]> granicus.if.org Git - apache/blobdiff - acinclude.m4
Add ap_errorlog_provider to make ErrorLog logging modular. Move
[apache] / acinclude.m4
index b12fa502f5b8366d73969f8eb2553e09775f3416..ee273ef09967d719a849bfe5ca4665fb60b79dd1 100644 (file)
@@ -53,6 +53,8 @@ AC_DEFUN(APACHE_GEN_CONFIG_VARS,[
   APACHE_SUBST(CPPFLAGS)
   APACHE_SUBST(CFLAGS)
   APACHE_SUBST(CXXFLAGS)
+  APACHE_SUBST(CC_FOR_BUILD)
+  APACHE_SUBST(CFLAGS_FOR_BUILD)
   APACHE_SUBST(LTFLAGS)
   APACHE_SUBST(LDFLAGS)
   APACHE_SUBST(LT_LDFLAGS)
@@ -89,6 +91,8 @@ AC_DEFUN(APACHE_GEN_CONFIG_VARS,[
   APACHE_SUBST(MKDEP)
   APACHE_SUBST(INSTALL_PROG_FLAGS)
   APACHE_SUBST(DSO_MODULES)
+  APACHE_SUBST(ENABLED_DSO_MODULES)
+  APACHE_SUBST(LOAD_ALL_MODULES)
   APACHE_SUBST(APR_BINDIR)
   APACHE_SUBST(APR_INCLUDEDIR)
   APACHE_SUBST(APR_VERSION)
@@ -97,10 +101,12 @@ AC_DEFUN(APACHE_GEN_CONFIG_VARS,[
   APACHE_SUBST(APU_INCLUDEDIR)
   APACHE_SUBST(APU_VERSION)
   APACHE_SUBST(APU_CONFIG)
+  APACHE_SUBST(APREQ_MAJOR_VERSION)
+  APACHE_SUBST(APREQ_LIBTOOL_VERSION)
 
   abs_srcdir="`(cd $srcdir && pwd)`"
 
-  echo creating config_vars.mk
+  AC_MSG_NOTICE([creating config_vars.mk])
   test -d build || $mkdir_p build
   > build/config_vars.mk
   for i in $APACHE_VAR_SUBST; do
@@ -143,12 +149,20 @@ AC_DEFUN(APACHE_TYPE_RLIM_T, [
   fi
 ])
 
+dnl the list of build variables which are available for customization on a
+dnl per module subdir basis (to be inserted into modules.mk with a "MOD_"
+dnl prefix, i.e. MOD_CFLAGS etc.). Used in APACHE_MODPATH_{INIT,FINISH}.
+define(mod_buildvars, [CFLAGS CXXFLAGS CPPFLAGS LDFLAGS LIBS INCLUDES])
+dnl
 dnl APACHE_MODPATH_INIT(modpath)
 AC_DEFUN(APACHE_MODPATH_INIT,[
   current_dir=$1
   modpath_current=modules/$1
   modpath_static=
   modpath_shared=
+  for var in mod_buildvars; do
+    eval MOD_$var=
+  done
   test -d $1 || $srcdir/build/mkdir.sh $modpath_current
   > $modpath_current/modules.mk
 ])dnl
@@ -157,6 +171,11 @@ AC_DEFUN(APACHE_MODPATH_FINISH,[
   echo "DISTCLEAN_TARGETS = modules.mk" >> $modpath_current/modules.mk
   echo "static = $modpath_static" >> $modpath_current/modules.mk
   echo "shared = $modpath_shared" >> $modpath_current/modules.mk
+  for var in mod_buildvars; do
+    if eval val=\"\$MOD_$var\"; test -n "$val"; then
+      echo "MOD_$var = $val" >> $modpath_current/modules.mk
+    fi
+  done
   if test ! -z "$modpath_static" -o ! -z "$modpath_shared"; then
     MODULE_DIRS="$MODULE_DIRS $current_dir"
   else
@@ -198,6 +217,27 @@ EOF
     fi
   fi
 ])dnl
+dnl Same as APACHE_MODPATH_INIT/FINISH but for MPMs
+dnl APACHE_MPMPATH_INIT(mpmpath)
+AC_DEFUN(APACHE_MPMPATH_INIT,[
+  current_dir=$1
+  modpath_current=server/mpm/$1
+  modpath_static=
+  modpath_shared=
+  for var in mod_buildvars; do
+    eval MOD_$var=
+  done
+  test -d $1 || $srcdir/build/mkdir.sh $modpath_current
+  > $modpath_current/modules.mk
+])dnl
+dnl
+AC_DEFUN(APACHE_MPMPATH_FINISH,[
+  for var in mod_buildvars; do
+    if eval val=\"\$MOD_$var\"; test -n "$val"; then
+      echo "MOD_$var = $val" >> $modpath_current/modules.mk
+    fi
+  done
+])dnl
 
