Allow symmetric encryption with gpgme_op_encrypt_sign.
[gpgme.git] / configure.ac
index 3cac826..015995b 100644 (file)
@@ -1,7 +1,7 @@
 # configure.ac for GPGME
 # Copyright (C) 2000 Werner Koch (dd9jn)
 # Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
-#               2009, 2010, 2011, 2012  g10 Code GmbH
+#               2009, 2010, 2011, 2012, 2013  g10 Code GmbH
 #
 # This file is part of GPGME.
 #
 AC_PREREQ(2.59)
 min_automake_version="1.11"
 
-# Version number: Remember to change it immediately *after* a release.
-#                 Make sure to run  "svn up" and "./autogen.sh --force"
-#                 before a "make dist".  See below for the LT versions.
-#                 Never do a binary build with the same version number
-#                 in another year; this would mess up the build number.
-#
-# The GIT version is usually the next intended release version with
-# the string "-gitNNNNNN" appended.  The reason for this is that tests
-# for a specific feature can already be done under the assumption that
-# the GIT version is the most recent one in a branch.  To disable the
-# GIT version for the real release, set the my_isgit macro to no.
-m4_define(my_version, [1.3.3])
-m4_define(my_isgit, [yes])
-
-m4_define([svn_revision], m4_esyscmd([printf "%d" $( (svn info 2>/dev/null \
-            || echo 'Revision: 0')|sed -n '/^Revision:/ {s/[^0-9]//gp;q;}')]))
-m4_define([git_revision], m4_esyscmd([git branch -v 2>/dev/null \
-          | awk '/^\* / {printf "%s",$3}']))
-m4_define([my_full_version], [my_version[]m4_if(my_isgit,[yes],
-          [m4_if(git_revision,[],[-svn[]svn_revision],[-git[]git_revision])])])
-
-AC_INIT([gpgme],[my_full_version],[http://bugs.gnupg.org])
+# To build a release you need to create a tag with the version number
+# (git tag -s gpgme-n.m.k) and run "./autogen.sh --force".  Please
+# bump the version number immediately after the release and do another
+# commit and push so that the git magic is able to work.  See below
+# for the LT versions.
+m4_define(mym4_version_major, [1])
+m4_define(mym4_version_minor, [4])
+m4_define(mym4_version_micro, [2])
+
+# Below is m4 magic to extract and compute the revision number, the
+# decimalized short revision number, a beta version string, and a flag
+# indicating a development version (mym4_isgit). Note that the m4
+# processing is done by autoconf and not during the configure run.
+m4_define(mym4_version,
+          [mym4_version_major.mym4_version_minor.mym4_version_micro])
+m4_define([mym4_revision],
+          m4_esyscmd([git rev-parse --short HEAD | tr -d '\n\r']))
+m4_define([mym4_revision_dec],
+          m4_esyscmd_s([echo $((0x$(echo ]mym4_revision[|head -c 4)))]))
+m4_define([mym4_betastring],
+          m4_esyscmd_s([git describe --match 'gpgme-[0-9].*[0-9]' --long|\
+                        awk -F- '$3!=0{print"-beta"$3}']))
+m4_define([mym4_isgit],m4_if(mym4_betastring,[],[no],[yes]))
+m4_define([mym4_full_version],[mym4_version[]mym4_betastring])
+
+AC_INIT([gpgme],[mym4_full_version],[http://bugs.gnupg.org])
 
 # LT Version numbers, remember to change them just *before* a release.
 #   (Code changed:                     REVISION++)
@@ -51,29 +55,29 @@ AC_INIT([gpgme],[my_full_version],[http://bugs.gnupg.org])
 #   (Interfaces added:                 AGE++)
 #   (Interfaces removed/changed:       AGE=0)
 #
-LIBGPGME_LT_CURRENT=19
+LIBGPGME_LT_CURRENT=20
 # Subtract 2 from this value if you want to make the LFS transition an
 # ABI break.  [Note to self: Remove this comment with the next regular break.]
-LIBGPGME_LT_AGE=8
+LIBGPGME_LT_AGE=9
 LIBGPGME_LT_REVISION=1
 
 # If the API is changed in an incompatible way: increment the next counter.
 GPGME_CONFIG_API_VERSION=1
 ##############################################
 
