autotools: handle getgrgid_r on bionic

configure.ac

@@ -665,11 +665,7 @@ AC_CHECK_LIB(pthread, main)
 AC_CHECK_FUNCS(pthread_atfork)
 AC_CHECK_FUNCS(statvfs)
 AC_CHECK_LIB(util, openpty)
-AC_CHECK_FUNCS([openpty hasmntopt setmntent endmntent utmpxname])
-AC_CHECK_FUNCS([getgrgid_r],
-	AM_CONDITIONAL(HAVE_GETGRGID_R, true)
-	AC_DEFINE(HAVE_GETGRGID_R,1,[Have getgrgid_r]),
-	AM_CONDITIONAL(HAVE_GETGRGID_R, false))
+AC_CHECK_FUNCS([getgrgid_r openpty hasmntopt setmntent endmntent utmpxname])
 AC_CHECK_FUNCS([getline],
 	AM_CONDITIONAL(HAVE_GETLINE, true)
 	AC_DEFINE(HAVE_GETLINE,1,[Have getline]),

src/lxc/Makefile.am

@@ -44,6 +44,7 @@ noinst_HEADERS = \
 if IS_BIONIC
 noinst_HEADERS += \
 	../include/fexecve.h \
+	../include/getgrgid_r.h \
 	../include/ifaddrs.h \
 	../include/openpty.h \
 	../include/lxcmntent.h
@@ -59,10 +60,6 @@ if !HAVE_GETSUBOPT
 noinst_HEADERS += ../include/getsubopt.h
 endif
 
-if !HAVE_GETGRGID_R
-noinst_HEADERS += ../include/getgrgid_r.h
-endif
-
 sodir=$(libdir)
 
 LSM_SOURCES = \
@@ -142,6 +139,7 @@ endif
 if IS_BIONIC
 liblxc_la_SOURCES += \
 	../include/fexecve.c ../include/fexecve.h \
+	../include/getgrgid_r.c ../include/getgrgid_r.h \
 	../include/ifaddrs.c ../include/ifaddrs.h \
 	../include/openpty.c ../include/openpty.h \
 	../include/lxcmntent.c ../include/lxcmntent.h
@@ -326,10 +324,6 @@ if !HAVE_STRLCAT
 init_lxc_static_SOURCES += ../include/strlcat.c ../include/strlcat.h
 endif
 
-if !HAVE_GETGRGID_R
-liblxc_la_SOURCES += ../include/getgrgid_r.c ../include/getgrgid_r.h
-endif
-
 init_lxc_static_LDFLAGS = -all-static
 init_lxc_static_LDADD = @CAP_LIBS@
 init_lxc_static_CFLAGS = $(AM_CFLAGS) -DNO_LXC_CONF

src/lxc/conf.c

@@ -88,6 +88,10 @@
 #include "utils.h"
 #include "lsm/lsm.h"
 
+#if !HAVE_GETGRGID_R
+#include "../include/getgrgid_r.h"
+#endif
+
 #if HAVE_LIBCAP
 #include <sys/capability.h>
 #endif