[pkgsrc/trunk]: pkgsrc/mk If the package doesn't provide a SUBST_MESSAGE, gen...

[rillig <rillig%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/b84d53be6635
branches:  trunk
changeset: 537862:b84d53be6635
user:      rillig <rillig%pkgsrc.org@localhost>
date:      Fri Jan 18 11:26:11 2008 +0000

description:
If the package doesn't provide a SUBST_MESSAGE, generate a default one.
This way, file modifications cannot go unnoticed and at least appear in
the build logs. While here, fixed an ambiguity in the description of
SUBST_MESSAGE.

diffstat:

 mk/subst.mk |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (35 lines):

diff -r 35199bcc59ce -r b84d53be6635 mk/subst.mk
--- a/mk/subst.mk       Fri Jan 18 11:16:08 2008 +0000
+++ b/mk/subst.mk       Fri Jan 18 11:26:11 2008 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: subst.mk,v 1.50 2008/01/18 11:16:08 rillig Exp $
+# $NetBSD: subst.mk,v 1.51 2008/01/18 11:26:11 rillig Exp $
 #
 # This Makefile fragment implements a general text replacement facility.
 # Package makefiles define a ``class'', for each of which a particular
@@ -15,7 +15,7 @@
 #      {pre,do,post}-{extract,patch,configure,build,install}.
 #
 # SUBST_MESSAGE.<class>
-#      The message to display when the substitution is done.
+#      The message to display before doing the substitution.
 #
 # SUBST_FILES.<class>
 #      A list of file patterns on which to run the substitution;
@@ -75,6 +75,7 @@
 
 SUBST_FILTER_CMD.${_class_}?=  ${SED} ${SUBST_SED.${_class_}}
 SUBST_VARS.${_class_}?=                # none
+SUBST_MESSAGE.${_class_}?=     Substituting "${_class_}" in ${SUBST_FILES.${_class_}}
 .  for v in ${SUBST_VARS.${_class_}}
 SUBST_FILTER_CMD.${_class_} += -e s,@${v}@,${${v}:S|\\|\\\\|gW:S|,|\\,|gW:S|&|\\\&|gW:Q},g
 .  endfor
@@ -100,7 +101,7 @@
 subst-${_class_}: ${_SUBST_COOKIE.${_class_}}
 
 ${_SUBST_COOKIE.${_class_}}:
-.  if defined(SUBST_MESSAGE.${_class_})
+.  if !empty(SUBST_MESSAGE.${_class_})
        ${RUN} ${ECHO_SUBST_MSG} ${SUBST_MESSAGE.${_class_}:Q}
 .  endif
        ${RUN} cd ${WRKSRC:Q};                                          \