20 @@ Any whitespace before the assigned
is removed; if the value is being appended, a single space is inserted
between the previous contents of the variable and the appended value.
.Pp
+Several extended assignment operators may be combined together.
+For instance,
+.Bd -literal -offset indent
+A ?!= cmd
+.Ed
+.Pp
+will only run
+.Qq cmd
+and put its output into
+.Va A
+if
+.Va A
+is not yet defined.
+.Pp
Variables are expanded by surrounding the variable name with either
curly braces
.Pq Ql {}
@@ -1542,7 +1556,7 @@ is contorted to the point of absurdity.
.Pp
If the same target is specified several times in complete target rules,
.Nm
-ignores all commands after the first non empty set of commands,
+silently ignores all commands after the first non empty set of commands,
e.g., in
.Bd -literal -offset indent
a:
@@ -1601,13 +1615,6 @@ For instance, in
.Pp
the test will never match, even though the value is correct.
.Pp
-The conditional handler is incredibly lame.
-Junk such as
-.Pp
-.Dl \&.if defined anything goes (A)
-.Pp
-will be accepted silently.
-.Pp
In a .for loop, only the variable value is used; assignments will be
evaluated later, e.g., in
.Bd -literal -offset indent