+NEED_GPG_ERROR_VERSION=1.8
 NEED_LIBASSUAN_API=2
 NEED_LIBASSUAN_VERSION=2.0.2
 
 
-m4_define([git_brevis],m4_esyscmd(printf "%u" 0x[]m4_substr(git_revision,0,4)))
-BUILD_REVISION=m4_if(git_revision,[],[svn_revision],[git_brevis])
 PACKAGE=$PACKAGE_NAME
 VERSION=$PACKAGE_VERSION
 
-AC_CONFIG_SRCDIR(src/gpgme.h.in)
-AM_CONFIG_HEADER(config.h)
+AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
-AM_INIT_AUTOMAKE($PACKAGE, $VERSION)
+AC_CONFIG_SRCDIR(src/gpgme.h.in)
+AC_CONFIG_HEADER(config.h)
+AM_INIT_AUTOMAKE
 AM_MAINTAINER_MODE
 AC_CANONICAL_HOST
 
@@ -91,8 +95,9 @@ AH_VERBATIM([_REENTRANT],
 
 AC_PROG_CC
 AC_PROG_CXX
-AC_CHECK_PROGS(GITLOG_TO_CHANGELOG, gitlog-to-changelog,
-               [build-aux/gitlog-to-changelog])
+
+# Note: A suitable gitlog-to-changelog script can be found in GnuPG master.
+AC_CHECK_PROGS(GITLOG_TO_CHANGELOG, gitlog-to-changelog, [gitlog-to-changelog])
 
 AC_SUBST(LIBGPGME_LT_CURRENT)
 AC_SUBST(LIBGPGME_LT_AGE)
@@ -102,6 +107,9 @@ AC_SUBST(PACKAGE)
 AC_SUBST(VERSION)
 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package])
 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version of this package])
+VERSION_NUMBER=m4_esyscmd(printf "0x%02x%02x%02x" mym4_version_major \
+                          mym4_version_minor mym4_version_micro)
+AC_SUBST(VERSION_NUMBER)
 
 # Don't default to build static libs.
 LT_PREREQ([2.2.6])
@@ -131,6 +139,7 @@ GPGCONF_DEFAULT=no
 G13_DEFAULT=no
 component_system=None
 have_dosish_system=no
+have_android_system=no
 have_w32_system=no
 have_w64_system=no
 build_w32_glib=no
@@ -142,6 +151,9 @@ case "${host}" in
     *-mingw32ce*)
         have_w32ce_system=yes
        ;;
+    *-linux-androideabi)
+        have_android_system=yes
+        ;;
 esac
 case "${host}" in
     *-mingw32ce*|*-mingw32*)
@@ -210,12 +222,38 @@ if test "$have_w32ce_system" = yes; then
 fi
 AM_CONDITIONAL(HAVE_W32CE_SYSTEM, test "$have_w32ce_system" = yes)
 
+if test "$have_android_system" = yes; then
+   AC_DEFINE(HAVE_ANDROID_SYSTEM,1, [Defined if we build for an Android system])
+fi
+AM_CONDITIONAL(HAVE_ANDROID_SYSTEM, test "$have_android_system" = yes)
+
 AM_CONDITIONAL(BUILD_W32_GLIB, test "$build_w32_glib" = yes)
 AM_CONDITIONAL(BUILD_W32_QT, test "$build_w32_qt" = yes)
 
 AM_CONDITIONAL(HAVE_PTHREAD, test "$have_pthread" = "yes")
 
 
+#
+# Provide information about the build.
+#
+BUILD_REVISION="mym4_revision"
+AC_SUBST(BUILD_REVISION)
+AC_DEFINE_UNQUOTED(BUILD_REVISION, "$BUILD_REVISION",
+                   [GIT commit id revision used to build this package])
+
+changequote(,)dnl
+BUILD_FILEVERSION=`echo "$PACKAGE_VERSION"|sed 's/\([0-9.]*\).*/\1./;s/\./,/g'`
+changequote([,])dnl
+BUILD_FILEVERSION="${BUILD_FILEVERSION}mym4_revision_dec"
+AC_SUBST(BUILD_FILEVERSION)
+
+BUILD_TIMESTAMP=`date -u +%Y-%m-%dT%H:%M+0000 2>/dev/null || date`
+AC_SUBST(BUILD_TIMESTAMP)
+AC_DEFINE_UNQUOTED(BUILD_TIMESTAMP, "$BUILD_TIMESTAMP",
+                   [The time this package was configured for a build])
+
+
+
 
