dnl Process this file with autoconf to produce a configure script.

AC_INIT(mod_auth_mysql.c)

AC_CONFIG_HEADER(config.h)

dnl We want this one before the checks, so the checks can modify CFLAGS.
test -z "$CFLAGS" && auto_cflags=1

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CC_C_O
AC_PROG_RANLIB

dnl Ugly hack to get around a problem with gcc on AIX.
if test "$CC" = "gcc" -a "$ac_cv_prog_cc_g" = "yes" -a \
   "`uname -sv`" = "AIX 4"; then
	CFLAGS=`echo $CFLAGS | sed -e 's/-g//'`
fi

dnl Check for /usr/pkg/{lib,include} which is where NetBSD puts binary
dnl and source packages.  This should be harmless on other OSs.
dnl
if test -d /usr/pkg/include -a -d /usr/pkg/lib ; then
       CFLAGS="$CFLAGS -I/usr/pkg/include"
       LDFLAGS="$LDFLAGS -L/usr/pkg/lib"
fi

AC_CHECK_HEADERS(crypt.h)
AC_CHECK_FUNCS(crypt)

AC_CHECK_LIB(c, crypt, [:], [
 AC_CHECK_LIB(crypt, crypt, [
  LIBS="-lcrypt $LIBS"
  AC_DEFINE(HAVE_LIBCRYPT) ], []) ])

AC_CRYPT_CAP

AC_MSG_CHECKING(for Apache module support via DSO through APXS)
AC_ARG_WITH(apxs,
[  --with-apxs[=FILE]    Build shared Apache module.  FILE is the optional
                        pathname to the Apache apxs tool; defaults to "apxs".
                        (This option needs Perl installed)],
[
    if test "$withval" = "yes"; then
        withval=apxs
    fi
    APXS_ON=1
    APXS="$withval"
    APXS_LDFLAGS="@MYSQL_LFLAGS@ @MYSQL_LIBS@"
    APACHE_INCLUDE="-I`$APXS -q INCLUDEDIR`"
    INSTALL_IT="\$(APXS) -i -a -n auth_mysql libauth_mysql.so"
    CFLAGS_SHLIB=`perl -V:cccdlflags | cut -d\' -f2`
    LDFLAGS_SHLIB=`perl -V:lddlflags | cut -d\' -f2`
    LDFLAGS_SHLIB_EXPORT=`perl -V:ccdlflags | cut -d\' -f2`
    STRONGHOLD=
    AC_SUBST(APXS)
    AC_SUBST(APXS_LDFLAGS)
    AC_SUBST(INSTALL_IT)
	AC_DEFINE(HAVE_AP_COMPAT_H)
    AC_MSG_RESULT(yes)
],[
    AC_MSG_RESULT(no)
])

AC_MSG_CHECKING(for Apache module support via DSO through APACI)
AC_ARG_WITH(shared-apache,
[  --with-shared-apache[=DIR] Build shared Apache module.  DIR is the top-level 
                             Apache build directory, defaults to /usr/local/etc/httpd.
                             (This option needs Perl installed)],
[
	if test "$withval" = "yes"; then
	  # Apache's default directory
	  withval=/usr/local/etc/httpd
	fi
	DSO_APACI_ON=1
	if test "$withval" != "no"; then
	  if test -f $withval/src/include/httpd.h; then
	    APACHE_INCLUDE="-I$withval/src/include -I$withval/src/os/unix"
	    APACHE_TARGET=$withval/src/modules/auth_mysql
		if test ! -d $APACHE_TARGET; then
			mkdir $APACHE_TARGET
		fi
		CFLAGS_SHLIB=`perl -V:cccdlflags | cut -d\' -f2`
		LDFLAGS_SHLIB=`perl -V:lddlflags | cut -d\' -f2`
		LDFLAGS_SHLIB_EXPORT=`perl -V:ccdlflags | cut -d\' -f2`
	    INSTALL_IT="mkdir -p $APACHE_TARGET; cp mod_auth_mysql.* *.module $APACHE_TARGET; cp config.h $APACHE_TARGET/auth_mysql_config.h; cp apMakefile.tmpl $APACHE_TARGET/Makefile.tmpl; cp apMakefile.libdir $APACHE_TARGET/Makefile.libdir"
	    AC_MSG_RESULT(yes - Shared Apache 1.3.x)
		STRONGHOLD=
		if test -f $withval/src/include/ap_compat.h; then
			AC_DEFINE(HAVE_AP_COMPAT_H)
		else
		if test -f $withval/src/include/compat.h; then
			AC_DEFINE(HAVE_OLD_COMPAT_H)
		fi
		fi
      else
	    AC_MSG_RESULT(no)
	    AC_MSG_ERROR(Invalid Apache directory - unable to find httpd.h under $withval/src/include)
	  fi
	fi
	AC_SUBST(APACHE_INCLUDE)
	AC_SUBST(APACHE_TARGET)
	AC_SUBST(INSTALL_IT)
],[
	AC_MSG_RESULT(no)
])

