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Diffstat (limited to '')
| -rw-r--r-- | external/unbound/acx_nlnetlabs.m4 | 1378 |
1 files changed, 1378 insertions, 0 deletions
diff --git a/external/unbound/acx_nlnetlabs.m4 b/external/unbound/acx_nlnetlabs.m4 new file mode 100644 index 000000000..e1cf83a70 --- /dev/null +++ b/external/unbound/acx_nlnetlabs.m4 @@ -0,0 +1,1378 @@ +# acx_nlnetlabs.m4 - common macros for configure checks +# Copyright 2009, Wouter Wijngaards, NLnet Labs. +# BSD licensed. +# +# Version 26 +# 2013-09-19 FLTO help text improved. +# 2013-07-18 Enable ACX_CHECK_COMPILER_FLAG to test for -Wstrict-prototypes +# 2013-06-25 FLTO has --disable-flto option. +# 2013-05-03 Update W32_SLEEP for newer mingw that links but not defines it. +# 2013-03-22 Fix ACX_RSRC_VERSION for long version numbers. +# 2012-02-09 Fix AHX_MEMCMP_BROKEN with undef in compat/memcmp.h. +# 2012-01-20 Fix COMPILER_FLAGS_UNBOUND for gcc 4.6.2 assigned-not-used-warns. +# 2011-12-05 Fix getaddrinfowithincludes on windows with fedora16 mingw32-gcc. +# Fix ACX_MALLOC for redefined malloc error. +# Fix GETADDRINFO_WITH_INCLUDES to add -lws2_32 +# 2011-11-10 Fix FLTO test to not drop a.out in current directory. +# 2011-11-01 Fix FLTO test for llvm on Lion. +# 2011-08-01 Fix nonblock test (broken at v13). +# 2011-08-01 Fix autoconf 2.68 warnings +# 2011-06-23 Add ACX_CHECK_FLTO to check -flto. +# 2010-08-16 Fix FLAG_OMITTED for AS_TR_CPP changes in autoconf-2.66. +# 2010-07-02 Add check for ss_family (for minix). +# 2010-04-26 Fix to use CPPFLAGS for CHECK_COMPILER_FLAGS. +# 2010-03-01 Fix RPATH using CONFIG_COMMANDS to run at the very end. +# 2010-02-18 WITH_SSL outputs the LIBSSL_LDFLAGS, LIBS, CPPFLAGS seperate, -ldl +# 2010-02-01 added ACX_CHECK_MEMCMP_SIGNED, AHX_MEMCMP_BROKEN +# 2010-01-20 added AHX_COONFIG_STRLCAT +# 2009-07-14 U_CHAR detection improved for windows crosscompile. +# added ACX_FUNC_MALLOC +# fixup some #if to #ifdef +# NONBLOCKING test for mingw crosscompile. +# 2009-07-13 added ACX_WITH_SSL_OPTIONAL +# 2009-07-03 fixup LDFLAGS for empty ssl dir. +# +# Automates some of the checking constructs. Aims at portability for POSIX. +# Documentation for functions is below. +# +# the following macro's are provided in this file: +# (see below for details on each macro). +# +# ACX_ESCAPE_BACKSLASH - escape backslashes in var for C-preproc. +# ACX_RSRC_VERSION - create windows resource version number. +# ACX_CHECK_COMPILER_FLAG - see if cc supports a flag. +# ACX_CHECK_ERROR_FLAGS - see which flag is -werror (used below). +# ACX_CHECK_COMPILER_FLAG_NEEDED - see if flags make the code compile cleanly. +# ACX_DEPFLAG - find cc dependency flags. +# ACX_DETERMINE_EXT_FLAGS_UNBOUND - find out which flags enable BSD and POSIX. +# ACX_CHECK_FORMAT_ATTRIBUTE - find cc printf format syntax. +# ACX_CHECK_UNUSED_ATTRIBUTE - find cc variable unused syntax. +# ACX_CHECK_FLTO - see if cc supports -flto and use it if so. +# ACX_LIBTOOL_C_ONLY - create libtool for C only, improved. +# ACX_TYPE_U_CHAR - u_char type. +# ACX_TYPE_RLIM_T - rlim_t type. +# ACX_TYPE_SOCKLEN_T - socklen_t type. +# ACX_TYPE_IN_ADDR_T - in_addr_t type. +# ACX_TYPE_IN_PORT_T - in_port_t type. +# ACX_ARG_RPATH - add --disable-rpath option. +# ACX_WITH_SSL - add --with-ssl option, link -lcrypto. +# ACX_WITH_SSL_OPTIONAL - add --with-ssl option, link -lcrypto, +# where --without-ssl is also accepted +# ACX_LIB_SSL - setup to link -lssl. +# ACX_SYS_LARGEFILE - improved sys_largefile, fseeko, >2G files. +# ACX_CHECK_GETADDRINFO_WITH_INCLUDES - find getaddrinfo, portably. +# ACX_FUNC_DEPRECATED - see if func is deprecated. +# ACX_CHECK_NONBLOCKING_BROKEN - see if nonblocking sockets really work. +# ACX_MKDIR_ONE_ARG - determine mkdir(2) number of arguments. +# ACX_FUNC_IOCTLSOCKET - find ioctlsocket, portably. +# ACX_FUNC_MALLOC - check malloc, define replacement . +# AHX_CONFIG_FORMAT_ATTRIBUTE - config.h text for format. +# AHX_CONFIG_UNUSED_ATTRIBUTE - config.h text for unused. +# AHX_CONFIG_FSEEKO - define fseeko, ftello fallback. +# AHX_CONFIG_RAND_MAX - define RAND_MAX if needed. +# AHX_CONFIG_MAXHOSTNAMELEN - define MAXHOSTNAMELEN if needed. +# AHX_CONFIG_IPV6_MIN_MTU - define IPV6_MIN_MTU if needed. +# AHX_CONFIG_SNPRINTF - snprintf compat prototype +# AHX_CONFIG_INET_PTON - inet_pton compat prototype +# AHX_CONFIG_INET_NTOP - inet_ntop compat prototype +# AHX_CONFIG_INET_ATON - inet_aton compat prototype +# AHX_CONFIG_MEMMOVE - memmove compat prototype +# AHX_CONFIG_STRLCAT - strlcat compat prototype +# AHX_CONFIG_STRLCPY - strlcpy compat prototype +# AHX_CONFIG_GMTIME_R - gmtime_r compat prototype +# AHX_CONFIG_W32_SLEEP - w32 compat for sleep +# AHX_CONFIG_W32_USLEEP - w32 compat for usleep +# AHX_CONFIG_W32_RANDOM - w32 compat for random +# AHX_CONFIG_W32_SRANDOM - w32 compat for srandom +# AHX_CONFIG_W32_FD_SET_T - w32 detection of FD_SET_T. +# ACX_CFLAGS_STRIP - strip one flag from