gdb: Use python executable for detecting python.

mingw-w64-gdb/PKGBUILD

@@ -5,7 +5,7 @@ _mingw_suff=mingw-w64-${CARCH}
 _gcc_ver=4.8.2
 pkgname=("${_mingw_suff}-${_realname}")
 pkgver=7.7
-pkgrel=3
+pkgrel=4
 pkgdesc="GNU Debugger (mingw-w64)"
 arch=('any')
 url="http://www.gnu.org/software/gdb/"
@@ -73,7 +73,7 @@ build() {
 		--disable-win32-registry \
 		--disable-rpath \
 		--with-system-gdbinit=${MINGW_PREFIX}/etc/gdbinit \
-		--with-python=${MINGW_PREFIX}/bin/python-config.sh \
+		--with-python=${MINGW_PREFIX}/bin/python2 \
 		--with-expat \
 		--with-libiconv-prefix=${MINGW_PREFIX} \
 		--with-zlib \