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build: avoid non-portable shell in test setup

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POSIX states that 'a=1; a=2 b=$a command' has unspecified results
for the value of $b visible within command.  In particular, on
BSD, this resulted in PATH not picking up the in-test ssh.

* tests/Makefile.am (lv_abs_top_builddir): New macro.
(path_add, TESTS_ENVIRONMENT): Use it to avoid referring to an
environment variable set previously within the same command line.
Reported by Matthias Bolte.
This commit is contained in:
Eric Blake 2011-07-29 08:52:27 -06:00
parent f2ac5807b9
commit 343ab98229
1 changed files with 7 additions and 3 deletions
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10
tests/Makefile.am
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@ -259,13 +259,17 @@ TESTS += interfacexml2xmltest
TESTS += cputest
path_add = $$abs_top_builddir/daemon$(PATH_SEPARATOR)$$abs_top_builddir/tools$(PATH_SEPARATOR)$$abs_top_builddir/tests
# NB, automake < 1.10 does not provide the real
# abs_top_{src/build}dir or builddir variables, so don't rely
# on them here. Fake them with 'pwd'
# Also, BSD sh doesn't like 'a=b b=$$a', so we can't use an
# intermediate shell variable, but must do all the expansion in make
lv_abs_top_builddir=`cd '$(top_builddir)'; pwd`
path_add = $(lv_abs_top_builddir)/daemon$(PATH_SEPARATOR)$(lv_abs_top_builddir)/tools$(PATH_SEPARATOR)$(lv_abs_top_builddir)/tests
TESTS_ENVIRONMENT = \
abs_top_builddir=`cd '$(top_builddir)'; pwd` \
abs_top_builddir=$(lv_abs_top_builddir) \
abs_top_srcdir=`cd '$(top_srcdir)'; pwd` \
abs_builddir=`pwd` \
abs_srcdir=`cd '$(srcdir)'; pwd` \