CFLAGS +# ACX_STRIP_EXT_FLAGS - strip extension flags from CFLAGS +# AHX_CONFIG_FLAG_OMITTED - define omitted flag +# AHX_CONFIG_FLAG_EXT - define omitted extension flag +# AHX_CONFIG_EXT_FLAGS - define the stripped extension flags +# ACX_CHECK_MEMCMP_SIGNED - check if memcmp uses signed characters. +# AHX_MEMCMP_BROKEN - replace memcmp func for CHECK_MEMCMP_SIGNED. +# ACX_CHECK_SS_FAMILY - check for sockaddr_storage.ss_family +# + +dnl Escape backslashes as \\, for C:\ paths, for the C preprocessor defines. +dnl for example, ACX_ESCAPE_BACKSLASH($from_var, to_var) +dnl $1: the text to change. +dnl $2: the result. +AC_DEFUN([ACX_ESCAPE_BACKSLASH], [$2="`echo $1 | sed -e 's/\\\\/\\\\\\\\/g'`" +]) + +dnl Calculate comma separated windows-resource numbers from package version. +dnl Picks the first three(,0) or four numbers out of the name. +dnl $1: variable for the result +AC_DEFUN([ACX_RSRC_VERSION], +[$1=[`echo $PACKAGE_VERSION | sed -e 's/^[^0-9]*\([0-9][0-9]*\)[^0-9][^0-9]*\([0-9][0-9]*\)[^0-9][^0-9]*\([0-9][0-9]*\)[^0-9][^0-9]*\([0-9][0-9]*\).*$/\1,\2,\3,\4/' -e 's/^[^0-9]*\([0-9][0-9]*\)[^0-9][^0-9]*\([0-9][0-9]*\)[^0-9][^0-9]*\([0-9][0-9]*\)[^0-9]*$/\1,\2,\3,0/' `] +]) + +dnl Routine to help check for compiler flags. +dnl Checks if the compiler will accept the flag. +dnl $1: the flag without a - in front, so g to check -g. +dnl $2: executed if yes +dnl $3: executed if no +AC_DEFUN([ACX_CHECK_COMPILER_FLAG], +[ +AC_REQUIRE([AC_PROG_CC]) +AC_MSG_CHECKING(whether $CC supports -$1) +cache=`echo $1 | sed 'y%.=/+-%___p_%'` +AC_CACHE_VAL(cv_prog_cc_flag_$cache, +[ +echo 'void f(void){}' >conftest.c +if test -z "`$CC $CPPFLAGS $CFLAGS -$1 -c conftest.c 2>&1`"; then +eval "cv_prog_cc_flag_$cache=yes" +else +eval "cv_prog_cc_flag_$cache=no" +fi +rm -f conftest conftest.o conftest.c +]) +if eval "test \"`echo '$cv_prog_cc_flag_'$cache`\" = yes"; then +AC_MSG_RESULT(yes) +: +$2 +else +AC_MSG_RESULT(no) +: +$3 +fi +]) + +dnl setup flags for ACX_CHECK_COMPILER_FLAG_NEEDED +dnl ERRFLAG: result, compiler flag to turn warnings into errors +AC_DEFUN([ACX_CHECK_ERROR_FLAGS], +[ +ACX_CHECK_COMPILER_FLAG(Werror, [ERRFLAG="-Werror"], [ERRFLAG="-errwarn"]) +ACX_CHECK_COMPILER_FLAG(Wall, [ERRFLAG="$ERRFLAG -Wall"], + [ERRFLAG="$ERRFLAG -errfmt"]) +]) + +dnl Routine to help check for needed compiler flags. +dnl $1: flags for CC +dnl $2: the includes and code +dnl $3: if the given code only compiles with the flag, execute argument 3 +dnl $4: if the given code compiles without the flag, execute argument 4 +dnl $5: with and without flag the compile fails, execute argument 5. +AC_DEFUN([ACX_CHECK_COMPILER_FLAG_NEEDED], +[ +AC_REQUIRE([AC_PROG_CC]) +AC_REQUIRE([ACX_CHECK_ERROR_FLAGS]) +AC_MSG_CHECKING(whether we need $1 as a flag for $CC) +cache=AS_TR_SH($1) +dnl cache=`echo $1 | sed 'y%.=/+- %___p__%'` +AC_CACHE_VAL(cv_prog_cc_flag_needed_$cache, +[ +echo '$2' > conftest.c +echo 'void f(){}' >>conftest.c +if test -z "`$CC $CPPFLAGS $CFLAGS $ERRFLAG -c conftest.c 2>&1`"; then +eval "cv_prog_cc_flag_needed_$cache=no" +else +[ +if test -z "`$CC $CPPFLAGS $CFLAGS $1 $ERRFLAG -c conftest.c 2>&1`"; then +eval "cv_prog_cc_flag_needed_$cache=yes" +else +eval "cv_prog_cc_flag_needed_$cache=fail" +#echo 'Test with flag fails too!' +#cat conftest.c +#echo "$CC $CPPFLAGS $CFLAGS $1 $ERRFLAG -c conftest.c 2>&1" +#echo `$CC $CPPFLAGS $CFLAGS $1 $ERRFLAG -c conftest.c 2>&1` +#exit 1 +fi +] +fi +rm -f conftest conftest.c conftest.o +]) +if eval "test \"`echo '$cv_prog_cc_flag_needed_'$cache`\" = yes"; then +AC_MSG_RESULT(yes) +: +$3 +else +if eval "test \"`echo '$cv_prog_cc_flag_needed_'$cache`\" = no"; then +AC_MSG_RESULT(no) +#echo 'Test with flag is no!' +#cat conftest.c +#echo "$CC $CPPFLAGS $CFLAGS $1 $ERRFLAG -c conftest.c 2>&1" +#echo `$CC $CPPFLAGS $CFLAGS $1 $ERRFLAG -c conftest.c 2>&1` +#exit 1 +: +$4 +else +AC_MSG_RESULT(failed) +: +$5 +fi +fi +]) + +dnl Check for CC dependency flag +dnl DEPFLAG: set to flag that generates dependencies. +AC_DEFUN([ACX_DEPFLAG], +[ +AC_MSG_CHECKING([$CC dependency flag]) +echo 'void f(){}' >conftest.c +if test "`$CC -MM conftest.c 2>&1`" = "conftest.o: conftest.c"; then + DEPFLAG="-MM" +else + if test "`$CC -xM1 conftest.c 2>&1`" = "conftest.o: conftest.c"; then + DEPFLAG="-xM1" + else + DEPFLAG="-MM" # dunno do something + fi +fi +AC_MSG_RESULT($DEPFLAG) +rm -f conftest.c +AC_SUBST(DEPFLAG) +]) + +dnl Determine flags that gives POSIX and BSD functionality. +dnl CFLAGS is modified for the result. +AC_DEFUN([ACX_DETERMINE_EXT_FLAGS_UNBOUND], +[ +ACX_CHECK_COMPILER_FLAG(std=c99, [C99FLAG="-std=c99"]) +ACX_CHECK_COMPILER_FLAG(xc99, [C99FLAG="-xc99"]) + +AC_CHECK_HEADERS([getopt.h time.h],,, [AC_INCLUDES_DEFAULT]) + +ACX_CHECK_COMPILER_FLAG_NEEDED($C99FLAG -D__EXTENSIONS__ -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_XOPEN_SOURCE_EXTENDED=1 -D_ALL_SOURCE, +[ +#include "confdefs.h" +#include <stdlib.h> +#include <ctype.h> +#include <sys/time.h> +#ifdef HAVE_TIME_H +#include <time.h> +#endif +#include <unistd.h> +#include <netdb.h> +#ifdef HAVE_GETOPT_H +#include <getopt.h> +#endif + +int test() { + int a; + char **opts = NULL; + struct timeval tv; + char *t; + time_t time = 0; + char *buf = NULL; + const char* str = NULL; + struct msghdr msg; + msg.msg_control = 0; + t = ctime_r(&time, buf); + tv.tv_usec = 10; + srandom(32); + a = getopt(2, opts, "a"); + a = isascii(32); + str = gai_strerror(0); + if(str && t && tv.tv_usec && msg.msg_control) + a = 0; + return a; +} +], [CFLAGS="$CFLAGS $C99FLAG -D__EXTENSIONS__ -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_XOPEN_SOURCE_EXTENDED=1 -D_ALL_SOURCE"]) + +ACX_CHECK_COMPILER_FLAG_NEEDED($C99FLAG -D__EXTENSIONS__ -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_ALL_SOURCE, +[ +#include "confdefs.h" +#include <stdlib.h> +#include <ctype.h> +#include <sys/time.h> +#ifdef HAVE_TIME_H +#include <time.h> +#endif +#include <unistd.h> +#include <netdb.h> +#ifdef HAVE_GETOPT_H +#include <getopt.h> +#endif + +int test() { + int a; + char **opts = NULL; + struct timeval tv; + char *t; + time_t time = 0; + char *buf = NULL; + const char* str = NULL; + struct msghdr msg; + msg.msg_control = 0; + t = ctime_r(&time, buf); + tv.tv_usec = 10; + srandom(32); + a = getopt(2, opts, "a"); + a = isascii(32); + str = gai_strerror(0); + if(str && t && tv.tv_usec && msg.msg_control) + a = 0; + return a; +} +], [CFLAGS="$CFLAGS $C99FLAG -D__EXTENSIONS__ -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_ALL_SOURCE"]) + +ACX_CHECK_COMPILER_FLAG_NEEDED($C99FLAG, +[ +#include <stdbool.h> +#include <ctype.h> +int test() { + int a = 0; + return a; +} +], [CFLAGS="$CFLAGS $C99FLAG"]) + +ACX_CHECK_COMPILER_FLAG_NEEDED(-D_BSD_SOURCE, +[ +#include <ctype.h> + +int test() { + int a; + a = isascii(32); + return a; +} +], [CFLAGS="$CFLAGS -D_BSD_SOURCE"]) + +ACX_CHECK_COMPILER_FLAG_NEEDED(-D_GNU_SOURCE, +[ +#include <netinet/in.h> + +int test() { + struct in6_pktinfo inf; + int a = (int)sizeof(inf); + return a; +} +], [CFLAGS="$CFLAGS -D_GNU_SOURCE"]) + +# check again for GNU_SOURCE for setresgid. May fail if setresgid +# is not available at all. -D_FRSRESGID is to make this check unique. +# otherwise we would get the previous cached result. +ACX_CHECK_COMPILER_FLAG_NEEDED(-D_GNU_SOURCE -D_FRSRESGID, +[ +#include <unistd.h> + +int test() { + int a = setresgid(0,0,0); + a = setresuid(0,0,0); + return a; +} +], [CFLAGS="$CFLAGS -D_GNU_SOURCE"]) + +ACX_CHECK_COMPILER_FLAG_NEEDED(-D_POSIX_C_SOURCE=200112, +[ +#include "confdefs.h" +#ifdef HAVE_TIME_H +#include <time.h> +#endif +#include <netdb.h> + +int test() { + int a = 0; + char *t; + time_t time = 0; + char *buf = NULL; + const char* str = NULL; + t = ctime_r(&time, buf); + str = gai_strerror(0); + if(t && str) + a = 0; + return a; +} +], [CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112"]) + +ACX_CHECK_COMPILER_FLAG_NEEDED(-D__EXTENSIONS__, +[ +#include "confdefs.h" +#include <stdlib.h> +#include <ctype.h> +#include <sys/time.h> +#ifdef HAVE_TIME_H +#include <time.h> +#endif +#include <unistd.h> +#ifdef HAVE_GETOPT_H +#include <getopt.h> +#endif + +int test() { + int a; + char **opts = NULL; + struct timeval tv; + tv.tv_usec = 10; + srandom(32); + a = getopt(2, opts, "a"); + a = isascii(32); + if(tv.tv_usec) + a = 0; + return a; +} +], [CFLAGS="$CFLAGS -D__EXTENSIONS__"]) + +])dnl End of ACX_DETERMINE_EXT_FLAGS_UNBOUND + +dnl Check if CC supports -flto. +dnl in a way that supports clang and suncc (that flag does something else, +dnl but fails to link). It sets it in CFLAGS if it works. +AC_DEFUN([ACX_CHECK_FLTO], [ + AC_ARG_ENABLE([flto], AS_HELP_STRING([--disable-flto], [Disable link-time optimization (gcc specific option)])) + AS_IF([test "x$enable_flto" != "xno"], [ + AC_MSG_CHECKING([if $CC supports -flto]) + BAKCFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -flto" + AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [ + if $CC $CFLAGS -o conftest conftest.c 2>&1 | grep "warning: no debug symbols in executable" >/dev/null; then + CFLAGS="$BAKCFLAGS" + AC_MSG_RESULT(no) + else + AC_MSG_RESULT(yes) + fi + rm -f conftest conftest.c conftest.o + ], [CFLAGS="$BAKCFLAGS" ; AC_MSG_RESULT(no)]) + ]) +]) + +dnl Check the printf-format attribute (if any) +dnl result in HAVE_ATTR_FORMAT. +dnl Make sure you also include the AHX_CONFIG_FORMAT_ATTRIBUTE. +AC_DEFUN([ACX_CHECK_FORMAT_ATTRIBUTE], +[AC_REQUIRE([AC_PROG_CC]) +AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "format" attribute) +AC_CACHE_VAL(ac_cv_c_format_attribute, +[ac_cv_c_format_attribute=no +AC_TRY_COMPILE( +[#include <stdio.h> +void f (char *format, ...) __attribute__ ((format (printf, 1, 2))); +void (*pf) (char *format, ...) __attribute__ ((format (printf, 1, 2))); +], [ + f ("%s", "str"); +], +[ac_cv_c_format_attribute="yes"], +[ac_cv_c_format_attribute="no"]) +]) + +AC_MSG_RESULT($ac_cv_c_format_attribute) +if test $ac_cv_c_format_attribute = yes; then + AC_DEFINE(HAVE_ATTR_FORMAT, 1, [Whether the C compiler accepts the "format" attribute]) +fi +])dnl End of ACX_CHECK_FORMAT_ATTRIBUTE + +dnl Setup ATTR_FORMAT config.h parts. +dnl make sure you call ACX_CHECK_FORMAT_ATTRIBUTE also. +AC_DEFUN([AHX_CONFIG_FORMAT_ATTRIBUTE], +[ +#ifdef HAVE_ATTR_FORMAT +# define ATTR_FORMAT(archetype, string_index, first_to_check) \ + __attribute__ ((format (archetype, string_index, first_to_check))) +#else /* !HAVE_ATTR_FORMAT */ +# define ATTR_FORMAT(archetype, string_index, first_to_check) /* empty */ +#endif /* !HAVE_ATTR_FORMAT */ +]) + +dnl Check how to mark function arguments as unused. +dnl result in HAVE_ATTR_UNUSED. +dnl Make sure you include AHX_CONFIG_UNUSED_ATTRIBUTE also. +AC_DEFUN([ACX_CHECK_UNUSED_ATTRIBUTE], +[AC_REQUIRE([AC_PROG_CC]) +AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "unused" attribute) +AC_CACHE_VAL(ac_cv_c_unused_attribute, +[ac_cv_c_unused_attribute=no +AC_TRY_COMPILE( +[#include <stdio.h> +void f (char *u __attribute__((unused))); +], [ + f ("x"); +], +[ac_cv_c_unused_attribute="yes"], +[ac_cv_c_unused_attribute="no"]) +]) + +dnl Setup ATTR_UNUSED config.h parts. +dnl make sure you call ACX_CHECK_UNUSED_ATTRIBUTE also. +AC_DEFUN([AHX_CONFIG_UNUSED_ATTRIBUTE], +[ +#if defined(DOXYGEN) +# define ATTR_UNUSED(x) x +#elif defined(__cplusplus) +# define ATTR_UNUSED(x) +#elif defined(HAVE_ATTR_UNUSED) +# define ATTR_UNUSED(x) x __attribute__((unused)) +#else /* !HAVE_ATTR_UNUSED */ +# define ATTR_UNUSED(x) x +#endif /* !HAVE_ATTR_UNUSED */ +]) + +AC_MSG_RESULT($ac_cv_c_unused_attribute) +if test $ac_cv_c_unused_attribute = yes; then + AC_DEFINE(HAVE_ATTR_UNUSED, 1, [Whether the C compiler accepts the "unused" attribute]) +fi +])dnl + +dnl Pre-fun for ACX_LIBTOOL_C_ONLY +AC_DEFUN([ACX_LIBTOOL_C_PRE], [ +# skip these tests, we do not need them. +AC_DEFUN([AC_PROG_F77], [:]) +AC_DEFUN([AC_PROG_FC], [:]) +AC_DEFUN([AC_PROG_CXX], [:]) +AC_DEFUN([AC_PROG_CXXCPP], [:]) +AC_DEFUN([AC_PROG_OBJC], [:]) +AC_DEFUN([AC_PROG_OBJCCPP], [:]) +AC_DEFUN([AC_LIBTOOL_CXX], [:]) +AC_DEFUN([AC_LIBTOOL_F77], [:]) +# always use ./libtool unless override from commandline (libtool=mylibtool) +if test -z "$libtool"; then + libtool="./libtool" +fi +AC_SUBST(libtool) +# avoid libtool max commandline length test on systems that fork slowly. +AC_CANONICAL_HOST +if echo "$host_os" | grep "sunos4" >/dev/null; then + lt_cv_sys_max_cmd_len=32750; +fi +AC_PATH_TOOL(AR, ar, [false]) +if test $AR = false; then + AC_MSG_ERROR([Cannot find 'ar', please extend PATH to include it]) +fi +]) + +dnl Perform libtool check, portably, only for C +AC_DEFUN([ACX_LIBTOOL_C_ONLY], [ +dnl as a requirement so that is gets called before LIBTOOL +dnl because libtools 'AC_REQUIRE' names are right after this one, before +dnl this function contents. +AC_REQUIRE([ACX_LIBTOOL_C_PRE]) +AC_PROG_LIBTOOL +]) + +dnl Detect if u_char type is defined, otherwise define it. +AC_DEFUN([ACX_TYPE_U_CHAR], +[AC_CHECK_TYPE([u_char], , + [AC_DEFINE([u_char], [unsigned char], [Define to 'unsigned char if not defined])], [ +AC_INCLUDES_DEFAULT +#ifdef HAVE_WINSOCK2_H +# include <winsock2.h> +#endif +]) ]) + +dnl Detect if rlim_t type is defined, otherwise define it. +AC_DEFUN([ACX_TYPE_RLIM_T], +[AC_CHECK_TYPE(rlim_t, , + [AC_DEFINE([rlim_t], [unsigned long], [Define to 'int' if not defined])], [ +AC_INCLUDES_DEFAULT +#ifdef HAVE_SYS_RESOURCE_H +# include <sys/resource.h> +#endif +]) ]) + +dnl Detect if socklen_t type is defined, otherwise define it. +AC_DEFUN([ACX_TYPE_SOCKLEN_T], +[ +AC_CHECK_TYPE(socklen_t, , + [AC_DEFINE([socklen_t], [int], [Define to 'int' if not defined])], [ +AC_INCLUDES_DEFAULT +#ifdef HAVE_SYS_SOCKET_H +# include <sys/socket.h> +#endif +#ifdef HAVE_WS2TCPIP_H +# include <ws2tcpip.h> +#endif +]) ]) + +dnl Detect if in_addr_t type is defined, otherwise define it. +AC_DEFUN([ACX_TYPE_IN_ADDR_T], +[ AC_CHECK_TYPE(in_addr_t, [], [AC_DEFINE([in_addr_t], [uint32_t], [in_addr_t])], [ +AC_INCLUDES_DEFAULT +#ifdef HAVE_SYS_TYPES_H +# include <sys/types.h> +#endif +#ifdef HAVE_NETINET_IN_H +# include <netinet/in.h> +#endif +]) ]) + +dnl Detect if in_port_t type is defined, otherwise define it. +AC_DEFUN([ACX_TYPE_IN_PORT_T], +[ AC_CHECK_TYPE(in_port_t, [], [AC_DEFINE([in_port_t], [uint16_t], [in_port_t])], [ +AC_INCLUDES_DEFAULT +#ifdef HAVE_SYS_TYPES_H +# include <sys/types.h> +#endif +#ifdef HAVE_NETINET_IN_H +# include <netinet/in.h> +#endif +]) ]) + +dnl Add option to disable the evil rpath. Check whether to use rpath or not. +dnl Adds the --disable-rpath option. Uses trick to edit the ./libtool. +AC_DEFUN([ACX_ARG_RPATH], +[ +AC_ARG_ENABLE(rpath, + [ --disable-rpath disable hardcoded rpath (default=enabled)], + enable_rpath=$enableval, enable_rpath=yes) +if test "x$enable_rpath" = xno; then + dnl AC_MSG_RESULT([Fixing libtool for -rpath problems.]) + AC_CONFIG_COMMANDS([disable-rpath], [ + sed < libtool > libtool-2 \ + 's/^hardcode_libdir_flag_spec.