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-rw-r--r--ChangeLog6
-rwxr-xr-xconfigure21
2 files changed, 23 insertions, 4 deletions
diff --git a/ChangeLog b/ChangeLog
index 482c71e..e2d6120 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
Tue Apr 21 12:31:33 1992 K. Richard Pixley (rich@cygnus.com)
+ * configure: use move-if-change from gcc to create config.status.
+ Some makefiles depend on config.status to tell if a directory
+ has been reconfigured for a different host. This change
+ prevents those directories from remaking everything in the case
+ where the reconfig was only intended to rebuild a Makefile.
+
* configure: test for config.sub with "config.sub sun4" rather
than "config.sub ${host_alias}". Otherwise we can't tell a bad
host alias from a missing config.sub.
diff --git a/configure b/configure
index 97cf431..6446f47 100755
--- a/configure
+++ b/configure
@@ -60,6 +60,7 @@ next_prefix=
next_site=
next_srcdir=
next_target=
+moveifchange=
next_tmpdir=
norecursion=
removing=
@@ -323,6 +324,7 @@ if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
fi
configsub=`echo ${progname} | sed 's/configure$/config.sub/'`
+moveifchange=`echo ${progname} | sed 's/configure$/move-if-change/'`
# this is a hack. sun4 must always be a valid host alias or this will fail.
if ${configsub} sun4 >/dev/null 2>&1 ; then
@@ -332,6 +334,15 @@ else
exit 1
fi
+touch config.junk
+if ${moveifchange} config.junk config.trash ; then
+ true
+else
+ echo '***' cannot find move-if-change. 1>&2
+ exit 1
+fi
+rm -f config.junk config.trash
+
case "${srcdir}" in
"")
if [ -r configure.in ] ; then
@@ -495,6 +506,7 @@ for subdir in . ${subdirs} ; do
# Make the links.
configlinks="${links}"
+ mv -f config.status config.back
while [ -n "${files}" ] ; do
# set file to car of files, files to cdr of files
set ${files}; file=$1; shift; files=$*
@@ -507,7 +519,6 @@ for subdir in . ${subdirs} ; do
fi
${remove} -f ${link}
- rm -f config.status
# Make a symlink if possible, otherwise try a hard link
${symbolic_link} ${srcdir}/${file} ${link} 2>/dev/null || ${hard_link} ${srcdir}/${file} ${link}
@@ -697,16 +708,18 @@ EOF
# ${NO_EDIT}
# ${PWD} was configured as follows:
${progname}" ${arguments} "
-# ${using}" > ${subdir}/config.status
+# ${using}" > ${subdir}/config.new
else
echo "#!/bin/sh
# ${NO_EDIT}
# ${PWD}/${subdir} was configured as follows:
cd ${invsubdir}
${progname}" ${arguments} "
-# ${using}" > ${subdir}/config.status
+# ${using}" > ${subdir}/config.new
fi
- chmod a+x ${subdir}/config.status
+ chmod a+x ${subdir}/config.new
+ mv -f config.back config.status
+ ${moveifchange} config.new config.back
;;
*) rm -f ${Makefile} ${subdir}/config.status ${links} ;;