* cryptmiss.c: New.
[gnupg.git] / acinclude.m4
index 2d0b69b..9dce248 100644 (file)
@@ -27,6 +27,73 @@ AC_DEFUN(GNUPG_CHECK_TYPEDEF,
   ])
 
 
+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
+AC_DEFUN(GNUPG_FIX_HDR_VERSION,
+  [ sed "s/^#define $2 \".*/#define $2 \"$VERSION\"/" $srcdir/$1 > $srcdir/$1.tmp
+    if cmp -s $srcdir/$1 $srcdir/$1.tmp 2>/dev/null; then
+        rm -f $srcdir/$1.tmp
+    else
+        rm -f $srcdir/$1
+        if mv $srcdir/$1.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 $1.tmp
+                         ]])
+        fi
+        AC_MSG_WARN([fixed the $2 macro in $1])
+    fi
+  ])
+
+
+dnl GNUPG_CHECK_GNUMAKE
+dnl
+AC_DEFUN(GNUPG_CHECK_GNUMAKE,
+  [
+    if ${MAKE-make} --version 2>/dev/null | grep '^GNU ' >/dev/null 2>&1; then
+        :
+    else
+        AC_MSG_WARN([[
+***
+*** It seems that you are not using GNU make.  Some make tools have serious
+*** flaws and you may not be able to build this software at all. Before you
+*** complain, please try GNU make:  GNU make is easy to build and available
+*** at all GNU archives.  It is always available from ftp.gnu.org:/gnu/make.
+***]])
+    fi
+  ])
+
+dnl GNUPG_CHECK_FAQPROG
+dnl
+AC_DEFUN(GNUPG_CHECK_FAQPROG,
+  [ AC_MSG_CHECKING(for faqprog.pl)
+    if faqprog.pl -V 2>/dev/null | grep '^faqprog.pl ' >/dev/null 2>&1; then
+        working_faqprog=yes
+        FAQPROG="faqprog.pl"
+    else 
+       working_faqprog=no
+        FAQPROG=": "
+    fi
+    AC_MSG_RESULT($working_faqprog)
+    AC_SUBST(FAQPROG)
+    AM_CONDITIONAL(WORKING_FAQPROG, test "$working_faqprog" = "yes" )
+
+    if test $working_faqprog = no; then
+       AC_MSG_WARN([[
+***
+*** It seems that the faqprog.pl program is not installed.
+*** Unless you do not change the source of the FAQs it is not required.
+*** The working version of this utility should be available at:
+***   ftp://ftp.gnupg.org/pub/gcrypt/contrib/faqprog.pl
+***]])
+    fi
+  ])       
+
+
 
 dnl GNUPG_LINK_FILES( SRC, DEST )
 dnl same as AC_LINK_FILES, but collect the files to link in
@@ -49,6 +116,8 @@ define(GNUPG_DO_LINK_FILES,
   ])
 
 
+
+
 dnl GNUPG_CHECK_ENDIAN
 dnl define either LITTLE_ENDIAN_HOST or BIG_ENDIAN_HOST
 dnl
@@ -188,34 +257,38 @@ define(GNUPG_CHECK_PIC,
 
 
 ######################################################################
-# Check for rdynamic flag
-# This sets CFLAGS_RDYNAMIC to the required flags
+# Check for export-dynamic flag
+# This sets CFLAGS_EXPORTDYNAMIC to the required flags
 ######################################################################
-dnl GNUPG_CHECK_RDYNAMIC
+dnl GNUPG_CHECK_EXPORTDYNAMIC
 dnl
-define(GNUPG_CHECK_RDYNAMIC,
-  [ AC_MSG_CHECKING(how to specify -rdynamic)
-    CFLAGS_RDYNAMIC=
+define(GNUPG_CHECK_EXPORTDYNAMIC,
+  [ AC_MSG_CHECKING(how to specify -export-dynamic)
     if test "$cross_compiling" = yes; then
-        AC_MSG_RESULT(assume none)
+      AC_MSG_RESULT(assume none)
+      CFLAGS_EXPORTDYNAMIC=""
     else
-        case "$host_os" in
-          solaris* )
-            CFLAGS_RDYNAMIC="-Wl,-dy"
-            ;;
-
-          freebsd2* | osf4* )
-            CFLAGS_RDYNAMIC=""
-            ;;
-          * )
-            CFLAGS_RDYNAMIC="-Wl,-export-dynamic"
-            ;;
-        esac
-        AC_MSG_RESULT($CFLAGS_RDYNAMIC)
+      AC_CACHE_VAL(gnupg_cv_export_dynamic,[
+      if AC_TRY_COMMAND([${CC-cc} $CFLAGS -Wl,--version 2>&1 |
+                                          grep "GNU ld" >/dev/null]); then
+          # using gnu's linker
+          gnupg_cv_export_dynamic="-Wl,-export-dynamic"
+      else
+          case "$host_os" in
+            hpux* )
+              gnupg_cv_export_dynamic="-Wl,-E"
+              ;;
+            * )
+              gnupg_cv_export_dynamic=""
+              ;;
+          esac
+      fi
+      ])
+      AC_MSG_RESULT($gnupg_cv_export_dynamic)
+      CFLAGS_EXPORTDYNAMIC="$gnupg_cv_export_dynamic"
     fi
   ])
 
