Build: Fix OSX build issues.

OSX does not support 'readlink -f' or 'sed -r'.  Replace readlink with
the GNU make macro 'realpath'.  Replace sed with grep in one place, cut
in the other.

ASTERISK-27332

Change-Id: I5d34ecca905384decb22ead45c913ae5e8aff748

1 files changed, 49 insertions, 1 deletions

diff --git a/configure b/configure
index f64883be1..8c13476e5 100755
--- a/configure
+++ b/configure
@@ -1249,6 +1249,7 @@ COMPRESS
 FIND
 PYTHON
 FLEX
+CUT
 CAT
 CMP
 BISON
@@ -6826,6 +6827,47 @@ $as_echo "no" >&6; }
 fi
 
 
+# Extract the first word of "cut", so it can be a program name with args.
+set dummy cut; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_CUT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $CUT in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_CUT="$CUT" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_CUT="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_CUT" && ac_cv_path_CUT=":"
+  ;;
+esac
+fi
+CUT=$ac_cv_path_CUT
+if test -n "$CUT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CUT" >&5
+$as_echo "$CUT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
 # Extract the first word of "flex", so it can be a program name with args.
 set dummy flex; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
@@ -9304,6 +9346,12 @@ $as_echo "configuring" >&6; }
 	if test "${CAT}" = ":" ; then
 		as_fn_error $? "cat is required to build bundled pjproject" "$LINENO" 5
 	fi
+	if test "${CUT}" = ":" ; then
+		as_fn_error $? "cut is required to build bundled pjproject" "$LINENO" 5
+	fi
+	if test "${GREP}" = ":" ; then
+		as_fn_error $? "grep is required to build bundled pjproject" "$LINENO" 5
+	fi
 
 
 	this_host=$(./config.sub $(./config.guess))
@@ -9314,7 +9362,7 @@ $as_echo "configuring" >&6; }
 		PJPROJECT_CONFIGURE_OPTS+=" --host=$host"
 	fi
 
-	export TAR PATCH SED NM EXTERNALS_CACHE_DIR AST_DOWNLOAD_CACHE DOWNLOAD_TO_STDOUT DOWNLOAD_TIMEOUT DOWNLOAD MD5 CAT
+	export TAR PATCH SED NM EXTERNALS_CACHE_DIR AST_DOWNLOAD_CACHE DOWNLOAD_TO_STDOUT DOWNLOAD_TIMEOUT DOWNLOAD MD5 CAT CUT GREP
 	export NOISY_BUILD
 	${GNU_MAKE} --quiet --no-print-directory -C ${PJPROJECT_DIR} \
 		PJPROJECT_CONFIGURE_OPTS="$PJPROJECT_CONFIGURE_OPTS" \