 dnl
 dnl APACHE_MPM_MODULE(name[, shared[, objects[, config[, path[, libs]]]]])
@@ -234,7 +274,7 @@ AC_DEFUN(APACHE_MPM_MODULE,[
         if test -z "$2"; then
             APR_ADDTO(AP_LIBS, [$6])
             libname="lib$1.la"
-            cat >$mpmpath/modules.mk<<EOF
+            cat >>$mpmpath/modules.mk<<EOF
 $libname: $objects
        \$(MOD_LINK) $objects
 DISTCLEAN_TARGETS = modules.mk
@@ -245,7 +285,7 @@ EOF
             apache_need_shared=yes
             libname="mod_mpm_$1.la"
             shobjects=`echo $objects | sed 's/\.lo/.slo/g'`
-            cat >$mpmpath/modules.mk<<EOF
+            cat >>$mpmpath/modules.mk<<EOF
 $libname: $shobjects
        \$(SH_LINK) -rpath \$(libexecdir) -module -avoid-version $objects $6
 DISTCLEAN_TARGETS = modules.mk
@@ -255,6 +295,7 @@ EOF
             # add default MPM to LoadModule list
             if test $1 = $default_mpm; then
                 DSO_MODULES="$DSO_MODULES mpm_$1"
+                ENABLED_DSO_MODULES="${ENABLED_DSO_MODULES},mpm_$1"
             fi
         fi
         $4
@@ -262,7 +303,7 @@ EOF
 ])dnl
 