-
 #####################################################################
 # Check for SysV IPC  (from GIMP)
 #   And see whether we have a SHM_LOCK (FreeBSD does not have it).
@@ -270,7 +343,8 @@ define(GNUPG_CHECK_IPC,
           AC_TRY_COMPILE([#include <sys/types.h>
              #include <sys/ipc.h>
              #include <sys/shm.h>],[
-             int foo( int shm_id ) {  shmctl(shm_id, SHM_LOCK, 0); }
+             int shm_id;
+             shmctl(shm_id, SHM_LOCK, 0);
              ],
              gnupg_cv_ipc_have_shm_lock="yes",
              gnupg_cv_ipc_have_shm_lock="no"
@@ -289,11 +363,46 @@ define(GNUPG_CHECK_IPC,
 ######################################################################
 # 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 <assert.h>
+                    #ifdef HAVE_SYS_MMAN_H
+                    #include <sys/mman.h>
+                    #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 "$gnupg_cv_mlock_is_in_sys_mman" = "yes"; then
+                AC_DEFINE(HAVE_MLOCK)
+            fi
+        fi
+    fi
     if test "$ac_cv_func_mlock" = "yes"; then
         AC_MSG_CHECKING(whether mlock is broken)
           AC_CACHE_VAL(gnupg_cv_have_broken_mlock,
@@ -342,59 +451,48 @@ define(GNUPG_CHECK_MLOCK,
     fi
   ])
 
-#####################################################################
-# AM_SYS_SYMBOL_UNDERSCORE, AM_SYS_NM_PARSE:
-# This has been taken from glib 1.2.0 acinclude.m4 which states that
-# it is copyrighted by the FSF
-################################################################### ##
-dnl AM_SYS_SYMBOL_UNDERSCORE - does the compiler prefix global symbols
-dnl                            with an underscore?
-AC_DEFUN(AM_SYS_SYMBOL_UNDERSCORE,
-[AC_REQUIRE([AM_PROG_NM])dnl
-AC_REQUIRE([AM_SYS_NM_PARSE])dnl
-AC_MSG_CHECKING([for _ prefix in compiled symbols])
-AC_CACHE_VAL(ac_cv_sys_symbol_underscore,
-[ac_cv_sys_symbol_underscore=no
-cat > conftest.$ac_ext <<EOF
-void nm_test_func(){}
-int main(){nm_test_func;return 0;}
-EOF
-if AC_TRY_EVAL(ac_compile); then
-  # Now try to grab the symbols.
-  ac_nlist=conftest.nm
-  if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
-    # See whether the symbols have a leading underscore.
-    if egrep '^_nm_test_func' "$ac_nlist" >/dev/null; then
-      ac_cv_sys_symbol_underscore=yes
-    else
-      if egrep '^nm_test_func ' "$ac_nlist" >/dev/null; then
-        :
+
+
+################################################################
+# GNUPG_PROG_NM - find the path to a BSD-compatible name lister
+################################################################
+AC_DEFUN(GNUPG_PROG_NM,
+[AC_MSG_CHECKING([for BSD-compatible nm])
+AC_CACHE_VAL(ac_cv_path_NM,
+[if test -n "$NM"; then
+  # Let the user override the test.
+  ac_cv_path_NM="$NM"
+else
+  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in /usr/ucb /usr/ccs/bin $PATH /bin; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/nm; then
+      # Check to see if the nm accepts a BSD-compat flag.
+      # Adding the `sed 1q' prevents false positives on HP-UX, which says:
+      #   nm: unknown option "B" ignored
+      if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
+        ac_cv_path_NM="$ac_dir/nm -B"
+      elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
+        ac_cv_path_NM="$ac_dir/nm -p"
       else
-        echo "configure: cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
+        ac_cv_path_NM="$ac_dir/nm"
       fi
+      break
     fi
-  else
-    echo "configure: cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
-  fi
-else
-  echo "configure: failed program was:" >&AC_FD_CC
-  cat conftest.c >&AC_FD_CC
-fi
-rm -rf conftest*
+  done
+  IFS="$ac_save_ifs"
+  test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
+fi])
+NM="$ac_cv_path_NM"
+AC_MSG_RESULT([$NM])
+AC_SUBST(NM)
 ])
-AC_MSG_RESULT($ac_cv_sys_symbol_underscore)
-if test x$ac_cv_sys_symbol_underscore = xyes; then
-  AC_DEFINE(WITH_SYMBOL_UNDERSCORE,1,
-  [define if compiled symbols have a leading underscore])
-fi
-])
-
 
