ax_lib_oracle_oci

This macro provides tests of availability of Oracle OCI API of particular version or newer. This macros checks for Oracle OCI headers and libraries and defines compilation flags

Macro supports following options and their values:

1) Single-option usage: --with-oracle - path to ORACLE_HOME directory

2) Two-options usage (both options are required): --with-oracle-include - path to directory with OCI headers --with-oracle-lib - path to directory with OCI libraries

This macro calls:

  AC_SUBST(ORACLE_OCI_CFLAGS)
  AC_SUBST(ORACLE_OCI_LDFLAGS)
  AC_SUBST(ORACLE_OCI_VERSION)

And sets:

  HAVE_ORACLE

AC_DEFUN([AX_LIB_ORACLE_OCI],
[
    AC_ARG_WITH([oracle],
        AC_HELP_STRING([--with-oracle=@<:@DIR@:>@],
            [use Oracle OCI API from given path to Oracle home directory]
        ),
        [oracle_home_dir="$withval"],
        [oracle_home_dir=""]
    )

    AC_ARG_WITH([oracle-include],
        AC_HELP_STRING([--with-oracle-include=@<:@DIR@:>@],
            [use Oracle OCI API headers from given path]
        ),
        [oracle_home_include_dir="$withval"],
        [oracle_home_include_dir=""]
    )
    AC_ARG_WITH([oracle-lib],
        AC_HELP_STRING([--with-oracle-lib=@<:@DIR@:>@],
            [use Oracle OCI API libraries from given path]
        ),
        [oracle_home_lib_dir="$withval"],
        [oracle_home_lib_dir=""]
    )

    ORACLE_OCI_CFLAGS=""
    ORACLE_OCI_LDFLAGS=""
    ORACLE_OCI_VERSION=""

    dnl
    dnl Collect include/lib paths
    dnl
    want_oracle_but_no_path="no"

    if test -n "$oracle_home_dir"; then

        if test "$oracle_home_dir" != "no" -a "$oracle_home_dir" != "yes"; then
            dnl ORACLE_HOME path provided
            oracle_include_dir="$oracle_home_dir/rdbms/public"
            oracle_lib_dir="$oracle_home_dir/lib"
        elif test "$oracle_home_dir" = "yes"; then
            want_oracle_but_no_path="yes"
        fi

    elif test -n "$oracle_home_include_dir" -o -n "$oracle_home_lib_dir"; then

        if test "$oracle_home_include_dir" != "no" -a "$oracle_home_include_dir" != "yes"; then
            oracle_include_dir="$oracle_home_include_dir"
        elif test "$oracle_home_include_dir" = "yes"; then
            want_oracle_but_no_path="yes"
        fi

        if test "$oracle_home_lib_dir" != "no" -a "$oracle_home_lib_dir" != "yes"; then
            oracle_lib_dir="$oracle_home_lib_dir"
        elif test "$oracle_home_lib_dir" = "yes"; then
            want_oracle_but_no_path="yes"
        fi
    fi

    if test "$want_oracle_but_no_path" = "yes"; then
        AC_MSG_WARN([Oracle support is requested but no Oracle paths have been provided. \
Please, locate Oracle directories using --with-oracle or \
--with-oracle-include and --with-oracle-lib options.])
    fi

    dnl
    dnl Check OCI files
    dnl
    if test -n "$oracle_include_dir" -a -n "$oracle_lib_dir"; then

        saved_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS -I$oracle_include_dir"

        saved_LDFLAGS="$LDFLAGS"
        oci_ldflags="-L$oracle_lib_dir -lclntsh -lnnz10"
        LDFLAGS="$LDFLAGS $oci_ldflags"

        dnl
        dnl Check OCI headers
        dnl
        AC_MSG_CHECKING([for Oracle OCI headers in $oracle_include_dir])

