discount: fix cpp check.

app-text/discount/discount-2.2.6.recipe

@@ -11,6 +11,7 @@ REVISION="1"
 SOURCE_URI="https://github.com/Orc/discount/archive/v$portVersion.tar.gz"
 SOURCE_FILENAME="discount-$portVersion.tar.gz"
 CHECKSUM_SHA256="0beb98a66a6e38ed125e2d0a161ff6b461f6a38538bb72498766f376c94a0ad3"
+PATCHES="discount-$portVersion.patchset"
 
 ARCHITECTURES="x86_gcc2 x86 x86_64"
 SECONDARY_ARCHITECTURES="x86_gcc2 x86"

app-text/discount/patches/discount-2.2.6.patchset

@@ -0,0 +1,27 @@
+From 5ad253c02c94d67b112245e9ca013ed353e6f8e5 Mon Sep 17 00:00:00 2001
+From: Jerome Duval <jerome.duval@gmail.com>
+Date: Sat, 30 Nov 2019 20:36:27 +0100
+Subject: cpp check would block on input.
+
+
+diff --git a/configure.inc b/configure.inc
+index fd0c9ba..0b246af 100755
+--- a/configure.inc
++++ b/configure.inc
+@@ -1674,11 +1674,11 @@ EOF
+ 	    echo "CPP=[$1], CPP_PIPE=[$2${use_cflags:+ $AC_CFLAGS}]"
+ 	    AC_SUB 'CPP' "$1"
+ 	    AC_CPP_FILTER="$1 $2${use_cflags:+ $AC_CFLAGS}"
+-	    rm ngc$$.c ngc$$.o
++	    rm -f ngc$$.c ngc$$.o
+ 	    return 0
+ 	fi
+     fi
+-    rm ngc$$.c ngc$$.o
++    rm -f ngc$$.c ngc$$.o
+     return 1
+ }
+ 
+-- 
+2.24.0
+