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autoconf: use AC_CONFIG_COMMANDS instead of ad-hoc 'config.mak.append' 

This will allow "./config.status --recheck; ./config.status" to work
correctly as a mean of reconfiguring the tree with the same configure
argument used in the previous "./configure" invocation.

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 2012-07-19 09:50:00 +02:00 committed by Junio C Hamano
parent c8e134a236
commit ac5fc1c57f
1 changed files with 17 additions and 11 deletions
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28
configure.ac
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@ -5,9 +5,22 @@
# GIT_CONF_SUBST(VAL, VAR)
# ------------------------
# Append the line "VAR=VAL" to file ${config_append}
AC_DEFUN([GIT_CONF_APPEND_LINE],
[echo "$1=$2" >> "${config_append}"])
# Cause the line "VAR=VAL" to be eventually appended to ${config_file}.
AC_DEFUN([GIT_CONF_SUBST],
[AC_REQUIRE([GIT_CONF_SUBST_INIT])
config_appended_defs="$config_appended_defs${newline}$1=$2"])
# GIT_CONF_SUBST_INIT
# -------------------
# Prepare shell variables and autoconf machine required by later calls
# to GIT_CONF_SUBST.
AC_DEFUN([GIT_CONF_SUBST_INIT],
[config_appended_defs=; newline='
'
AC_CONFIG_COMMANDS([$config_file],
[echo "$config_appended_defs" >> "$config_file"],
[config_file=$config_file
config_appended_defs="$config_appended_defs"])])
# GIT_ARG_SET_PATH(PROGRAM)
# -------------------------
@ -133,11 +146,8 @@ AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org])
AC_CONFIG_SRCDIR([git.c])
config_file=config.mak.autogen
config_append=config.mak.append
config_in=config.mak.in
echo "# ${config_append}. Generated by configure." > "${config_append}"
# Directories holding "saner" versions of common or POSIX binaries.
AC_ARG_WITH([sane-tool-path],
[AS_HELP_STRING(
@ -1041,9 +1051,5 @@ AC_SUBST(PTHREAD_LIBS)
AC_SUBST(NO_PTHREADS)
## Output files
AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
AC_CONFIG_FILES(["${config_file}":"${config_in}"])
AC_OUTPUT
## Cleanup
rm -f "${config_append}"