diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/gssapi.m4 | 114 | ||||
| -rw-r--r-- | m4/krb5-config.m4 | 101 | ||||
| -rw-r--r-- | m4/krb5.m4 | 206 | ||||
| -rw-r--r-- | m4/lib-depends.m4 | 9 | ||||
| -rw-r--r-- | m4/lib-pathname.m4 | 10 | ||||
| -rw-r--r-- | m4/remctl.m4 | 94 | ||||
| -rw-r--r-- | m4/snprintf.m4 | 9 | ||||
| -rw-r--r-- | m4/vamacros.m4 | 9 |
8 files changed, 419 insertions, 133 deletions
diff --git a/m4/gssapi.m4 b/m4/gssapi.m4 index 0a657ff..c596609 100644 --- a/m4/gssapi.m4 +++ b/m4/gssapi.m4 @@ -3,7 +3,8 @@ dnl dnl Finds the compiler and linker flags for linking with GSS-API libraries. dnl Provides the --with-gssapi, --with-gssapi-include, and --with-gssapi-lib dnl configure option to specify a non-standard path to the GSS-API libraries. -dnl Uses krb5-config where available unless reduced dependencies is requested. +dnl Uses krb5-config where available unless reduced dependencies is requested +dnl or --with-gssapi-include or --with-gssapi-lib are given. dnl dnl Provides the macro RRA_LIB_GSSAPI and sets the substitution variables dnl GSSAPI_CPPFLAGS, GSSAPI_LDFLAGS, and GSSAPI_LIBS. Also provides @@ -11,13 +12,34 @@ dnl RRA_LIB_GSSAPI_SWITCH to set CPPFLAGS, LDFLAGS, and LIBS to include the dnl GSS-API libraries, saving the ecurrent values, and RRA_LIB_GSSAPI_RESTORE dnl to restore those settings to before the last RRA_LIB_GSSAPI_SWITCH. dnl -dnl Depends on RRA_ENABLE_REDUCED_DEPENDS and RRA_SET_LDFLAGS. +dnl Also provides RRA_INCLUDES_KRB5, which are the headers to include when +dnl probing the Kerberos library properties. +dnl +dnl Depends on RRA_KRB5_CONFIG, RRA_ENABLE_REDUCED_DEPENDS, and +dnl RRA_SET_LDFLAGS. +dnl +dnl The canonical version of this file is maintained in the rra-c-util +dnl package, available at <http://www.eyrie.org/~eagle/software/rra-c-util/>. dnl dnl Written by Russ Allbery <rra@stanford.edu> -dnl Copyright 2005, 2006, 2007, 2008, 2009 -dnl Board of Trustees, Leland Stanford Jr. University +dnl Copyright 2005, 2006, 2007, 2008, 2009, 2011, 2012 +dnl The Board of Trustees of the Leland Stanford Junior University dnl -dnl See LICENSE for licensing terms. +dnl This file is free software; the authors give unlimited permission to copy +dnl and/or distribute it, with or without modifications, as long as this +dnl notice is preserved. + +dnl Headers to include when probing for Kerberos library properties. +AC_DEFUN([RRA_INCLUDES_GSSAPI], [[ +#ifdef HAVE_GSSAPI_GSSAPI_H +# include <gssapi/gssapi.h> +#else +# include <gssapi.h> +#endif +#ifdef HAVE_GSSAPI_GSSAPI_KRB5_H +# include <gssapi/gssapi_krb5.h> +#endif +]]) dnl Save the current CPPFLAGS, LDFLAGS, and LIBS settings and switch to dnl versions that include the GSS-API flags. Used as a wrapper, with @@ -68,18 +90,18 @@ AC_DEFUN([_RRA_LIB_GSSAPI_MANUAL], [RRA_LIB_GSSAPI_SWITCH rra_gssapi_extra= LIBS= - AC_SEARCH_LIBS([res_search], [resolv], , + AC_SEARCH_LIBS([res_search], [resolv], [], [AC_SEARCH_LIBS([__res_search], [resolv])]) AC_SEARCH_LIBS([gethostbyname], [nsl]) - AC_SEARCH_LIBS([socket], [socket], , - [AC_CHECK_LIB([nsl], [socket], [LIBS="-lnsl -lsocket $LIBS"], , + AC_SEARCH_LIBS([socket], [socket], [], + [AC_CHECK_LIB([nsl], [socket], [LIBS="-lnsl -lsocket $LIBS"], [], [-lsocket])]) AC_SEARCH_LIBS([crypt], [crypt]) + AC_SEARCH_LIBS([roken_concat], [roken]) rra_gssapi_extra="$LIBS" LIBS="$rra_gssapi_save_LIBS" AC_CHECK_LIB([gssapi], [gss_import_name], - [GSSAPI_LIBS="-lgssapi -lkrb5 -lasn1 -lroken -lcrypto -lcom_err" - GSSAPI_LIBS="$GSSAPI_LIBS $rra_gssapi_extra"], + [GSSAPI_LIBS="-lgssapi -lkrb5 -lasn1 -lcrypto -lcom_err $rra_gssapi_extra"], [AC_CHECK_LIB([krb5support], [krb5int_getspecific], [rra_gssapi_extra="-lkrb5support $rra_gssapi_extra"], [AC_CHECK_LIB([pthreads], [pthread_setspecific], @@ -88,7 +110,7 @@ AC_DEFUN([_RRA_LIB_GSSAPI_MANUAL], [rra_gssapi_pthread="-lpthread"])]) AC_CHECK_LIB([krb5support], [krb5int_setspecific], [rra_gssapi_extra="-lkrb5support $rra_gssapi_extra" - rra_gssapi_extra="$rra_gssapi_extra $rra_gssapi_pthread"], , + rra_gssapi_extra="$rra_gssapi_extra $rra_gssapi_pthread"], [], [$rra_gssapi_pthread])]) AC_CHECK_LIB([com_err], [error_message], [rra_gssapi_extra="-lcom_err $rra_gssapi_extra"]) @@ -101,7 +123,7 @@ AC_DEFUN([_RRA_LIB_GSSAPI_MANUAL], [GSSAPI_LIBS="-lgss"], [AC_MSG_ERROR([cannot find usable GSS-API library])])], [$rra_gssapi_extra])], - [-lkrb5 -lasn1 -lroken -lcrypto -lcom_err $rra_gssapi_extra]) + [-lkrb5 -lasn1 -lcrypto -lcom_err $rra_gssapi_extra]) RRA_LIB_GSSAPI_RESTORE]) dnl Sanity-check