+AC_CACHE_CHECK(for db libraries, cf_cv_hashed_db_libs,[
+cf_cv_hashed_db_libs=unknown
+for cf_db_libs in db$cf_cv_hashed_db_version db ''
+do
+ cf_save_libs="$LIBS"
+ if test -n "$cf_db_libs"; then
+ LIBS="-l$cf_db_libs $LIBS"
+ fi
+ CF_MSG_LOG(checking for library "$cf_db_libs")
+ AC_TRY_LINK([
+$ac_includes_default
+#include <db.h>
+],[
+ char *path = "/tmp/foo";
+#ifdef DB_VERSION_MAJOR
+#if DB_VERSION_MAJOR >= 4
+ DB *result = 0;
+ db_create(&result, NULL, 0);
+ result->open(result,
+ NULL,
+ path,
+ path,
+ DB_HASH,
+ DB_CREATE,
+ 0644);
+#elif DB_VERSION_MAJOR >= 3
+ DB *result = 0;
+ db_create(&result, NULL, 0);
+ result->open(result,
+ path,
+ path,
+ DB_HASH,
+ DB_CREATE,
+ 0644);
+#elif DB_VERSION_MAJOR >= 2
+ DB *result = 0;
+ db_open(path,
+ DB_HASH,
+ DB_CREATE,
+ 0644,
+ (DB_ENV *) 0,
+ (DB_INFO *) 0,
+ &result);
+#endif /* DB_VERSION_MAJOR */
+#else
+ DB *result = dbopen(path,
+ 2,
+ 0644,
+ DB_HASH,
+ 0);
+#endif
+ ${cf_cv_main_return:-return}(result != 0)
+],[
+ if test -n "$cf_db_libs" ; then
+ cf_cv_hashed_db_libs=$cf_db_libs
+ else
+ cf_cv_hashed_db_libs=default
+ fi
+ LIBS="$cf_save_libs"
+ break
+])
+ LIBS="$cf_save_libs"
+done
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_HASHED_DB_VERSION version: 2 updated: 2006/08/19 15:12:49
+dnl --------------------
+dnl Given that we have the header file for hashed database, find the version
+dnl information.
+AC_DEFUN([CF_HASHED_DB_VERSION],
+[
+AC_CACHE_CHECK(for version of db, cf_cv_hashed_db_version,[
+cf_cv_hashed_db_version=unknown
+
+for cf_db_version in 1 2 3 4
+do
+ CF_MSG_LOG(checking for db version $cf_db_version)
+ AC_TRY_COMPILE([
+$ac_includes_default
+#include <db.h>
+
+#ifdef DB_VERSION_MAJOR
+ /* db2 (DB_VERSION_MAJOR=2) has also DB_VERSION_MINOR, tested with 7 */
+#if $cf_db_version == DB_VERSION_MAJOR
+ /* ok */
+#else
+ make an error
+#endif
+#else
+#if $cf_db_version == 1
+ /* ok: assuming this is DB 1.8.5 */
+#else
+ make an error
+#endif
+#endif
+],[DBT *foo = 0],[
+ cf_cv_hashed_db_version=$cf_db_version
+ break
+ ])
+done
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_HELP_MESSAGE version: 3 updated: 1998/01/14 10:56:23
+dnl ---------------
+dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
+AC_DEFUN([CF_HELP_MESSAGE],
+[AC_DIVERT_HELP([$1])dnl
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INCLUDE_DIRS version: 5 updated: 2006/10/14 15:23:15
+dnl ---------------
+dnl Construct the list of include-options according to whether we're building
+dnl in the source directory or using '--srcdir=DIR' option. If we're building
+dnl with gcc, don't append the includedir if it happens to be /usr/include,
+dnl since that usually breaks gcc's shadow-includes.
+AC_DEFUN([CF_INCLUDE_DIRS],
+[
+CPPFLAGS="-I. -I../include $CPPFLAGS"
+if test "$srcdir" != "."; then
+ CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
+fi
+if test "$GCC" != yes; then
+ CPPFLAGS="$CPPFLAGS -I\${includedir}"
+elif test "$includedir" != "/usr/include"; then
+ if test "$includedir" = '${prefix}/include' ; then
+ if test $prefix != /usr ; then
+ CPPFLAGS="$CPPFLAGS -I\${includedir}"
+ fi
+ else
+ CPPFLAGS="$CPPFLAGS -I\${includedir}"
+ fi
+fi
+AC_SUBST(CPPFLAGS)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INTEL_COMPILER version: 3 updated: 2005/08/06 18:37:29
+dnl -----------------
+dnl Check if the given compiler is really the Intel compiler for Linux. It
+dnl tries to imitate gcc, but does not return an error when it finds a mismatch
+dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
+dnl
+dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
+dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
+dnl the wrappers for gcc and g++ warnings.
