diff --git a/xbps-src/libexec/xbps-src-doinst-helper.sh.in b/xbps-src/libexec/xbps-src-doinst-helper.sh.in
index 3196bc53e58..ba71c2a78bb 100644
--- a/xbps-src/libexec/xbps-src-doinst-helper.sh.in
+++ b/xbps-src/libexec/xbps-src-doinst-helper.sh.in
@@ -88,6 +88,8 @@ install_src_phase()
 			|| msg_error "can't change cwd to build_wrksrc!"
 	fi
 
+	set_build_vars
+
 	# Run pre_install func.
 	run_func pre_install 2>${wrksrc}/.xbps_pre_install.log \
 		|| msg_error "$pkgname: pre_install() failed! check $wrksrc/.xbps_pre_install.log"
@@ -115,6 +117,8 @@ install_src_phase()
 	run_func post_install 2>${wrksrc}/.xbps_post_install.log \
 		|| msg_error "$pkgname: post_install() failed! check $wrksrc/.xbps_post_install.log"
 
+	unset_build_vars
+
 	# Remove libtool archives by default.
 	if [ -z "$keep_libtool_archives" ]; then
 		find ${DESTDIR} -type f -name \*.la -delete
@@ -158,9 +162,11 @@ install_src_phase()
 		. $XBPS_SRCPKGDIR/${sourcepkg}/${subpkg}.template
 		pkgname=${subpkg}
 		set_tmpl_common_vars
+		set_build_vars
 		run_func do_install \
 			2>${wrksrc}/.xbps_do_install_${pkgname}.log || \
 			msg_error "$pkgname: do_install() failed! check $wrksrc/.xbps_do_install_$pkgname.log"
+		unset_build_vars
 	done
 
 	#
@@ -185,9 +191,7 @@ make_install()
 	fi
 
 	[ -z "$make_cmd" ] && make_cmd=make
-
 	. $XBPS_SHUTILSDIR/buildvars_funcs.sh
-	set_build_vars
 
 	#
 	# Install package via make.
@@ -195,9 +199,6 @@ make_install()
 	{ ${make_cmd} ${make_install_target} ${make_install_args} \
 		2>&1 | tee $wrksrc/.xbps_make_install.log; } \
 		|| msg_error "$pkgname: make install failed! check $wrksrc/.xbps_make_install.log"
-
-	# Unset build vars.
-	unset_build_vars
 }
 
 [ -z "$PKG_TMPLNAME" ] && exit 1
diff --git a/xbps-src/shutils/buildvars_funcs.sh b/xbps-src/shutils/buildvars_funcs.sh
index 4211a5f5551..73245484ae5 100644
--- a/xbps-src/shutils/buildvars_funcs.sh
+++ b/xbps-src/shutils/buildvars_funcs.sh
@@ -32,7 +32,10 @@ set_build_vars()
 {
 	if [ -z "$in_chroot" ]; then
 		SAVE_LDLIBPATH=$LD_LIBRARY_PATH
-		LD_LIBRARY_PATH="$XBPS_MASTERDIR/usr/lib:$LD_LIBRARY_PATH"
+		if [ -d /usr/lib/libfakeroot ]; then
+			LDLIBPATH="/usr/lib/libfakeroot"
+		fi
+		LD_LIBRARY_PATH="$LDLIBPATH:$XBPS_MASTERDIR/usr/lib:$LD_LIBRARY_PATH"
 		PKG_CONFIG="$XBPS_MASTERDIR/usr/bin/pkg-config"
 		PKG_CONFIG_LIBDIR="$XBPS_MASTERDIR/usr/lib/pkgconfig"
 		LDFLAGS="-L$XBPS_MASTERDIR/usr/lib"