the results of krb5-config and be sure we can really link a @@ -116,6 +138,44 @@ AC_DEFUN([_RRA_LIB_GSSAPI_CHECK], _RRA_LIB_GSSAPI_PATHS _RRA_LIB_GSSAPI_MANUAL])]) +dnl Determine GSS-API compiler and linker flags from krb5-config. +AC_DEFUN([_RRA_LIB_GSSAPI_CONFIG], +[RRA_KRB5_CONFIG([${rra_gssapi_root}], [gssapi], [GSSAPI], + [_RRA_LIB_GSSAPI_CHECK], + [_RRA_LIB_GSSAPI_PATHS + _RRA_LIB_GSSAPI_MANUAL])]) + +dnl Check for a header using a file existence check rather than using +dnl AC_CHECK_HEADERS. This is used if there were arguments to configure +dnl specifying the GSS-API library path, since we may have one header in the +dnl default include path and another under our explicitly-configured GSS-API +dnl location. +AC_DEFUN([_RRA_LIB_GSSAPI_CHECK_HEADER], +[AC_MSG_CHECKING([for $1]) + AS_IF([test -f "${rra_gssapi_incroot}/$1"], + [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1]), [1], + [Define to 1 if you have the <$1> header file.]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])])]) + +dnl Determine the GSS-API header location and probe for some other +dnl characteristics of the libraries. We use a file existence check rather +dnl than letting the compiler probe for the right header location +AC_DEFUN([_RRA_LIB_GSSAPI_EXTRA], +[rra_gssapi_incroot= + AS_IF([test x"$rra_gssapi_includedir" != x], + [rra_gssapi_incroot="$rra_gssapi_includedir"], + [AS_IF([test x"$rra_gssapi_root" != x], + [rra_gssapi_incroot="${rra_gssapi_root}/include"])]) + AS_IF([test x"$rra_gssapi_incroot" = x], + [AC_CHECK_HEADERS([gssapi/gssapi.h gssapi/gssapi_krb5.h])], + [_RRA_LIB_GSSAPI_CHECK_HEADER([gssapi/gssapi.h]) + _RRA_LIB_GSSAPI_CHECK_HEADER([gssapi/gssapi_krb5.h])]) + AC_CHECK_DECL([GSS_C_NT_USER_NAME], + [AC_DEFINE([HAVE_GSS_RFC_OIDS], 1, + [Define to 1 if the GSS-API library uses RFC-compliant OIDs.])], [], + [RRA_INCLUDES_GSSAPI])]) + dnl The main macro. AC_DEFUN([RRA_LIB_GSSAPI], [AC_REQUIRE([RRA_ENABLE_REDUCED_DEPENDS]) @@ -148,24 +208,12 @@ AC_DEFUN([RRA_LIB_GSSAPI], AS_IF([test x"$rra_reduced_depends" = xtrue], [_RRA_LIB_GSSAPI_PATHS _RRA_LIB_GSSAPI_REDUCED], - [AC_ARG_VAR([KRB5_CONFIG], [Path to krb5-config]) - AS_IF([test x"$rra_gssapi_root" != x && test -z "$KRB5_CONFIG"], - [AS_IF([test -x "${rra_gssapi_root}/bin/krb5-config"], - [KRB5_CONFIG="${rra_gssapi_root}/bin/krb5-config"])], - [AC_PATH_PROG([KRB5_CONFIG], [krb5-config])]) - AS_IF([test x"$KRB5_CONFIG" != x && test -x "$KRB5_CONFIG"], - [AC_CACHE_CHECK([for gssapi support in krb5-config], - [rra_cv_lib_gssapi_config], - [AS_IF(["$KRB5_CONFIG" 2>&1 | grep gssapi >/dev/null 2>&1], - [rra_cv_lib_gssapi_config=yes], - [rra_cv_lib_gssapi_config=no])]) - AS_IF([test "$rra_cv_lib_gssapi_config" = yes], - [GSSAPI_CPPFLAGS=`"$KRB5_CONFIG" --cflags gssapi 2>/dev/null` - GSSAPI_LIBS=`"$KRB5_CONFIG" --libs gssapi 2>/dev/null`], - [GSSAPI_CPPFLAGS=`"$KRB5_CONFIG" --cflags 2>/dev/null` - GSSAPI_LIBS=`"$KRB5_CONFIG" --libs 2>/dev/null`]) - GSSAPI_CPPFLAGS=`echo "$GSSAPI_CPPFLAGS" \ - | sed 's%-I/usr/include ?%%'` - _RRA_LIB_GSSAPI_CHECK], - [_RRA_LIB_GSSAPI_PATHS - _RRA_LIB_GSSAPI_MANUAL])])]) + [AS_IF([test x"$rra_gssapi_includedir" = x \ + && test x"$rra_gssapi_libdir" = x], + [_RRA_LIB_GSSAPI_CONFIG], + [_RRA_LIB_GSSAPI_PATHS + _RRA_LIB_GSSAPI_MANUAL])]) + + RRA_LIB_GSSAPI_SWITCH + _RRA_LIB_GSSAPI_EXTRA + RRA_LIB_GSSAPI_RESTORE]) diff --git a/m4/krb5-config.m4 b/m4/krb5-config.m4 new file mode 100644 index 0000000..d73085f --- /dev/null +++ b/m4/krb5-config.m4 @@ -0,0 +1,101 @@ +dnl Use krb5-config to get link paths for Kerberos libraries. +dnl +dnl Provides one macro, RRA_KRB5_CONFIG, which attempts to get compiler and +dnl linker flags for a library via krb5-config and sets the appropriate shell +dnl variables. Defines the Autoconf variable PATH_KRB5_CONFIG, which can be +dnl used to find the default path to krb5-config. +dnl +dnl Depends on RRA_ENABLE_REDUCED_DEPENDS. +dnl +dnl The canonical version of this file is maintained in the rra-c-util +dnl package, available at <http://www.eyrie.org/~eagle/software/rra-c-util/>. +dnl +dnl Written by Russ Allbery <rra@stanford.edu> +dnl Copyright 2011, 2012 +dnl The Board of Trustees of the Leland Stanford Junior University +dnl +dnl This file is free software; the authors give unlimited permission to copy +dnl and/or distribute it, with or without modifications, as long as this +dnl notice is preserved. + +dnl Check for krb5-config in the user's path and set PATH_KRB5_CONFIG. This +dnl is moved into a separate macro so that it can be loaded