        AC_LANG_PUSH(C++)
        AC_COMPILE_IFELSE([
            AC_LANG_PROGRAM([[@%:@include <oci.h>]],
                [[
#if defined(OCI_MAJOR_VERSION) && defined(OCI_MINOR_VERSION)
// Everything is okay
#else
#  error Oracle oci.h header not found
#endif
                ]]
            )],
            [
            ORACLE_OCI_CFLAGS="-I$oracle_include_dir"
            oci_header_found="yes"
            AC_MSG_RESULT([yes])
            ],
            [
            oci_header_found="no"
            AC_MSG_RESULT([not found])
            ]
        )
        AC_LANG_POP([C++])

        dnl
        dnl Check OCI libraries
        dnl
        if test "$oci_header_found" = "yes"; then

            AC_MSG_CHECKING([for Oracle OCI libraries in $oracle_lib_dir])

            AC_LANG_PUSH(C++)
            AC_LINK_IFELSE([
                AC_LANG_PROGRAM([[@%:@include <oci.h>]],
                    [[
OCIEnv* envh = 0;
OCIEnvCreate(&envh, OCI_DEFAULT, 0, 0, 0, 0, 0, 0);
if (envh) OCIHandleFree(envh, OCI_HTYPE_ENV);
                    ]]
                )],
                [
                ORACLE_OCI_LDFLAGS="$oci_ldflags"
                oci_lib_found="yes"
                AC_MSG_RESULT([yes])
                ],
                [
                oci_lib_found="no"
                AC_MSG_RESULT([not found])
                ]
            )
            AC_LANG_POP([C++])
        fi

        CPPFLAGS="$saved_CPPFLAGS"
        LDFLAGS="$saved_LDFLAGS"
    fi

    dnl
    dnl Check required version of Oracle is available
    dnl

    oracle_version_req=ifelse([$1], [], [], [$1])

    if test "$oci_header_found" = "yes" -a \
            "$oci_lib_found" = "yes" -a \
            -n "$oracle_version_req"; then

        AC_MSG_CHECKING([if Oracle OCI version is >= $oracle_version_req])

        dnl Decompose required version string of Oracle
        dnl and calculate its number representation
        oracle_version_req_major=`expr $oracle_version_req : '\([[0-9]]*\)'`
        oracle_version_req_minor=`expr $oracle_version_req : '[[0-9]]*\.\([[0-9]]*\)'`

        oracle_version_req_number=`expr $oracle_version_req_major \* 1000000 \
                                   \+ $oracle_version_req_minor \* 1000`

        dnl Decompose version string of installed Oracle
        dnl and calculate its number representation
        oracle_version_major=`cat $oracle_include_dir/oci.h \
                             | grep '#define.*OCI_MAJOR_VERSION.*' \
                             | sed -e 's/#define OCI_MAJOR_VERSION  *//' \
                             | sed -e 's/  *\/\*.*\*\///'`

        oracle_version_minor=`cat $oracle_include_dir/oci.h \
                             | grep '#define.*OCI_MINOR_VERSION.*' \
                             | sed -e 's/#define OCI_MINOR_VERSION  *//' \
                             | sed -e 's/  *\/\*.*\*\///'`

        oracle_version_number=`expr $oracle_version_major \* 1000000 \
                              \+ $oracle_version_minor \* 1000`

        oracle_version_check=`expr $oracle_version_number \>\= $oracle_version_req_number`
        if test "$oracle_version_check" = "1"; then
            AC_MSG_RESULT([yes])
        else
            AC_MSG_RESULT([no])
        fi

        ORACLE_OCI_VERSION="$oracle_version_major.$oracle_version_minor"
    fi

    AC_SUBST([ORACLE_OCI_VERSION])
    AC_SUBST([ORACLE_OCI_CFLAGS])
    AC_SUBST([ORACLE_OCI_LDFLAGS])
])

Copyright © 2006 Mateusz Loskot <mateusz@loskot.net>

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.