+dnl APACHE_HELP_STRING(LHS, RHS)
+dnl Autoconf 2.50 can not handle substr correctly. It does have
+dnl AC_HELP_STRING, so let's try to call it if we can.
+dnl Note: this define must be on one line so that it can be properly returned
+dnl as the help string.
+AC_DEFUN(APACHE_HELP_STRING,[ifelse(regexp(AC_ACVERSION, 2\.1), -1, AC_HELP_STRING($1,$2),[ ]$1 substr([ ],len($1))$2)])dnl
+
dnl APACHE_SUBST(VARIABLE)
dnl Makes VARIABLE available in generated files
dnl (do not use @variable@ in Makefiles, but $(variable))
APACHE_FAST_OUTPUT_FILES="$APACHE_FAST_OUTPUT_FILES $1"
])
-dnl APACHE_MKDIR_P_CHECK
-dnl checks whether mkdir -p works
-AC_DEFUN(APACHE_MKDIR_P_CHECK,[
- AC_CACHE_CHECK(for working mkdir -p, ac_cv_mkdir_p,[
- test -d conftestdir && rm -rf conftestdir
- mkdir -p conftestdir/somedir >/dev/null 2>&1
- if test -d conftestdir/somedir; then
- ac_cv_mkdir_p=yes
- else
- ac_cv_mkdir_p=no
- fi
- rm -rf conftestdir
- ])
-])
-
dnl APACHE_GEN_CONFIG_VARS
dnl Creates config_vars.mk
AC_DEFUN(APACHE_GEN_CONFIG_VARS,[
APACHE_SUBST(exec_prefix)
APACHE_SUBST(datadir)
APACHE_SUBST(localstatedir)
+ APACHE_SUBST(mandir)
+ APACHE_SUBST(libdir)
APACHE_SUBST(libexecdir)
APACHE_SUBST(htdocsdir)
+ APACHE_SUBST(manualdir)
APACHE_SUBST(includedir)
+ APACHE_SUBST(errordir)
APACHE_SUBST(iconsdir)
APACHE_SUBST(sysconfdir)
+ APACHE_SUBST(installbuilddir)
+ APACHE_SUBST(runtimedir)
+ APACHE_SUBST(proxycachedir)
APACHE_SUBST(other_targets)
APACHE_SUBST(progname)
APACHE_SUBST(prefix)
APACHE_SUBST(AWK)
APACHE_SUBST(CC)
+ APACHE_SUBST(CPP)
APACHE_SUBST(CXX)
APACHE_SUBST(CPPFLAGS)
APACHE_SUBST(CFLAGS)
APACHE_SUBST(CXXFLAGS)
APACHE_SUBST(LTFLAGS)
APACHE_SUBST(LDFLAGS)
+ APACHE_SUBST(LT_LDFLAGS)
APACHE_SUBST(SH_LDFLAGS)
APACHE_SUBST(HTTPD_LDFLAGS)
+ APACHE_SUBST(UTIL_LDFLAGS)
APACHE_SUBST(LIBS)
APACHE_SUBST(DEFS)
APACHE_SUBST(INCLUDES)
APACHE_SUBST(EXTRA_INCLUDES)
APACHE_SUBST(LIBTOOL)
APACHE_SUBST(SHELL)
+ APACHE_SUBST(RSYNC)
APACHE_SUBST(MODULE_DIRS)
+ APACHE_SUBST(MODULE_CLEANDIRS)
APACHE_SUBST(PORT)
+ APACHE_SUBST(SSLPORT)
+ APACHE_SUBST(nonssl_listen_stmt_1)
+ APACHE_SUBST(nonssl_listen_stmt_2)
APACHE_SUBST(CORE_IMPLIB_FILE)
APACHE_SUBST(CORE_IMPLIB)
+ APACHE_SUBST(SH_LIBS)
APACHE_SUBST(SH_LIBTOOL)
APACHE_SUBST(MK_IMPLIB)
+ APACHE_SUBST(MKDEP)
APACHE_SUBST(INSTALL_PROG_FLAGS)
+ APACHE_SUBST(DSO_MODULES)
+ APACHE_SUBST(APR_BINDIR)
+ APACHE_SUBST(APR_INCLUDEDIR)
+ APACHE_SUBST(APR_VERSION)
+ APACHE_SUBST(APR_CONFIG)
+ APACHE_SUBST(APU_BINDIR)
+ APACHE_SUBST(APU_INCLUDEDIR)
+ APACHE_SUBST(APU_VERSION)
+ APACHE_SUBST(APU_CONFIG)
abs_srcdir="`(cd $srcdir && pwd)`"
- APACHE_MKDIR_P_CHECK
echo creating config_vars.mk
- > config_vars.mk
+ test -d build || $mkdir_p build
+ > build/config_vars.mk
for i in $APACHE_VAR_SUBST; do