+dnl
+dnl $1 = GCC (default) or GXX
+dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
+dnl $3 = CFLAGS (default) or CXXFLAGS
+AC_DEFUN([CF_INTEL_COMPILER],[
+ifelse($2,,INTEL_COMPILER,[$2])=no
+
+if test "$ifelse($1,,[$1],GCC)" = yes ; then
+ case $host_os in
+ linux*|gnu*)
+ AC_MSG_CHECKING(if this is really Intel ifelse($1,GXX,C++,C) compiler)
+ cf_save_CFLAGS="$ifelse($3,,CFLAGS,[$3])"
+ ifelse($3,,CFLAGS,[$3])="$ifelse($3,,CFLAGS,[$3]) -no-gcc"
+ AC_TRY_COMPILE([],[
+#ifdef __INTEL_COMPILER
+#else
+make an error
+#endif
+],[ifelse($2,,INTEL_COMPILER,[$2])=yes
+cf_save_CFLAGS="$cf_save_CFLAGS -we147 -no-gcc"
+],[])
+ ifelse($3,,CFLAGS,[$3])="$cf_save_CFLAGS"
+ AC_MSG_RESULT($ifelse($2,,INTEL_COMPILER,[$2]))
+ ;;
+ esac
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ISASCII version: 3 updated: 2000/08/12 23:18:52
+dnl ----------
+dnl Check if we have either a function or macro for 'isascii()'.
+AC_DEFUN([CF_ISASCII],
+[
+AC_MSG_CHECKING(for isascii)
+AC_CACHE_VAL(cf_cv_have_isascii,[
+ AC_TRY_LINK([#include <ctype.h>],[int x = isascii(' ')],
+ [cf_cv_have_isascii=yes],
+ [cf_cv_have_isascii=no])
+])dnl
+AC_MSG_RESULT($cf_cv_have_isascii)
+test "$cf_cv_have_isascii" = yes && AC_DEFINE(HAVE_ISASCII)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_LARGEFILE version: 7 updated: 2007/06/02 11:58:50
+dnl ------------
+dnl Add checks for large file support.
+AC_DEFUN([CF_LARGEFILE],[
+ifdef([AC_FUNC_FSEEKO],[
+ AC_SYS_LARGEFILE
+ if test "$enable_largefile" != no ; then
+ AC_FUNC_FSEEKO
+
+ # Normally we would collect these definitions in the config.h,
+ # but (like _XOPEN_SOURCE), some environments rely on having these
+ # defined before any of the system headers are included. Another
+ # case comes up with C++, e.g., on AIX the compiler compiles the
+ # header files by themselves before looking at the body files it is
+ # told to compile. For ncurses, those header files do not include
+ # the config.h
+ test "$ac_cv_sys_large_files" != no && CPPFLAGS="$CPPFLAGS -D_LARGE_FILES "
+ test "$ac_cv_sys_largefile_source" != no && CPPFLAGS="$CPPFLAGS -D_LARGEFILE_SOURCE "
+ test "$ac_cv_sys_file_offset_bits" != no && CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits "
+
+ AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
+ AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <dirent.h>
+ ],[
+ /* if transitional largefile support is setup, this is true */
+ extern struct dirent64 * readdir(DIR *);
+ struct dirent64 *x = readdir((DIR *)0);
+ struct dirent *y = readdir((DIR *)0);
+ int z = x - y;
+ ],
+ [cf_cv_struct_dirent64=yes],
+ [cf_cv_struct_dirent64=no])
+ ])
+ test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64)
+ fi
+])
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_LDFLAGS_STATIC version: 2 updated: 2007/04/28 15:25:27
+dnl -----------------
+dnl Check for compiler/linker flags used to temporarily force usage of static
+dnl libraries. This depends on the compiler and platform. Use this to help
+dnl ensure that the linker picks up a given library based on its position in
+dnl the list of linker options and libraries.
+AC_DEFUN([CF_LDFLAGS_STATIC],[
+
+if test "$GCC" = yes ; then
+ LDFLAGS_STATIC=-static
+ LDFLAGS_SHARED=-dynamic
+else
+ case $cf_cv_system_name in #(
+ aix[[45]]*) #( from ld manpage
+ LDFLAGS_STATIC=-bstatic
+ LDFLAGS_SHARED=-bdynamic
+ ;;
+ hpux*) #( from ld manpage for hpux10.20, hpux11.11
+ # We could also use just "archive" and "shared".
+ LDFLAGS_STATIC=-Wl,-a,archive_shared
+ LDFLAGS_SHARED=-Wl,-a,shared_archive
+ ;;
+ irix*) #( from ld manpage IRIX64
+ LDFLAGS_STATIC=-Bstatic
+ LDFLAGS_SHARED=-Bdynamic
+ ;;
+ osf[[45]]*) #( from ld manpage osf4.0d, osf5.1
+ # alternative "-oldstyle_liblookup" (not in cc manpage)
+ LDFLAGS_STATIC=-noso
+ LDFLAGS_SHARED=-so_archive
+ ;;
+ solaris2*)
+ LDFLAGS_STATIC=-Bstatic
+ LDFLAGS_SHARED=-Bdynamic
+ ;;
+ esac
+fi
+
+AC_SUBST(LDFLAGS_STATIC)
+AC_SUBST(LDFLAGS_SHARED)
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_LIBUTF8 version: 2 updated: 2002/01/19 22:51:32
+dnl ----------
+dnl Check for libutf8
+AC_DEFUN([CF_LIBUTF8],
+[
+AC_CACHE_CHECK(for putwc in libutf8,cf_cv_libutf8,[
+ cf_save_LIBS="$LIBS"
+ LIBS="-lutf8 $LIBS"
+AC_TRY_LINK([
+#include <libutf8.h>],[putwc(0,0);],
+ [cf_cv_libutf8=yes],
+ [cf_cv_libutf8=no])
+ LIBS="$cf_save_LIBS"
+])