dnl macros to configure Libgcrypt dnl Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. dnl dnl This file is part of Libgcrypt. dnl dnl Libgcrypt is free software; you can redistribute it and/or modify dnl it under the terms of the GNU Lesser General Public License as dnl published by the Free Software Foundation; either version 2.1 of dnl the License, or (at your option) any later version. dnl dnl Libgcrypt is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the dnl GNU Lesser General Public License for more details. dnl dnl You should have received a copy of the GNU Lesser General Public dnl License along with this program; if not, write to the Free Software dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA dnl GNUPG_MSG_PRINT(STRING) dnl print a message dnl define(GNUPG_MSG_PRINT, [ echo $ac_n "$1"" $ac_c" 1>&AS_MESSAGE_FD([]) ]) dnl GNUPG_CHECK_TYPEDEF(TYPE, HAVE_NAME) dnl Check whether a typedef exists and create a #define $2 if it exists dnl AC_DEFUN(GNUPG_CHECK_TYPEDEF, [ AC_MSG_CHECKING(for $1 typedef) AC_CACHE_VAL(gnupg_cv_typedef_$1, [AC_TRY_COMPILE([#define _GNU_SOURCE 1 #include #include ], [ #undef $1 int a = sizeof($1); ], gnupg_cv_typedef_$1=yes, gnupg_cv_typedef_$1=no )]) AC_MSG_RESULT($gnupg_cv_typedef_$1) if test "$gnupg_cv_typedef_$1" = yes; then AC_DEFINE($2,1,[Defined if a `]$1[' is typedef'd]) fi ]) dnl GNUPG_FIX_HDR_VERSION(FILE, NAME) dnl Make the version number in gcrypt/gcrypt.h the same as the one here. dnl (this is easier than to have a .in file just for one substitution) dnl We must use a temp file in the current directory because make distcheck dnl install all sourcefiles RO. dnl AC_DEFUN(GNUPG_FIX_HDR_VERSION, [ sed "s/^#define $2 \".*/#define $2 \"$VERSION\"/" $srcdir/$1 > fixhdr.tmp if cmp -s $srcdir/$1 fixhdr.tmp 2>/dev/null; then rm -f fixhdr.tmp else rm -f $srcdir/$1 if mv fixhdr.tmp $srcdir/$1 ; then : else AC_MSG_ERROR([[ *** *** Failed to fix the version string macro $2 in $1. *** The old file has been saved as fixhdr.tmp ***]]) fi AC_MSG_WARN([fixed the $2 macro in $1]) fi ]) dnl GNUPG_CHECK_GNUMAKE dnl AC_DEFUN(GNUPG_CHECK_GNUMAKE, [ if ${MAKE-make} --version 2>/dev/null | grep '^GNU ' >/dev/null 2>&1; then : else AC_MSG_WARN([[ *** *** It seems that you are not using GNU make. Some make tools have serious *** flaws and you may not be able to build this software at all. Before you *** complain, please try GNU make: GNU make is easy to build and available *** at all GNU archives. It is always available from ftp.gnu.org:/gnu/make. ***]]) fi ]) ###################################################################### # Check whether mlock is broken (hpux 10.20 raises a SIGBUS if mlock # is not called from uid 0 (not tested whether uid 0 works) # For DECs Tru64 we have also to check whether mlock is in librt # mlock is there a macro using memlk() ###################################################################### dnl GNUPG_CHECK_MLOCK dnl define(GNUPG_CHECK_MLOCK, [ AC_CHECK_FUNCS(mlock) if test "$ac_cv_func_mlock" = "no"; then AC_CHECK_HEADERS(sys/mman.h) if test "$ac_cv_header_sys_mman_h" = "yes"; then # Add librt to LIBS: AC_CHECK_LIB(rt, memlk) AC_CACHE_CHECK([whether mlock is in sys/mman.h], gnupg_cv_mlock_is_in_sys_mman, [AC_TRY_LINK([ #include #ifdef HAVE_SYS_MMAN_H #include #endif ], [ int i; /* glibc defines this for functions which it implements * to always fail with ENOSYS. Some functions are actually * named something starting with __ and the normal name * is an alias. */ #if defined (__stub_mlock) || defined (__stub___mlock) choke me #else mlock(&i, 4); #endif ; return 0; ], gnupg_cv_mlock_is_in_sys_mman=yes, gnupg_cv_mlock_is_in_sys_mman=no)]) if test "$gnupg_cv_mlock_is_in_sys_mman" = "yes"; then AC_DEFINE(HAVE_MLOCK,1, [Defined if the system supports an mlock() call]) fi fi fi if test "$ac_cv_func_mlock" = "yes"; then AC_MSG_CHECKING(whether mlock is broken) AC_CACHE_VAL(gnupg_cv_have_broken_mlock, AC_TRY_RUN([ #include #include #include #include #include #include int main() { char *pool; int err; long int pgsize = getpagesize(); pool = malloc( 4096 + pgsize ); if( !pool ) return 2; pool += (pgsize - ((long int)pool % pgsize)); err = mlock( pool, 4096 ); if( !err || errno == EPERM ) return 0; /* okay */ return 1; /* hmmm */ } ], gnupg_cv_have_broken_mlock="no", gnupg_cv_have_broken_mlock="yes", gnupg_cv_have_broken_mlock="assume-no" ) ) if test "$gnupg_cv_have_broken_mlock" = "yes"; then AC_DEFINE(HAVE_BROKEN_MLOCK,1, [Defined if the mlock() call does not work]) AC_MSG_RESULT(yes) else if test "$gnupg_cv_have_broken_mlock" = "no"; then AC_MSG_RESULT(no) else AC_MSG_RESULT(assuming no) fi fi fi ]) # GNUPG_SYS_LIBTOOL_CYGWIN32 - find tools needed on cygwin32 AC_DEFUN(GNUPG_SYS_LIBTOOL_CYGWIN32, [AC_CHECK_TOOL(DLLTOOL, dlltool, false) AC_CHECK_TOOL(AS, as, false) ]) dnl LIST_MEMBER() dnl Check wether an element ist contained in a list. Set `found' to dnl `1' if the element is found in the list, to `0' otherwise. AC_DEFUN(LIST_MEMBER, [ name=$1 list=$2 found=0 for n in $list; do if test "x$name" = "x$n"; then found=1 fi done ]) dnl AM_PATH_GPG_ERROR([MINIMUM-VERSION, dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]]) dnl Test for libgpg-error and define GPG_ERROR_CFLAGS and GPG_ERROR_LIBS dnl AC_DEFUN(AM_PATH_GPG_ERROR, [ AC_ARG_WITH(gpg-error-prefix, AC_HELP_STRING([--with-gpg-error-prefix=PFX], [prefix where GPG Error is installed (optional)]), gpg_error_config_prefix="$withval", gpg_error_config_prefix="") if test x$gpg_error_config_prefix != x ; then gpg_error_config_args="$gpg_error_config_args --prefix=$gpg_error_config_prefix" if test x${GPG_ERROR_CONFIG+set} != xset ; then GPG_ERROR_CONFIG=$gpg_error_config_prefix/bin/gpg-error-config fi fi AC_PATH_PROG(GPG_ERROR_CONFIG, gpg-error-config, no) min_gpg_error_version=ifelse([$1], ,0.0.0,$1) AC_MSG_CHECKING(for GPG Error - version >= $min_gpg_error_version) ok=no if test "$GPG_ERROR_CONFIG" != "no" ; then req_major=`echo $min_gpg_error_version | \ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\1/'` req_minor=`echo $min_gpg_error_version | \ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\2/'` gpg_error_config_version=`$GPG_ERROR_CONFIG $gpg_error_config_args --version` major=`echo $gpg_error_config_version | \ sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'` minor=`echo $gpg_error_config_version | \ sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'` if test "$major" -gt "$req_major"; then ok=yes else if test "$major" -eq "$req_major"; then if test "$minor" -ge "$req_minor"; then ok=yes fi fi fi fi if test $ok = yes; then GPG_ERROR_CFLAGS=`$GPG_ERROR_CONFIG $gpg_error_config_args --cflags` GPG_ERROR_LIBS=`$GPG_ERROR_CONFIG $gpg_error_config_args --libs` AC_MSG_RESULT(yes) ifelse([$2], , :, [$2]) else GPG_ERROR_CFLAGS="" GPG_ERROR_LIBS="" AC_MSG_RESULT(no) ifelse([$3], , :, [$3]) fi AC_SUBST(GPG_ERROR_CFLAGS) AC_SUBST(GPG_ERROR_LIBS) ])