From c93073c260923dcbdb29dbec4e22ec78b1fc4194 Mon Sep 17 00:00:00 2001
From: Yaroslav Tykhiy <ytykhiy@gmail.com>
Date: Tue, 4 Dec 2007 12:55:27 +0000
Subject: [PATCH] - Explicitly verify if all needed libs were found by ldd(1). 
 Do so   through scanning its output as ldd(1) returns a non-zero status only 
  for really abnormal conditions such as an improper file format.   Now cp(1)
 won't get bogus "not" and "found" arguments if a lib   is missing. [1]

- Don't guess if an element of a complex pipeline is assigned to the main
  shell or a sub-shell.  Namely use stdio, not vars, to pass lists out from
  loops.  If using vars, there's the risk that a loop will run in a sub-shell
  and the list won't make it to the main shell.  It appears that braces and
  parens give only limited control over the issue while stdio always works
  as intended.  Apply this solution to both $progs and $libs for consistency,
  although I've failed to go without it only in the $libs part.

Requested by:	emaste [1]
---
 Makefile.inc1 | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/Makefile.inc1 b/Makefile.inc1
index 4447bdc43f1e..13650969765e 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -591,17 +591,25 @@ ITOOLS=	[ awk cap_mkdb cat chflags chmod chown \
 #
 distributeworld installworld: installcheck
 	mkdir -p ${INSTALLTMP}
-	for prog in ${ITOOLS}; do \
+	progs=$$(for prog in ${ITOOLS}; do \
 		if progpath=`which $$prog`; then \
-			progs="$$progs $$progpath"; \
+			echo $$progpath; \
 		else \
 			echo "Required tool $$prog not found in PATH." >&2; \
 			exit 1; \
 		fi; \
-	done; \
-	cp $$progs ${INSTALLTMP}; \
-	cp `ldd -f "%p\n" -f "%p\n" $$progs 2>/dev/null | \
-	    sort -u` ${INSTALLTMP}
+	    done); \
+	libs=$$(ldd -f "%o %p\n" -f "%o %p\n" $$progs 2>/dev/null | sort -u | \
+	    while read line; do \
+		set -- $$line; \
+		if [ "$$2 $$3" != "not found" ]; then \
+			echo $$2; \
+		else \
+			echo "Required library $$1 not found." >&2; \
+			exit 1; \
+		fi; \
+	    done); \
+	cp $$libs $$progs ${INSTALLTMP}
 	cp -R $${PATH_LOCALE:-"/usr/share/locale"} ${INSTALLTMP}/locale
 	${_+_}cd ${.CURDIR}; ${IMAKE} re${.TARGET:S/world$//}; \
 	    ${IMAKEENV} rm -rf ${INSTALLTMP}