fix from alex
[rrdtool.git] / configure.ac
index f12c63e..f08b4e9 100644 (file)
@@ -138,6 +138,21 @@ AC_PROG_LIBTOOL
 dnl Try to detect/use GNU features
 CFLAGS="$CFLAGS -D_GNU_SOURCE"
 
+dnl check for -Werror separatly
+dnl (quite a few autotool checks don't work with -Werror; also, the
+dnl check for -Werror fails after checking and adding the other flags)
+AC_CACHE_CHECK([if gcc likes the -Werror flag], rd_cv_gcc_flag__Werror,
+  [AC_COMPILE_IFELSE(
+    [AC_LANG_PROGRAM([[]], [[return 0 ]])],
+    [rd_cv_gcc_flag__Werror="yes"],
+    [rd_cv_gcc_flag__Werror="no"])])
+if test "x$rd_cv_gcc_flag__Werror" = "xyes"; then
+  WERROR="-Werror"
+else
+  WERROR=""
+fi
+AC_SUBST(WERROR)
+
 dnl which flags does the compiler support?
 if test "x$GCC" = "xyes"; then
   for flag in -fno-strict-aliasing -Wall -std=c99 -pedantic -Wundef -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -Wold-style-definition -W; do
@@ -352,7 +367,7 @@ CONFIGURE_PART(Resolve Portability Issues)
 dnl Do we need getopt_long
 
 build_getopt=no
-RRD_GETOPT_LONG="#"
+RRD_GETOPT_LONG="LIBC_HAS_GETOPT_LONG"
 AC_CHECK_FUNC(getopt_long,[],[
 RRD_GETOPT_LONG="getopt_long"
 build_getopt=yes
@@ -532,10 +547,11 @@ AC_MSG_CHECKING(Perl Modules to build)
 AC_MSG_RESULT(${COMP_PERL:-No Perl Modules will be built})
 
 # Options to pass when configuring perl module
-ppref=$prefix
-test "$ppref" = "NONE" && ppref=$ac_default_prefix
+langpref=$prefix
+test "$langpref" = "$(DESTDIR)NONE" && langpref='$(DESTDIR)'$ac_default_prefix
+test "$langpref" = "NONE" && langpref=$ac_default_prefix
 
-PERL_MAKE_OPTIONS="PREFIX=$ppref LIB=$ppref/lib/perl/$PERL_VERSION"
+PERL_MAKE_OPTIONS="PREFIX=$langpref LIB=$langpref/lib/perl/$PERL_VERSION"
 
 dnl pass additional perl options when generating Makefile from Makefile.PL
 AC_ARG_ENABLE(perl-site-install,
@@ -597,16 +613,13 @@ else
        fi                              
 fi
 
-rpref=$prefix
-test "$rpref" = "NONE" && rpref=$ac_default_prefix
-
 dnl pass additional ruby options when generating Makefile from Makefile.PL
 AC_ARG_ENABLE(ruby-site-install,
 [  --enable-ruby-site-install   by default the rrdtool ruby modules are installed
                          together with rrdtool in $prefix/lib/ruby. You have to
-                          add $prefix/lib/ruby/$ruby_version/$sitearch to you $: variable
+                          add $prefix/lib/ruby/$ruby_version/$sitearch to your $: variable
                           for ruby to find the RRD.so file.],
-[RUBY_MAKE_OPTIONS=],[RUBY_MAKE_OPTIONS="sitedir="'$(DESTDIR)'"$rpref/lib/ruby"])
+[RUBY_MAKE_OPTIONS=],[RUBY_MAKE_OPTIONS="sitedir=$langpref/lib/ruby"])
 
     
 AC_ARG_WITH(ruby-options,
@@ -620,6 +633,155 @@ AC_SUBST(RUBY_MAKE_OPTIONS)
 AC_SUBST(RUBY)
 AC_SUBST(COMP_RUBY)
 
