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build: use pkg-config to discover libcap-ng 

We're already relying on the pkg.m4 macro file for glib, so we can
rely on the same for libcap-ng.

Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
This commit is contained in:
Diego Elio Pettenò 2012-04-09 11:57:10 -07:00 committed by Neil Horman
parent 29b049f1f9
commit c88c47ad0e
3 changed files with 23 additions and 46 deletions
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9
Makefile.am
View File

@ -22,18 +22,17 @@
AUTOMAKE_OPTIONS = no-dependencies
ACLOCAL_AMFLAGS = -I m4
EXTRA_DIST = INSTALL COPYING autogen.sh m4/cap-ng.m4 misc/irqbalance.service
EXTRA_DIST = INSTALL COPYING autogen.sh misc/irqbalance.service
INCLUDES = -I${top_srcdir}
LIBS = $(CAPNG_LDADD) @LIBS@
AM_CFLAGS = $(GLIB_CFLAGS)
AM_CFLAGS = $(LIBCAP_NG_CFLAGS) $(GLIB_CFLAGS)
AM_CPPFLAGS = -W -Wall -Wshadow -Wformat -Wundef -D_GNU_SOURCE
noinst_HEADERS = bitmap.h constants.h cpumask.h irqbalance.h non-atomic.h \
types.h
sbin_PROGRAMS = irqbalance
irqbalance_SOURCES = activate.c bitmap.c classify.c cputree.c irqbalance.c \
irqlist.c numa.c placement.c powermode.c procinterrupts.c
irqbalance_LDADD = $(CAPNG_LDADD) $(GLIB_LIBS)
irqbalance_LDADD = $(LIBCAP_NG_LIBS) $(GLIB_LIBS)
dist_man_MANS = irqbalance.1
CONFIG_CLEAN_FILES = debug*.list config/*

20
configure.ac
View File

@ -60,7 +60,25 @@ AS_IF(
AM_CONDITIONAL([LOCAL_GLIB], [test "x$local_glib2" = "xyes"])
LIBCAP_NG_PATH
AC_ARG_WITH([libcap-ng],
AS_HELP_STRING([libcap-ng], [Add libcap-ng-support @<:@default=auto@:>@]))
AS_IF(
[test "x$libcap_ng" != "xno"],
[
PKG_CHECK_MODULES([LIBCAP_NG], [libcap-ng],
[AC_DEFINE(HAVE_LIBCAP_NG,1,[libcap-ng support])],
[
AS_IF(
[test "x$libcap_ng" = "xyes"],
[
AC_MSG_ERROR([libcap-ng not found])
]
)
]
)
]
)
AC_OUTPUT(Makefile glib-local/Makefile)

40
m4/cap-ng.m4
View File

@ -1,40 +0,0 @@
# libcap-ng.m4 - Checks for the libcap-ng support
# Copyright (c) 2009 Steve Grubb sgrubb@redhat.com
#
AC_DEFUN([LIBCAP_NG_PATH],
[
AC_ARG_WITH(libcap-ng,
[ --with-libcap-ng=[auto/yes/no] Add Libcap-ng support [default=auto]],,
with_libcap_ng=auto)
# Check for Libcap-ng API
#
# libcap-ng detection
if test x$with_libcap_ng = xno ; then
have_libcap_ng=no;
else
# Start by checking for header file
AC_CHECK_HEADER(cap-ng.h, capng_headers=yes, capng_headers=no)
# See if we have libcap-ng library
AC_CHECK_LIB(cap-ng, capng_clear,
CAPNG_LDADD=-lcap-ng,)
# Check results are usable
if test x$with_libcap_ng = xyes -a x$CAPNG_LDADD = x ; then
AC_MSG_ERROR(libcap-ng support was requested and the library was not found)
fi
if test x$CAPNG_LDADD != x -a $capng_headers = no ; then
AC_MSG_ERROR(libcap-ng libraries found but headers are missing)
fi
fi
AC_SUBST(CAPNG_LDADD)
AC_MSG_CHECKING(whether to use libcap-ng)
if test x$CAPNG_LDADD != x ; then
AC_DEFINE(HAVE_LIBCAP_NG,1,[libcap-ng support])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
])