From 598fd371adfa9d1a6b59d870342458e23c584db7 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Tue, 09 Oct 2012 16:27:03 -0400
Subject: Update configure.

Apply changes made to configure in opkbuild 3.0.0-alpha1
---
diff --git a/configure b/configure
index d74d3b6..2d6a814 100755
--- a/configure
+++ b/configure
@@ -23,17 +23,16 @@ package_name='opkhelper'
 package_version='2.0.0'
 package_description='opkg Build Helper Tools'
 
-srcdir=$(dirname "${0}")
-srcdir=$(cd ${srcdir} && pwd)
+srcdir="$(cd "${0%/*}" && pwd)"
 prefix='/usr/local'
 bindir='$(prefix)/bin'
-libdir='$(prefix)/lib/opkhelper'
+libdir='$(prefix)/share'
 datadir='$(prefix)/share'
 mandir='$(datadir)/man'
 localedir='$(datadir)/locale'
 
-quiet=false
-missing_deps=false
+quiet='false'
+missing_deps='false'
 dep_cmds='
 sh
 opkg
@@ -49,24 +48,58 @@ mandir
 localedir
 '
 
-features="${dep_cmds}"
+features="
+${dep_cmds}
+${dep_libs}
+${opt_dep_cmds}
+${opt_dep_libs}
+"
 
-subst_vars="package_name
+subst_vars="
+package_name
 package_version
 package_description
 ${long_opts_with_args}
-${dep_cmds}"
+${features}
+"
 
 main()
 {
 	parse_options "${@}"
+	shift ${optind}
+	if [ ${#} -ne 0 ]; then
+		print_usage
+		exit
+	fi
 
 	for dep in ${dep_cmds}; do
-		dep_val=$(eval echo \$\{"${dep}"\})
+		dep_name="$(printf '%s' "${dep}" | tr -c '[a-z0-9]' '_')"
+		dep_val="$(eval echo \$\{"${dep_name}"\})"
+		if [ -z "${dep_val}" ]; then
+			find_dep_cmd "${dep}" || missing_deps='true'
+		fi
+	done
+	for dep in ${dep_libs}; do
+		dep_name="$(printf '%s' "${dep}" | tr -c '[a-z0-9]' '_')"
+		dep_val="$(eval echo \$\{"${dep_name}"\})"
+		if [ -z "${dep_val}" ]; then
+			find_dep_lib "${dep}" || missing_deps='true'
+		fi
+	done
+	for dep in ${opt_dep_cmds}; do
+		dep_name="$(printf '%s' "${dep}" | tr -c '[a-z0-9]' '_')"
+		dep_val="$(eval echo \$\{"${dep_name}"\})"
 		if [ -z "${dep_val}" ]; then
 			find_dep_cmd "${dep}"
 		fi
 	done
+	for dep in ${opt_dep_libs}; do
+		dep_name="$(printf '%s' "${dep}" | tr -c '[a-z0-9]' '_')"
+		dep_val="$(eval echo \$\{"${dep_name}"\})"
+		if [ -z "${dep_val}" ]; then
+			find_dep_lib "${dep}"
+		fi
+	done
 
 	if ${missing_deps}; then
 		cat <<EOF
@@ -91,30 +124,34 @@ print_usage()
 print_help()
 {
 	cat <<EOF
-\`configure' configures ${PACKAGE} ${VERSION} to adapt to many kinds of systems.
+\`configure' configures ${package_name} ${package_version} to adapt to many \
+kinds of systems.
 
 $(print_usage)
 
 Configuration:
-  -h, --help            display this help and exit
-  -V, --version         display version information and exit
-  -q, --quiet           do not print \`checking ...' messages
-      --srcdir=SRCDIR   find the scripts in SRCDIR
-                        default: configure dir
+  -h, --help              display this help and exit
+  -V, --version           display version information and exit
+  -q, --quiet             do not print \`checking ...' messages
+      --srcdir=SRCDIR     find the scripts in SRCDIR
+                          default: configure dir
 
 Installation directories:
-  --prefix=PREFIX       install files under PREFIX
-                        default: /usr/local
-  --bindir=BINDIR       install scripts in BINDIR
-                        default: PREFIX/bin
-  --libdir=LIBDIR       install library scripts in LIBDIR
-                        default: PREFIX/lib
-  --datadir=DATADIR     expect to find data in DATADIR
-                        default: PREFIX/share
-  --mandir=MANDIR       install manual pages in MANDIR
-                        default: DATADIR/man
-  --localedir=LOCALEDIR install locales in LOCALEDIR
-                        default: DATADIR/man
+  --prefix=PREFIX         install files under PREFIX
+                          default: /usr/local
+  --bindir=BINDIR         install scripts in BINDIR
+                          default: PREFIX/bin
+  --libdir=LIBDIR         install library scripts in LIBDIR
+                          default: PREFIX/lib
+  --datadir=DATADIR       expect to find data in DATADIR
+                          default: PREFIX/share
+  --mandir=MANDIR         install manual pages in MANDIR
+                          default: DATADIR/man
+  --localedir=LOCALEDIR   install locales in LOCALEDIR
+                          default: DATADIR/locale
+
+Dependencies:
+  --with-sh=PATH          use sh at PATH
 EOF
 }
 