 dnl
-dnl APACHE_MODULE(name, helptext[, objects[, structname[, default[, config]]]])
+dnl APACHE_MODULE(name, helptext[, objects[, structname[, default[, config[, prereq_module]]]]])
 dnl
 dnl default is one of:
 dnl   yes    -- enabled by default. user must explicitly disable.
@@ -279,29 +320,30 @@ dnl            setting. otherwise, fall under the "all" setting.
 dnl            explicit yes/no always overrides, except if the user selects
 dnl            "reallyall".
 dnl
+dnl prereq_module is a module (without the "mod_" prefix) that must be enabled
+dnl   if the current module is enabled.  If the current module is built
+dnl   statically, prereq_module must be built statically, too.  If these
+dnl   conditions are not fulfilled, configure will abort if the current module
+dnl   has been enabled explicitly. Otherwise, configure will disable the
+dnl   current module.
+dnl   prereq_module's APACHE_MODULE() statement must have been processed
+dnl   before the current APACHE_MODULE() statement.
+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,_,-),APACHE_HELP_STRING(optname(),$2),,enable_$1=ifelse($5,,maybe-all,$5))
+  AC_ARG_ENABLE(translit($1,_,-),APACHE_HELP_STRING(optname(),$2),force_$1=$enableval,enable_$1=ifelse($5,,maybe-all,$5))
   undefine([optname])dnl
   _apmod_extra_msg=""
-  dnl When --enable-modules=most or --enable-modules=(really)all is set and the
-  dnl module was not explicitly requested, allow a module to disable itself if
+  dnl If the module was not explicitly requested, allow it to disable itself if
   dnl its pre-reqs fail.
-  dnl XXX: Todo: Allow to disable specific modules even with "reallyall".
   case "$enable_$1" in
     yes|static|shared)
-      _apmod_error_fatal="yes"
+      _apmod_required="yes"
       ;;
     *)
-      case "$module_selection" in
-      reallyall|all|most)
-        _apmod_error_fatal="no"
-        ;;
-      *)
-        _apmod_error_fatal="yes"
-        ;;
-      esac
+      _apmod_required="no"
+      ;;
   esac
   if test "$enable_$1" = "static"; then
     enable_$1=static
@@ -324,23 +366,33 @@ AC_DEFUN(APACHE_MODULE,[
     else
       enable_$1=no
     fi
-  elif test "$enable_$1" = "no" -a "$module_selection" = "reallyall"; then
+  elif test "$enable_$1" = "no" -a "$module_selection" = "reallyall" -a \
+            "$force_$1" != "no" ; then
       enable_$1=$module_default
       _apmod_extra_msg=" ($module_selection)"
   fi
   if test "$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])
+    ifelse([$6$7],,:,
+           [AC_MSG_RESULT([checking dependencies])
+            ifelse([$7],,:,[if test "$enable_$7" = "no" ; then
+                              enable_$1=no
+                              AC_MSG_WARN("mod_$7 is disabled but required for mod_$1")
+                            elif test "$enable_$1" = "static" && test "$enable_$7" != "static" ; then
+                              enable_$1=no
+                              AC_MSG_WARN("cannot build mod_$1 statically if mod_$7 is built shared")
+                            else])
+            ifelse([$6],,:,[  $6])
+            ifelse([$7],,:,[fi])
+            AC_MSG_CHECKING(whether to enable mod_$1)
+            if test "$enable_$1" = "no"; then
+              if test "$_apmod_required" = "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_$1" != "no"; then
@@ -356,6 +408,9 @@ AC_DEFUN(APACHE_MODULE,[
       sharedobjs=yes
       shared=yes
       DSO_MODULES="$DSO_MODULES $1"
+      if test "$5" = "yes" ; then
+        ENABLED_DSO_MODULES="${ENABLED_DSO_MODULES},$1"
+      fi
       ;;
     esac
     define([modprefix], [MOD_]translit($1, [a-z-], [A-Z_]))
@@ -445,14 +500,14 @@ dnl
 AC_DEFUN(APACHE_CHECK_OPENSSL,[
   AC_CACHE_CHECK([for OpenSSL], [ac_cv_openssl], [
     dnl initialise the variables we use
-    ac_cv_openssl=yes
+    ac_cv_openssl=no
     ap_openssl_found=""
     ap_openssl_base=""
     ap_openssl_libs=""
 
     dnl Determine the OpenSSL base directory, if any
     AC_MSG_CHECKING([for user-provided OpenSSL base directory])
-    AC_ARG_WITH(ssl, APACHE_HELP_STRING(--with-ssl=DIR,OpenSSL base directory), [
+    AC_ARG_WITH(ssl, APACHE_HELP_STRING(--with-ssl=PATH,OpenSSL installation directory), [
       dnl If --with-ssl specifies a directory, we use that directory
       if test "x$withval" != "xyes" -a "x$withval" != "x"; then
         dnl This ensures $withval is actually a directory and that it is absolute
@@ -469,7 +524,6 @@ AC_DEFUN(APACHE_CHECK_OPENSSL,[
     saved_CPPFLAGS="$CPPFLAGS"
     saved_LIBS="$LIBS"
     saved_LDFLAGS="$LDFLAGS"
-    SSL_LIBS=""
 
