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It can # be used in projects which are not available under the GNU General Public # License or the GNU Library General Public License but which still want # to provide support for the GNU gettext functionality. # Please note that the actual code of the GNU gettext library is covered # by the GNU Library General Public License, and the rest of the GNU # gettext package package is covered by the GNU General Public License. # They are *not* in the public domain. # serial 10 dnl Usage: AM_WITH_NLS([TOOLSYMBOL], [NEEDSYMBOL], [LIBDIR]). dnl If TOOLSYMBOL is specified and is 'use-libtool', then a libtool library dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static, dnl depending on --{enable,disable}-{shared,static} and on the presence of dnl AM-DISABLE-SHARED). 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If empty, dnl the value `$(top_builddir)/intl/' is used. dnl dnl The result of the configuration is one of three cases: dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled dnl and used. dnl Catalog format: GNU --> install in $(datadir) dnl Catalog extension: .mo after installation, .gmo in source tree dnl 2) GNU gettext has been found in the system's C library. dnl Catalog format: GNU --> install in $(datadir) dnl Catalog extension: .mo after installation, .gmo in source tree dnl 3) No internationalization, always use English msgid. dnl Catalog format: none dnl Catalog extension: none dnl The use of .gmo is historical (it was needed to avoid overwriting the dnl GNU format catalogs when building on a platform with an X/Open gettext), dnl but we keep it in order not to force irrelevant filename changes on the dnl maintainers. dnl AC_DEFUN([AM_WITH_NLS], [AC_MSG_CHECKING([whether NLS is requested]) dnl Default is enabled NLS AC_ARG_ENABLE(nls, [ --disable-nls do not use Native Language Support], USE_NLS=$enableval, USE_NLS=yes) AC_MSG_RESULT($USE_NLS) AC_SUBST(USE_NLS) BUILD_INCLUDED_LIBINTL=no USE_INCLUDED_LIBINTL=no INTLLIBS= dnl If we use NLS figure out what method if test "$USE_NLS" = "yes"; then AC_DEFINE(ENABLE_NLS, 1, [Define to 1 if translation of program messages to the user's native language is requested.]) AC_MSG_CHECKING([whether included gettext is requested]) AC_ARG_WITH(included-gettext, [ --with-included-gettext use the GNU gettext library included here], nls_cv_force_use_gnu_gettext=$withval, nls_cv_force_use_gnu_gettext=no) AC_MSG_RESULT($nls_cv_force_use_gnu_gettext) nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext" if test "$nls_cv_force_use_gnu_gettext" != "yes"; then dnl User does not insist on using GNU NLS library. Figure out what dnl to use. If GNU gettext is available we use this. Else we have dnl to fall back to GNU NLS library. CATOBJEXT=NONE dnl Add a version number to the cache macros. define(gt_cv_func_gnugettext_libc, [gt_cv_func_gnugettext]ifelse([$2], need-ngettext, 2, 1)[_libc]) define(gt_cv_func_gnugettext_libintl, [gt_cv_func_gnugettext]ifelse([$2], need-ngettext, 2, 1)[_libintl]) AC_CHECK_HEADER(libintl.h, [AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc, [AC_TRY_LINK([#include extern int _nl_msg_cat_cntr;], [bindtextdomain ("", ""); return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr], gt_cv_func_gnugettext_libc=yes, gt_cv_func_gnugettext_libc=no)]) if test "$gt_cv_func_gnugettext_libc" != "yes"; then AC_CACHE_CHECK([for GNU gettext in libintl], gt_cv_func_gnugettext_libintl, [gt_save_LIBS="$LIBS" LIBS="$LIBS -lintl $LIBICONV" AC_TRY_LINK([#include extern int _nl_msg_cat_cntr;], [bindtextdomain ("", ""); return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr], gt_cv_func_gnugettext_libintl=yes, gt_cv_func_gnugettext_libintl=no) LIBS="$gt_save_LIBS"]) fi dnl If an already present or preinstalled GNU gettext() is found, dnl use it. But if this macro is used in GNU gettext, and GNU dnl gettext is already preinstalled in libintl, we update this dnl libintl. (Cf. the install rule in intl/Makefile.in.) if