gdb: enable python support

packages/gdb/build.sh

@@ -2,20 +2,22 @@ TERMUX_PKG_HOMEPAGE=https://www.gnu.org/software/gdb/
 TERMUX_PKG_DESCRIPTION="The standard GNU Debugger that runs on many Unix-like systems and works for many programming languages"
 TERMUX_PKG_LICENSE="GPL-3.0"
 TERMUX_PKG_VERSION=8.3.1
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SRCURL=https://mirrors.kernel.org/gnu/gdb/gdb-${TERMUX_PKG_VERSION}.tar.xz
 TERMUX_PKG_SHA256=1e55b4d7cdca7b34be12f4ceae651623aa73b2fd640152313f9f66a7149757c4
 TERMUX_PKG_DEPENDS="libc++, liblzma, libexpat, readline, ncurses, libmpfr, zlib"
+TERMUX_PKG_SUGGEST="python"
 TERMUX_PKG_BREAKS="gdb-dev"
 TERMUX_PKG_REPLACES="gdb-dev"
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
 --with-system-readline
 --with-curses
+--with-python=$TERMUX_PREFIX/bin/python
 ac_cv_func_getpwent=no
 ac_cv_func_getpwnam=no
 "
-TERMUX_PKG_RM_AFTER_INSTALL="share/gdb/python share/gdb/syscalls share/gdb/system-gdbinit"
+TERMUX_PKG_RM_AFTER_INSTALL="share/gdb/syscalls share/gdb/system-gdbinit"
 TERMUX_PKG_MAKE_INSTALL_TARGET="-C gdb install"
-TERMUX_PKG_BUILD_IN_SRC=true
 
 termux_step_pre_configure() {
 	# Fix "undefined reference to 'rpl_gettimeofday'" when building:

packages/gdb/python.patch

@@ -0,0 +1,27 @@
+--- ../gdb-configure.orig	2019-12-30 14:01:28.446832655 +0100
++++ ./gdb/configure	2019-12-30 14:02:57.909984715 +0100
+@@ -10485,21 +10485,21 @@
+     # We have a python program to use, but it may be too old.
+     # Don't flag an error for --with-python=auto (the default).
+     have_python_config=yes
+-    python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
++    python_includes=`@TERMUX_PREFIX@/bin/python-config --includes`
+     if test $? != 0; then
+       have_python_config=failed
+       if test "${with_python}" != auto; then
+         as_fn_error $? "failure running python-config --includes" "$LINENO" 5
+       fi
+     fi
+-    python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
++    python_libs=`@TERMUX_PREFIX@/bin/python-config --ldflags`
+     if test $? != 0; then
+       have_python_config=failed
+       if test "${with_python}" != auto; then
+         as_fn_error $? "failure running python-config --ldflags" "$LINENO" 5
+       fi
+     fi
+-    python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
++    python_prefix=`@TERMUX_PREFIX@/bin/python-config --exec-prefix`
+     if test $? != 0; then
+       have_python_config=failed
+       if test "${with_python}" != auto; then