     dnl Before doing anything else, load in pkg-config variables
     if test -n "$PKGCONFIG"; then
@@ -481,15 +535,24 @@ AC_DEFUN(APACHE_CHECK_OPENSSL,[
         PKG_CONFIG_PATH="${ap_openssl_base}/lib/pkgconfig${PKG_CONFIG_PATH+:}${PKG_CONFIG_PATH}"
         export PKG_CONFIG_PATH
       fi
-      ap_openssl_libs="`$PKGCONFIG --libs-only-l openssl 2>&1`"
+      AC_ARG_ENABLE(ssl-staticlib-deps,APACHE_HELP_STRING(--enable-ssl-staticlib-deps,[link mod_ssl with dependencies of OpenSSL's static libraries (as indicated by "pkg-config --static"). Must be specified in addition to --enable-ssl.]), [
+        if test "$enableval" = "yes"; then
+          PKGCONFIG_LIBOPTS="--static"
+        fi
+      ])
+      ap_openssl_libs="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-l --silence-errors openssl`"
       if test $? -eq 0; then
         ap_openssl_found="yes"
         pkglookup="`$PKGCONFIG --cflags-only-I openssl`"
         APR_ADDTO(CPPFLAGS, [$pkglookup])
-        APR_ADDTO(INCLUDES, [$pkglookup])
-        pkglookup="`$PKGCONFIG --libs-only-L --libs-only-other openssl`"
+        APR_ADDTO(MOD_CFLAGS, [$pkglookup])
+        APR_ADDTO(ab_CFLAGS, [$pkglookup])
+        pkglookup="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-L openssl`"
         APR_ADDTO(LDFLAGS, [$pkglookup])
-        APR_ADDTO(SSL_LIBS, [$pkglookup])
+        APR_ADDTO(MOD_LDFLAGS, [$pkglookup])
+        pkglookup="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-other openssl`"
+        APR_ADDTO(LDFLAGS, [$pkglookup])
+        APR_ADDTO(MOD_LDFLAGS, [$pkglookup])
       fi
       PKG_CONFIG_PATH="$saved_PKG_CONFIG_PATH"
     fi
@@ -497,36 +560,35 @@ AC_DEFUN(APACHE_CHECK_OPENSSL,[
     dnl fall back to the user-supplied directory if not found via pkg-config
     if test "x$ap_openssl_base" != "x" -a "x$ap_openssl_found" = "x"; then
       APR_ADDTO(CPPFLAGS, [-I$ap_openssl_base/include])
-      APR_ADDTO(INCLUDES, [-I$ap_openssl_base/include])
+      APR_ADDTO(MOD_CFLAGS, [-I$ap_openssl_base/include])
+      APR_ADDTO(ab_CFLAGS, [-I$ap_openssl_base/include])
       APR_ADDTO(LDFLAGS, [-L$ap_openssl_base/lib])
-      APR_ADDTO(SSL_LIBS, [-L$ap_openssl_base/lib])
+      APR_ADDTO(MOD_LDFLAGS, [-L$ap_openssl_base/lib])
       if test "x$ap_platform_runtime_link_flag" != "x"; then
         APR_ADDTO(LDFLAGS, [$ap_platform_runtime_link_flag$ap_openssl_base/lib])
-        APR_ADDTO(SSL_LIBS, [$ap_platform_runtime_link_flag$ap_openssl_base/lib])
+        APR_ADDTO(MOD_LDFLAGS, [$ap_platform_runtime_link_flag$ap_openssl_base/lib])
       fi
     fi
 