-dnl AM_SYS_NM_PARSE - Check for command to grab the raw symbol name followed
-dnl                   by C symbol name from nm.
-AC_DEFUN(AM_SYS_NM_PARSE,
+# GNUPG_SYS_NM_PARSE - Check for command ro grab the raw symbol name followed
+# by C symbol name from nm.
+AC_DEFUN(GNUPG_SYS_NM_PARSE,
 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AM_PROG_NM])dnl
+AC_REQUIRE([GNUPG_PROG_NM])dnl
 # Check for command to grab the raw symbol name followed by C symbol from nm.
 AC_MSG_CHECKING([command to parse $NM output])
 AC_CACHE_VAL(ac_cv_sys_global_symbol_pipe,
@@ -416,7 +514,7 @@ case "$host_os" in
 aix*)
   ac_symcode='[BCDTU]'
   ;;
-sunos* | cygwin32* | mingw32*)
+freebsd* | netbsd* | openbsd* | bsdi* | sunos* | cygwin32* | mingw32*)
   ac_sympat='_\([_A-Za-z][_A-Za-z0-9]*\)'
   ac_symxfrm='_\1 \1'
   ;;
@@ -557,7 +655,205 @@ if test -z "$ac_cv_sys_global_symbol_pipe"; then
 fi
 AC_MSG_RESULT($ac_result)
 ])
-dnl end of AM_SYS_NM_PARSE
+
+# 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)
+])
+
+# GNUPG_SYS_SYMBOL_UNDERSCORE - does the compiler prefix global symbols
+#                              with an underscore?
+AC_DEFUN(GNUPG_SYS_SYMBOL_UNDERSCORE,
+[tmp_do_check="no"
+case "${target}" in
+    i386-emx-os2 | i[3456]86-pc-os2*emx | i386-pc-msdosdjgpp)
+        ac_cv_sys_symbol_underscore=yes
+        ;;
+    *)
+      if test "$cross_compiling" = yes; then
+         ac_cv_sys_symbol_underscore=yes
+      else
+         tmp_do_check="yes"
+      fi
+       ;;
+esac
+
+if test "$tmp_do_check" = "yes"; then
+AC_REQUIRE([GNUPG_PROG_NM])dnl
+AC_REQUIRE([GNUPG_SYS_NM_PARSE])dnl
+AC_MSG_CHECKING([for _ prefix in compiled symbols])
+AC_CACHE_VAL(ac_cv_sys_symbol_underscore,
+[ac_cv_sys_symbol_underscore=no
+cat > conftest.$ac_ext <<EOF
+void nm_test_func(){}
+int main(){nm_test_func;return 0;}
+EOF
+if AC_TRY_EVAL(ac_compile); then
+  # Now try to grab the symbols.
+  ac_nlist=conftest.nm
+  if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
+    # See whether the symbols have a leading underscore.
+    if egrep '^_nm_test_func' "$ac_nlist" >/dev/null; then
+      ac_cv_sys_symbol_underscore=yes
+    else
+      if egrep '^nm_test_func ' "$ac_nlist" >/dev/null; then
+        :
+      else
+        echo "configure: cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
+      fi
+    fi
+  else
+    echo "configure: cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
+  fi
+else
+  echo "configure: failed program was:" >&AC_FD_CC
+  cat conftest.c >&AC_FD_CC
+fi
+rm -rf conftest*
+])
+else
+AC_MSG_CHECKING([for _ prefix in compiled symbols])
+fi
+AC_MSG_RESULT($ac_cv_sys_symbol_underscore)
+if test x$ac_cv_sys_symbol_underscore = xyes; then
+  AC_DEFINE(WITH_SYMBOL_UNDERSCORE,1,
+  [define if compiled symbols have a leading underscore])
+fi
+])
+
+dnl Stolen from gcc
+dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
+dnl of the usual 2.
+AC_DEFUN(GNUPG_FUNC_MKDIR_TAKES_ONE_ARG,
+[AC_CHECK_HEADERS(sys/stat.h unistd.h direct.h)
+AC_CACHE_CHECK([if mkdir takes one argument], gnupg_cv_mkdir_takes_one_arg,
+[AC_TRY_COMPILE([
+#include <sys/types.h>
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#ifdef HAVE_DIRECT_H
+# include <direct.h>
+#endif], [mkdir ("foo", 0);],
+        gnupg_cv_mkdir_takes_one_arg=no, gnupg_cv_mkdir_takes_one_arg=yes)])
+if test $gnupg_cv_mkdir_takes_one_arg = yes ; then
+  AC_DEFINE(MKDIR_TAKES_ONE_ARG)
+fi
+])
+
+dnl GPH_PROG_DOCBOOK()
+dnl Check whether we have the needed Docbook environment