if test "$APACI_DSO_ON" != "1"; then
if test "$APXS_ON" != "1"; then
AC_MSG_CHECKING(for Apache directory)
AC_ARG_WITH(apache,
[  --with-apache=DIR     Specify Apache directory.  DIR is the top-level Apache
                        build directory, defaults to /usr/local/etc/httpd.],
[
	APACHE_BASE_DIR=$withval
	AC_MSG_RESULT($APACHE_BASE_DIR)
],[
	APACHE_BASE_DIR=/usr/local/etc/httpd
	AC_MSG_RESULT($APACHE_BASE_DIR)
])

# For Apache 1.2.x
if test -f $APACHE_BASE_DIR/src/httpd.h; then 
	APACHE_INCLUDE=-I$APACHE_BASE_DIR/src
	APACHE_TARGET=$APACHE_BASE_DIR/src
	INSTALL_IT="mkdir -p $APACHE_TARGET; cp mod_auth_mysql.* *.module $APACHE_TARGET; cp config.h $APACHE_TARGET/auth_mysql_config.h"
	AC_MSG_RESULT(Detected Apache 1.2.x)
	STRONGHOLD=
	APACHE_VERSION=1.2
# For Apache 1.3.x
elif test -f $APACHE_BASE_DIR/src/main/httpd.h; then
	APACHE_INCLUDE="-I$APACHE_BASE_DIR/src/main -I$APACHE_BASE_DIR/src/os/unix -I$APACHE_BASE_DIR/src/ap"
	APACHE_TARGET=$APACHE_BASE_DIR/src/modules/auth_mysql
	if test ! -d $APACHE_TARGET; then
		mkdir $APACHE_TARGET
	fi
	INSTALL_IT="mkdir -p $APACHE_TARGET; cp mod_auth_mysql.* *.module $APACHE_TARGET; cp config.h $APACHE_TARGET/auth_mysql_config.h; cp apMakefile.tmpl $APACHE_TARGET/Makefile.tmpl; cp apMakefile.libdir $APACHE_TARGET/Makefile.libdir"
	AC_MSG_RESULT(Detected Apache 1.3.x)
	APACHE_VERSION=1.3
	STRONGHOLD=
	if test -f $APACHE_BASE_DIR/src/include/ap_compat.h; then
		AC_DEFINE(HAVE_AP_COMPAT_H)
	else
		if test -f $APACHE_BASE_DIR/src/include/compat.h; then
			AC_DEFINE(HAVE_OLD_COMPAT_H)
		fi
	fi
# Also for Apache 1.3.x
elif test -f $APACHE_BASE_DIR/src/include/httpd.h; then
	APACHE_INCLUDE="-I$APACHE_BASE_DIR/src/include -I$APACHE_BASE_DIR/src/os/unix"
	APACHE_TARGET=$APACHE_BASE_DIR/src/modules/auth_mysql
	if test ! -d $APACHE_TARGET; then
		mkdir $APACHE_TARGET
	fi
	INSTALL_IT="mkdir -p $APACHE_TARGET; cp mod_auth_mysql.* $APACHE_TARGET; cp apMakefile.tmpl $APACHE_TARGET/Makefile.tmpl; cp config.h $APACHE_TARGET/auth_mysql_config.h; cp apMakefile.libdir $APACHE_TARGET/Makefile.libdir; cp *.module $APACHE_TARGET"
	AC_MSG_RESULT(Detected Apache 1.3.x)
	APACHE_VERSION=1.3
	STRONGHOLD=
	if test -f $APACHE_BASE_DIR/src/include/ap_compat.h; then
		AC_DEFINE(HAVE_AP_COMPAT_H)
	else
		if test -f $APACHE_BASE_DIR/src/include/compat.h; then
			AC_DEFINE(HAVE_OLD_COMPAT_H)
		fi
	fi
# For StrongHold 2.2
elif test -f $APACHE_BASE_DIR/apache/httpd.h; then
	APACHE_INCLUDE=-"I$APACHE_BASE_DIR/apache -I$APACHE_BASE_DIR/ssl/include"
	APACHE_TARGET=$APACHE_BASE_DIR/apache
	INSTALL_IT="mkdir -p $APACHE_TARGET; cp mod_auth_mysql.* *.module $APACHE_TARGET; cp config.h $APACHE_TARGET/auth_mysql_config.h"
	STRONGHOLD=-DSTRONGHOLD=1
	AC_MSG_RESULT(Detected StrongHold)
	APACHE_VERSION=1.2
	if test -f $APACHE_BASE_DIR/src/ap_compat.h; then
		AC_DEFINE(HAVE_AP_COMPAT_H)
		APACHE_VERSION=1.3
	else
		if test -f $APACHE_BASE_DIR/src/compat.h; then
			AC_DEFINE(HAVE_OLD_COMPAT_H)
			APACHE_VERSION=1.3
		fi
	fi
else
	AC_MSG_ERROR(Invalid Apache directory - unable to find httpd.h under $APACHE_BASE_DIR)
fi

