2 files changed, 20 insertions, 0 deletions

diff --git a/recipes-extended/grep/grep-2.5.1a/autoconf270.patch b/recipes-extended/grep/grep-2.5.1a/autoconf270.patch
new file mode 100644
index 0000000..954ae14
--- /dev/null
+++ b/recipes-extended/grep/grep-2.5.1a/autoconf270.patch
@@ -0,0 +1,19 @@
+Update to work with autoconf 2.71
+
+The script needs CPP so add the appropriate macro.
+
+Upstream-Status: Inappropriate [needed for old GPLv2 version only]
+RP - 2021/1/28
+
+Index: grep-2.5.1a/configure.in
+===================================================================
+--- grep-2.5.1a.orig/configure.in
++++ grep-2.5.1a/configure.in
+@@ -27,6 +27,7 @@ AC_PROG_AWK
+ AC_PROG_CC
+ AC_PROG_INSTALL
+ AC_PROG_RANLIB
++AC_PROG_CPP
+ 
+ dnl Checks for typedefs, structures, and compiler characteristics.
+ AC_SYS_LARGEFILE
diff --git a/recipes-extended/grep/grep_2.5.1a.bb b/recipes-extended/grep/grep_2.5.1a.bb
index d3b4ddc..5445c7e 100644
--- a/recipes-extended/grep/grep_2.5.1a.bb
+++ b/recipes-extended/grep/grep_2.5.1a.bb
@@ -18,6 +18,7 @@ SRC_URI = "${GNU_MIRROR}/grep/grep-${PV}.tar.bz2 \
            file://grep-egrep-fgrep-Fix-LSB-NG-cases.patch \
            file://search-fix-compilation-error-with-security-flags-ena.patch \
            file://0001-Fix-builds-with-gettext-0.20.patch \
+           file://autoconf270.patch \
            "
 
 SRC_URI[md5sum] = "52202fe462770fa6be1bb667bd6cf30c"