Use thread aware library for complex regex searches

For more details, see the design doc at http://directory.fedoraproject.org/wiki/Thread_Aware_Regex

Additional 2 unrelated changes are being made:
1) dbgen.pl.in: secretary and manager are having a dn format value "cn=...".
2) slapi_counter_sunos_sparcv9.S: adding "#define _ASM 1" to force to set an assembler code macro _ASM.

1 files changed, 87 insertions, 0 deletions

diff --git a/m4/pcre.m4 b/m4/pcre.m4
new file mode 100644
index 00000000..f60123e2
--- /dev/null
+++ b/m4/pcre.m4
@@ -0,0 +1,87 @@
+# BEGIN COPYRIGHT BLOCK
+# Copyright (C) 2007 Red Hat, Inc.
+# All rights reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# END COPYRIGHT BLOCK
+
+AC_CHECKING(for pcre)
+
+dnl  - check for --with-pcre
+AC_MSG_CHECKING(for --with-pcre)
+AC_ARG_WITH(pcre, [  --with-pcre=PATH   Perl Compatible Regular Expression directory],
+[
+  if test "$withval" = "yes"; then
+    AC_MSG_RESULT(yes)
+    dnl - check in system locations
+    if test -f "/usr/include/pcre.h"; then
+      pcre_incdir="/usr/include"
+      pcre_inc="-I/usr/include"
+      pcre_lib='-L$(libdir)'
+      pcre_libdir='$(libdir)'
+    else
+      AC_MSG_ERROR([pcre.h not found])
+    fi
+  elif test -d "$withval"/include -a -d "$withval"/lib; then
+    AC_MSG_RESULT([using $withval])
+    dnl - check the user provided location
+    PCREDIR=$withval
+    pcre_lib="-L$PCREDIR/lib"
+    pcre_libdir="$PCREDIR/lib"
+    pcre_incdir="$PCREDIR/include"
+    if ! test -e "$pcre_incdir/pcre.h" ; then
+      AC_MSG_ERROR([$withval include dir not found])
+    fi
+    pcre_inc="-I$pcre_incdir"
+  else
+    echo
+    AC_MSG_ERROR([$withval not found])
+  fi
+],
+AC_MSG_RESULT(no))
+
+dnl - check in system locations
+if test -z "$pcre_inc"; then
+  AC_MSG_CHECKING(for pcre.h)
+  if test -f "/usr/include/pcre.h"; then
+    AC_MSG_RESULT([using /usr/include/pcre.h])
+    pcre_incdir="/usr/include"
+    pcre_inc="-I/usr/include"
+    pcre_lib='-L$(libdir)'
+    pcre_libdir='$(libdir)'
+  else
+    AC_MSG_RESULT(no)
+    AC_MSG_ERROR([pcre not found, specify with --with-pcre.])
+  fi
+fi
+#
+# if PCRE is not found yet, try pkg-config
+
+# last resort
+if test -z "$pcre_inc" -o -z "$pcre_lib" -o -z "$pcre_libdir"; then
+  AC_PATH_PROG(PKG_CONFIG, pkg-config)
+  AC_MSG_CHECKING(for pcre with pkg-config)
+  if test -n "$PKG_CONFIG"; then
+    if $PKG_CONFIG --exists pcre; then
+      pcre_inc=`$PKG_CONFIG --cflags-only-I pcre`
+      pcre_lib=`$PKG_CONFIG --libs-only-L pcre`
+      pcre_libdir=`$PKG_CONFIG --libs-only-L pcre | sed -e s/-L// | sed -e s/\ .*$//`
+      AC_MSG_RESULT([using system PCRE])
+    else
+      AC_MSG_ERROR([PCRE not found, specify with --with-pcre.])
+    fi
+  fi
+fi