*$'/'hardcode_libdir_flag_spec=" -D__LIBTOOL_RPATH_SED__ "/' + mv libtool-2 libtool + chmod 755 libtool + libtool="./libtool" + ]) +fi +]) + +dnl Add a -R to the RUNTIME_PATH. Only if rpath is enabled and it is +dnl an absolute path. +dnl $1: the pathname to add. +AC_DEFUN([ACX_RUNTIME_PATH_ADD], [ + if test "x$enable_rpath" = xyes; then + if echo "$1" | grep "^/" >/dev/null; then + RUNTIME_PATH="$RUNTIME_PATH -R$1" + fi + fi +]) + +dnl Common code for both ACX_WITH_SSL and ACX_WITH_SSL_OPTIONAL +dnl Takes one argument; the withval checked in those 2 functions +dnl sets up the environment for the given openssl path +AC_DEFUN([ACX_SSL_CHECKS], [ + withval=$1 + if test x_$withval != x_no; then + AC_MSG_CHECKING(for SSL) + if test x_$withval = x_ -o x_$withval = x_yes; then + withval="/usr/local/ssl /usr/lib/ssl /usr/ssl /usr/pkg /usr/local /opt/local /usr/sfw /usr" + fi + for dir in $withval; do + ssldir="$dir" + if test -f "$dir/include/openssl/ssl.h"; then + found_ssl="yes" + AC_DEFINE_UNQUOTED([HAVE_SSL], [], [Define if you have the SSL libraries installed.]) + dnl assume /usr/include is already in the include-path. + if test "$ssldir" != "/usr"; then + CPPFLAGS="$CPPFLAGS -I$ssldir/include" + LIBSSL_CPPFLAGS="$LIBSSL_CPPFLAGS -I$ssldir/include" + fi + break; + fi + done + if test x_$found_ssl != x_yes; then + AC_MSG_ERROR(Cannot find the SSL libraries in $withval) + else + AC_MSG_RESULT(found in $ssldir) + HAVE_SSL=yes + dnl assume /usr is already in the lib and dynlib paths. + if test "$ssldir" != "/usr" -a "$ssldir" != ""; then + LDFLAGS="$LDFLAGS -L$ssldir/lib" + LIBSSL_LDFLAGS="$LIBSSL_LDFLAGS -L$ssldir/lib" + ACX_RUNTIME_PATH_ADD([$ssldir/lib]) + fi + + AC_MSG_CHECKING([for HMAC_CTX_init in -lcrypto]) + LIBS="$LIBS -lcrypto" + LIBSSL_LIBS="$LIBSSL_LIBS -lcrypto" + AC_TRY_LINK(, [ + int HMAC_CTX_init(void); + (void)HMAC_CTX_init(); + ], [ + AC_MSG_RESULT(yes) + AC_DEFINE([HAVE_HMAC_CTX_INIT], 1, + [If you have HMAC_CTX_init]) + ], [ + AC_MSG_RESULT(no) + # check if -lwsock32 or -lgdi32 are needed. + BAKLIBS="$LIBS" + BAKSSLLIBS="$LIBSSL_LIBS" + LIBS="$LIBS -lgdi32" + LIBSSL_LIBS="$LIBSSL_LIBS -lgdi32" + AC_MSG_CHECKING([if -lcrypto needs -lgdi32]) + AC_TRY_LINK([], [ + int HMAC_CTX_init(void); + (void)HMAC_CTX_init(); + ],[ + AC_DEFINE([HAVE_HMAC_CTX_INIT], 1, + [If you have HMAC_CTX_init]) + AC_MSG_RESULT(yes) + ],[ + AC_MSG_RESULT(no) + LIBS="$BAKLIBS" + LIBSSL_LIBS="$BAKSSLLIBS" + LIBS="$LIBS -ldl" + LIBSSL_LIBS="$LIBSSL_LIBS -ldl" + AC_MSG_CHECKING([if -lcrypto needs -ldl]) + AC_TRY_LINK([], [ + int HMAC_CTX_init(void); + (void)HMAC_CTX_init(); + ],[ + AC_DEFINE([HAVE_HMAC_CTX_INIT], 1, + [If you have HMAC_CTX_init]) + AC_MSG_RESULT(yes) + ],[ + AC_MSG_RESULT(no) + AC_MSG_ERROR([OpenSSL found in $ssldir, but version 0.9.7 or higher is required]) + ]) + ]) + ]) + fi + AC_SUBST(HAVE_SSL) + AC_SUBST(RUNTIME_PATH) + # openssl engine functionality needs dlopen(). + BAKLIBS="$LIBS" + AC_SEARCH_LIBS([dlopen], [dl]) + if test "$LIBS" != "$BAKLIBS"; then + LIBSSL_LIBS="$LIBSSL_LIBS -ldl" + fi + fi +AC_CHECK_HEADERS([openssl/ssl.h],,, [AC_INCLUDES_DEFAULT]) +AC_CHECK_HEADERS([openssl/err.h],,, [AC_INCLUDES_DEFAULT]) +AC_CHECK_HEADERS([openssl/rand.h],,, [AC_INCLUDES_DEFAULT]) +])dnl End of ACX_SSL_CHECKS + +dnl Check for SSL, where SSL is mandatory +dnl Adds --with-ssl option, searches for openssl and defines HAVE_SSL if found +dnl Setup of CPPFLAGS, CFLAGS. Adds -lcrypto to LIBS. +dnl Checks main header files of SSL. +dnl +AC_DEFUN([ACX_WITH_SSL], +[ +AC_ARG_WITH(ssl, AC_HELP_STRING([--with-ssl=pathname], + [enable SSL (will check /usr/local/ssl + /usr/lib/ssl /usr/ssl /usr/pkg /usr/local /opt/local /usr/sfw /usr)]),[ + ],[ + withval="yes" + ]) + if test x_$withval = x_no; then + AC_MSG_ERROR([Need SSL library to do digital signature cryptography]) + fi + ACX_SSL_CHECKS($withval) +])dnl End of ACX_WITH_SSL + +dnl Check for SSL, where ssl is optional (--without-ssl is allowed) +dnl Adds --with-ssl option, searches for openssl and defines HAVE_SSL if found +dnl Setup of CPPFLAGS, CFLAGS. Adds -lcrypto to LIBS. +dnl Checks main header files of SSL. +dnl +AC_DEFUN([ACX_WITH_SSL_OPTIONAL], +[ +AC_ARG_WITH(ssl, AC_HELP_STRING([--with-ssl=pathname], + [enable SSL (will check /usr/local/ssl + /usr/lib/ssl /usr/ssl /usr/pkg /usr/local /opt/local /usr/sfw /usr)]),[ + ],[ + withval="yes" + ]) + ACX_SSL_CHECKS($withval) +])dnl End of ACX_WITH_SSL_OPTIONAL + +dnl Setup to use -lssl +dnl To use -lcrypto, use the ACX_WITH_SSL setup (before this one). +AC_DEFUN([ACX_LIB_SSL], +[ +# check if libssl needs libdl +BAKLIBS="$LIBS" +LIBS="-lssl $LIBS" +AC_MSG_CHECKING([if libssl needs libdl]) +AC_TRY_LINK_FUNC([SSL_CTX_new], [ + AC_MSG_RESULT([no]) + LIBS="$BAKLIBS" +] , [ + AC_MSG_RESULT([yes]) + LIBS="$BAKLIBS" + AC_SEARCH_LIBS([dlopen], [dl]) +]) ])dnl End of ACX_LIB_SSL + +dnl Setup to use very large files (>2Gb). +dnl