userspace: Extend CFLAGS of libscap.pc and libsinsp.pc.
Upstream status: https://github.com/falcosecurity/libs/pull/1842

diff --git a/userspace/libscap/libscap.pc.in b/userspace/libscap/libscap.pc.in
index 40b6e96ed..a379744f3 100644
--- a/userspace/libscap/libscap.pc.in
+++ b/userspace/libscap/libscap.pc.in
@@ -7,4 +7,4 @@ Description: lib for System CAPture
 Version: @FALCOSECURITY_LIBS_VERSION@
 
 Libs: -L${libdir} @LIBSCAP_LINK_LIBDIRS_FLAGS@ @LIBSCAP_LINK_LIBRARIES_FLAGS@
-Cflags: -I${includedir}/@LIBS_PACKAGE_NAME@/libscap
+Cflags: -I${includedir}/@LIBS_PACKAGE_NAME@/libscap -I${includedir}/@LIBS_PACKAGE_NAME@/driver -I${includedir}/@LIBS_PACKAGE_NAME@
diff --git a/userspace/libsinsp/libsinsp.pc.in b/userspace/libsinsp/libsinsp.pc.in
index c1cc4a1e2..9292e73ce 100644
--- a/userspace/libsinsp/libsinsp.pc.in
+++ b/userspace/libsinsp/libsinsp.pc.in
@@ -8,4 +8,4 @@ Version: @FALCOSECURITY_LIBS_VERSION@
 
 Requires: libscap
 Libs: -L${libdir} -lsinsp @SINSP_PKG_CONFIG_LIBDIRS@ @SINSP_PKG_CONFIG_LIBS@
-Cflags: -I${includedir}/@LIBS_PACKAGE_NAME@/libsinsp @SINSP_PKG_CONFIG_INCLUDES@
+Cflags: -I${includedir}/@LIBS_PACKAGE_NAME@/libsinsp -I${includedir}/@LIBS_PACKAGE_NAME@/driver -I${includedir}/@LIBS_PACKAGE_NAME@ @SINSP_PKG_CONFIG_INCLUDES@