Remove awk dependency when building using CMake. Before this awk was required

for -DWITH_MODULES option.

* build/build-modules-c.cmake:
  (generate_builtin_modules_c): Function to generate modules.c.

* CMakeLists.txt
  (): Use generate_builtin_modules_c() instead of `awk -f build/build-modules-c.awk`
  to generate modules.c file.

* README.cmake: 
  (Prerequisites, How to build): Do not mention awk as prerequisite.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1919413 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 83 insertions, 0 deletions

diff --git a/build/build-modules-c.cmake b/build/build-modules-c.cmake
new file mode 100644
index 0000000000..9d4ac6cc2d
--- /dev/null
+++ b/build/build-modules-c.cmake
@@ -0,0 +1,83 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+function(generate_builtin_modules_c output_filename module_list)
+  list(PREPEND module_list "core")
+
+  set(content "")
+
+  string(APPEND content "/*\n")
+  string(APPEND content " * modules.c --- automatically generated by Apache\n")
+  string(APPEND content " * configuration script.  DO NOT HAND EDIT!!!!!\n")
+  string(APPEND content " */\n")
+  string(APPEND content "\n")
+  string(APPEND content "#include \"ap_config.h\"\n")
+  string(APPEND content "#include \"httpd.h\"\n")
+  string(APPEND content "#include \"http_config.h\"\n")
+  string(APPEND content "\n")
+
+  foreach(module ${module_list})
+    string(APPEND content "extern module ${module}_module\;\n")
+  endforeach()
+
+  string(APPEND content "\n")
+  string(APPEND content "/*\n")
+  string(APPEND content " *  Modules which implicitly form the\n")
+  string(APPEND content " *  list of activated modules on startup,\n")
+  string(APPEND content " *  i.e. these are the modules which are\n")
+  string(APPEND content " *  initially linked into the Apache processing\n")
+  string(APPEND content " *  [extendable under run-time via AddModule]\n")
+  string(APPEND content " */\n")
+
+  string(APPEND content "AP_DECLARE_DATA module *ap_prelinked_modules[] = {\n")
+  foreach(module ${module_list})
+    string(APPEND content "  &${module}_module,\n")
+  endforeach()
+  string(APPEND content "  NULL\n")
+  string(APPEND content "}\;\n")
+
+  string(APPEND content "\n")
+  string(APPEND content "/*\n")
+  string(APPEND content " *  We need the symbols as strings for <IfModule> containers\n")
+  string(APPEND content " */\n")
+  string(APPEND content "\n")
+  string(APPEND content "ap_module_symbol_t ap_prelinked_module_symbols[] = {\n")
+
+  foreach(module ${module_list})
+    string(APPEND content "  {\"${module}_module\", &${module}_module},\n")
+  endforeach()
+
+  string(APPEND content "  {NULL, NULL}\n")
+  string(APPEND content "}\;\n")
+  string(APPEND content "\n")
+  string(APPEND content "/*\n")
+  string(APPEND content " *  Modules which initially form the\n")
+  string(APPEND content " *  list of available modules on startup,\n")
+  string(APPEND content " *  i.e. these are the modules which are\n")
+  string(APPEND content " *  initially loaded into the Apache process\n")
+  string(APPEND content " *  [extendable under run-time via LoadModule]\n")
+  string(APPEND content " */\n")
+  string(APPEND content "module *ap_preloaded_modules[] = {\n")
+
+  foreach(module ${module_list})
+    string(APPEND content "  &${module}_module,\n")
+  endforeach()
+
+  string(APPEND content "  NULL\n")
+  string(APPEND content "}\;\n")
+  string(APPEND content "\n")
+
+  file(WRITE ${output_filename} ${content})
+endfunction()