- eval echo "$i = \$$i" >> config_vars.mk
+ eval echo "$i = \$$i" >> build/config_vars.mk
done
])
$SHELL $srcdir/build/fastgen.sh $srcdir $ac_cv_mkdir_p $BSD_MAKEFILE $APACHE_FAST_OUTPUT_FILES
])
-AC_DEFUN(APACHE_LIBTOOL_SILENT,[
- LIBTOOL='$(SHELL) $(top_builddir)/libtool --silent'
-])
-
-
dnl ## APACHE_OUTPUT(file)
dnl ## adds "file" to the list of files generated by AC_OUTPUT
dnl ## This macro can be used several times.
echo "shared = $modpath_shared" >> $modpath_current/modules.mk
if test ! -z "$modpath_static" -o ! -z "$modpath_shared"; then
MODULE_DIRS="$MODULE_DIRS $current_dir"
+ else
+ MODULE_CLEANDIRS="$MODULE_CLEANDIRS $current_dir"
fi
APACHE_FAST_OUTPUT($modpath_current/Makefile)
])dnl
if test -z "$module_standalone"; then
if test -z "$2"; then
- libname="mod_$1.la"
+ # The filename of a convenience library must have a "lib" prefix:
+ libname="libmod_$1.la"
BUILTIN_LIBS="$BUILTIN_LIBS $modpath_current/$libname"
modpath_static="$modpath_static $libname"
cat >>$modpath_current/modules.mk<<EOF
$libname: $objects
- \$(MOD_LINK) $objects
+ \$(MOD_LINK) $objects $5
EOF
+ if test ! -z "$5"; then
+ APR_ADDTO(AP_LIBS, [$5])
+ fi
else
apache_need_shared=yes
libname="mod_$1.la"
dnl APACHE_MODULE(name, helptext[, objects[, structname[, default[, config]]]])
dnl
dnl default is one of:
-dnl yes -- enabled by default. user must explicitly disable.
-dnl no -- disabled under default, most, all. user must explicitly enable.
-dnl most -- disabled by default. enabled explicitly or with most or all.
-dnl "" -- disabled under default, most. enabled explicitly or with all.
+dnl yes -- enabled by default. user must explicitly disable.
+dnl no -- disabled under default, most, all. user must explicitly enable.
+dnl most -- disabled by default. enabled explicitly or with most or all.
+dnl static -- enabled as static by default, must be explicitly changed.
+dnl "" -- disabled under default, most. enabled explicitly or with all.
dnl
dnl basically: yes/no is a hard setting. "most" means follow the "most"
dnl setting. otherwise, fall under the "all" setting.
dnl
AC_DEFUN(APACHE_MODULE,[
AC_MSG_CHECKING(whether to enable mod_$1)
- define([optname],[ --]ifelse($5,yes,disable,enable)[-]translit($1,_,-))dnl
- AC_ARG_ENABLE(translit($1,_,-),optname() substr([ ],len(optname()))$2,,enable_$1=ifelse($5,,maybe-all,$5))
+ define([optname],[--]ifelse($5,yes,disable,enable)[-]translit($1,_,-))dnl
+ AC_ARG_ENABLE(translit($1,_,-),APACHE_HELP_STRING(optname(),$2),,enable_$1=ifelse($5,,maybe-all,$5))
undefine([optname])dnl
_apmod_extra_msg=""
- if test "$enable_$1" = "most"; then
+ dnl When --enable-modules=most is set and the module was not explicitly
+ dnl requested, allow a module to disable itself if its pre-reqs fail.