AC_SUBST(APACHE_INCLUDE)
AC_SUBST(APACHE_TARGET)
AC_SUBST(INSTALL_IT)
AC_SUBST(STRONGHOLD)
fi
fi

AC_MSG_CHECKING(for MySQL directory)
AC_ARG_WITH(mysql,
[  --with-mysql=DIR      Specify the MySQL installation directory.  Default:  /usr/local],
[
	MYSQL_BASE_DIR=$withval
	AC_MSG_RESULT($withval)
],[
	MYSQL_BASE_DIR=/usr/local
	AC_MSG_RESULT(/usr/local)
])
if test -f $MYSQL_BASE_DIR/include/mysql/mysql.h; then
	MYSQL_INCDIR=$MYSQL_BASE_DIR/include/mysql
	MYSQL_LIBDIR=$MYSQL_BASE_DIR/lib/mysql
elif test -f $MYSQL_BASE_DIR/include/mysql.h; then
	MYSQL_INCDIR=$MYSQL_BASE_DIR/include
	MYSQL_LIBDIR=$MYSQL_BASE_DIR/lib
else
	AC_MSG_ERROR(Invalid MySQL directory - unable to find mysql.h under $MYSQL_BASE_DIR)
fi
MYSQL_INCLUDE=-I$MYSQL_INCDIR
MYSQL_LFLAGS=-L$MYSQL_LIBDIR
MYSQL_LIBS=-lmysqlclient
AC_SUBST(MYSQL_LIBS)
AC_SUBST(MYSQL_LFLAGS)
AC_SUBST(MYSQL_INCLUDE)

dnl If we're using gcc and the user hasn't specified CFLAGS, add -O2.
test -n "$auto_cflags" && test -n "$GCC" && CFLAGS="$CFLAGS -O2"

dnl If we're using cc on HP-UX, add the -Ae to CFLAGS
if test -n "$auto_cflags" && test "`uname -s 2>/dev/null`" = "HP-UX"; then
   test -n "$GCC" || CFLAGS="-Ae $CFLAGS"
fi

dnl *** Commented out - generates slow code and consumes a lot of 
dnl *** resources during compilation - we need to figure out how
dnl *** to supply it only when absolutely necessary
dnl If we're using gcc add -fpic to make dl() work on some platforms
dnl test -n "$GCC" && CFLAGS="$CFLAGS -fpic"

AC_SUBST(CFLAGS)
AC_SUBST(CFLAGS_SHLIB)
AC_SUBST(LDFLAGS_SHLIB)
AC_SUBST(LDFLAGS_SHLIB_EXPORT)

if test "$APACHE_VERSION" = "1.2"; then
cat > .install_notes <<EOF

+------------------------------------------------------------------+
| In order to proceed, please edit the Apache Configuration file:  |
|                                                                  |
| 1.  Add '$MYSQL_LIBS' to the EXTRA_LIBS= line
| 2.  Add '$MYSQL_LFLAGS' to the EXTRA_LFLAGS= line
| 3.  Add '$MYSQL_INCLUDE' to the EXTRA_CFLAGS= line
| 4.  At the bottom of the file, add the line:                     |
|                                                                  |
| Module auth_mysql_module mod_auth_mysql.o                        |
|                                                                  |
| To recompile Apache and enable the new module, run the Apache    |
| Configure script and then make.                                  |
+------------------------------------------------------------------+
EOF

elif test "$APACHE_VERSION" = "1.3"; then
cat > .install_notes <<EOF
+------------------------------------------------------------------+
| In order to proceed, please run the Apache configure script, and |
| add the following option:                                        |
| --activate-module=src/modules/auth_mysql/libauth_mysql.a         |
|                                                                  |
| and run make.                                                    |
+------------------------------------------------------------------+
EOF
fi

cat >> .install_notes <<EOF
| If you are upgrading from an earlier version of mod_auth_mysql,  |
| you would have to update your .htaccess files to reflect the     |
| changes in the directive names.  You can do that automatically   |
| by running the bundled update_htaccess_files.sh script.          |
+------------------------------------------------------------------+
| Please register this module at                                   |
| http://bourbon.netvision.net.il/mod_auth_mysql/                  |
|                                                                  |
| Thanks for using mod_auth_mysql!                                 |
+------------------------------------------------------------------+

EOF


AC_SUBST(INSTALL_NOTES)

AC_OUTPUT(Makefile libauth_mysql.module, [], [])

echo ""
echo "Please run 'make'"

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