+dnl and issue a warning if this is not the case.
+dnl
+dnl This test defines these variables for substitution:
+dnl    DB2HTML - command used to convert Docbook to HTML
+dnl    DB2TEX  - command used to convert Docbook to TeX
+dnl    DB2MAN  - command used to convert Docbook to man pages
+dnl    JADE    - command to invoke jade
+dnl    JADETEX - command to invoke jadetex
+dnl    DSL_FOR_HTML - the stylesheet used to for the Docbook->HTML conversion
+dnl The following make conditionals are defined
+dnl    HAVE_DB2MAN  - defined when db2man is available
+dnl    HAVE_DB2TEX  - defined when db2tex is available
+dnl    HAVE_DB2HTML - defined when db2html is available
+dnl    HAVE_DOCBOOK - defined when the entire Docbook environment is present
+dnl    HAVE_JADE    - defined when jade is installed
+dnl    HAVE_JADETEX - defined when jadetex is installed
+dnl
+dnl (wk 2000-02-17)
+dnl
+AC_DEFUN(GPH_PROG_DOCBOOK,
+  [  AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+     all=yes
+     AC_PATH_PROG(DB2MAN, docbook-to-man, no)
+     test "$DB2MAN" = no && all=no
+     AM_CONDITIONAL(HAVE_DB2MAN, test "$DB2MAN" != no )
+
+     AC_PATH_PROG(JADE, jade, no)
+     test "$JADE" = no && all=no
+     AM_CONDITIONAL(HAVE_JADE, test "$JADE" != no )
+
+     AC_PATH_PROG(JADETEX, jadetex, no)
+     test "$JADETEX" = no && all=no
+     AM_CONDITIONAL(HAVE_JADETEX, test "$JADETEX" != no )
+
+     stylesheet_dirs='
+/usr/local/lib/dsssl/stylesheets/docbook
+/usr/local/share/dsssl/stylesheets/docbook
+/usr/local/lib/sgml/stylesheet/dsssl/docbook/nwalsh
+/usr/local/share/sgml/stylesheet/dsssl/docbook/nwalsh
+/usr/lib/dsssl/stylesheets/docbook
+/usr/share/dsssl/stylesheets/docbook
+/usr/lib/sgml/stylesheet/dsssl/docbook/nwalsh
+/usr/share/sgml/stylesheet/dsssl/docbook/nwalsh
+'
+
+    AC_MSG_CHECKING(for TeX stylesheet)
+    dsl=none
+    for d in ${stylesheet_dirs}; do
+        file=${d}/print/docbook.dsl
+        if test -f $file; then
+            dsl=$file
+            break
+        fi
+    done
+    AC_MSG_RESULT([$dsl])
+    okay=no
+    if test $dsl = none ; then
+       DB2TEX="$missing_dir/missing db2tex"
+       all=no
+    else
+       DB2TEX="$JADE -t tex -i tex -d $dsl"
+       okay=yes
+    fi
+    AC_SUBST(DB2TEX)
+    AM_CONDITIONAL(HAVE_DB2TEX, test $okay = yes )
+
+    if ( $ac_aux_dir/db2html.in --version) < /dev/null > /dev/null 2>&1; then
+        :
+    else
+        AC_ERROR([needed $ac_aux_dir/db2html.in not found])
+    fi
+
+    AC_MSG_CHECKING(for HTML stylesheet)
+    DSL_FOR_HTML="none"
+    for d in ${stylesheet_dirs}; do
+        file=${d}/html/docbook.dsl
+        if test -f $file; then
+            DSL_FOR_HTML=$file
+            break
+        fi
+    done
+    AC_MSG_RESULT([$DSL_FOR_HTML])
+    okay=no
+    if test $DSL_FOR_HTML = none ; then
+       DB2HTML="$missing_dir/missing db2html"
+       all=no
+    else
+       DB2HTML="`cd $ac_aux_dir && pwd`/db2html --copyfiles"
+       okay=yes
+    fi
+    AC_SUBST(DB2HTML)
+    AC_SUBST(DSL_FOR_HTML)
+    AM_CONDITIONAL(HAVE_DB2HTML, test $okay = yes )
+
+    AM_CONDITIONAL(HAVE_DOCBOOK, test "$all" != yes )
+    if test $all = no ; then
+        AC_MSG_WARN([[
+***
+*** It seems that the Docbook environment is not installed as required.
+*** We will try to build everything,  but if you either touch some files
+*** or use a bogus make tool, you may run into problems.
+*** Docbook is normally only needed to build the documentation.
+***]])
+    fi
+  ])
+
+
 
 
 dnl *-*wedit:notab*-*  Please keep this as the last line.