PKG_PROG_PKG_CONFIG
AC_CHECK_PROG([have_protoc_c], [protoc-c], [yes], [no])
-AC_CHECK_HEADERS([google/protobuf-c/protobuf-c.h],
- [have_protobuf_c_h="yes"],
- [have_protobuf_c_h="no"])
-if test "x$have_protoc_c" = "xyes" && test "x$have_protobuf_c_h" != "xyes"
+if test "x$have_protoc_c" = "xno"
then
- have_protoc_c="no (unable to find <google/protobuf-c/protobuf-c.h>)"
+ have_protoc_c="no (protoc-c compiler not found)"
+fi
+
+if test "x$have_protoc_c" = "xyes"
+then
+ AC_CHECK_HEADERS([protobuf-c/protobuf-c.h google/protobuf-c/protobuf-c.h],
+ [have_protoc_c="yes"; break],
+ [have_protoc_c="no (<google/protobuf-c/protobuf-c.h> not found)"])
+fi
+if test "x$have_protoc_c" = "xyes"
+then
+ AC_CHECK_LIB([protobuf-c], [protobuf_c_version],
+ [have_protoc_c="yes"],
+ [have_protoc_c="no (libprotobuf-c not found)"])
+
fi
AM_CONDITIONAL(HAVE_PROTOC_C, test "x$have_protoc_c" = "xyes")