via AC_REQUIRE, +dnl meaning it will only be run once even if we link with multiple krb5-config +dnl libraries. +AC_DEFUN([_RRA_KRB5_CONFIG_PATH], +[AC_ARG_VAR([PATH_KRB5_CONFIG], [Path to krb5-config]) + AC_PATH_PROG([PATH_KRB5_CONFIG], [krb5-config], [], + [${PATH}:/usr/kerberos/bin])]) + +dnl Check whether the --deps flag is supported by krb5-config. Takes the path +dnl to krb5-config to use. Note that this path is not embedded in the cache +dnl variable, so this macro implicitly assumes that we will always use the +dnl same krb5-config program. +AC_DEFUN([_RRA_KRB5_CONFIG_DEPS], +[AC_REQUIRE([_RRA_KRB5_CONFIG_PATH]) + AC_CACHE_CHECK([for --deps support in krb5-config], + [rra_cv_krb5_config_deps], + [AS_IF(["$1" 2>&1 | grep deps >/dev/null 2>&1], + [rra_cv_krb5_config_deps=yes], + [rra_cv_krb5_config_deps=no])])]) + +dnl Obtain the library flags for a particular library using krb5-config. +dnl Takes the path to the krb5-config program to use, the argument to +dnl krb5-config to use, and the variable prefix under which to store the +dnl library flags. +AC_DEFUN([_RRA_KRB5_CONFIG_LIBS], +[AC_REQUIRE([_RRA_KRB5_CONFIG_PATH]) + AC_REQUIRE([RRA_ENABLE_REDUCED_DEPENDS]) + _RRA_KRB5_CONFIG_DEPS([$1]) + AS_IF([test x"$rra_reduced_depends" = xfalse \ + && test x"$rra_cv_krb5_config_deps" = xyes], + [$3[]_LIBS=`"$1" --deps --libs $2 2>/dev/null`], + [$3[]_LIBS=`"$1" --libs $2 2>/dev/null`])]) + +dnl Attempt to find the flags for a library using krb5-config. Takes the +dnl following arguments (in order): +dnl +dnl 1. The root directory for the library in question, generally from an +dnl Autoconf --with flag. Used by preference as the path to krb5-config. +dnl +dnl 2. The argument to krb5-config to retrieve flags for this particular +dnl library. +dnl +dnl 3. The variable prefix to use when setting CPPFLAGS and LIBS variables +dnl based on the result of krb5-config. +dnl +dnl 4. Further actions to take if krb5-config was found and supported that +dnl library type. +dnl +dnl 5. Further actions to take if krb5-config could not be used to get flags +dnl for that library type. +dnl +dnl Special-case a krb5-config argument of krb5 and run krb5-config without an +dnl argument if that option was requested and not supported. Old versions of +dnl krb5-config didn't take an argument to specify the library type, but +dnl always returned the flags for libkrb5. +AC_DEFUN([RRA_KRB5_CONFIG], +[AC_REQUIRE([_RRA_KRB5_CONFIG_PATH]) + rra_krb5_config_$3= + rra_krb5_config_$3[]_ok= + AS_IF([test x"$1" != x && test -x "$1/bin/krb5-config"], + [rra_krb5_config_$3="$1/bin/krb5-config"], + [rra_krb5_config_$3="$PATH_KRB5_CONFIG"]) + AS_IF([test x"$rra_krb5_config_$3" != x && test -x "$rra_krb5_config_$3"], + [AC_CACHE_CHECK([for $2 support in krb5-config], [rra_cv_lib_$3[]_config], + [AS_IF(["$rra_krb5_config_$3" 2>&1 | grep $2 >/dev/null 2>&1], + [rra_cv_lib_$3[]_config=yes], + [rra_cv_lib_$3[]_config=no])]) + AS_IF([test "$rra_cv_lib_$3[]_config" = yes], + [$3[]_CPPFLAGS=`"$rra_krb5_config_$3" --cflags $2 2>/dev/null` + _RRA_KRB5_CONFIG_LIBS([$rra_krb5_config_$3], [$2], [$3]) + rra_krb5_config_$3[]_ok=yes], + [AS_IF([test x"$2" = xkrb5], + [$3[]_CPPFLAGS=`"$rra_krb5_config_$3" --cflags 2>/dev/null` + $3[]_LIBS=`"$rra_krb5_config_$3" --libs $2 2>/dev/null` + rra_krb5_config_$3[]_ok=yes])])]) + AS_IF([test x"$rra_krb5_config_$3[]_ok" = xyes], + [$3[]_CPPFLAGS=`echo "$$3[]_CPPFLAGS" | sed 's%-I/usr/include %%'` + $3[]_CPPFLAGS=`echo "$$3[]_CPPFLAGS" | sed 's%-I/usr/include$%%'` + $4], + [$5])]) @@ -1,17 +1,18 @@ -dnl Find the compiler and linker flags for Kerberos v5. +dnl Find the compiler and linker flags for Kerberos. dnl -dnl Finds the compiler and linker flags for linking with Kerberos v5 -dnl libraries. Provides the --with-krb5, --with-krb5-include, and -dnl --with-krb5-lib configure options to specify non-standard paths to the -dnl Kerberos libraries. Uses krb5-config where available unless reduced -dnl dependencies is requested. +dnl Finds the compiler and linker flags for linking with Kerberos libraries. +dnl Provides the --with-krb5, --with-krb5-include, and --with-krb5-lib +dnl configure options to specify non-standard paths to the Kerberos libraries. +dnl Uses krb5-config where available unless reduced dependencies is requested +dnl or --with-krb5-include or --with-krb5-lib are given. dnl dnl Provides the macro RRA_LIB_KRB5 and sets the substitution variables dnl KRB5_CPPFLAGS, KRB5_LDFLAGS, and KRB5_LIBS. Also provides dnl RRA_LIB_KRB5_SWITCH to set