setups fseeko and its own +AC_DEFUN([ACX_SYS_LARGEFILE], +[ +AC_SYS_LARGEFILE +dnl try to see if an additional _LARGEFILE_SOURCE 1 is needed to get fseeko +ACX_CHECK_COMPILER_FLAG_NEEDED(-D_LARGEFILE_SOURCE=1, +[ +#include <stdio.h> +int test() { + int a = fseeko(stdin, 0, 0); + return a; +} +], [CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE=1"]) +]) + +dnl Check getaddrinfo. +dnl Works on linux, solaris, bsd and windows(links winsock). +dnl defines HAVE_GETADDRINFO, USE_WINSOCK. +AC_DEFUN([ACX_CHECK_GETADDRINFO_WITH_INCLUDES], +[AC_REQUIRE([AC_PROG_CC]) +AC_MSG_CHECKING(for getaddrinfo) +ac_cv_func_getaddrinfo=no +AC_LINK_IFELSE( +[AC_LANG_SOURCE([[ +#ifdef __cplusplus +extern "C" +{ +#endif +char* getaddrinfo(); +char* (*f) () = getaddrinfo; +#ifdef __cplusplus +} +#endif +int main() { + ; + return 0; +} +]])], +dnl this case on linux, solaris, bsd +[ac_cv_func_getaddrinfo="yes" +dnl see if on windows +if test "$ac_cv_header_windows_h" = "yes"; then + AC_DEFINE(USE_WINSOCK, 1, [Whether the windows socket API is used]) + USE_WINSOCK="1" + LIBS="$LIBS -lws2_32" +fi +], +dnl no quick getaddrinfo, try mingw32 and winsock2 library. +ORIGLIBS="$LIBS" +LIBS="$LIBS -lws2_32" +AC_LINK_IFELSE( +[AC_LANG_PROGRAM( +[ +#ifdef HAVE_WS2TCPIP_H +#include <ws2tcpip.h> +#endif +], +[ + (void)getaddrinfo(NULL, NULL, NULL, NULL); +] +)], +[ +ac_cv_func_getaddrinfo="yes" +dnl already: LIBS="$LIBS -lws2_32" +AC_DEFINE(USE_WINSOCK, 1, [Whether the windows socket API is used]) +USE_WINSOCK="1" +], +[ +ac_cv_func_getaddrinfo="no" +LIBS="$ORIGLIBS" +]) +) + +AC_MSG_RESULT($ac_cv_func_getaddrinfo) +if test $ac_cv_func_getaddrinfo = yes; then + AC_DEFINE(HAVE_GETADDRINFO, 1, [Whether getaddrinfo is available]) +fi +])dnl Endof AC_CHECK_GETADDRINFO_WITH_INCLUDES + +dnl check if a function is deprecated. defines DEPRECATED_func in config.h. +dnl $1: function name +dnl $2: C-statement that calls the function. +dnl $3: includes for the program. +dnl $4: executes if yes +dnl $5: executes if no +AC_DEFUN([ACX_FUNC_DEPRECATED], +[ +AC_REQUIRE([AC_PROG_CC]) +AC_MSG_CHECKING(if $1 is deprecated) +cache=`echo $1 | sed 'y%.=/+-%___p_%'` +AC_CACHE_VAL(cv_cc_deprecated_$cache, +[ +echo '$3' >conftest.c +echo 'void f(){ $2 }' >>conftest.c +if test -z "`$CC -c conftest.c 2>&1 | grep deprecated`"; then +eval "cv_cc_deprecated_$cache=no" +else +eval "cv_cc_deprecated_$cache=yes" +fi +rm -f conftest conftest.o conftest.c +]) +if eval "test \"`echo '$cv_cc_deprecated_'$cache`\" = yes"; then +AC_MSG_RESULT(yes) +AC_DEFINE_UNQUOTED(AS_TR_CPP([DEPRECATED_$1]), 1, [Whether $1 is deprecated]) +: +$4 +else +AC_MSG_RESULT(no) +: +$5 +fi +])dnl end of ACX_FUNC_DEPRECATED + +dnl check if select and nonblocking sockets actually work. +dnl Needs fork(2) and select(2). +dnl defines NONBLOCKING_IS_BROKEN, and if that is true multiple reads from +dnl a nonblocking socket do not work, a new call to select is necessary. +AC_DEFUN([ACX_CHECK_NONBLOCKING_BROKEN], +[ +AC_MSG_CHECKING([if nonblocking sockets work]) +if echo $target | grep mingw32 >/dev/null; then + AC_MSG_RESULT([no (windows)]) + AC_DEFINE([NONBLOCKING_IS_BROKEN], 1, [Define if the network stack does not fully support nonblocking io (causes lower performance).]) +else +AC_RUN_IFELSE([ +AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <fcntl.h> +#include <errno.h> +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_ARPA_INET_H +#include <arpa/inet.h> +#endif +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#ifdef HAVE_TIME_H +#include <time.h> +#endif + +int main(void) +{ + int port; + int sfd, cfd; + int num = 10; + int i, p; + struct sockaddr_in a; + /* test if select and nonblocking reads work well together */ + /* open port. + fork child to send 10 messages. + select to read. + then try to nonblocking read the 10 messages + then, nonblocking read must give EAGAIN + */ + + port = 12345 + (time(0)%32); + sfd = socket(PF_INET, SOCK_DGRAM, 0); + if(sfd == -1) { + perror("socket"); + return 1; + } + memset(&a, 0, sizeof(a)); + a.sin_family = AF_INET; + a.sin_port = htons(port); + a.sin_addr.s_addr = inet_addr("127.0.0.1"); + if(bind(sfd, (struct sockaddr*)&a, sizeof(a)) < 0) { + perror("bind"); + return 1; + } + if(fcntl(sfd, F_SETFL, O_NONBLOCK) == -1) { + perror("fcntl"); + return 1; + } + + cfd = socket(PF_INET, SOCK_DGRAM, 0); + if(cfd == -1) { + perror("client socket"); + return 1; + } + a.sin_port = 0; + if(bind(cfd, (struct sockaddr*)&a, sizeof(a)) < 0) { + perror("client bind"); + return 1; + } + a.sin_port = htons(port); + + /* no handler, causes exit in 10 seconds */ + alarm(10); + + /* send and receive on the socket */ + if((p=fork()) == 0) { + for(i=0; i<num; i++) { + if(sendto(cfd, &i, sizeof(i), 0, + (struct sockaddr*)&a, sizeof(a)) < 0) { + perror("sendto"); + return 1; + } + } + } else { + /* parent */ + fd_set rset; + int x; + if(p == -1) { + perror("fork"); + return 