test "$gt_cv_func_gnugettext_libc" = "yes" \ || { test "$gt_cv_func_gnugettext_libintl" = "yes" \ && test "$PACKAGE" != gettext; }; then AC_DEFINE(HAVE_GETTEXT, 1, [Define if the GNU gettext() function is already present or preinstalled.]) if test "$gt_cv_func_gnugettext_libintl" = "yes"; then dnl If iconv() is in a separate libiconv library, then anyone dnl linking with libintl{.a,.so} also needs to link with dnl libiconv. INTLLIBS="-lintl $LIBICONV" fi gt_save_LIBS="$LIBS" LIBS="$LIBS $INTLLIBS" AC_CHECK_FUNCS(dcgettext) LIBS="$gt_save_LIBS" dnl Search for GNU msgfmt in the PATH. AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt, [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1], :) AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT) dnl Search for GNU xgettext in the PATH. AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext, [$ac_dir/$ac_word --omit-header /dev/null >/dev/null 2>&1], :) CATOBJEXT=.gmo fi ]) if test "$CATOBJEXT" = "NONE"; then dnl GNU gettext is not found in the C library. dnl Fall back on GNU gettext library. nls_cv_use_gnu_gettext=yes fi fi if test "$nls_cv_use_gnu_gettext" = "yes"; then dnl Mark actions used to generate GNU NLS library. INTLOBJS="\$(GETTOBJS)" AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt, [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1], :) AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT) AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext, [$ac_dir/$ac_word --omit-header /dev/null >/dev/null 2>&1], :) AC_SUBST(MSGFMT) BUILD_INCLUDED_LIBINTL=yes USE_INCLUDED_LIBINTL=yes CATOBJEXT=.gmo INTLLIBS="ifelse([$3],[],\$(top_builddir)/intl,[$3])/libintl.ifelse([$1], use-libtool, [l], [])a $LIBICONV" LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'` fi dnl This could go away some day; the PATH_PROG_WITH_TEST already does it. dnl Test whether we really found GNU msgfmt. if test "$GMSGFMT" != ":"; then dnl If it is no GNU msgfmt we define it as : so that the dnl Makefiles still can work. if $GMSGFMT --statistics /dev/null >/dev/null 2>&1; then : ; else AC_MSG_RESULT( [found msgfmt program is not GNU msgfmt; ignore it]) GMSGFMT=":" fi fi dnl This could go away some day; the PATH_PROG_WITH_TEST already does it. dnl Test whether we really found GNU xgettext. if test "$XGETTEXT" != ":"; then dnl If it is no GNU xgettext we define it as : so that the dnl Makefiles still can work. if $XGETTEXT --omit-header /dev/null >/dev/null 2>&1; then : ; else AC_MSG_RESULT( [found xgettext program is not GNU xgettext; ignore it]) XGETTEXT=":" fi fi dnl We need to process the po/ directory. POSUB=po fi AC_OUTPUT_COMMANDS( [for ac_file in $CONFIG_FILES; do # Support "outfile[:infile[:infile...]]" case "$ac_file" in *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;; esac # PO directories have a Makefile.in generated from Makefile.in.in. case "$ac_file" in */Makefile.in) # Adjust a relative srcdir. ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'` ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`" ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'` # In autoconf-2.13 it is called $ac_given_srcdir. # In autoconf-2.50 it is called $srcdir. test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir" case "$ac_given_srcdir" in .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;; /*) top_srcdir="$ac_given_srcdir" ;; *) top_srcdir="$ac_dots$ac_given_srcdir" ;; esac if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then rm -f "$ac_dir/POTFILES" test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES" sed -e "/^#/d" -e "/^[ ]*\$/d" -e "s,.*, $top_srcdir/& \\\\," -e "\$s/\(.