X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=configure.ac;h=c1e88daa3f1d2a694c04aeb30c22faef63a337d7;hb=405053fafa88022c68e7adf04c91a56c1cde7dd8;hp=50176e17235dce416a2da64754e6a453cfe6fa50;hpb=c269cec334f940d82146f70d69125b1caef08baa;p=elogind.git

diff --git a/configure.ac b/configure.ac
index 50176e172..c1e88daa3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -301,6 +301,39 @@ fi
 AC_SUBST(ACL_LIBS)
 AM_CONDITIONAL([HAVE_ACL], [test "x$have_acl" != xno])
 
+# ------------------------------------------------------------------------------
+AC_ARG_ENABLE([],
+        AS_HELP_STRING([--disable-gcrypt],[Disable optional GCRYPT support]),
+                [case "${enableval}" in
+                        yes) have_gcrypt=yes ;;
+                        no) have_gcrypt=no ;;
+                        *) AC_MSG_ERROR(bad value ${enableval} for --disable-gcrypt) ;;
+                esac],
+                [have_gcrypt=auto])
+
+if test "x${have_gcrypt}" != xno ; then
+        AM_PATH_LIBGCRYPT(
+                [1.4.5],
+                [have_gcrypt=yes],
+                [if test "x$have_gcrypt" = xyes ; then
+                        AC_MSG_ERROR([*** GCRYPT headers not found.])
+                fi])
+
+        if test "x$have_gcrypt" = xyes ; then
+                GCRYPT_LIBS="$LIBGCRYPT_LIBS"
+                GCRYPT_CFLAGS="$LIBGCRYPT_CFLAGS"
+                AC_DEFINE(HAVE_GCRYPT, 1, [GCRYPT available])
+        else
+                have_gcrypt=no
+        fi
+else
+        GCRYPT_LIBS=
+        GCRYPT_CFLAGS=
+fi
+AC_SUBST(GCRYPT_LIBS)
+AC_SUBST(GCRYPT_CFLAGS)
+AM_CONDITIONAL([HAVE_GCRYPT], [test "x$have_gcrypt" != xno])
+
 # ------------------------------------------------------------------------------
 AC_ARG_ENABLE([audit],
         AS_HELP_STRING([--disable-audit],[Disable optional AUDIT support]),
@@ -726,6 +759,7 @@ AC_MSG_RESULT([
         SELinux:                 ${have_selinux}
         XZ:                      ${have_xz}
         ACL:                     ${have_acl}
+        GCRYPT:                  ${have_gcrypt}
         binfmt:                  ${have_binfmt}
         vconsole:                ${have_vconsole}
         readahead:               ${have_readahead}