 # Checks for header files.
 AC_CHECK_HEADERS_ONCE([locale.h sys/select.h sys/uio.h argp.h
@@ -232,31 +270,43 @@ AC_TYPE_UINTPTR_T
 # A simple compile time check in gpgme.h for GNU/Linux systems that
 # prevents a file offset bits mismatch between gpgme and the application.
 NEED__FILE_OFFSET_BITS=0
-case "$ac_cv_sys_file_offset_bits" in
-  "" | no | unknown) ;;
-  *)
-  NEED__FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits
-  ;;
-esac
+if test "$have_w32_system" != yes; then
+  case "$ac_cv_sys_file_offset_bits" in
+    "" | no | unknown) ;;
+    *)
+    NEED__FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits
+    ;;
+  esac
+fi
 AC_SUBST(NEED__FILE_OFFSET_BITS)
 
 # Figure out platform dependent typedefs for gpgme.h
 if test "$have_w32_system" = yes; then
-   if test "$have_w64_system" = yes; then
-      INSERT__TYPEDEFS_FOR_GPGME_H="/* Typedefs for the 64 bit W32 API.  */
-#include <basetsd.h>
-typedef long off_t;
-typedef __int64 ssize_t;"
-   else
-      INSERT__TYPEDEFS_FOR_GPGME_H="/* Typedefs for the 32 bit W32 API.  */
-typedef long off_t;
-typedef long ssize_t;"
-   fi
+    INSERT__TYPEDEFS_FOR_GPGME_H="
+#ifdef _WIN64
+# include <stdint.h>
+  typedef int64_t gpgme_off_t;
+  typedef int64_t gpgme_ssize_t;
+#else /* _WIN32 */
+  typedef long gpgme_off_t;
+  typedef long gpgme_ssize_t;
+#endif /* _WIN32 */"
+    API__OFF_T="gpgme_off_t"
+    API__SSIZE_T="gpgme_ssize_t"
 else
-   INSERT__TYPEDEFS_FOR_GPGME_H="#include <sys/types.h>"
+    INSERT__TYPEDEFS_FOR_GPGME_H="
+#include <sys/types.h>
+typedef off_t   gpgme_off_t;
+typedef ssize_t gpgme_ssize_t;"
+    API__OFF_T="off_t"
+    API__SSIZE_T="ssize_t"
 fi
 AC_SUBST(INSERT__TYPEDEFS_FOR_GPGME_H)
 AM_SUBST_NOTMAKE(INSERT__TYPEDEFS_FOR_GPGME_H)
+AC_SUBST(API__OFF_T)
+AM_SUBST_NOTMAKE(API__OFF_T)
+AC_SUBST(API__SSIZE_T)
+AM_SUBST_NOTMAKE(API__SSIZE_T)
 
 # Checks for compiler features.
 if test "$GCC" = yes; then
@@ -278,6 +328,8 @@ fi
 
 
 # Checks for library functions.
+AC_MSG_NOTICE([checking for libraries])
+
 AC_FUNC_FSEEKO
 
 AC_REPLACE_FUNCS(vasprintf)
@@ -326,7 +378,9 @@ fi
 AC_CHECK_FUNCS(setlocale)
 
 # Checking for libgpg-error.
-AM_PATH_GPG_ERROR(1.8,, AC_MSG_ERROR([libgpg-error was not found]))
+have_gpg_error=no
+AM_PATH_GPG_ERROR("$NEED_GPG_ERROR_VERSION",
+                  have_gpg_error=yes, have_gpg_error=no)
 AC_DEFINE(GPG_ERR_SOURCE_DEFAULT, GPG_ERR_SOURCE_GPGME,
           [The default error source for GPGME.])
 