CPPFLAGS, LDFLAGS, and LIBS to include the dnl Kerberos libraries, saving the current values first, and dnl RRA_LIB_KRB5_RESTORE to restore those settings to before the last -dnl RRA_LIB_KRB5_SWITCH. +dnl RRA_LIB_KRB5_SWITCH. HAVE_KERBEROS will always be defined if RRA_LIB_KRB5 +dnl is used. dnl dnl If KRB5_CPPFLAGS, KRB5_LDFLAGS, or KRB5_LIBS are set before calling these dnl macros, their values will be added to whatever the macros discover. @@ -32,14 +33,31 @@ dnl Also provides RRA_FUNC_KRB5_GET_INIT_CREDS_OPT_FREE_ARGS, which checks dnl whether krb5_get_init_creds_opt_free takes one argument or two. Defines dnl HAVE_KRB5_GET_INIT_CREDS_OPT_FREE_2_ARGS if it takes two arguments. dnl +dnl Also provides RRA_INCLUDES_KRB5, which are the headers to include when +dnl probing the Kerberos library properties. +dnl +dnl The canonical version of this file is maintained in the rra-c-util +dnl package, available at <http://www.eyrie.org/~eagle/software/rra-c-util/>. +dnl dnl Written by Russ Allbery <rra@stanford.edu> -dnl Copyright 2005, 2006, 2007, 2008, 2009, 2010 -dnl Board of Trustees, Leland Stanford Jr. University +dnl Copyright 2005, 2006, 2007, 2008, 2009, 2010, 2011 +dnl The Board of Trustees of the Leland Stanford Junior University dnl -dnl See LICENSE for licensing terms. +dnl This file is free software; the authors give unlimited permission to copy +dnl and/or distribute it, with or without modifications, as long as this +dnl notice is preserved. + +dnl Headers to include when probing for Kerberos library properties. +AC_DEFUN([RRA_INCLUDES_KRB5], [[ +#if HAVE_KRB5_H +# include <krb5.h> +#else +# include <krb5/krb5.h> +#endif +]]) dnl Save the current CPPFLAGS, LDFLAGS, and LIBS settings and switch to -dnl versions that include the Kerberos v5 flags. Used as a wrapper, with +dnl versions that include the Kerberos flags. Used as a wrapper, with dnl RRA_LIB_KRB5_RESTORE, around tests. AC_DEFUN([RRA_LIB_KRB5_SWITCH], [rra_krb5_save_CPPFLAGS="$CPPFLAGS" @@ -69,44 +87,62 @@ AC_DEFUN([_RRA_LIB_KRB5_PATHS], [AS_IF([test x"$rra_krb5_root" != x/usr], [KRB5_CPPFLAGS="-I${rra_krb5_root}/include"])])])]) -dnl Does the appropriate library checks for reduced-dependency Kerberos v5 +dnl Check for a header using a file existence check rather than using +dnl AC_CHECK_HEADERS. This is used if there were arguments to configure +dnl specifying the Kerberos header path, since we may have one header in the +dnl default include path and another under our explicitly-configured Kerberos +dnl location. +AC_DEFUN([_RRA_LIB_KRB5_CHECK_HEADER], +[AC_MSG_CHECKING([for $1]) + AS_IF([test -f "${rra_krb5_incroot}/$1"], + [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1]), [1], + [Define to 1 if you have the <$1> header file.]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])])]) + +dnl Does the appropriate library checks for reduced-dependency Kerberos dnl linkage. The single argument, if true, says to fail if Kerberos could not dnl be found. AC_DEFUN([_RRA_LIB_KRB5_REDUCED], [RRA_LIB_KRB5_SWITCH AC_CHECK_LIB([krb5], [krb5_init_context], [KRB5_LIBS="-lkrb5"], [AS_IF([test x"$1" = xtrue], - [AC_MSG_ERROR([cannot find usable Kerberos v5 library])])]) + [AC_MSG_ERROR([cannot find usable Kerberos library])])]) LIBS="$KRB5_LIBS $LIBS" + AS_IF([test x"$rra_krb5_incroot" = x], + [AC_CHECK_HEADERS([krb5.h krb5/krb5.h])], + [_RRA_LIB_KRB5_CHECK_HEADER([krb5.h]) + _RRA_LIB_KRB5_CHECK_HEADER([krb5/krb5.h])]) AC_CHECK_FUNCS([krb5_get_error_message], [AC_CHECK_FUNCS([krb5_free_error_message])], - [AC_CHECK_FUNCS([krb5_get_error_string], , - [AC_CHECK_FUNCS([krb5_get_err_txt], , + [AC_CHECK_FUNCS([krb5_get_error_string], [], + [AC_CHECK_FUNCS([krb5_get_err_txt], [], [AC_CHECK_LIB([ksvc], [krb5_svc_get_msg], [KRB5_LIBS="$KRB5_LIBS -lksvc" AC_DEFINE([HAVE_KRB5_SVC_GET_MSG], [1]) - AC_CHECK_HEADERS([ibm_svc/krb5_svc.h])], + AC_CHECK_HEADERS([ibm_svc/krb5_svc.h], [], [], + [RRA_INCLUDES_KRB5])], [AC_CHECK_LIB([com_err], [com_err], [KRB5_LIBS="$KRB5_LIBS -lcom_err"], [AC_MSG_ERROR([cannot find usable com_err library])]) AC_CHECK_HEADERS([et/com_err.h])])])])]) RRA_LIB_KRB5_RESTORE]) -dnl Does the appropriate library checks for Kerberos v5 linkage when we don't +dnl Does the appropriate library checks for Kerberos linkage when we don't dnl have krb5-config or reduced dependencies. The single argument, if true, dnl says to fail if Kerberos could not be found. AC_DEFUN([_RRA_LIB_KRB5_MANUAL], [RRA_LIB_KRB5_SWITCH