From 9386e2dd77f7a1046e8aab56b5e8183c56f8c863 Mon Sep 17 00:00:00 2001
From: Jaehyun Cho <jae_hyun.cho@samsung.com>
Date: Fri, 29 Jun 2018 14:43:03 +0900
Subject: [PATCH] configure: check if realpath program exists

Summary: If realpath program does not exist, then readlink program can be used.

Test Plan:
Execute configure and check the log "checking for realpath".
If realpath program does not exist, then "checking for readlink" log is also printed.

Reviewers: woohyun, lauromoura, devilhorns

Reviewed By: lauromoura

Subscribers: cedric, #committers, zmike

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D6470
---
 configure.ac | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 48782e88bf..fa8a570447 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1453,7 +1453,15 @@ AC_SUBST([CUSTOM_EXPORTS_MONO_DL_MONO])
 # Eos file/library mapping
 
 # Unescaped sed pattern: sed -n 's/src\/lib\/\([a-z0-9_]*\)\/[a-z\/]*\/\([a-z0-9\._]*\)/\2,\1/pg'
-_configure_path=`realpath $0`
+AC_CHECK_PROG([have_realpath], [realpath], [yes], [no])
+if test "x${have_realpath}" = "xyes" ; then
+  _configure_path=`realpath $0`
+else
+  AC_CHECK_PROG([have_readlink], [readlink], [yes], [no])
+  if test "x${have_readlink}" = "xyes" ; then
+    _configure_path=`readlink -f $0`
+  fi
+fi
 efl_mono_top_srcdir=`dirname ${_configure_path}`
 EFL_MONO_LIBRARY_MAP=`find ${efl_mono_top_srcdir}/src/lib/ -iname "*\.eo" | sed -n 's/.*\/src\/lib\/\(@<:@a-z0-9_@:>@*\)@<:@\/a-z@:>@*\/\(@<:@a-z0-9\._@:>@*\)/\2,\1/pg'`