[libvirt] [PATCH 18/29] Add LIBVIRT_CHECK_PKG wrapper around pkg-config

From: "Daniel P. Berrange" <berrange(a)redhat.com&gt; To simplify use of PKG_CHECK_MODULES in association with a --with-XXX arg, introduce LIBVIRT_CHECK_PKG Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com&gt; --- m4/virt-lib.m4 | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) diff --git a/m4/virt-lib.m4 b/m4/virt-lib.m4 index 86a6aa0..cff9ac7 100644 --- a/m4/virt-lib.m4 +++ b/m4/virt-lib.m4 @@ -197,6 +197,62 @@ AC_DEFUN([LIBVIRT_CHECK_LIB_FALLBACK],[ ]) dnl +dnl Probe for existance of libXXXX and set WITH_XXX +dnl config header var, WITH_XXXX make conditional and +dnl with_XXX configure shell var. +dnl +dnl LIBVIRT_CHECK_PKG([WITH_VAR],[NAME_VAR],[LIBNAME],[FUNCNAME],[HDRNAME]) +dnl +dnl WITH_VAR: Suffix for the WITH_XXX variable in config.h & conditional in make, +dnl and prefix for the XXX_CFLAGS and XXX_LIBS make variables +dnl NAME_VAR: Suffix for the --with-XXX configure arg and $with_XXX configure variable +dnl PKG_NAME: Name of the pkg-config module +dnl PKG_VER: Version of the pkg-config module +dnl +dnl eg +dnl +dnl LIBVIRT_CHECK_PKG([NETCF],[netcf],[netcf], [0.1.4]) +dnl +AC_DEFUN([LIBVIRT_CHECK_PKG],[ + AS_VAR_PUSHDEF([mod_var],[$1]) + AS_VAR_PUSHDEF([config_var],[WITH_$1]) + AS_VAR_PUSHDEF([make_var],[WITH_$1]) + AS_VAR_PUSHDEF([cflags_var],[$1_CFLAGS]) + AS_VAR_PUSHDEF([libs_var],[$1_LIBS]) + AS_VAR_PUSHDEF([name_var],[$2]) + AS_VAR_PUSHDEF([arg_var],[with-$2]) + AS_VAR_PUSHDEF([with_var],[with_$2]) + dnl AS_VAR_PUSHDEF([pkk_name],[$3]) + dnl AS_VAR_PUSHDEF([pkg_ver],[$4]) + + AC_ARG_WITH([name_var], + AC_HELP_STRING([--arg_var], + [with $3 support @<:@default=check@:>@]),[],[with_var][=check]) + + fail=0 + if test "$with_var" != "no" ; then + PKG_CHECK_MODULES(mod_var, $3 >= $4,[ + AS_VAR_SET([with_var],[yes]) + ],[ + if test "$with_var" != "check"; then + fail=1 + fi + AS_VAR_SET([with_var],[no]) + ]) + fi + + if test $fail = 1; then + AC_MSG_ERROR([You must install the $3 pkg-config module to compile libvirt]) + fi + + if test "$with_var" = "yes" ; then + AC_DEFINE_UNQUOTED(config_var, 1, [whether $3 is available]) + fi + + AM_CONDITIONAL(make_var, [test "$with_var" = "yes"]) +]) + +dnl dnl To be called after a LIBVIRT_CHECK_LIB or LIBVIRT_CHECK_LIB_FALLBACK dnl invocation to print the result status dnl -- 1.7.11.4