Add option to build with system opepgm

Signed-off-by: Mikko Koppanen <mkoppanen@php.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/autogen.sh b/autogen.sh
index 2cc40b9..75f1009 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -20,6 +20,12 @@
 
 # Script to generate all required files from fresh git checkout.
 
+command -v pkg-config >/dev/null 2>&1
+if  [ $? -ne 0 ]; then
+    echo "autogen.sh: error: could not find pkg-config.  pkg-config is required to run autogen.sh." 1>&2
+    exit 1
+fi
+
 command -v libtool >/dev/null 2>&1
 if  [ $? -ne 0 ]; then
     echo "autogen.sh: error: could not find libtool.  libtool is required to run autogen.sh." 1>&2