+ if test "$module_selection" = "most" -a "$enable_$1" = "most"; then
+ _apmod_error_fatal="no"
+ else
+ _apmod_error_fatal="yes"
+ fi
+ if test "$enable_$1" = "static"; then
+ enable_$1=yes
+ elif test "$enable_$1" = "yes"; then
+ enable_$1=$module_default
+ _apmod_extra_msg=" ($module_selection)"
+ elif test "$enable_$1" = "most"; then
if test "$module_selection" = "most" -o "$module_selection" = "all"; then
enable_$1=$module_default
_apmod_extra_msg=" ($module_selection)"
- else
+ elif test "$enable_$1" != "yes"; then
enable_$1=no
fi
elif test "$enable_$1" = "maybe-all"; then
enable_$1=no
fi
fi
+ if test "$enable_$1" != "no"; then
+ dnl If we plan to enable it, allow the module to run some autoconf magic
+ dnl that may disable it because of missing dependencies.
+ ifelse([$6],,:,[AC_MSG_RESULT([checking dependencies])
+ $6
+ AC_MSG_CHECKING(whether to enable mod_$1)
+ if test "$enable_$1" = "no"; then
+ if test "$_apmod_error_fatal" = "no"; then
+ _apmod_extra_msg=" (disabled)"
+ else
+ AC_MSG_ERROR([mod_$1 has been requested but can not be built due to prerequisite failures])
+ fi
+ fi])
+ fi
AC_MSG_RESULT($enable_$1$_apmod_extra_msg)
if test "$enable_$1" != "no"; then
case "$enable_$1" in
shared*)
- enable_$1=`echo $ac_n $enable_$1$ac_c|sed 's/shared,*//'`
+ enable_$1=`echo $enable_$1|sed 's/shared,*//'`
sharedobjs=yes
- shared=yes;;
+ shared=yes
+ DSO_MODULES="$DSO_MODULES $1"
+ ;;
*)
MODLIST="$MODLIST ifelse($4,,$1,$4)"
if test "$1" = "so"; then
fi
shared="";;
esac
- ifelse([$6],,:,[$6])
- APACHE_MODPATH_ADD($1, $shared, $3)
+ define([modprefix], [MOD_]translit($1, [a-z-], [A-Z_]))
+ APACHE_MODPATH_ADD($1, $shared, $3,, [\$(]modprefix[_LDADD)])
+ APACHE_SUBST(modprefix[_LDADD])
+ undefine([modprefix])
fi
])dnl
-dnl
-dnl APACHE_LAYOUT(configlayout, layoutname)
-AC_DEFUN(APACHE_LAYOUT,[
- if test ! -f $srcdir/config.layout; then
- echo "** Error: Layout file $srcdir/config.layout not found"
- echo "** Error: Cannot use undefined layout '$LAYOUT'"
- exit 1
- fi
- pldconf=./config.pld
- changequote({,})
- sed -e "1,/[ ]*<[lL]ayout[ ]*$2[ ]*>[ ]*/d" \
- -e '/[ ]*<\/Layout>[ ]*/,$d' \
- -e "s/^[ ]*//g" \
- -e "s/:[ ]*/=\'/g" \
- -e "s/[ ]*$/'/g" \
- $1 > $pldconf
- layout_name=$2
- . $pldconf
- rm $pldconf
- for var in prefix exec_prefix bindir sbindir libexecdir mandir \
- sysconfdir datadir iconsdir htdocsdir cgidir includedir \
- localstatedir runtimedir logfiledir proxycachedir; do
- eval "val=\"\$$var\""
- case $val in
- *+)
- val=`echo $val | sed -e 's;\+$;;'`
- eval "$var=\"\$val\""
- autosuffix=yes
- ;;
- *)
- autosuffix=no
- ;;
- esac
- val=`echo $val | sed -e 's:\(.\)/*$:\1:'`
- val=`echo $val | sed -e 's:$\([a-z_]*\):$(\1):g'`
- if test "$autosuffix" = "yes"; then
- if echo $val | grep apache >/dev/null; then
- addtarget=no
- else
- addtarget=yes
- fi
- if test "$addtarget" = "yes"; then
- val="$val/apache"
- fi
- fi
- eval "$var='$val'"
- done
- changequote([,])
-])dnl
-dnl
-dnl APACHE_ENABLE_LAYOUT
-dnl
-AC_DEFUN(APACHE_ENABLE_LAYOUT,[
-AC_ARG_ENABLE(layout,
-[ --enable-layout=LAYOUT],[
- LAYOUT=$enableval
-])
-
-if test -z "$LAYOUT"; then
- # XXX FIXME: this isn't a complete list of things that have to be set to
- # create the Apache layout in config.layout, and it really should just
- # use what is specified in config.layout instead of duping it.
