[pkgsrc/trunk]: pkgsrc/mk Pretty-print the PKG_SUPPORTED_OPTIONS so that we d...

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

details:   https://anonhg.NetBSD.org/pkgsrc/rev/6bf4deb07d28
branches:  trunk
changeset: 479096:6bf4deb07d28
user:      jlam <jlam%pkgsrc.org@localhost>
date:      Wed Aug 04 23:25:14 2004 +0000

description:
Pretty-print the PKG_SUPPORTED_OPTIONS so that we don't overflow a line
of the display.  We now batch them up and print a few per line.  Also,
display the supported options at pre-install-depends time.

diffstat:

 mk/bsd.options.mk |  24 ++++++++++++++++++++----
 1 files changed, 20 insertions(+), 4 deletions(-)

diffs (45 lines):

diff -r 2ecc300abdba -r 6bf4deb07d28 mk/bsd.options.mk
--- a/mk/bsd.options.mk Wed Aug 04 23:22:38 2004 +0000
+++ b/mk/bsd.options.mk Wed Aug 04 23:25:14 2004 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: bsd.options.mk,v 1.2 2004/08/04 09:36:16 jlam Exp $
+# $NetBSD: bsd.options.mk,v 1.3 2004/08/04 23:25:14 jlam Exp $
 #
 # This Makefile fragment provides boilerplate code for standard naming
 # conventions for handling per-package build options.
@@ -163,8 +163,8 @@
 #
 BUILD_DEFS+=           PKG_OPTIONS
 
-.PHONY: pre-extract supported-options-message
-pre-extract: supported-options-message
+.PHONY: pre-install-depends supported-options-message
+pre-install-depends: supported-options-message
 .if !defined(PKG_SUPPORTED_OPTIONS)
 supported-options-message: # do nothing
 .else
@@ -174,7 +174,23 @@
        @${ECHO} "=========================================================================="
        @${ECHO} "The supported build options for this package are:"
        @${ECHO} ""
-       @${ECHO} "      ${PKG_SUPPORTED_OPTIONS}"
+       @set -- ${PKG_SUPPORTED_OPTIONS};                               \
+       printwidth=40;                                                  \
+       while ${TEST} $$# -gt 0; do                                     \
+               if ${TEST} -z "$$line"; then                            \
+                       line=$$1;                                       \
+               else                                                    \
+                       line="$$line $$1";                              \
+               fi;                                                     \
+               if ${TEST} $${#line} -gt $$printwidth; then             \
+                       ${ECHO} "       $$line";                        \
+                       line=;                                          \
+               fi;                                                     \
+               shift;                                                  \
+       done;                                                           \
+       if ${TEST} $${#line} -le $$printwidth; then                     \
+               ${ECHO} "       $$line";                                \
+       fi
        @${ECHO} ""
        @${ECHO} "You can select which build options to use by setting the following"
        @${ECHO} "variables.  Their curent value is shown:"