From 25d69826cf123ac23e4da742be281b5f2196e6fd Mon Sep 17 00:00:00 2001
From: Sandro Santilli <strk@keybit.net>
Date: Mon, 31 Dec 2012 15:18:55 +0000
Subject: [PATCH] Use grep found by ./configure (and have ./configure look for
 it)

git-svn-id: http://svn.osgeo.org/postgis/trunk@10942 b70326c6-7e19-0410-871a-916f4a2858ee
---
 configure.ac                            | 1 +
 extensions/postgis_topology/Makefile.in | 7 ++++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 6f430928a..f904246df 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,6 +25,7 @@ dnl
 AC_PROG_CC
 AC_PROG_CPP
 AC_PROG_CXX
+AC_PROG_GREP
 AC_PATH_PROG([ANT], [ant], [])
 AC_SUBST([ANT])
 
diff --git a/extensions/postgis_topology/Makefile.in b/extensions/postgis_topology/Makefile.in
index 19608a1db..6a55e8a4a 100644
--- a/extensions/postgis_topology/Makefile.in
+++ b/extensions/postgis_topology/Makefile.in
@@ -4,25 +4,26 @@ EXTENSION    = postgis_topology
 EXTVERSION    = @POSTGIS_LIB_VERSION@
 MINORVERSION  = @POSTGIS_MAJOR_VERSION@.@POSTGIS_MINOR_VERSION@
 PGIS_MAJ_MIN=@POSTGIS_MAJOR_VERSION@@POSTGIS_MINOR_VERSION@
+GREP=@GREP@
 
 MICRO_NUMBER  = $(shell echo $(EXTVERSION) | sed "s/[0-9]\.[0-9]\.\([0-9]*\)[a-zA-Z]*[0-9]*/\1/")
 PREREL_NUMBER = $(shell echo $(EXTVERSION) | \
                         sed "s/[0-9]\.[0-9]\.\(.*\)/\1/" | \
-                        grep "[a-zA-Z]" | \
+                        $(GREP) "[a-zA-Z]" | \
                         sed "s/[0-9][a-zA-Z]\([0-9]*\)[a-zA-Z]*/\1/")
 MICRO_PREV    = $(shell if test "$(MICRO_NUMBER)x" != "x"; then expr $(MICRO_NUMBER) - 1; fi)
 PREREL_PREV   = $(shell if test "$(PREREL_NUMBER)x" != "x"; then expr $(PREREL_NUMBER) - 1; fi)
 
 PREREL_PREFIX = $(shell echo $(EXTVERSION) | \
                         sed "s/[0-9]\.[0-9]\.\(.*\)/\1/" | \
-                        grep "[a-zA-Z]" | \
+                        $(GREP) "[a-zA-Z]" | \
                         sed "s/\([0-9][a-zA-Z]*\)[0-9]*/\1/")
 
 DATA         = $(filter-out $(wildcard sql/*--*.sql),$(wildcard sql/*.sql))
 
 PG_CONFIG    = @PGCONFIG@
 
-PG91         = $(shell $(PG_CONFIG) --version | grep -qE " 8\.| 9\.0" && echo no || echo yes)
+PG91         = $(shell $(PG_CONFIG) --version | $(GREP) -qE " 8\.| 9\.0" && echo no || echo yes)
 SQL_BITS     = $(wildcard sql_bits/*.sql)
 EXTRA_CLEAN += sql/*.sql ${SQL_BITS}
 
-- 
2.50.1