- htdocsdir='$(prefix)/htdocs'
- iconsdir='$(prefix)/icons'
- cgidir='$(prefix)/cgi-bin'
- logfiledir='$(prefix)/logs'
- sysconfdir='${prefix}/conf'
- libexecdir='${prefix}/modules'
- layout_name=Apache
-else
- APACHE_LAYOUT($srcdir/config.layout, $LAYOUT)
-fi
-
-AC_MSG_CHECKING(for chosen layout)
-AC_MSG_RESULT($layout_name)
-])
dnl
dnl APACHE_ENABLE_MODULES
module_default=yes
AC_ARG_ENABLE(modules,
- [ --enable-modules=MODULE-LIST],[
- for i in $enableval; do
- if test "$i" = "all" -o "$i" = "most"; then
- module_selection=$i
- else
- eval "enable_$i=yes"
- fi
- done
+ APACHE_HELP_STRING(--enable-modules=MODULE-LIST,Space-separated list of modules to enable | "all" | "most" | "none"),[
+ if test "$enableval" = "none"; then
+ module_default=no
+ module_selection=none
+ else
+ for i in $enableval; do
+ if test "$i" = "all" -o "$i" = "most"; then
+ module_selection=$i
+ else
+ i=`echo $i | sed 's/-/_/g'`
+ eval "enable_$i=yes"
+ fi
+ done
+ fi
])
AC_ARG_ENABLE(mods-shared,
- [ --enable-mods-shared=MODULE-LIST],[
+ APACHE_HELP_STRING(--enable-mods-shared=MODULE-LIST,Space-separated list of shared modules to enable | "all" | "most"),[
for i in $enableval; do
if test "$i" = "all" -o "$i" = "most"; then
module_selection=$i
apache_cxx_done=yes
fi
])
+
+dnl
+dnl APACHE_CHECK_SSL_TOOLKIT
+dnl
+dnl Configure for the detected openssl/ssl-c toolkit installation, giving
+dnl preference to "--with-ssl=<path>" if it was specified.