rra_krb5_extra= LIBS= - AC_SEARCH_LIBS([res_search], [resolv], , + AC_SEARCH_LIBS([res_search], [resolv], [], [AC_SEARCH_LIBS([__res_search], [resolv])]) AC_SEARCH_LIBS([gethostbyname], [nsl]) - AC_SEARCH_LIBS([socket], [socket], , - [AC_CHECK_LIB([nsl], [socket], [LIBS="-lnsl -lsocket $LIBS"], , + AC_SEARCH_LIBS([socket], [socket], [], + [AC_CHECK_LIB([nsl], [socket], [LIBS="-lnsl -lsocket $LIBS"], [], [-lsocket])]) AC_SEARCH_LIBS([crypt], [crypt]) - AC_SEARCH_LIBS([rk_simple_execve], [roken]) + AC_SEARCH_LIBS([roken_concat], [roken]) rra_krb5_extra="$LIBS" LIBS="$rra_krb5_save_LIBS" AC_CHECK_LIB([krb5], [krb5_init_context], @@ -119,28 +155,34 @@ AC_DEFUN([_RRA_LIB_KRB5_MANUAL], [rra_krb5_pthread="-lpthread"])]) AC_CHECK_LIB([krb5support], [krb5int_setspecific], [rra_krb5_extra="-lkrb5support $rra_krb5_extra $rra_krb5_pthread"], - , [$rra_krb5_pthread])]) + [], [$rra_krb5_pthread $rra_krb5_extra])], + [$rra_krb5_extra]) AC_CHECK_LIB([com_err], [error_message], - [rra_krb5_extra="-lcom_err $rra_krb5_extra"]) + [rra_krb5_extra="-lcom_err $rra_krb5_extra"], [], [$rra_krb5_extra]) AC_CHECK_LIB([ksvc], [krb5_svc_get_msg], - [rra_krb5_extra="-lksvc $rra_krb5_extra"]) + [rra_krb5_extra="-lksvc $rra_krb5_extra"], [], [$rra_krb5_extra]) AC_CHECK_LIB([k5crypto], [krb5int_hash_md5], - [rra_krb5_extra="-lk5crypto $rra_krb5_extra"]) + [rra_krb5_extra="-lk5crypto $rra_krb5_extra"], [], [$rra_krb5_extra]) AC_CHECK_LIB([k5profile], [profile_get_values], - [rra_krb5_extra="-lk5profile $rra_krb5_extra"]) + [rra_krb5_extra="-lk5profile $rra_krb5_extra"], [], [$rra_krb5_extra]) AC_CHECK_LIB([krb5], [krb5_cc_default], [KRB5_LIBS="-lkrb5 $rra_krb5_extra"], [AS_IF([test x"$1" = xtrue], - [AC_MSG_ERROR([cannot find usable Kerberos v5 library])])], + [AC_MSG_ERROR([cannot find usable Kerberos library])])], [$rra_krb5_extra])], [-lasn1 -lcom_err -lcrypto $rra_krb5_extra]) LIBS="$KRB5_LIBS $LIBS" + AS_IF([test x"$rra_krb5_incroot" = x], + [AC_CHECK_HEADERS([krb5.h krb5/krb5.h])], + [_RRA_LIB_KRB5_CHECK_HEADER([krb5.h]) + _RRA_LIB_KRB5_CHECK_HEADER([krb5/krb5.h])]) AC_CHECK_FUNCS([krb5_get_error_message], [AC_CHECK_FUNCS([krb5_free_error_message])], - [AC_CHECK_FUNCS([krb5_get_error_string], , - [AC_CHECK_FUNCS([krb5_get_err_txt], , + [AC_CHECK_FUNCS([krb5_get_error_string], [], + [AC_CHECK_FUNCS([krb5_get_err_txt], [], [AC_CHECK_FUNCS([krb5_svc_get_msg], - [AC_CHECK_HEADERS([ibm_svc/krb5_svc.h])], + [AC_CHECK_HEADERS([ibm_svc/krb5_svc.h], [], [], + [RRA_INCLUDES_KRB5])], [AC_CHECK_HEADERS([et/com_err.h])])])])]) RRA_LIB_KRB5_RESTORE]) @@ -158,49 +200,49 @@ AC_DEFUN([_RRA_LIB_KRB5_CHECK], _RRA_LIB_KRB5_PATHS _RRA_LIB_KRB5_MANUAL([$1])])]) +dnl Determine Kerberos compiler and linker flags from krb5-config. Does the +dnl additional probing we need to do to uncover error handling features, and +dnl falls back on the manual checks. +AC_DEFUN([_RRA_LIB_KRB5_CONFIG], +[RRA_KRB5_CONFIG([${rra_krb5_root}], [krb5], [KRB5], + [_RRA_LIB_KRB5_CHECK([$1]) + RRA_LIB_KRB5_SWITCH + AS_IF([test x"$rra_krb5_incroot" = x], + [AC_CHECK_HEADERS([krb5.h krb5/krb5.h])], + [_RRA_LIB_KRB5_CHECK_HEADER([krb5.h]) + _RRA_LIB_KRB5_CHECK_HEADER([krb5/krb5.h])]) + AC_CHECK_FUNCS([krb5_get_error_message], + [AC_CHECK_FUNCS([krb5_free_error_message])], + [AC_CHECK_FUNCS([krb5_get_error_string], [], + [AC_CHECK_FUNCS([krb5_get_err_txt], [], + [AC_CHECK_FUNCS([krb5_svc_get_msg], + [AC_CHECK_HEADERS([ibm_svc/krb5_svc.h], [], [], + [RRA_INCLUDES_KRB5])], + [AC_CHECK_HEADERS([et/com_err.h])])])])]) + RRA_LIB_KRB5_RESTORE], + [_RRA_LIB_KRB5_PATHS + _RRA_LIB_KRB5_MANUAL([$1])])]) + dnl The core of the library checking, shared between RRA_LIB_KRB5 and dnl RRA_LIB_KRB5_OPTIONAL. The single argument, if "true", says to fail if -dnl Kerberos could not be found. +dnl Kerberos could not be found. Set up rra_krb5_incroot for later header +dnl checking. AC_DEFUN([_RRA_LIB_KRB5_INTERNAL], [AC_REQUIRE([RRA_ENABLE_REDUCED_DEPENDS]) + rra_krb5_incroot= + AS_IF([test x"$rra_krb5_includedir" != x], + [rra_krb5_incroot="$rra_krb5_includedir"], + [AS_IF([test x"$rra_krb5_root" != x], + [rra_krb5_incroot="${rra_krb5_root}/include"])]) AS_IF([test x"$rra_reduced_depends" = xtrue], [_RRA_LIB_KRB5_PATHS _RRA_LIB_KRB5_REDUCED([$1])], - [AC_ARG_VAR([KRB5_CONFIG], [Path to krb5-config]) - AS_IF([test x"$rra_krb5_root" != x && test -z "$KRB5_CONFIG"], - [AS_IF([test -x "${rra_krb5_root}/bin/krb5-config"], - [KRB5_CONFIG="${rra_krb5_root}/bin/krb5-config"])], - [AC_PATH_PROG([KRB5_CONFIG], [krb5-config])]) - AS_IF([test x"$KRB5_CONFIG" != x && test -x "$KRB5_CONFIG"], - [AC_CACHE_CHECK([for krb5 support in krb5-config], - [rra_cv_lib_krb5_config], - [AS_IF(["$KRB5_CONFIG" 2>&1 | grep krb5 >/dev/null 2>&1], - [rra_cv_lib_krb5_config=yes], - [rra_cv_lib_krb5_config=no])]) - AS_IF([test x"$rra_cv_lib_krb5_config" = xyes], - [KRB5_CPPFLAGS=`"$KRB5_CONFIG" --cflags krb5 2>/dev/null` - KRB5_LIBS=`"$KRB5_CONFIG" --libs krb5 2>/dev/null`], - [KRB5_CPPFLAGS=`"$KRB5_CONFIG" --cflags 2>/dev/null` - KRB5_LIBS=`"$KRB5_CONFIG" --libs 2>/dev/null`]) - KRB5_CPPFLAGS=`echo "$KRB5_CPPFLAGS" | sed 's%-I/usr/include ?