@@ -133,12 +170,14 @@ EOF
 
 parse_options()
 {
+	optind=0
+
 	for _opt; do
 
 		# Handle arguments of "--opt arg" options.
 		if [ -n "${_prev}" ]; then
-			eval "${_prev}=\$\{_opt\}"
-			_prev=
+			eval "${_prev}"=\"\$\{_opt\}\"
+			_prev=''
 			continue
 		fi
 
@@ -147,10 +186,10 @@ parse_options()
 			*=*)
 				_optarg="${_opt#*=}"
 				_opt="${_opt%=*}"
-				_optarg_set=true
+				_optarg_set='true'
 				;;
 			*)
-				_optarg_set=false
+				_optarg_set='false'
 				;;
 		esac
 
@@ -168,7 +207,7 @@ parse_options()
 				exit 0
 				;;
 			-q|--quiet)
-				quiet=true
+				quiet='true'
 				continue
 				;;
 		esac
@@ -178,16 +217,15 @@ parse_options()
 			--with-*)
 				_opt="${_opt#--with-}"
 				_opts="${features}"
-				_type=package
+				_type='package'
 				;;
 			--*)
 				_opt="${_opt#--}"
 				_opts="${long_opts_with_args}"
-				_type=option
+				_type='option'
 				;;
 			*)
-				printf 'unrecognized option: %s\n' "${_opt}" >&2
-				exit 1
+				break
 				;;
 		esac
 
@@ -199,11 +237,14 @@ EOF
 			exit 1
 		fi
 		if ${_optarg_set}; then
-			eval ${_opt}=\$\{_optarg\}
+			_opt="$(printf '%s' "${_opt}" | tr -c '[a-z0-9]' '_')"
+			eval "${_opt}"=\"\$\{_optarg\}\"
 		else
 			_prev="${_opt}"
 		fi
 
+		optind=$(($optind + 1))
+
 	done
 }
 
@@ -211,36 +252,61 @@ find_dep_cmd()
 {
 	_dep="${1}"
 
-	${quiet} || printf 'checking for %s... ' "${dep}"
+	${quiet} || printf 'checking for %s... ' "${_dep}"
 
-	_old_ifs="${IFS}"
-	IFS=:
+	IFS=':'
 
 	for _element in ${PATH}; do
+		unset IFS
 		: ${_element=-.}
 		if [ -f "${_element}/${_dep}" -a -x "${_element}/${_dep}" ]; then
 			${quiet} || printf '%s/%s\n' "${_element}" "${_dep}"
-			eval "${_dep}=${_element}/${_dep}"
-			IFS="${_old_ifs}"
+			eval "${_dep}"=\"${_element}/${_dep}\"
 			return 0
 		fi
 	done
 
-	IFS="${_old_ifs}"
+	unset IFS
+
+	${quiet} || printf 'not found\n'
+	return 1
+}
+
+find_dep_lib()
+{
+	_dep="${1}"
+
+	${quiet} || printf 'checking for %s... ' "${_dep}"
+
+	IFS=':'
+
+	for _element in ${libdir}:${PATH}; do
+		unset IFS
+		: ${_element=-.}
+		if [ -f "${_element}/${_dep}" -a -x "${_element}/${_dep}" ]; then
+			${quiet} || printf '%s/%s\n' "${_element}" "${_dep}"
+			eval "${_dep}"=\"${_element}/${_dep}\"
+			return 0
+		fi
+	done
+
+	unset IFS
+
 	${quiet} || printf 'not found\n'
-	missing_deps=true
 	return 1
 }
 
 write_makefiles()
 {
 	# Make a script to edit input makefiles.
-	_sed_script=
+	_sed_script=''
 	for _var in ${subst_vars}; do
+		_var="$(printf '%s' "${_var}" | tr -c '[a-z0-9]' '_')"
 		_sed_script="${_sed_script}s&@${_var}@&$(eval echo \$\{"${_var}"\})&g;"
 	done
 
 	for _dir in . src lib locale man; do
+		mkdir -p "${_dir}"
 		sed "${_sed_script}" "${srcdir}/${_dir}/Makefile.in" >"${_dir}/Makefile"
 	done
 }
--
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