+dnl
+AC_DEFUN(APACHE_CHECK_SSL_TOOLKIT,[
+if test "x$ap_ssltk_configured" = "x"; then
+ dnl initialise the variables we use
+ ap_ssltk_base=""
+ ap_ssltk_libs=""
+ ap_ssltk_type=""
+
+ dnl Determine the SSL/TLS toolkit's base directory, if any
+ AC_MSG_CHECKING([for SSL/TLS toolkit base])
+ AC_ARG_WITH(sslc, APACHE_HELP_STRING(--with-sslc=DIR,RSA SSL-C SSL/TLS toolkit), [
+ dnl If --with-sslc specifies a directory, we use that directory or fail
+ if test "x$withval" != "xyes" -a "x$withval" != "x"; then
+ dnl This ensures $withval is actually a directory and that it is absolute
+ ap_ssltk_base="`cd $withval ; pwd`"
+ fi
+ ap_ssltk_type="sslc"
+ ])
+ AC_ARG_WITH(ssl, APACHE_HELP_STRING(--with-ssl=DIR,OpenSSL SSL/TLS toolkit), [
+ dnl If --with-ssl specifies a directory, we use that directory or fail
+ if test "x$withval" != "xyes" -a "x$withval" != "x"; then
+ dnl This ensures $withval is actually a directory and that it is absolute
+ ap_ssltk_base="`cd $withval ; pwd`"
+ fi
+ ])
+ if test "x$ap_ssltk_base" = "x"; then
+ AC_MSG_RESULT(none)
+ else
+ AC_MSG_RESULT($ap_ssltk_base)
+ fi
+
+ dnl Run header and version checks
+ saved_CPPFLAGS="$CPPFLAGS"
+ saved_LIBS="$LIBS"
+ if test "x$ap_ssltk_base" != "x"; then
+ APR_ADDTO(CPPFLAGS, [-I$ap_ssltk_base/include])
+ APR_ADDTO(INCLUDES, [-I$ap_ssltk_base/include])
+ APR_ADDTO(LDFLAGS, [-L$ap_ssltk_base/lib])
+ if test "x$ap_platform_runtime_link_flag" != "x"; then
+ APR_ADDTO(LDFLAGS, [$ap_platform_runtime_link_flag$ap_ssltk_base/lib])
+ fi
+ fi
+ if test "x$ap_ssltk_type" = "x"; then
+ AC_MSG_CHECKING([for OpenSSL version])
+ dnl First check for manditory headers
+ AC_CHECK_HEADERS([openssl/opensslv.h openssl/ssl.h], [ap_ssltk_type="openssl"], [])
+ if test "$ap_ssltk_type" = "openssl"; then
+ dnl so it's OpenSSL - test for a good version
+ AC_TRY_COMPILE([#include <openssl/opensslv.h>],[
+#if !defined(OPENSSL_VERSION_NUMBER)
+#error "Missing openssl version"
+#endif
+#if (OPENSSL_VERSION_NUMBER < 0x009060af) \
+ || ((OPENSSL_VERSION_NUMBER > 0x00907000) && (OPENSSL_VERSION_NUMBER < 0x0090702f))
+#error "Insecure openssl version " OPENSSL_VERSION_TEXT
+#endif],
+ [AC_MSG_RESULT(OK)],
+ [dnl Replace this with OPENSSL_VERSION_TEXT from opensslv.h?
+ AC_MSG_RESULT([not encouraging])
+ echo "WARNING: OpenSSL version may contain security vulnerabilities!"
+ echo " Ensure the latest security patches have been applied!"
+ ])
+ else
+ AC_MSG_RESULT([no OpenSSL headers found])
+ fi
+ fi
+ if test "$ap_ssltk_type" != "openssl"; then
+ dnl Might be SSL-C - report, then test anything relevant
+ AC_MSG_CHECKING([for SSL-C version])
+ AC_CHECK_HEADERS([sslc.h], [ap_ssltk_type="sslc"], [ap_ssltk_type=""])
+ if test "$ap_ssltk_type" = "sslc"; then
+ ap_ssltk_libs="-lsslc"
+ AC_MSG_CHECKING([for SSL-C version])
+ AC_TRY_COMPILE([#include <sslc.h>],[
+#if !defined(SSLC_VERSION_NUMBER)
+#error "Missing SSL-C version"
+#endif
+#if SSLC_VERSION_NUMBER < 0x2310
+#define stringize_ver(x) #x
+#error "Insecure SSL-C version " stringize_ver(SSLC_VERSION_NUMBER)
+#endif],
+ [AC_MSG_RESULT(OK)],
+ [dnl Replace this with SSLC_VERSION_NUMBER?
+ AC_MSG_RESULT([not encouraging])
+ echo "WARNING: SSL-C version may contain security vulnerabilities!"
+ echo " Ensure the latest security patches have been applied!"