%%'` - _RRA_LIB_KRB5_CHECK([$1]) - RRA_LIB_KRB5_SWITCH - AC_CHECK_FUNCS([krb5_get_error_message], - [AC_CHECK_FUNCS([krb5_free_error_message])], - [AC_CHECK_FUNCS([krb5_get_error_string], , - [AC_CHECK_FUNCS([krb5_get_err_txt], , - [AC_CHECK_FUNCS([krb5_svc_get_msg], - [AC_CHECK_HEADERS([ibm_svc/krb5_svc.h])], - [AC_CHECK_HEADERS([et/com_err.h])])])])]) - RRA_LIB_KRB5_RESTORE], - [_RRA_LIB_KRB5_PATHS - _RRA_LIB_KRB5_MANUAL([$1])])]) + [AS_IF([test x"$rra_krb5_includedir" = x && test x"$rra_krb5_libdir" = x], + [_RRA_LIB_KRB5_CONFIG([$1])], + [_RRA_LIB_KRB5_PATHS + _RRA_LIB_KRB5_MANUAL([$1])])]) rra_krb5_uses_com_err=false - case "$LIBS" in - *-lcom_err*) - rra_krb5_uses_com_err=true - ;; - esac + AS_CASE([$LIBS], [*-lcom_err*], [rra_krb5_uses_com_err=true]) AM_CONDITIONAL([KRB5_USES_COM_ERR], [test x"$rra_krb5_uses_com_err" = xtrue])]) dnl The main macro for packages with mandatory Kerberos support. @@ -208,26 +250,28 @@ AC_DEFUN([RRA_LIB_KRB5], [rra_krb5_root= rra_krb5_libdir= rra_krb5_includedir= + rra_use_kerberos=true AC_SUBST([KRB5_CPPFLAGS]) AC_SUBST([KRB5_LDFLAGS]) AC_SUBST([KRB5_LIBS]) AC_ARG_WITH([krb5], [AS_HELP_STRING([--with-krb5=DIR], - [Location of Kerberos v5 headers and libraries])], + [Location of Kerberos headers and libraries])], [AS_IF([test x"$withval" != xyes && test x"$withval" != xno], [rra_krb5_root="$withval"])]) AC_ARG_WITH([krb5-include], [AS_HELP_STRING([--with-krb5-include=DIR], - [Location of Kerberos v5 headers])], + [Location of Kerberos headers])], [AS_IF([test x"$withval" != xyes && test x"$withval" != xno], [rra_krb5_includedir="$withval"])]) AC_ARG_WITH([krb5-lib], [AS_HELP_STRING([--with-krb5-lib=DIR], - [Location of Kerberos v5 libraries])], + [Location of Kerberos libraries])], [AS_IF([test x"$withval" != xyes && test x"$withval" != xno], [rra_krb5_libdir="$withval"])]) - _RRA_LIB_KRB5_INTERNAL([true])]) + _RRA_LIB_KRB5_INTERNAL([true]) + AC_DEFINE([HAVE_KERBEROS], 1, [Define to enable Kerberos features.])]) dnl The main macro for packages with optional Kerberos support. AC_DEFUN([RRA_LIB_KRB5_OPTIONAL], @@ -241,29 +285,41 @@ AC_DEFUN([RRA_LIB_KRB5_OPTIONAL], AC_ARG_WITH([krb5], [AS_HELP_STRING([--with-krb5@<:@=DIR@:>@], - [Location of Kerberos v5 headers and libraries])], + [Location of Kerberos headers and libraries])], [AS_IF([test x"$withval" = xno], [rra_use_kerberos=false], [AS_IF([test x"$withval" != xyes], [rra_krb5_root="$withval"]) rra_use_kerberos=true])]) AC_ARG_WITH([krb5-include], [AS_HELP_STRING([--with-krb5-include=DIR], - [Location of Kerberos v5 headers])], + [Location of Kerberos headers])], [AS_IF([test x"$withval" != xyes && test x"$withval" != xno], [rra_krb5_includedir="$withval"])]) AC_ARG_WITH([krb5-lib], [AS_HELP_STRING([--with-krb5-lib=DIR], - [Location of Kerberos v5 libraries])], + [Location of Kerberos libraries])], [AS_IF([test x"$withval" != xyes && test x"$withval" != xno], [rra_krb5_libdir="$withval"])]) AS_IF([test x"$rra_use_kerberos" != xfalse], [AS_IF([test x"$rra_use_kerberos" = xtrue], [_RRA_LIB_KRB5_INTERNAL([true])], - [_RRA_LIB_KRB5_INTERNAL([false])])]) + [_RRA_LIB_KRB5_INTERNAL([false])])], + [AM_CONDITIONAL([KRB5_USES_COM_ERR], [false])]) AS_IF([test x"$KRB5_LIBS" != x], [AC_DEFINE([HAVE_KERBEROS], 1, [Define to enable Kerberos features.])])]) +dnl Source used by RRA_FUNC_KRB5_GET_INIT_CREDS_OPT_FREE_ARGS. +AC_DEFUN([_RRA_FUNC_KRB5_OPT_FREE_ARGS_SOURCE], [RRA_INCLUDES_KRB5] [[ +int +main(void) +{ + krb5_get_init_creds_opt *opts; + krb5_context c; + krb5_get_init_creds_opt_free(c, opts); +} +]]) + dnl Check whether krb5_get_init_creds_opt_free takes one argument or two. dnl Early Heimdal used to take a single argument. Defines dnl HAVE_KRB5_GET_INIT_CREDS_OPT_FREE_2_ARGS if it takes two arguments. @@ -272,9 +328,7 @@ dnl Should be called with RRA_LIB_KRB5_SWITCH active. AC_DEFUN([RRA_FUNC_KRB5_GET_INIT_CREDS_OPT_FREE_ARGS], [AC_CACHE_CHECK([if krb5_get_init_creds_opt_free takes two arguments], [rra_cv_func_krb5_get_init_creds_opt_free_args], - [AC_TRY_COMPILE([#include <krb5.h>], - [krb5_get_init_creds_opt *opts; krb5_context c; - krb5_get_init_creds_opt_free(c, opts);], + [AC_COMPILE_IFELSE([AC_LANG_SOURCE([_RRA_FUNC_KRB5_OPT_FREE_ARGS_SOURCE])], [rra_cv_func_krb5_get_init_creds_opt_free_args=yes], [rra_cv_func_krb5_get_init_creds_opt_free_args=no])]) AS_IF([test $rra_cv_func_krb5_get_init_creds_opt_free_args = yes], diff --git a/m4/lib-depends.m4 b/m4/lib-depends.m4 index 039e245..b5185f3 100644 --- a/m4/lib-depends.m4 +++ b/m4/lib-depends.m4 @@ -9,11 +9,16 @@ dnl dnl This macro doesn't do much but is defined separately so that other macros dnl can require it with AC_REQUIRE. dnl +dnl The canonical version of this file is maintained in the rra-c-util +dnl package, available at <http://www.eyrie.org/~eagle/software/rra-c-util/>. +dnl dnl Written by Russ Allbery <rra@stanford.edu> dnl Copyright 2005, 2006, 2007 -dnl Board of Trustees, Leland Stanford Jr. University +dnl The Board of Trustees of the Leland Stanford Junior University dnl -dnl See LICENSE for licensing terms. +dnl This file is free software; the authors give unlimited permission to copy +dnl and/or distribute it, with or without modifications, as long as this +dnl notice is preserved. AC_DEFUN([RRA_ENABLE_REDUCED_DEPENDS], [rra_reduced_depends=false diff --git a/m4/lib-pathname.m4 b/m4/lib-pathname.m4 index fc326a0..fd5a5a1 100644 --- a/m4/lib-pathname.m4 +++ b/m4/lib-pathname.m4 @@ -12,10 +12,16 @@ dnl dnl This file also provides the Autoconf macro RRA_SET_LIBDIR, which sets the dnl libdir variable to PREFIX/lib{,32,64} as appropriate. dnl +dnl The canonical version of this file is maintained in the rra-c-util +dnl package, available at <http://www.eyrie.org/~eagle/software/rra-c-util/>. +dnl dnl Written by Russ Allbery <rra@stanford.edu> -dnl Copyright 2008, 2009 Board of Trustees, Leland Stanford Jr. University +dnl Copyright 2008, 2009 +dnl The Board of Trustees of the Leland Stanford Junior University dnl -dnl See LICENSE for licensing terms. +dnl This file is free software; the authors give unlimited permission to copy +dnl and/or distribute it, with or without modifications, as long as this +dnl notice is preserved. dnl Probe for the alternate library name that we should attempt on this dnl architecture, given the size of an int, and set rra_lib_arch_name to that diff --git a/m4/remctl.m4 b/m4/remctl.m4 index bb3a56f..588404f 100644 --- a/m4/remctl.m4 +++ b/m4/remctl.m4 @@ -10,15 +10,28 @@ dnl REMCTL_CPPFLAGS, REMCTL_LDFLAGS, and REMCTL_LIBS. Also provides dnl RRA_LIB_REMCTL_SWITCH to set CPPFLAGS, LDFLAGS, and LIBS to include the dnl remctl libraries, saving the current values first, and dnl RRA_LIB_REMCTL_RESTORE to restore those settings to before the last -dnl RRA_LIB_REMCTL_SWITCH. +dnl RRA_LIB_REMCTL_SWITCH. HAVE_REMCTL will always be defined if +dnl RRA_LIB_REMCTL is used. +dnl +dnl Provides the RRA_LIB_REMCTL_OPTIONAL macro, which should be used if +dnl Kerberos support is optional. This macro will still always est the +dnl substitution variables, but they'll be empty unless --with-remctl is +dnl given. HAVE_REMCTL will be defined if --with-remctl is given and +dnl $rra_use_remctl will be set to "true". dnl dnl Depends on RRA_ENABLE_REDUCED_DEPENDS, RRA_SET_LDFLAGS, and dnl RRA_LIB_GSSAPI. dnl +dnl The canonical version of this file is maintained in the rra-c-util +dnl package, available at <http://www.eyrie.org/~eagle/software/rra-c-util/>. +dnl dnl Written by Russ Allbery <rra@stanford.edu> -dnl Copyright 2008, 2009 Board of Trustees, Leland Stanford Jr. University +dnl Copyright 2008, 2009, 2011 +dnl The Board of Trustees of the Leland Stanford Junior University dnl -dnl See LICENSE for licensing terms. +dnl This file is free software; the authors give unlimited permission to copy +dnl and/or distribute it, with or without modifications, as long as this +dnl notice is preserved. dnl Save the current CPPFLAGS, LDFLAGS, and LIBS settings and switch to dnl versions that include the remctl flags. Used as a wrapper, with @@ -55,16 +68,34 @@ dnl Sanity-check the results of the remctl library search to be sure we can dnl really link a remctl program. AC_DEFUN([_RRA_LIB_REMCTL_CHECK], [RRA_LIB_REMCTL_SWITCH - AC_CHECK_FUNC([remctl_open], , - [AC_MSG_FAILURE([unable to link with remctl library])]) + AC_CHECK_FUNC([remctl_open], [], + [AS_IF([test x"$1" = xtrue], + [AC_MSG_FAILURE([unable to link with remctl library])]) + REMCTL_CPPFLAGS= + REMCTL_LDFLAGS= + REMCTL_LIBS=]) RRA_LIB_REMCTL_RESTORE]) -dnl The main