hashdeep: Fix building pie binaries

packages/hashdeep/build.sh

@@ -1,9 +1,8 @@
 TERMUX_PKG_HOMEPAGE=http://md5deep.sourceforge.net/
-TERMUX_PKG_DESCRIPTION="a set of programs to compute MD5, SHA-1, SHA-256, Tiger, or Whirlpool message digests on an arbitrary number of files"
+TERMUX_PKG_DESCRIPTION="Programs to compute hashsums of arbitrary number of files recursively"
 TERMUX_PKG_VERSION=4.4
 TERMUX_PKG_SRCURL=https://github.com/jessek/hashdeep/archive/v$TERMUX_PKG_VERSION.tar.gz
 TERMUX_PKG_SHA256=ad78d42142f9a74fe8ec0c61bc78d6588a528cbb9aede9440f50b6ff477f3a7f
-TERMUX_PKG_FOLDERNAME=hashdeep-$TERMUX_PKG_VERSION
 
 termux_step_pre_configure () {
 	sh bootstrap.sh

packages/hashdeep/configure.ac.patch

@@ -0,0 +1,23 @@
+Remove -MD option as that avoids pie wrapper script functionality.
+
+diff -u -r ../hashdeep-4.4/configure.ac ./configure.ac
+--- ../hashdeep-4.4/configure.ac	2015-04-01 02:12:52.000000000 +0200
++++ ./configure.ac	2017-09-23 02:18:08.770776322 +0200
+@@ -64,7 +64,7 @@
+ ################################################################
+ ### I am a glutten for punishment and this is security-critical software
+ # Check GCC
+-WARNINGS_TO_TEST="-MD -D_FORTIFY_SOURCE=2 -Wpointer-arith -Wmissing-declarations -Wmissing-prototypes \
++WARNINGS_TO_TEST="-D_FORTIFY_SOURCE=2 -Wpointer-arith -Wmissing-declarations -Wmissing-prototypes \
+     -Wshadow -Wwrite-strings -Wcast-align -Waggregate-return \
+     -Wbad-function-cast -Wcast-qual -Wundef -Wredundant-decls -Wdisabled-optimization \
+     -Wfloat-equal -Wmissing-format-attribute -Wmultichar -Wc++-compat -Wmissing-noreturn  -funit-at-a-time"
+@@ -97,7 +97,7 @@
+ # -Wcast-qual 
+ # -Wmissing-format-attribute  - can't get this one right
+ AC_LANG_PUSH(C++)
+-WARNINGS_TO_TEST="-Wall -MD -D_FORTIFY_SOURCE=2 -Wpointer-arith \
++WARNINGS_TO_TEST="-Wall -D_FORTIFY_SOURCE=2 -Wpointer-arith \
+     -Wshadow -Wwrite-strings -Wcast-align  \
+     -Wredundant-decls -Wdisabled-optimization \
+     -Wfloat-equal -Wmultichar -Wmissing-noreturn \