Using BUILT_SOURCES, pinba.pb-c.[ch] are built *before* the regular
build step.
if BUILD_PLUGIN_APACHE
pkglib_LTLIBRARIES += apache.la
apache_la_SOURCES = apache.c
if BUILD_PLUGIN_APACHE
pkglib_LTLIBRARIES += apache.la
apache_la_SOURCES = apache.c
endif
if BUILD_PLUGIN_PINBA
endif
if BUILD_PLUGIN_PINBA
+BUILT_SOURCES += pinba.pb-c.c pinba.pb-c.h
pkglib_LTLIBRARIES += pinba.la
pinba_la_SOURCES = pinba.c pinba.pb-c.c pinba.pb-c.h
pinba_la_LDFLAGS = -module -avoid-version
pkglib_LTLIBRARIES += pinba.la
pinba_la_SOURCES = pinba.c pinba.pb-c.c pinba.pb-c.h
pinba_la_LDFLAGS = -module -avoid-version