1; + } + FD_ZERO(&rset); + FD_SET(sfd, &rset); + if(select(sfd+1, &rset, NULL, NULL, NULL) < 1) { + perror("select"); + return 1; + } + i = 0; + while(i < num) { + if(recv(sfd, &x, sizeof(x), 0) != sizeof(x)) { + if(errno == EAGAIN) + continue; + perror("recv"); + return 1; + } + i++; + } + /* now we want to get EAGAIN: nonblocking goodness */ + errno = 0; + recv(sfd, &x, sizeof(x), 0); + if(errno != EAGAIN) { + perror("trying to recv again"); + return 1; + } + /* EAGAIN encountered */ + } + + close(sfd); + close(cfd); + return 0; +} +]])], [ + AC_MSG_RESULT([yes]) +], [ + AC_MSG_RESULT([no]) + AC_DEFINE([NONBLOCKING_IS_BROKEN], 1, [Define if the network stack does not fully support nonblocking io (causes lower performance).]) +], [ + AC_MSG_RESULT([crosscompile(yes)]) +]) +fi +])dnl End of ACX_CHECK_NONBLOCKING_BROKEN + +dnl Check if mkdir has one or two arguments. +dnl defines MKDIR_HAS_ONE_ARG +AC_DEFUN([ACX_MKDIR_ONE_ARG], +[ +AC_MSG_CHECKING([whether mkdir has one arg]) +AC_TRY_COMPILE([ +#include <stdio.h> +#include <unistd.h> +#ifdef HAVE_WINSOCK2_H +#include <winsock2.h> +#endif +#ifdef HAVE_SYS_STAT_H +#include <sys/stat.h> +#endif +], [ + (void)mkdir("directory"); +], +AC_MSG_RESULT(yes) +AC_DEFINE(MKDIR_HAS_ONE_ARG, 1, [Define if mkdir has one argument.]) +, +AC_MSG_RESULT(no) +) +])dnl end of ACX_MKDIR_ONE_ARG + +dnl Check for ioctlsocket function. works on mingw32 too. +AC_DEFUN([ACX_FUNC_IOCTLSOCKET], +[ +# check ioctlsocket +AC_MSG_CHECKING(for ioctlsocket) +AC_LINK_IFELSE([AC_LANG_PROGRAM([ +#ifdef HAVE_WINSOCK2_H +#include <winsock2.h> +#endif +], [ + (void)ioctlsocket(0, 0, NULL); +])], [ +AC_MSG_RESULT(yes) +AC_DEFINE(HAVE_IOCTLSOCKET, 1, [if the function 'ioctlsocket' is available]) +],[AC_MSG_RESULT(no)]) +])dnl end of ACX_FUNC_IOCTLSOCKET + +dnl detect malloc and provide malloc compat prototype. +dnl $1: unique name for compat code +AC_DEFUN([ACX_FUNC_MALLOC], +[ + AC_MSG_CHECKING([for GNU libc compatible malloc]) + AC_RUN_IFELSE([AC_LANG_PROGRAM( +[[#if defined STDC_HEADERS || defined HAVE_STDLIB_H +#include <stdlib.h> +#else +char *malloc (); +#endif +]], [ if(malloc(0) != 0) return 1;]) +], + [AC_MSG_RESULT([no]) + AC_LIBOBJ(malloc) + AC_DEFINE_UNQUOTED([malloc], [rpl_malloc_$1], [Define if replacement function should be used.])] , + [AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_MALLOC], 1, [If have GNU libc compatible malloc])], + [AC_MSG_RESULT([no (crosscompile)]) + AC_LIBOBJ(malloc) + AC_DEFINE_UNQUOTED([malloc], [rpl_malloc_$1], [Define if replacement function should be used.])] ) +]) + +dnl Define fallback for fseeko and ftello if needed. +AC_DEFUN([AHX_CONFIG_FSEEKO], +[ +#ifndef HAVE_FSEEKO +#define fseeko fseek +#define ftello ftell +#endif /* HAVE_FSEEKO */ +]) + +dnl Define RAND_MAX if not defined +AC_DEFUN([AHX_CONFIG_RAND_MAX], +[ +#ifndef RAND_MAX +#define RAND_MAX 2147483647 +#endif +]) + +dnl Define MAXHOSTNAMELEN if not defined +AC_DEFUN([AHX_CONFIG_MAXHOSTNAMELEN], +[ +#ifndef MAXHOSTNAMELEN +#define MAXHOSTNAMELEN 256 +#endif +]) + +dnl Define IPV6_MIN_MTU if not defined +AC_DEFUN([AHX_CONFIG_IPV6_MIN_MTU], +[ +#ifndef IPV6_MIN_MTU +#define IPV6_MIN_MTU 1280 +#endif /* IPV6_MIN_MTU */ +]) + +dnl provide snprintf, vsnprintf compat prototype +dnl $1: unique name for compat code +AC_DEFUN([AHX_CONFIG_SNPRINTF], +[ +#ifndef HAVE_SNPRINTF +#define snprintf snprintf_$1 +#define vsnprintf vsnprintf_$1 +#include <stdarg.h> +int snprintf (char *str, size_t count, const char *fmt, ...); +int vsnprintf (char *str, size_t count, const char *fmt, va_list arg); +#endif /* HAVE_SNPRINTF */ +]) + +dnl provide inet_pton compat prototype. +dnl $1: unique name for compat code +AC_DEFUN([AHX_CONFIG_INET_PTON], +[ +#ifndef HAVE_INET_PTON +#define inet_pton inet_pton_$1 +int inet_pton(int af, const char* src, void* dst); +#endif /* HAVE_INET_PTON */ +]) + +dnl provide inet_ntop compat prototype. +dnl $1: unique name for compat code +AC_DEFUN([AHX_CONFIG_INET_NTOP], +[ +#ifndef HAVE_INET_NTOP +#define inet_ntop inet_ntop_$1 +const char *inet_ntop(int af, const void *src, char *dst, size_t size); +#endif +]) + +dnl provide inet_aton compat prototype. +dnl $1: unique name for compat code +AC_DEFUN([AHX_CONFIG_INET_ATON], +[ +#ifndef HAVE_INET_ATON +#define inet_aton inet_aton_$1 +int inet_aton(const char *cp, struct in_addr *addr); +#endif +]) + +dnl provide memmove compat prototype. +dnl $1: unique name for compat code +AC_DEFUN([AHX_CONFIG_MEMMOVE], +[ +#ifndef HAVE_MEMMOVE +#define memmove memmove_$1 +void *memmove(void *dest, const void *src, size_t n); +#endif +]) + +dnl provide strlcat compat prototype. +dnl $1: unique name for compat code +AC_DEFUN([AHX_CONFIG_STRLCAT], +[ +#ifndef HAVE_STRLCAT +#define strlcat strlcat_$1 +size_t strlcat(char *dst, const char *src, size_t siz); +#endif +]) + +dnl provide strlcpy compat prototype. +dnl $1: unique name for compat code +AC_DEFUN([AHX_CONFIG_STRLCPY], +[ +#ifndef HAVE_STRLCPY +#define strlcpy strlcpy_$1 +size_t strlcpy(char *dst, const char *src, size_t siz); +#endif +]) + +dnl provide gmtime_r compat prototype. +dnl $1: unique name for compat code +AC_DEFUN([AHX_CONFIG_GMTIME_R], +[ +#ifndef HAVE_GMTIME_R +#define gmtime_r gmtime_r_$1 +struct tm *gmtime_r(const time_t *timep, struct tm *result); +#endif +]) + +dnl provide w32 compat definition for sleep +AC_DEFUN([AHX_CONFIG_W32_SLEEP], +[ +#if !defined(HAVE_SLEEP) || defined(HAVE_WINDOWS_H) +#define sleep(x) Sleep((x)*1000) /* on win32 */ +#endif /* HAVE_SLEEP */ +]) + +dnl provide w32 compat definition for usleep +AC_DEFUN([AHX_CONFIG_W32_USLEEP], +[ +#ifndef HAVE_USLEEP +#define usleep(x) Sleep((x)/1000 + 1) /* on win32 */ +#endif /* HAVE_USLEEP */ +]) + +dnl provide w32 compat definition for random +AC_DEFUN([AHX_CONFIG_W32_RANDOM], +[ +#ifndef HAVE_RANDOM +#define random rand /* on win32, for tests only (bad random) */ +#endif /* HAVE_RANDOM */ +]) + +dnl provide w32 compat definition for srandom +AC_DEFUN([AHX_CONFIG_W32_SRANDOM], +[ +#ifndef HAVE_SRANDOM +#define srandom(x) srand(x) /* on win32, for tests only (bad random) */ +#endif /* HAVE_SRANDOM */ +]) + +dnl provide w32 compat definition for FD_SET_T +AC_DEFUN([AHX_CONFIG_W32_FD_SET_T], +[ +/* detect if we need to cast to unsigned int for FD_SET to avoid warnings */ +#ifdef HAVE_WINSOCK2_H +#define FD_SET_T (u_int) +#else +#define FD_SET_T +#endif +]) + +dnl Remove an extension flag from CFLAGS, define replacement to be made. +dnl Used by ACX_STRIP_EXT_FLAGS. +dnl $1: the name of the flag, for example -D_GNU_SOURCE. +AC_DEFUN([ACX_CFLAGS_STRIP], +[ + if echo $CFLAGS | grep " $1" >/dev/null 2>&1; then + CFLAGS="`echo $CFLAGS | sed -e 's/ $1//g'`" + AC_DEFINE(m4_bpatsubst(OMITTED_$1,[[-=]],_), 1, Put $1 define in config.h) + fi +]) + +dnl Remove EXT flags from the CFLAGS and set them to be defined in config.h +dnl use with ACX_DETERMINE_EXT_FLAGS. +AC_DEFUN([ACX_STRIP_EXT_FLAGS], +[ + AC_MSG_NOTICE([Stripping extension flags...]) + ACX_CFLAGS_STRIP(-D_GNU_SOURCE) + ACX_CFLAGS_STRIP(-D_BSD_SOURCE) + ACX_CFLAGS_STRIP(-D__EXTENSIONS__) + ACX_CFLAGS_STRIP(-D_POSIX_C_SOURCE=200112) + ACX_CFLAGS_STRIP(-D_XOPEN_SOURCE=600) + ACX_CFLAGS_STRIP(-D_XOPEN_SOURCE_EXTENDED=1) + ACX_CFLAGS_STRIP(-D_ALL_SOURCE) + ACX_CFLAGS_STRIP(-D_LARGEFILE_SOURCE=1) +]) dnl End of ACX_STRIP_EXT_FLAGS + +dnl define one omitted flag for config.h +dnl $1: flag name. -D_GNU_SOURCE +dnl $2: replacement define. _GNU_SOURCE +dnl $3: define value, 1 +AC_DEFUN([AHX_CONFIG_FLAG_OMITTED], +[#if defined($1) && !defined($2) +#define $2 $3 +[#]endif ]) + +dnl Wrapper for AHX_CONFIG_FLAG_OMITTED for -D style flags +dnl $1: the -DNAME or -DNAME=value string. +AC_DEFUN([AHX_CONFIG_FLAG_EXT], +[AHX_CONFIG_FLAG_OMITTED(m4_bpatsubst(OMITTED_$1,[[-=]],_),m4_bpatsubst(m4_bpatsubst($1,-D,),=.*$,),m4_if(m4_bregexp($1,=),-1,1,m4_bpatsubst($1,^.*=,))) +]) + +dnl config.h part to define omitted cflags, use with ACX_STRIP_EXT_FLAGS. +AC_DEFUN([AHX_CONFIG_EXT_FLAGS], +[AHX_CONFIG_FLAG_EXT(-D_GNU_SOURCE) +AHX_CONFIG_FLAG_EXT(-D_BSD_SOURCE) +AHX_CONFIG_FLAG_EXT(-D__EXTENSIONS__) +AHX_CONFIG_FLAG_EXT(-D_POSIX_C_SOURCE=200112) +AHX_CONFIG_FLAG_EXT(-D_XOPEN_SOURCE=600) +AHX_CONFIG_FLAG_EXT(-D_XOPEN_SOURCE_EXTENDED=1) +AHX_CONFIG_FLAG_EXT(-D_ALL_SOURCE) +AHX_CONFIG_FLAG_EXT(-D_LARGEFILE_SOURCE=1) +]) + +dnl check if memcmp is using signed characters and replace if so. +AC_DEFUN([ACX_CHECK_MEMCMP_SIGNED], +[AC_MSG_CHECKING([if memcmp compares unsigned]) +AC_RUN_IFELSE([AC_LANG_SOURCE([[ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +int main(void) +{ + char a = 255, b = 0; + if(memcmp(&a, &b, 1) < 0) + return 1; + return 0; +} +]])], [AC_MSG_RESULT([yes]) ], +[ AC_MSG_RESULT([no]) + AC_DEFINE([MEMCMP_IS_BROKEN], [1], [Define if memcmp() does not compare unsigned bytes]) + AC_LIBOBJ([memcmp]) +], [ AC_MSG_RESULT([cross-compile no]) + AC_DEFINE([MEMCMP_IS_BROKEN], [1], [Define if memcmp() does not compare unsigned bytes]) + AC_LIBOBJ([memcmp]) +]) ]) + +dnl define memcmp to its replacement, pass unique id for program as arg +AC_DEFUN([AHX_MEMCMP_BROKEN], [ +#ifdef MEMCMP_IS_BROKEN +#include "compat/memcmp.h" +#define memcmp memcmp_$1 +int memcmp(const void *x, const void *y, size_t n); +#endif +]) + +dnl ACX_CHECK_SS_FAMILY - check for sockaddr_storage.ss_family +AC_DEFUN([ACX_CHECK_SS_FAMILY], +[AC_CHECK_MEMBER([struct sockaddr_storage.ss_family], [], [ + AC_CHECK_MEMBER([struct sockaddr_storage.__ss_family], [ + AC_DEFINE([ss_family], [__ss_family], [Fallback member name for socket family in struct sockaddr_storage]) + ],, [AC_INCLUDES_DEFAULT +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_NETDB_H +#include <netdb.h> +#endif +#ifdef HAVE_ARPA_INET_H +#include <arpa/inet.h> +#endif + ]) +], [AC_INCLUDES_DEFAULT +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_NETDB_H +#include <netdb.h> +#endif +#ifdef HAVE_ARPA_INET_H +#include <arpa/inet.h> +#endif +]) ]) + +dnl End of file |