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configure: allow user to prevent $PATH "sanitization" on Solaris 

On a Solaris 10 system with Solaris make installed as '/usr/xpg4/bin/make',
GNU make installed as '/usr/local/bin/make', and with '/usr/local/bin'
appearing in $PATH *before* '/usr/xpg4/bin', I was seeing errors like this
upon invoking "make all":

    Usage : make [ -f makefile ][ -K statefile ]...
    make: Fatal error: Unknown option `-C'

This happenes because the Git's Makefile, when running on Solaris,
automatically "sanitizes" $PATH by prepending '/usr/xpg6/bin' and
'/usr/xpg4/bin' to it in order to avoid using non-POSIX /bin/sh from
being used.  In the setup described above, however, this has an
unintended consequence of forcing the use of Solaris make in recursive
make invocations -- even if the $(MAKE) macro is being correctly used in
them!

When building without using the autoconf machinery, this can be solved
by overriding $(SANE_TOOL_PATH).  Teach the autoconf machinery to also
allow users of ./configure to override it from the command line with a
new --with-sane-tool-path option.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stefano Lattarini 2012-03-09 13:43:55 +01:00 committed by Junio C Hamano
parent 56a33c8f1b
commit 213639494e
1 changed files with 17 additions and 0 deletions
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17
configure.ac
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@ -137,6 +137,23 @@ if test -n "$1"; then
fi
])
# Directories holding "saner" versions of common or POSIX binaries.
AC_ARG_WITH([sane-tool-path],
[AS_HELP_STRING(
[--with-sane-tool-path=DIR-1[[:DIR-2...:DIR-n]]],
[Directories to prepend to PATH in build system and generated scripts])],
[if test "$withval" = "no"; then
withval=''
else
AC_MSG_NOTICE([Setting SANE_TOOL_PATH to '$withval'])
fi
GIT_CONF_APPEND_LINE([SANE_TOOL_PATH=$withval])],
[# If the "--with-sane-tool-path" option was not given, don't touch
# SANE_TOOL_PATH here, but let defaults in Makefile take care of it.
# This should minimize spurious differences in the behaviour of the
# Git build system when configure is used w.r.t. when it is not.
:])
## Site configuration related to programs (before tests)
## --with-PACKAGE[=ARG] and --without-PACKAGE
#