readme updated

README.md

 libcif++
 ========
 
-This is the README file for libcif++.
+This library contains code to work with mmCIF and PDB files.
+
 
 Requirements
 ------------
@@ -12,34 +13,18 @@ have been used.
 
 Other requirements are:
 
-- A recent CCP4 environment (with the clipper libraries that have
-  electrion scattering support).
 - GNU make version 4.1 or higher.
-- Boost libraries, the current version was developed using version 1.65
+- Boost libraries, at least version 1.71
 - [mrc](https://github.com/mhekkel/mrc), a resource compiler that
   allows including data files into the executable making them easier to
   install. Strictly this is optional, but at the expense of a lot of
   functionality.
-- [newuoa-cpp](https://github.com/elsid/newuoa-cpp), required to
-  calculate atom radii.
 
 Building
 --------
 
-Make sure you install the libraries and tools in list above first
-before building. You don't have to install them in system locations,
-paths can be set as described in the next section.
-
-There are two makefiles, one located in the directory libcif++ and one
-in tools.
-
-Both makefiles will include a *make.config* file (which will be
-generated if it doesn't exist). This configuration file can be used to
-override local settings, e.g. the location of certain libraries.
+Simply configure, make and make install.
 
-Before running make, first `source` the ccp4 environment. This will
-take care of setting up the make.config file correctly. You then only
-have to edit the `ZEEP_DIR` variable to point to the correct
-directory in case you did not install libzeep, and if you use
-libzeep version 4, you will have to change `ZEEP_INCL` and `ZEEP_LIB`
-to be `$(ZEEP_DIR)/include` and `$(ZEEP_DIR)/lib` respectively.
+There's one configure flag that might be of interest: if you specify
+DEBUG=1 the make will create a debug version by default. Otherwise,
+you can run make with DEBUG=1 to create a debug version.

configure.ac

@@ -88,51 +88,6 @@ LDFLAGS="$OLD_LDFLAGS"
 LIBS="$OLD_LIBS"
 
 AX_BOOST_IOSTREAMS
-dnl AX_BOOST_FILESYSTEM
-AX_BOOST_THREAD
-
-# AC_ARG_WITH([clipper],
-# 	AS_HELP_STRING([--with-clipper=@<:@location@:>@],
-# 		[Use the clipper library as specified.
-# 		@<:@location=$CCP4@:>@]),
-# 		[
-# 			CPPFLAGS="$CPPFLAGS -I ${withval}/include"
-# 			CXXFLAGS="$CXXFLAGS -I ${withval}/include"
-# 			LDFLAGS="$LDFLAGS -L${withval}/lib"
-# 		])
-
-# AC_ARG_WITH([newuoa],
-# 	AS_HELP_STRING([--with-newuoa=@<:@location@:>@],
-# 		[Use the newuoa library as specified.]),
-# 		[
-# 			CPPFLAGS="$CPPFLAGS -I ${withval}/include"
-# 			CXXFLAGS="$CXXFLAGS -I ${withval}/include"
-# 			LDFLAGS="$LDFLAGS -L${withval}/lib"
-# 		])
-
-# AC_CHECK_HEADER(
-# 	[clipper/clipper.h],
-# 	[],
-# 	[AC_MSG_ERROR([
-# Can't find the main clipper include file clipper/clipper.h. Please
-# specify either the CCP4 location of the location of the installed
-# clipper using --with-clipper=<path>
-# ])])
-
-# AC_MSG_CHECKING([clipper version])
-# AC_COMPILE_IFELSE(
-# 	[read_test(clipper-test.cpp)],
-# 	[],
-# 	[AC_MSG_ERROR([The version of clipper is not up to date])])
-
-# AC_CHECK_HEADER(
-# 	[newuoa.h],
-# 	[],
-# 	[AC_MSG_ERROR([
-# Can't find the newuoa include file newuoa.h. Please install this
-# library and specify its location with --with-newuoa=<path>.
-# You can find newuoa at https://github.com/elsid/newuoa-cpp.git
-# ])])
 
 AX_CHECK_LIBRARY([LIBZ], [zlib.h], [z], [],
                  [AC_MSG_ERROR([libz not found - compressed files not supported])])