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Get --enable-gcc-warnings to work after touching configure.ac.

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Preserve ACLOCAL_PATH in later builds, so that by default it has
the same value as it did in the first build after initial checkout.
* Makefile.in (ACLOCAL_PATH): New macro.
($(srcdir)/aclocal.m4): Use it.
* configure.ac (ACLOCAL_PATH): AC_SUBST it.
* autogen.sh (env_space): New var.
Tell user what variables, if any, to pass to 'configure'.
This commit is contained in:
Paul Eggert 2014-05-03 09:27:17 -07:00
parent a7e1ffdc7e
commit 541df9f424
4 changed files with 19 additions and 4 deletions
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8
autogen.sh
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@ -210,6 +210,7 @@ fi
# find the pkg.m4 that is installed in the standard location.
echo "Checking for pkg.m4..."
AUTORECONF_ENV=
env_space=
ac_dir=`aclocal --print-ac-dir` && test -r "$ac_dir/pkg.m4" || {
oIFS=$IFS
IFS=:
@ -225,7 +226,8 @@ ac_dir=`aclocal --print-ac-dir` && test -r "$ac_dir/pkg.m4" || {
?*) ACLOCAL_PATH=$ACLOCAL_PATH:$ac_dir;;
esac
export ACLOCAL_PATH
AUTORECONF_ENV="ACLOCAL_PATH='$ACLOCAL_PATH' "
AUTORECONF_ENV="ACLOCAL_PATH='$ACLOCAL_PATH'"
env_space=' '
break
fi
fi
@ -244,7 +246,7 @@ EOF
echo ok
echo 'Your system has the required tools.'
echo "Running \"${AUTORECONF_ENV}autoreconf -fi -I m4\" ..."
echo "Running \"$AUTORECONF_ENV${env_space}autoreconf -fi -I m4\" ..."
## Let autoreconf figure out what, if anything, needs doing.
@ -255,7 +257,7 @@ autoreconf -fi -I m4 || exit $?
## cause 'make' to needlessly run 'autoheader'.
echo timestamp > src/stamp-h.in || exit
echo "You can now run \`./configure'."
echo "You can now run \`./configure$env_space$AUTORECONF_ENV'."
exit 0