*\) \\\\/\1/" < "$ac_given_srcdir/$ac_dir/POTFILES.in" > "$ac_dir/POTFILES" test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile" sed -e "/POTFILES =/r $ac_dir/POTFILES" "$ac_dir/Makefile.in" > "$ac_dir/Makefile" fi ;; esac done]) dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL dnl to 'yes' because some of the testsuite requires it. if test "$PACKAGE" = gettext; then BUILD_INCLUDED_LIBINTL=yes fi dnl intl/plural.c is generated from intl/plural.y. It requires bison, dnl because plural.y uses bison specific features. It requires at least dnl bison-1.26 because earlier versions generate a plural.c that doesn't dnl compile. dnl bison is only needed for the maintainer (who touches plural.y). But in dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put dnl the rule in general Makefile. Now, some people carelessly touch the dnl files or have a broken "make" program, hence the plural.c rule will dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not dnl present or too old. AC_CHECK_PROGS([INTLBISON], [bison]) if test -z "$INTLBISON"; then ac_verc_fail=yes else dnl Found it, now check the version. AC_MSG_CHECKING([version of bison]) changequote(<<,>>)dnl ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'` case $ac_prog_version in '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;; 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*) changequote([,])dnl ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;; *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;; esac AC_MSG_RESULT([$ac_prog_version]) fi if test $ac_verc_fail = yes; then INTLBISON=: fi dnl These rules are solely for the distribution goal. While doing this dnl we only have to keep exactly one list of the available catalogs dnl in configure.in. for lang in $ALL_LINGUAS; do GMOFILES="$GMOFILES $lang.gmo" POFILES="$POFILES $lang.po" done dnl Make all variables we use known to autoconf. AC_SUBST(BUILD_INCLUDED_LIBINTL) AC_SUBST(USE_INCLUDED_LIBINTL) AC_SUBST(CATALOGS) AC_SUBST(CATOBJEXT) AC_SUBST(GMOFILES) AC_SUBST(INTLLIBS) AC_SUBST(INTLOBJS) AC_SUBST(POFILES) AC_SUBST(POSUB) dnl For backward compatibility. Some configure.ins may be using this. nls_cv_header_intl= nls_cv_header_libgt= dnl For backward compatibility. Some Makefiles may be using this. DATADIRNAME=share AC_SUBST(DATADIRNAME) dnl For backward compatibility. Some Makefiles may be using this. INSTOBJEXT=.mo AC_SUBST(INSTOBJEXT) dnl For backward compatibility. Some Makefiles may be using this. GENCAT=gencat AC_SUBST(GENCAT) ]) dnl Usage: Just like AM_WITH_NLS, which see. AC_DEFUN([AM_GNU_GETTEXT], [AC_REQUIRE([AC_PROG_MAKE_SET])dnl AC_REQUIRE([AC_PROG_CC])dnl AC_REQUIRE([AC_CANONICAL_HOST])dnl AC_REQUIRE([AC_PROG_RANLIB])dnl AC_REQUIRE([AC_ISC_POSIX])dnl AC_REQUIRE([AC_HEADER_STDC])dnl AC_REQUIRE([AC_C_CONST])dnl AC_REQUIRE([AC_C_INLINE])dnl AC_REQUIRE([AC_TYPE_OFF_T])dnl AC_REQUIRE([AC_TYPE_SIZE_T])dnl AC_REQUIRE([AC_FUNC_ALLOCA])dnl AC_REQUIRE([AC_FUNC_MMAP])dnl AC_REQUIRE([jm_GLIBC21])dnl AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \ stdlib.h string.h unistd.h sys/param.h]) AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getcwd getegid geteuid \ getgid getuid mempcpy munmap putenv setenv setlocale stpcpy strchr strcasecmp \ strdup strtoul tsearch __argz_count __argz_stringify __argz_next]) AM_ICONV AM_LANGINFO_CODESET AM_LC_MESSAGES AM_WITH_NLS([$1],[$2],[$3]) if test "x$CATOBJEXT" != "x"; then if test "x$ALL_LINGUAS" = "x"; then LINGUAS= else AC_MSG_CHECKING(for catalogs to be installed) NEW_LINGUAS= for presentlang in $ALL_LINGUAS; do useit=no for desiredlang in ${LINGUAS-$ALL_LINGUAS}; do # Use the presentlang catalog if desiredlang is # a. equal to presentlang, or # b. a variant of presentlang (because in this case, # presentlang can be used as a fallback for messages # which are not translated in the desiredlang catalog). case "$desiredlang" in "$presentlang"*) useit=yes;; esac done if test $useit = yes; then NEW_LINGUAS="$NEW_LINGUAS $presentlang" fi done LINGUAS=$NEW_LINGUAS AC_MSG_RESULT($LINGUAS) fi dnl Construct list of names of catalog files to be constructed. if test -n "$LINGUAS"; then for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done fi fi dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly dnl find the mkinstalldirs script in another subdir but $(top_srcdir). dnl Try to locate is. MKINSTALLDIRS= if