webserver: use pthreads to handle multiple clients

[apt.git] / cmdline / apt-internal-solver.cc

diff --git a/cmdline/apt-internal-solver.cc b/cmdline/apt-internal-solver.cc
index aef7636e9b8eb775bb55053448c9a6a472ea4bb5..53b38ea43ab3758642ed77a7afacdab3f1258d87 100644 (file)
--- a/cmdline/apt-internal-solver.cc
+++ b/cmdline/apt-internal-solver.cc
@@ -19,6 +19,7 @@
 #include <apt-pkg/algorithms.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/pkgsystem.h>
+#include <apt-pkg/upgrade.h>
 
 #include <unistd.h>
 #include <cstdio>