From 222182789245b6c9f6c8cff1c0c35283bc1cba4d Mon Sep 17 00:00:00 2001
From: rillig <rillig@pkgsrc.org>
Date: Sat, 15 Jul 2006 23:58:52 +0000
Subject: Split the variable BUILD_DEFS into those that are defined by packages
 and those that are defined by the infrastructure (_BUILD_DEFS). This allows
 the build-defs-message target to be moved to the end of bsd.pkg.mk. Now it
 prints the correct result even in unprivileged builds, which had been wrong
 due to the order in which the files have been included. For example,
 ${UNPRIVILEGED_USER} was displayed as (not defined) although its value was
 defined, which could be checked with "bmake show-var".

Tested with one package that _does_ define BUILD_DEFS and with one that
doesn't. The behavior stays the same.
---
 mk/internal/build-defs-message.mk | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 mk/internal/build-defs-message.mk

(limited to 'mk/internal')

diff --git a/mk/internal/build-defs-message.mk b/mk/internal/build-defs-message.mk
new file mode 100644
index 00000000000..7cd032c6121
--- /dev/null
+++ b/mk/internal/build-defs-message.mk
@@ -0,0 +1,37 @@
+# $NetBSD: build-defs-message.mk,v 1.1 2006/07/15 23:58:52 rillig Exp $
+#
+
+# The build-defs-message target shows the variables that can be configured
+# by the pkgsrc user in mk.conf.
+#
+
+.PHONY: build-defs-message
+pre-depends-hook: build-defs-message
+.if empty(PKGSRC_SHOW_BUILD_DEFS:M[yY][eE][sS])
+build-defs-message:
+.elif !target(build-defs-message)
+build-defs-message: ${WRKDIR}
+.  if defined(BUILD_DEFS) && !empty(BUILD_DEFS)
+.    if !exists(${WRKDIR}/.bdm_done)
+	@${ECHO} "=========================================================================="
+	@${ECHO} "The following variables will affect the build process of this package,"
+	@${ECHO} "${PKGNAME}.  Their current value is shown below:"
+	@${ECHO} ""
+.      for var in ${BUILD_DEFS:O}
+.        if !defined(${var})
+	@${ECHO} "        * ${var} (not defined)"
+.        elif defined(${var}) && empty(${var})
+	@${ECHO} "        * ${var} (defined)"
+.        else
+	@${ECHO} "        * ${var} = ${${var}}"
+.        endif
+.      endfor
+	@${ECHO} ""
+	@${ECHO} "You may want to abort the process now with CTRL-C and change their value"
+	@${ECHO} "before continuing.  Be sure to run \`${MAKE} clean' after"
+	@${ECHO} "the changes."
+	@${ECHO} "=========================================================================="
+	@${TOUCH} ${WRKDIR}/.bdm_done
+.    endif
+.  endif
+.endif
-- 
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