+dnl Check for Lua.
+AC_PATH_PROG(LUA, lua, no)
+
+AC_ARG_ENABLE(lua,[  --disable-lua           do not build the lua modules],
+[],[enable_lua=yes])
+
+COMP_LUA=
+if test "$LUA" = "no" -o "$enable_lua" = "no"; then
+  enable_lua=no
+else
+  AC_MSG_CHECKING(for lua >= 5.0)
+  read LUA_MAJOR LUA_MINOR LUA_POINT <<LUA_EOF
+    $($LUA -v 2>&1 | cut -f2 -d' ' | sed -e 's/\./ /g')
+LUA_EOF
+  if test 0$LUA_MAJOR -lt 5; then
+    AC_MSG_RESULT([no, version found is $LUA_MAJOR.$LUA_MINOR])
+  else
+    AC_MSG_RESULT([$LUA_MAJOR.$LUA_MINOR found])
+    lua_vdot=$LUA_MAJOR.$LUA_MINOR
+    lua_vndot=$LUA_MAJOR$LUA_MINOR
+    lua_version=$LUA_MAJOR.$LUA_MINOR.$LUA_POINT
+    AC_CHECK_HEADERS(lua$lua_vndot/lua.h,
+      [AC_CHECK_HEADERS(lua$lua_vndot/lualib.h,
+        [AC_CHECK_HEADER(lua$lua_vndot/lauxlib.h,
+          [lua_headerdir=lua$lua_vndot],
+          [])],
+        [])],
+      [AC_CHECK_HEADERS(lua$lua_vdot/lua.h,
+        [AC_CHECK_HEADERS(lua$lua_vdot/lualib.h,
+          [AC_CHECK_HEADER(lua$lua_vdot/lauxlib.h,
+            [lua_headerdir=lua$lua_vdot],
+            [])],
+          [])],
+        [AC_CHECK_HEADERS(lua.h,
+          [AC_CHECK_HEADERS(lualib.h,
+            [AC_CHECK_HEADER(lauxlib.h,
+              [lua_headerdir=""],
+              [lua_headerdir="no"])],
+            [])],
+          [])])])
+
+    if test "$lua_headerdir" = "no"; then
+      enable_lua=no
+    else
+      COMP_LUA=lua
+    fi
+
+    if test "$COMP_LUA" != "lua"; then
+      enable_lua=no
+      AC_MSG_WARN([Lua $lua_vdot found but not lua.h, lualib.h and lauxlib.h! Please install the -dev packages for Lua $lua_vdot])
+    else
+      # OK, headers found, let's check the libraries (LIBS is not used)
+      LIBS=
+      lua_havelib=no
+      LUA_HAVE_COMPAT51=DONT_HAVE_COMPAT51
+      AC_SEARCH_LIBS(lua_call, lua$lua_vdot lua$lua_vndot lua,
+        [AC_SEARCH_LIBS(luaL_register, lua$lua_vdot lua$lua_vndot lua,
+          [lua_havelib=LUA$lua_vndot],
+          [AC_SEARCH_LIBS(luaL_module, lualib$lua_vndot lualib$lua_vdot lualib,
+            [lua_havelib=$lua_vndot; $LUA -l compat-5.1 2>/dev/null;
+             test "$?" = "0" && LUA_HAVE_COMPAT51=HAVE_COMPAT51],
+            [AC_SEARCH_LIBS(luaL_openlib, lualib$lua_vdot lualib$lua_vndot lualib,
+              [lua_havelib=$lua_vndot],
+              [COMP_LUA=], [-lm])], [-lm])], [-lm])],
+        [COMP_LUA=], [-lm])
+      lua_libs=$LIBS
+      LIBS=
+
+      # Options to pass when configuring Lua module
+      if test  "$lua_havelib" != "no"; then
+        # OK, headers and libs found. Try to set lua flags
+        # and modules installation dirs with pkg-config
+        if test "$PKGCONFIG" != "no"; then
+          if test "$lua_vndot" = "50"; then
+            lua_pkg_prefix=lualib
+          else
+            lua_pkg_prefix=lua
+          fi
+          # try with dot, without dot and finally without version
+          for f in $lua_pkg_prefix$lua_vdot $lua_pkg_prefix$lua_vndot $lua_pkg_prefix; do
+            lua_exec_prefix=`$PKGCONFIG --variable=prefix $f 2>/dev/null`
+            # same binaries?
+            if test "$lua_exec_prefix/bin/lua" = "$LUA"; then 
+                # OK, found CFLAGS. Get Lua LFLAGS and modules install dir
+                LUA_CFLAGS=`$PKGCONFIG --cflags $f 2>/dev/null`
+                LUA_LFLAGS=`$PKGCONFIG --libs $f 2>/dev/null`
+                LUA_INSTALL_CMOD=`$PKGCONFIG --variable=INSTALL_CMOD $f 2>/dev/null`
+                LUA_INSTALL_LMOD=`$PKGCONFIG --variable=INSTALL_LMOD $f 2>/dev/null`
+                break
+            fi
+          done
+        fi
+
+        LUA_RRD_LIBDIR="$langpref/lib/lua/$lua_vdot"
+        # if lua 5.0 can't find compat-5.1, force installation of
+        # compat-5.1.lua together with RRDtool.
+        if test "$lua_vdot" = "5.0" -a "$LUA_HAVE_COMPAT51" != "HAVE_COMPAT51"; then
+          lua_need_compat51=1 
+          LUA_INSTALL_LMOD="$LUA_RRD_LIBDIR"
+        fi
+
+        # if not set with pkg-config, use default values in src packages compat-5.1, lua 5.1
+        if test "$LUA_CFLAGS" = ""; then
+          AC_MSG_WARN(Setting Lua include and lib flags to defaults in compat-5.1 and lua 5.1 sources)
+          LUA_CFLAGS="-I/usr/local/include -I/usr/local/include/lua -I/usr/local/include/lua/$lua_vdot"
+          LUA_LFLAGS="-L/usr/local/lib -L/usr/local/lib/lua -L/usr/local/lib/lua/$lua_vdot $lua_libs"
+          LUA_INSTALL_CMOD="/usr/local/lib/lua/$lua_vdot"
+        fi
+
+        dnl pass additional lua options
+        dnl if lua-site-install is not set, overwrite LUA_INSTALL_CMOD already
+        dnl found and install together with RRDtool, under $langpref.
+        AC_ARG_ENABLE(lua-site-install,
+        [  --enable-lua-site-install   by default the lua module is installed
+                          together with rrdtool in $prefix/lib/lua/$lua_version.
+                          You have to add $prefix/lib/lua/$lua_version/?.so to
+                          package.cpath for lua to find 'rrd.so'. For lua 5.0
+                          you may also need to change LUA_PATH to the same dir,
+                          to require 'compat-5.1'. When you set this option the
+                          lua modules will get installed wherever your Lua
+                          setup thinks it is best.
+                          WARNING: if you set this option, system lua modules
+                          compat-5.1.lua and rrd.so, if any, may be overwritten.],
+        [],
+        [LUA_INSTALL_CMOD="$LUA_RRD_LIBDIR"; LUA_INSTALL_LMOD="$LUA_RRD_LIBDIR"])
+
+        LUA_DEFINES="-DLUA$lua_vndot -D$LUA_HAVE_COMPAT51"
+        AC_SUBST(LUA)
+        AC_SUBST(COMP_LUA)
+        AC_SUBST(LUA_INSTALL_CMOD)
+        AC_SUBST(LUA_INSTALL_LMOD)
+        AC_SUBST(LUA_CFLAGS)
+        AC_SUBST(LUA_LFLAGS)
+       AC_SUBST(LUA_DEFINES)
+      else
+        enable_lua=no
+        AC_MSG_RESULT([Lua headers found but not the libraries! Please reinstall the dev packages for Lua $LUA_MAJOR.$LUA_MINOR])
+      fi
+    fi
+  fi
+fi
+dnl If Lua 5.0, we need compat-5.1. Add ours unless already
+dnl integrated as in Debian/Ubuntu 5.0 -dev packages.
+AM_CONDITIONAL(LUA_NEED_OUR_COMPAT51,
+      [test "$lua_vdot" = "5.0" -a "$LUA_HAVE_COMPAT51" != "HAVE_COMPAT51"])
+AM_CONDITIONAL(LUA_SITE_CINSTALL, [test "$LUA_INSTALL_CMOD" != "$LUA_RRD_LIBDIR"])
+AM_CONDITIONAL(LUA_SITE_LINSTALL, [test "$LUA_INSTALL_LMOD" != "$LUA_RRD_LIBDIR"])
+AM_CONDITIONAL(LUA50, [test "$lua_vndot" = "50"])
+AM_CONDITIONAL(BUILD_LUA, [test "$enable_lua" = "yes"])
 