macro. -AC_DEFUN([RRA_LIB_REMCTL], +dnl The core of the library checking, shared between RRA_LIB_REMCTL and +dnl RRA_LIB_REMCTL_OPTIONAL. The single argument, if "true", says to fail if +dnl remctl could not be found. +AC_DEFUN([_RRA_LIB_REMCTL_INTERNAL], [AC_REQUIRE([RRA_ENABLE_REDUCED_DEPENDS]) - rra_remctl_root= + _RRA_LIB_REMCTL_PATHS + AS_IF([test x"$rra_reduced_depends" = xtrue], + [REMCTL_LIBS="-lremctl"], + [RRA_LIB_GSSAPI + REMCTL_CPPFLAGS="$REMCTL_CPPFLAGS $GSSAPI_CPPFLAGS" + REMCTL_LDFLAGS="$REMCTL_LDFLAGS $GSSAPI_LDFLAGS" + REMCTL_LIBS="-lremctl $GSSAPI_LIBS"]) + _RRA_LIB_REMCTL_CHECK([$1])]) + +dnl The main macro for packages with mandatory remctl support. +AC_DEFUN([RRA_LIB_REMCTL], +[rra_remctl_root= rra_remctl_libdir= rra_remctl_includedir= + rra_use_remctl=true REMCTL_CPPFLAGS= REMCTL_LDFLAGS= REMCTL_LIBS= @@ -87,12 +118,43 @@ AC_DEFUN([RRA_LIB_REMCTL], [Location of remctl libraries])], [AS_IF([test x"$withval" != xyes && test x"$withval" != xno], [rra_remctl_libdir="$withval"])]) + _RRA_LIB_REMCTL_INTERNAL([true]) + AC_DEFINE([HAVE_REMCTL], 1, [Define to enable remctl features.])]) - _RRA_LIB_REMCTL_PATHS - AS_IF([test x"$rra_reduced_depends" = xtrue], - [REMCTL_LIBS="-lremctl"], - [RRA_LIB_GSSAPI - REMCTL_CPPFLAGS="$REMCTL_CPPFLAGS $GSSAPI_CPPFLAGS" - REMCTL_LDFLAGS="$REMCTL_LDFLAGS $GSSAPI_LDFLAGS" - REMCTL_LIBS="-lremctl $GSSAPI_LIBS"]) - _RRA_LIB_REMCTL_CHECK]) +dnl The main macro for packages with optional remctl support. +AC_DEFUN([RRA_LIB_REMCTL_OPTIONAL], +[rra_remctl_root= + rra_remctl_libdir= + rra_remctl_includedir= + rra_use_remctl= + REMCTL_CPPFLAGS= + REMCTL_LDFLAGS= + REMCTL_LIBS= + AC_SUBST([REMCTL_CPPFLAGS]) + AC_SUBST([REMCTL_LDFLAGS]) + AC_SUBST([REMCTL_LIBS]) + + AC_ARG_WITH([remctl], + [AS_HELP_STRING([--with-remctl@<:@=DIR@:>@], + [Location of remctl headers and libraries])], + [AS_IF([test x"$withval" = xno], + [rra_use_remctl=false], + [AS_IF([test x"$withval" != xyes], [rra_remctl_root="$withval"]) + rra_use_remctl=true])]) + AC_ARG_WITH([remctl-include], + [AS_HELP_STRING([--with-remctl-include=DIR], + [Location of remctl headers])], + [AS_IF([test x"$withval" != xyes && test x"$withval" != xno], + [rra_remctl_includedir="$withval"])]) + AC_ARG_WITH([remctl-lib], + [AS_HELP_STRING([--with-remctl-lib=DIR], + [Location of remctl libraries])], + [AS_IF([test x"$withval" != xyes && test x"$withval" != xno], + [rra_remctl_libdir="$withval"])]) + AS_IF([test x"$rra_use_remctl" != xfalse], + [AS_IF([test x"$rra_use_remctl" = xtrue], + [_RRA_LIB_REMCTL_INTERNAL([true])], + [_RRA_LIB_REMCTL_INTERNAL([false])])]) + AS_IF([test x"$REMCTL_LIBS" != x], + [rra_use_remctl=true + AC_DEFINE([HAVE_REMCTL], 1, [Define to enable remctl features.])])]) diff --git a/m4/snprintf.m4 b/m4/snprintf.m4 index d933f55..cd585ef 100644 --- a/m4/snprintf.m4 +++ b/m4/snprintf.m4 @@ -9,11 +9,16 @@ dnl dnl Provides RRA_FUNC_SNPRINTF, which adds snprintf.o to LIBOBJS unless a dnl fully working snprintf is found. dnl +dnl The canonical version of this file is maintained in the rra-c-util +dnl package, available at <http://www.eyrie.org/~eagle/software/rra-c-util/>. +dnl dnl Written by Russ Allbery <rra@stanford.edu> dnl Copyright 2006, 2008, 2009 -dnl Board of Trustees, Leland Stanford Jr. University +dnl The Board of Trustees of the Leland Stanford Junior University dnl -dnl See LICENSE for licensing terms. +dnl This file is free software; the authors give unlimited permission to copy +dnl and/or distribute it, with or without modifications, as long as this +dnl notice is preserved. dnl Source used by RRA_FUNC_SNPRINTF. AC_DEFUN([_RRA_FUNC_SNPRINTF_SOURCE], [[ diff --git a/m4/vamacros.m4 b/m4/vamacros.m4 index 855bb40..af98f6a 100644 --- a/m4/vamacros.m4 +++ b/m4/vamacros.m4 @@ -13,11 +13,16 @@ dnl #define macro(args...) fprintf(stderr, args) dnl dnl They set HAVE_C99_VAMACROS or HAVE_GNU_VAMACROS as appropriate. dnl +dnl The canonical version of this file is maintained in the rra-c-util +dnl package, available at <http://www.eyrie.org/~eagle/software/rra-c-util/>. +dnl dnl Written by Russ Allbery <rra@stanford.edu> dnl Copyright 2006, 2008, 2009 -dnl Board of Trustees, Leland Stanford Jr. University +dnl The Board of Trustees of the Leland Stanford Junior University dnl -dnl See LICENSE for licensing terms. +dnl This file is free software; the authors give unlimited permission to copy +dnl and/or distribute it, with or without modifications, as long as this +dnl notice is preserved. AC_DEFUN([_RRA_C_C99_VAMACROS_SOURCE], [[ #include <stdio.h> |