test -n "$ac_aux_dir"; then MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs" fi if test -z "$MKINSTALLDIRS"; then MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs" fi AC_SUBST(MKINSTALLDIRS) dnl Enable libtool support if the surrounding package wishes it. INTL_LIBTOOL_SUFFIX_PREFIX=ifelse([$1], use-libtool, [l], []) AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX) ]) # Search path for a program which passes the given test. # Ulrich Drepper , 1996. # # This file can be copied and used freely without restrictions. It can # be used in projects which are not available under the GNU General Public # License or the GNU Library General Public License but which still want # to provide support for the GNU gettext functionality. # Please note that the actual code of the GNU gettext library is covered # by the GNU Library General Public License, and the rest of the GNU # gettext package package is covered by the GNU General Public License. # They are *not* in the public domain. # serial 2 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR, dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]]) AC_DEFUN([AM_PATH_PROG_WITH_TEST], [# Extract the first word of "$2", so it can be a program name with args. set dummy $2; ac_word=[$]2 AC_MSG_CHECKING([for $ac_word]) AC_CACHE_VAL(ac_cv_path_$1, [case "[$]$1" in /*) ac_cv_path_$1="[$]$1" # Let the user override the test with a path. ;; *) IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" for ac_dir in ifelse([$5], , $PATH, [$5]); do test -z "$ac_dir" && ac_dir=. if test -f $ac_dir/$ac_word; then if [$3]; then ac_cv_path_$1="$ac_dir/$ac_word" break fi fi done IFS="$ac_save_ifs" dnl If no 4th arg is given, leave the cache variable unset, dnl so AC_PATH_PROGS will keep looking. ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4" ])dnl ;; esac])dnl $1="$ac_cv_path_$1" if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then AC_MSG_RESULT([$]$1) else AC_MSG_RESULT(no) fi AC_SUBST($1)dnl ]) #serial 2 # Test for the GNU C Library, version 2.1 or newer. # From Bruno Haible. AC_DEFUN([jm_GLIBC21], [ AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer, ac_cv_gnu_library_2_1, [AC_EGREP_CPP([Lucky GNU user], [ #include #ifdef __GNU_LIBRARY__ #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2) Lucky GNU user #endif #endif ], ac_cv_gnu_library_2_1=yes, ac_cv_gnu_library_2_1=no) ] ) AC_SUBST(GLIBC21) GLIBC21="$ac_cv_gnu_library_2_1" ] ) #serial AM2 dnl From Bruno Haible. AC_DEFUN([AM_ICONV], [ dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and dnl those with the standalone portable GNU libiconv installed). AC_ARG_WITH([libiconv-prefix], [ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [ for dir in `echo "$withval" | tr : ' '`; do if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi done ]) AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [ am_cv_func_iconv="no, consider installing GNU libiconv" am_cv_lib_iconv=no AC_TRY_LINK([#include #include ], [iconv_t cd = iconv_open("",""); iconv(cd,NULL,NULL,NULL,NULL); iconv_close(cd);], am_cv_func_iconv=yes) if test "$am_cv_func_iconv" != yes; then am_save_LIBS="$LIBS" LIBS="$LIBS -liconv" AC_TRY_LINK([#include #include ], [iconv_t cd = iconv_open("",""); iconv(cd,NULL,NULL,NULL,NULL); iconv_close(cd);], am_cv_lib_iconv=yes am_cv_func_iconv=yes) LIBS="$am_save_LIBS" fi ]) if test "$am_cv_func_iconv" = yes; then AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.]) AC_MSG_CHECKING([for iconv declaration]) AC_CACHE_VAL(am_cv_proto_iconv, [ AC_TRY_COMPILE([ #include #include extern #ifdef __cplusplus "C" #endif #if defined(__STDC__) || defined(__cplusplus) size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); #else size_t iconv(); #endif ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const") am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` AC_MSG_RESULT([$]{ac_t:- }[$]am_cv_proto_iconv) AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1, [Define as const if the declaration of