 enable_tcl_site=no
 
@@ -711,11 +873,13 @@ AC_CONFIG_FILES([examples/Makefile])
 AC_CONFIG_FILES([doc/Makefile])
 AC_CONFIG_FILES([po/Makefile.in])
 AC_CONFIG_FILES([src/Makefile])
-AC_CONFIG_FILES([src/librrd.sym])
+AC_CONFIG_FILES([src/librrd.sym.in])
+AC_CONFIG_FILES([src/librrd.pc])
 AC_CONFIG_FILES([bindings/Makefile])
 AC_CONFIG_FILES([bindings/tcl/Makefile])
 AC_CONFIG_FILES([bindings/tcl/ifOctets.tcl])
 AC_CONFIG_FILES([Makefile])          
+AC_CONFIG_FILES([bindings/lua/Makefile])
 
 AC_CONFIG_COMMANDS([default],[[ chmod +x examples/*.pl]],[[]])
 AC_OUTPUT
@@ -748,6 +912,15 @@ echo "          Perl Options: $PERL_MAKE_OPTIONS"
 echo "          Ruby Modules: $COMP_RUBY"
 echo "           Ruby Binary: $RUBY"
 echo "          Ruby Options: $RUBY_MAKE_OPTIONS"
+echo "    Build Lua Bindings: $enable_lua"
+if test "$enable_lua" = "yes"; then
+echo "            Lua Binary: $LUA"
+echo "           Lua Version: $lua_version"
+echo "     Lua C-modules dir: $LUA_INSTALL_CMOD"
+if test "$lua_need_compat51" = "1"; then
+echo "   Lua Lua-modules dir: $LUA_INSTALL_LMOD"
+fi
+fi
 echo "    Build Tcl Bindings: $enable_tcl"
 echo " Build Python Bindings: $enable_python"
 echo "          Build rrdcgi: $enable_rrdcgi"