[build_cmake] use MODULE on Mac OS X (fixes #1761)

add instructions in INSTALL to build using CMake and Xcode on Mac OS X
  along with MacPorts
update CMake to link test_configfile with pcre

x-ref:
  "loadable-module naming on macosx + cmake"
  https://redmine.lighttpd.net/issues/1761

INSTALL

@@ -54,3 +54,25 @@ static build using make
   $ LIGHTTPD_STATIC=yes ./configure -C --enable-static=yes
   $ make
   $ sudo make install
+
+build using CMake and Xcode on Mac OS X with MacPorts
+-----------------------------------------------------
+* upgrade to latest Mac OS X
+* install Xcode from Apple Store (requires latest Mac OS X)
+* install MacPorts from https://www.macports.org/install.php
+
+  $ xcodebuild --license
+  $ xcode-select --install
+  $ sudo port selfupdate
+  $ sudo port install autoconf automake cmake libtool m4 pcre pkgconfig zlib bzip2 openssl libxml sqlite3 openldap fcgi p5-cgi libunwind libunwind-headers mysql57 libev gdbm openldap ossp-uuid
+  # Note: some of the above require more fiddling to configure with CMake...
+
+  # cmake and build
+  # (all -DWITH_... flags below are optional)
+  $ cmake -Wno-dev -DWITH_OPENSSL=1 -DWITH_LUA=1 -DWITH_ZLIB=1 -DWITH_BZIP2=1 -DWITH_WEBDAV_PROPS=1 .
+  $ make -j 4
+  $ make test
+
+  # Note: many tests fail if not built with openssl
+  # lighttpd will not start up with tests/lighttpd.conf
+  #   (mod_secdownload fails to configure hmac-sha1 and hmac-sha256)

cmake/LighttpdMacros.cmake

@@ -5,7 +5,11 @@ macro(ADD_AND_INSTALL_LIBRARY LIBNAME SRCFILES)
 		add_library(${LIBNAME} STATIC ${SRCFILES})
 		target_link_libraries(lighttpd ${LIBNAME})
 	else()
-		add_library(${LIBNAME} SHARED ${SRCFILES})
+		if(APPLE)
+			add_library(${LIBNAME} MODULE ${SRCFILES})
+		else()
+			add_library(${LIBNAME} SHARED ${SRCFILES})
+		endif()
 		set(L_INSTALL_TARGETS ${L_INSTALL_TARGETS} ${LIBNAME})
 		## Windows likes to link it this way back to app!
 		if(WIN32)

src/CMakeLists.txt

@@ -45,6 +45,8 @@ option(BUILD_STATIC "build a static lighttpd with all modules added")
 
 if(BUILD_STATIC)
 	set(LIGHTTPD_STATIC 1)
+elseif(APPLE)
+	set(CMAKE_SHARED_MODULE_PREFIX "")
 else()
 	set(CMAKE_SHARED_LIBRARY_PREFIX "")
 endif()
@@ -221,7 +223,13 @@ else()
 endif()
 
 if(WITH_OPENSSL)
+	if(APPLE)
+		set(CMAKE_REQUIRED_INCLUDES /opt/local/include)
+	endif()
 	check_include_files(openssl/ssl.h HAVE_OPENSSL_SSL_H)
+	if(APPLE)
+		set(CMAKE_REQUIRED_INCLUDES)
+	endif()
 	if(HAVE_OPENSSL_SSL_H)
 		check_library_exists(crypto BIO_f_base64 "" HAVE_LIBCRYPTO)
 		if(HAVE_LIBCRYPTO)
@@ -599,6 +607,8 @@ if(HAVE_PCRE_H)
 	add_target_properties(mod_redirect COMPILE_FLAGS ${PCRE_CFLAGS})
 	target_link_libraries(mod_trigger_b4_dl ${PCRE_LDFLAGS})
 	add_target_properties(mod_trigger_b4_dl COMPILE_FLAGS ${PCRE_CFLAGS})
+	target_link_libraries(test_configfile ${PCRE_LDFLAGS})
+	add_target_properties(test_configfile COMPILE_FLAGS ${PCRE_CFLAGS})
 endif()
 
 target_link_libraries(mod_magnet ${LUA_LDFLAGS})
@@ -667,7 +677,9 @@ if(CMAKE_COMPILER_IS_GNUCC)
 	add_definitions(-D_GNU_SOURCE)
 endif()
 
+if((NOT APPLE) OR CMAKE_COMPILER_IS_GNUCC)
 add_target_properties(lighttpd LINK_FLAGS "-Wl,-export-dynamic")
+endif()
 
 set_target_properties(lighttpd PROPERTIES CMAKE_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})