-    AC_MSG_CHECKING([for OpenSSL version])
+    AC_MSG_CHECKING([for OpenSSL version >= 0.9.7])
     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
+#if OPENSSL_VERSION_NUMBER < 0x0090700f
+#error "Unsupported 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])
-       AC_MSG_WARN([OpenSSL version may contain security vulnerabilities!]
-                   [ Ensure the latest security patches have been applied!])
-    ])
+      [AC_MSG_RESULT(OK)
+       ac_cv_openssl=yes],
+      [AC_MSG_RESULT(FAILED)])
 
     if test "x$ac_cv_openssl" = "xyes"; then
-      ap_openssl_libs="-lssl -lcrypto `$apr_config --libs`"
-      APR_ADDTO(SSL_LIBS, [$ap_openssl_libs])
+      ap_openssl_libs="${ap_openssl_libs:--lssl -lcrypto} `$apr_config --libs`"
+      APR_ADDTO(MOD_LDFLAGS, [$ap_openssl_libs])
       APR_ADDTO(LIBS, [$ap_openssl_libs])
-      APACHE_SUBST(SSL_LIBS)
+      APR_SETVAR(ab_LDFLAGS, [$MOD_LDFLAGS])
+      APACHE_SUBST(ab_CFLAGS)
+      APACHE_SUBST(ab_LDFLAGS)
 
       dnl Run library and function checks
       liberrors=""
@@ -534,9 +596,10 @@ AC_DEFUN(APACHE_CHECK_OPENSSL,[
       AC_CHECK_FUNCS([SSLeay_version SSL_CTX_new], [], [liberrors="yes"])
       AC_CHECK_FUNCS([ENGINE_init ENGINE_load_builtin_engines])
       if test "x$liberrors" != "x"; then
-        ac_cv_openssl=no
         AC_MSG_WARN([OpenSSL libraries are unusable])
       fi
+    else
+      AC_MSG_WARN([OpenSSL version is too old])
     fi
 
     dnl restore
@@ -560,7 +623,7 @@ AC_DEFUN([APACHE_CHECK_SERF], [
     ac_cv_serf=no
     serf_prefix=/usr
     SERF_LIBS=""
-    AC_ARG_WITH(serf, APACHE_HELP_STRING([--with-serf=PREFIX],
+    AC_ARG_WITH(serf, APACHE_HELP_STRING([--with-serf=PATH],
                                     [Serf client library]),
     [
         if test "$withval" = "yes" ; then
@@ -586,7 +649,7 @@ AC_DEFUN([APACHE_CHECK_SERF], [
   if test "$ac_cv_serf" = "yes"; then
     AC_DEFINE(HAVE_SERF, 1, [Define if libserf is available])
     APR_SETVAR(SERF_LIBS, [-L$serf_prefix/lib -lserf-0])
-    APR_ADDTO(INCLUDES, [-I$serf_prefix/include/serf-0])
+    APR_ADDTO(MOD_INCLUDES, [-I$serf_prefix/include/serf-0])
   fi
 ])
 
@@ -682,7 +745,7 @@ 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])])
+    [ap_cv_void_ptr_lt_long="cross compile - not checked"])])
 
 if test "$ap_cv_void_ptr_lt_long" = "yes"; then
     AC_MSG_ERROR([Size of "void *" is less than size of "long"])
@@ -709,3 +772,25 @@ YES_IS_DEFINED
     CPPFLAGS="$apache_old_cppflags"
   ])
 ])
+
+dnl
+dnl APACHE_ADD_GCC_CFLAGS
+dnl
+dnl Check if compiler is gcc and supports flag. If yes, add to CFLAGS.
+dnl
+AC_DEFUN([APACHE_ADD_GCC_CFLAG], [
+  define([ap_gcc_ckvar], [ac_cv_gcc_]translit($1, [-:.=], [____]))
+  if test "$GCC" = "yes"; then
+    AC_CACHE_CHECK([whether gcc accepts $1], ap_gcc_ckvar, [
+      save_CFLAGS="$CFLAGS"
+      CFLAGS="$CFLAGS $1"
+      AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo() { return 0; }])],
+        [ap_gcc_ckvar=yes], [ap_gcc_ckvar=no])
+      CFLAGS="$save_CFLAGS"
+    ])
+    if test "$]ap_gcc_ckvar[" = "yes" ; then
+       APR_ADDTO(CFLAGS,[$1])
+    fi
+  fi
+  undefine([ap_gcc_ckvar])
+])