[Buildroot] [PATCH 1/1] package/brltty: fix infinite loop in configure

[James Hilliard]

Revert a broken commit that introduced an infinite loop during
configure.

Fixes:
 - http://autobuild.buildroot.net/results/82a/82af705f7ca282495461cb3994f5a7e6f64273e1
 - http://autobuild.buildroot.net/results/06c/06c9414a1ecbc1a147bc8dfddced03fc659af694
 - http://autobuild.buildroot.net/results/59e/59e36093f7e437a5a37037f7fa50ce2443c47fd3

Signed-off-by: James Hilliard <james.hilliard1 at gmail.com>
---
 ...ushProgramTerminationCommand-shell-f.patch | 107 ++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 package/brltty/0002-Revert-Add-the-pushProgramTerminationCommand-shell-f.patch

diff --git a/package/brltty/0002-Revert-Add-the-pushProgramTerminationCommand-shell-f.patch b/package/brltty/0002-Revert-Add-the-pushProgramTerminationCommand-shell-f.patch
new file mode 100644
index 0000000000..f5653342e2
--- /dev/null
+++ b/package/brltty/0002-Revert-Add-the-pushProgramTerminationCommand-shell-f.patch
@@ -0,0 +1,107 @@
+From 941acbb1caa8a85454a491364e74fb273223b7fb Mon Sep 17 00:00:00 2001
+From: James Hilliard <james.hilliard1 at gmail.com>
+Date: Sat, 15 Oct 2022 10:54:57 -0600
+Subject: [PATCH] Revert "Add the pushProgramTerminationCommand shell function.
+ (dm)"
+
+Fixes infinite loop during configure:
+
+config.status: executing build-configure commands
+configure: WARNING: libudev support not available
+configure: WARNING: Human Interface Device I/O support not available on this platform
+./mk4build: 104: let: not found
+./mk4build: 104: let: not found
+./mk4build: 111: cd: can't cd to /tmp/mk4build.20221015-092924.ZL6KlF
+./mk4build: 104: let: not found
+./mk4build: 111: cd: can't cd to /tmp/mk4build.20221015-092924.ZL6KlF
+./mk4build: 104: let: not found
+./mk4build: 111: cd: can't cd to /tmp/mk4build.20221015-092924.ZL6KlF
+./mk4build: 104: let: not found
+./mk4build: 111: cd: can't cd to /tmp/mk4build.20221015-092924.ZL6KlF
+./mk4build: 104: let: not found
+./mk4build: 111: cd: can't cd to /tmp/mk4build.20221015-092924.ZL6KlF
+./mk4build: 104: let: not found
+./mk4build: 111: cd: can't cd to /tmp/mk4build.20221015-092924.ZL6KlF
+./mk4build: 104: let: not found
+./mk4build: 111: cd: can't cd to /tmp/mk4build.20221015-092924.ZL6KlF
+./mk4build: 104: let: not found
+./mk4build: 111: cd: can't cd to /tmp/mk4build.20221015-092924.ZL6KlF
+
+This reverts commit df1e070d30f583381b48fddd829bdde8efcdd16a.
+
+Signed-off-by: James Hilliard <james.hilliard1 at gmail.com>
+[Upstream status:
+https://github.com/brltty/brltty/pull/393]
+---
+ brltty-prologue.sh | 48 +++++++++++++---------------------------------
+ 1 file changed, 13 insertions(+), 35 deletions(-)
+
+diff --git a/brltty-prologue.sh b/brltty-prologue.sh
+index 05b817742..a4fa34053 100644
+--- a/brltty-prologue.sh
++++ b/brltty-prologue.sh
+@@ -94,41 +94,6 @@ logDetail() {
+    logMessage detail "${@}"
+ }
+ 
+-programTerminationCommandCount=0
+-
+-runProgramTerminationCommands() {
+-   set +e
+-
+-   while [ "${programTerminationCommandCount}" -gt 0 ]
+-   do
+-      set -- $(getVariable "programTerminationCommand${programTerminationCommandCount}")
+-      let "programTerminationCommandCount -= 1"
+-
+-      local process="${1}"
+-      local directory="${2}"
+-      shift 2
+-
+-      [ "${process}" = "${$}" ] && {
+-         cd "${directory}"
+-         "${@}"
+-      }
+-   done
+-}
+-
+-pushProgramTerminationCommand() {
+-   [ "${programTerminationCommandCount}" -gt 0 ] || trap runProgramTerminationCommands exit
+-   setVariable "programTerminationCommand$((programTerminationCommandCount += 1))" "${$} $(pwd) ${*}"
+-}
+-
+-needTemporaryDirectory() {
+-   [ -n "${temporaryDirectory}" ] || {
+-      umask 022
+-      [ -n "${TMPDIR}" -a -d "${TMPDIR}" -a -r "${TMPDIR}" -a -w "${TMPDIR}" -a -x "${TMPDIR}" ] || export TMPDIR="/tmp"
+-      temporaryDirectory="$(mktemp -d "${TMPDIR}/${programName}.$(date +"%Y%m%d-%H%M%S").XXXXXX")" && cd "${temporaryDirectory}" || exit "${?}"
+-      pushProgramTerminationCommand rm -f -r -- "${temporaryDirectory}"
+-   }
+-}
+-
+ resolveDirectory() {
+    local path="${1}"
+    local variable="${2}"
+@@ -512,6 +477,19 @@ verifyOutputDirectory() {
+    fi
+ }
+ 
++needTemporaryDirectory() {
++   cleanup() {
++      set +e
++      cd /
++      [ -z "${temporaryDirectory}" ] || rm -f -r -- "${temporaryDirectory}"
++   }
++   trap "cleanup" 0
++
++   umask 022
++   [ -n "${TMPDIR}" -a -d "${TMPDIR}" -a -r "${TMPDIR}" -a -w "${TMPDIR}" -a -x "${TMPDIR}" ] || export TMPDIR="/tmp"
++   temporaryDirectory="$(mktemp -d "${TMPDIR}/${programName}.XXXXXX")" && cd "${temporaryDirectory}" || exit "${?}"
++}
++
+ programParameterCount=0
+ programParameterCountMinimum=-1
+ programParameterLabelWidth=0
+-- 
+2.34.1
+
-- 
2.34.1