@@ -824,9 +878,20 @@ AC_CHECK_MEMBER(struct cmsghdr.cmsg_len,
 #include <unistd.h>
        ])
 
-use_descriptor_passing=no
+
+dnl There seems to be a problem with Apple and decriptor passing.
+dnl Until we found a solution we change the default to no.
+dnl See bug 1483.
+case "${host}" in
+    *-apple-darwin*)
+      use_descriptor_passing=no
+      ;;
+    *)
+      use_descriptor_passing=yes
+      ;;
+esac
 AC_ARG_ENABLE(fd-passing,
-  AC_HELP_STRING([--enable-fd-passing], [use FD passing if supported]),
+  AC_HELP_STRING([--disable-fd-passing], [do not use FD passing]),
   use_descriptor_passing=$enableval)
 
 if test "$supports_descriptor_passing" != "yes"; then
@@ -852,23 +917,6 @@ fi
 AM_CONDITIONAL(HAVE_UISERVER, test "$uiserver" != "no")
 
 
-# Generate values for the DLL version info
-
-dnl Windows uses an internal build number.  We use the last day of the
-dnl year concatenated with the hour for it.  WARNING: You should not
-dnl do a build with the same version number in another year.
-if test "$have_w32_system" = yes; then
-    BUILD_TIMESTAMP=`date --iso-8601=minutes`
-    BUILD_NUMBER="$(date -u '+%j%H' | sed 's/^0*\(.*\)/\1/')"
-    changequote(,)dnl
-    BUILD_FILEVERSION=`echo "$VERSION" | sed 's/\([0-9.]*\).*/\1./;s/\./,/g'`
-    changequote([,])dnl
-    BUILD_FILEVERSION="${BUILD_FILEVERSION}${BUILD_NUMBER}"
-fi
-AC_SUBST(BUILD_NUMBER)
-AC_SUBST(BUILD_TIMESTAMP)
-AC_SUBST(BUILD_FILEVERSION)
-
 # Add a few constants to help porting to W32
 AH_VERBATIM([SEPCONSTANTS],
 [
@@ -890,6 +938,9 @@ AH_BOTTOM([
 
 /* Under WindowsCE we need gpg-error's strerror macro.  */
 #define GPG_ERR_ENABLE_ERRNO_MACROS 1
+
+#define CRIGHTBLURB "Copyright (C) 2000 Werner Koch\n" \
+                    "Copyright (C) 2001--2013 g10 Code GmbH\n"
 ])
 
 
@@ -916,13 +967,23 @@ AC_CHECK_TYPES([error_t], [],
 
 
 # A substitution to set generated files in a Emacs buffer to read-only.
-AC_SUBST(emacs_local_vars_begin, ['Local Variables:'])
+AC_SUBST(emacs_local_vars_begin, [['Local][ ][Variables:']])
 AC_SUBST(emacs_local_vars_read_only, ['buffer-read-only: t'])
 AC_SUBST(emacs_local_vars_end, ['End:'])
 
 
 # Last check.
 die=no
+if test "$have_gpg_error" = "no"; then
+   die=yes
+   AC_MSG_NOTICE([[
+***
+*** You need libgpg-error to build this program.
+**  This library is for example available at
+***   ftp://ftp.gnupg.org/gcrypt/libgpg-error
+*** (at least version $NEED_GPG_ERROR_VERSION is required.)
+***]])
+fi
 if test "$have_libassuan" = "no"; then
    die=yes
    AC_MSG_NOTICE([[
@@ -961,22 +1022,21 @@ AC_OUTPUT
 echo "
         GPGME v${VERSION} has been configured as follows:
 
+        Revision:        mym4_revision  (mym4_revision_dec)
+        Platform:        $host
+
         GnuPG path:      $GPG
         GnuPG version:   $GPG_VERSION, min. $NEED_GPG_VERSION
-
         GpgSM path:      $GPGSM
         GpgSM version:   $GPGSM_VERSION, min. $NEED_GPGSM_VERSION
-
         GpgConf path:    $GPGCONF
         GpgConf version: $GPGCONF_VERSION, min. $NEED_GPGCONF_VERSION
-
         G13 path:        $G13
         G13 version:     $G13_VERSION, min. $NEED_G13_VERSION
 
-        Assuan version:  $libassuan_version, min. $NEED_LIBASSUAN_VERSION
+        Assuan version:  $libassuan_config_version, min. $NEED_LIBASSUAN_VERSION
 
         UI Server:       $uiserver
         FD Passing:      $use_descriptor_passing
-
         GPGME Pthread:   $have_pthread
 "