+ ])
+ else
+ AC_MSG_RESULT([no SSL-C headers found])
+ fi
+ fi
+ if test "x$ap_ssltk_type" = "x"; then
+ AC_MSG_ERROR([...No recognized SSL/TLS toolkit detected])
+ fi
+
+ if test "$ap_ssltk_type" = "openssl"; then
+ if test "x$ap_ssltk_base" != "x" -a \
+ -f "${ap_ssltk_base}/lib/pkgconfig/openssl.pc"; then
+ dnl Ensure that the given path is used by pkg-config too, otherwise
+ dnl the system openssl.pc might be picked up instead.
+ PKG_CONFIG_PATH="${ap_ssltk_base}/lib/pkgconfig${PKG_CONFIG_PATH+:}${PKG_CONFIG_PATH}"
+ export PKG_CONFIG_PATH
+ fi
+ if test -n "$PKGCONFIG"; then
+ ap_ssltk_libs="`$PKGCONFIG --libs-only-l openssl`"
+ if test $? -eq 0; then
+ pkglookup="`$PKGCONFIG --cflags-only-I openssl`"
+ APR_ADDTO(CPPFLAGS, [$pkglookup])
+ APR_ADDTO(INCLUDES, [$pkglookup])
+ pkglookup="`$PKGCONFIG --libs-only-L --libs-only-other openssl`"
+ APR_ADDTO(LDFLAGS, [$pkglookup])
+ else
+ ap_ssltk_libs="-lssl -lcrypto"
+ fi
+ else
+ ap_ssltk_libs="-lssl -lcrypto"
+ fi
+ fi
+ APR_SETVAR(SSL_LIBS, [$ap_ssltk_libs])
+ APR_ADDTO(LIBS, [$ap_ssltk_libs])
+ APACHE_SUBST(SSL_LIBS)
+
+ dnl Run library and function checks
+ liberrors=""
+ if test "$ap_ssltk_type" = "openssl"; then
+ AC_CHECK_HEADERS([openssl/engine.h])
+ AC_CHECK_FUNCS([SSLeay_version SSL_CTX_new], [], [liberrors="yes"])
+ AC_CHECK_FUNCS([ENGINE_init ENGINE_load_builtin_engines])
+ else
+ AC_CHECK_FUNCS([SSLC_library_version SSL_CTX_new], [], [liberrors="yes"])
+ AC_CHECK_FUNCS(SSL_set_state)
+ fi
+ AC_CHECK_FUNCS(SSL_set_cert_store)
+ dnl restore
+ CPPFLAGS="$saved_CPPFLAGS"
+ LIBS="$saved_LIBS"
+ if test "x$liberrors" != "x"; then
+ AC_MSG_ERROR([... Error, SSL/TLS libraries were missing or unusable])
+ fi
+
+ dnl Adjust apache's configuration based on what we found above.
+ dnl (a) define preprocessor symbols
+ if test "$ap_ssltk_type" = "openssl"; then
+ AC_DEFINE(HAVE_OPENSSL, 1, [Define if SSL is supported using OpenSSL])
+ else
+ AC_DEFINE(HAVE_SSLC, 1, [Define if SSL is supported using SSL-C])
+ fi
+fi
+])
+
+dnl
+dnl APACHE_EXPORT_ARGUMENTS
+dnl Export (via APACHE_SUBST) the various path-related variables that
+dnl apache will use while generating scripts like autoconf and apxs and
+dnl the default config file.