iconv() needs const.]) fi LIBICONV= if test "$am_cv_lib_iconv" = yes; then LIBICONV="-liconv" fi AC_SUBST(LIBICONV) ]) #serial AM1 dnl From Bruno Haible. AC_DEFUN([AM_LANGINFO_CODESET], [ AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset, [AC_TRY_LINK([#include ], [char* cs = nl_langinfo(CODESET);], am_cv_langinfo_codeset=yes, am_cv_langinfo_codeset=no) ]) if test $am_cv_langinfo_codeset = yes; then AC_DEFINE(HAVE_LANGINFO_CODESET, 1, [Define if you have and nl_langinfo(CODESET).]) fi ]) # Check whether LC_MESSAGES is available in . # Ulrich Drepper , 1995. # # This file can be copied and used freely without restrictions. It can # be used in projects which are not available under the GNU General Public # License or the GNU Library General Public License but which still want # to provide support for the GNU gettext functionality. # Please note that the actual code of the GNU gettext library is covered # by the GNU Library General Public License, and the rest of the GNU # gettext package package is covered by the GNU General Public License. # They are *not* in the public domain. # serial 2 AC_DEFUN([AM_LC_MESSAGES], [if test $ac_cv_header_locale_h = yes; then AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES, [AC_TRY_LINK([#include ], [return LC_MESSAGES], am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)]) if test $am_cv_val_LC_MESSAGES = yes; then AC_DEFINE(HAVE_LC_MESSAGES, 1, [Define if your file defines LC_MESSAGES.]) fi fi]) dnl Check to find out whether the running kernel has support for TUN/TAP AC_DEFUN(tinc_TUNTAP, [ AC_ARG_WITH(kernel, [ --with-kernel=dir give the directory with kernel sources] [ (default: /usr/src/linux)], kerneldir="$withval", kerneldir="/usr/src/linux" ) AC_CACHE_CHECK([for linux/if_tun.h], tinc_cv_linux_if_tun_h, [ AC_TRY_COMPILE([#include "$kerneldir/include/linux/if_tun.h"], [int a = IFF_TAP;], if_tun_h="\"$kerneldir/include/linux/if_tun.h\"", [AC_TRY_COMPILE([#include ], [int a = IFF_TAP;], if_tun_h="default", if_tun_h="no" )] ) if test $if_tun_h = no; then tinc_cv_linux_if_tun_h=none else tinc_cv_linux_if_tun_h="$if_tun_h" fi ]) if test $tinc_cv_linux_if_tun_h != none; then AC_DEFINE(HAVE_TUNTAP) if test $tinc_cv_linux_if_tun_h != default; then AC_DEFINE_UNQUOTED(LINUX_IF_TUN_H, $tinc_cv_linux_if_tun_h) fi fi AC_SUBST(LINUX_IF_TUN_H) AC_SUBST(HAVE_TUNTAP) ]) dnl Check to find the OpenSSL headers/libraries AC_DEFUN(tinc_OPENSSL, [ tinc_ac_save_CPPFLAGS="$CPPFLAGS" AC_ARG_WITH(openssl-include, [ --with-openssl-include=DIR OpenSSL headers directory (without trailing /openssl)], [openssl_include="$withval" CFLAGS="$CFLAGS -I$withval" CPPFLAGS="$CPPFLAGS -I$withval"] ) AC_ARG_WITH(openssl-lib, [ --with-openssl-lib=DIR OpenSSL library directory], [openssl_lib="$withval" LIBS="$LIBS -L$withval"] ) AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h, [], [AC_MSG_ERROR("OpenSSL header files not found."); break] ) CPPFLAGS="$tinc_ac_save_CPPFLAGS" AC_CHECK_LIB(crypto, SHA1_version, [LIBS="$LIBS -lcrypto"], [AC_MSG_ERROR("OpenSSL libraries not found.")] ) AC_CHECK_FUNCS(RAND_pseudo_bytes) AC_CHECK_FUNC(OpenSSL_add_all_algorithms, [], AC_CHECK_FUNC(SSLeay_add_all_algorithms, [AC_DEFINE(HAVE_SSLEAY_ADD_ALL_ALGORITHMS)], [AC_MSG_ERROR("Missing required OpenSSL functionality!")] ) ) AC_CHECK_FUNC(dlopen, [], AC_CHECK_LIB(dl, dlopen, [LIBS="$LIBS -ldl"], [AC_MSG_ERROR("OpenSSL depends on libdl.")] ) ) ]) dnl Check to find the zlib headers/libraries AC_DEFUN(tinc_ZLIB, [ tinc_ac_save_CPPFLAGS="$CPPFLAGS" AC_ARG_WITH(zlib-include, [ --with-zlib-include=DIR zlib headers directory], [zlib_include="$withval" CFLAGS="$CFLAGS -I$withval" CPPFLAGS="$CPPFLAGS -I$withval"] ) AC_ARG_WITH(zlib-lib, [ --with-zlib-lib=DIR zlib library directory], [zlib_lib="$withval" LIBS="$LIBS -L$withval"] ) AC_CHECK_HEADERS(zlib.h, [], [AC_MSG_ERROR("zlib header files not found."); break] ) CPPFLAGS="$tinc_ac_save_CPPFLAGS" AC_CHECK_LIB(z, compress2, [LIBS="$LIBS -lz"], [AC_MSG_ERROR("zlib libraries not found.")] ) ])