+
+AC_DEFUN(APACHE_SUBST_EXPANDED_ARG,[
+ APR_EXPAND_VAR(exp_$1, [$]$1)
+ APACHE_SUBST(exp_$1)
+ APR_PATH_RELATIVE(rel_$1, [$]exp_$1, ${prefix})
+ APACHE_SUBST(rel_$1)
+])
+
+AC_DEFUN(APACHE_EXPORT_ARGUMENTS,[
+ APACHE_SUBST_EXPANDED_ARG(exec_prefix)
+ APACHE_SUBST_EXPANDED_ARG(bindir)
+ APACHE_SUBST_EXPANDED_ARG(sbindir)
+ APACHE_SUBST_EXPANDED_ARG(libdir)
+ APACHE_SUBST_EXPANDED_ARG(libexecdir)
+ APACHE_SUBST_EXPANDED_ARG(mandir)
+ APACHE_SUBST_EXPANDED_ARG(sysconfdir)
+ APACHE_SUBST_EXPANDED_ARG(datadir)
+ APACHE_SUBST_EXPANDED_ARG(installbuilddir)
+ APACHE_SUBST_EXPANDED_ARG(errordir)
+ APACHE_SUBST_EXPANDED_ARG(iconsdir)
+ APACHE_SUBST_EXPANDED_ARG(htdocsdir)
+ APACHE_SUBST_EXPANDED_ARG(manualdir)
+ APACHE_SUBST_EXPANDED_ARG(cgidir)
+ APACHE_SUBST_EXPANDED_ARG(includedir)
+ APACHE_SUBST_EXPANDED_ARG(localstatedir)
+ APACHE_SUBST_EXPANDED_ARG(runtimedir)
+ APACHE_SUBST_EXPANDED_ARG(logfiledir)
+ APACHE_SUBST_EXPANDED_ARG(proxycachedir)
+])
+
+dnl
+dnl APACHE_CHECK_APxVER({apr|apu}, major, minor,
+dnl [actions-if-ok], [actions-if-not-ok])
+dnl
+dnl Checks for APR or APR-util of given major/minor version or later;
+dnl if so, runs actions-if-ok; otherwise runs actions-if-not-ok if given.
+dnl If the version is not satisfactory and actions-if-not-ok is not
+dnl given, then an error is printed and the configure script is aborted.
+dnl
+dnl The first argument must be [apr] or [apu].
+dnl
+AC_DEFUN([APACHE_CHECK_APxVER], [
+define(ap_ckver_major, translit($1, [apru], [APRU])[_MAJOR_VERSION])
+define(ap_ckver_minor, translit($1, [apru], [APRU])[_MINOR_VERSION])
+define(ap_ckver_cvar, [ap_cv_$1ver$2$3])
+define(ap_ckver_name, ifelse([$1],[apr],[APR],[APR-util]))
+
+ap_ckver_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="$CPPFLAGS `$[$1]_config --includes`"
+
+AC_CACHE_CHECK([for ap_ckver_name version $2.$3.0 or later], ap_ckver_cvar, [
+AC_EGREP_CPP([good], [
+#include <$1_version.h>
+#if ]ap_ckver_major[ > $2 || (]ap_ckver_major[ == $2 && ]ap_ckver_minor[ >= $3)
+good
+#endif
+], [ap_ckver_cvar=yes], [ap_ckver_cvar=no])])
+
+if test "$ap_ckver_cvar" = "yes"; then
+ ifelse([$4],[],[:],[$4])
+else
+ ifelse([$5],[],[AC_MSG_ERROR([ap_ckver_name version $2.$3.0 or later is required])], [$5])
+fi
+
+CPPFLAGS="$ap_ckver_CPPFLAGS"
+
+undefine([ap_ckver_major])
+undefine([ap_ckver_minor])
+undefine([ap_ckver_cvar])
+undefine([ap_ckver_name])
+])
+
+dnl
+dnl APACHE_CHECK_VOID_PTR_LEN
+dnl
+dnl Checks if the size of a void pointer is at least as big as a "long"
+dnl integer type.
+dnl
+AC_DEFUN([APACHE_CHECK_VOID_PTR_LEN], [
+
+AC_CACHE_CHECK([for void pointer length], [ap_cv_void_ptr_lt_long],
+[AC_TRY_RUN([
+int main(void)
+{
+ return sizeof(void *) < sizeof(long);
+}], [ap_cv_void_ptr_lt_long=no], [ap_cv_void_ptr_lt_long=yes],
+ [ap_cv_void_ptr_lt_long=yes])])
+
+if test "$ap_cv_void_ptr_lt_long" = "yes"; then
+ AC_MSG_ERROR([Size of "void *" is less than size of "long"])
+fi
+])