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-From: courierdavid@hotmail.com
-Newsgroups: comp.lang.awk
-Subject: Re: Compiling gawk extensions under Cygwin
-Date: 14 Mar 2005 20:47:09 -0800
-Organization: http://groups.google.com
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-
-Thanks for your help there Michael. I wouldn't have thought of that one
-myself without your help :-)
-
-Anyway - for those who must stick with Cygwin here's a method that
-works using the mingw32 makefiles and some modifications:
-
-Basically you need to extract all exportable symbol names from the
-gawk.exe file into a text file and then create a dummy library file
-which we can link against on Cygwin. You then throw the library file
-away because in reality we use the gawk.exe file as the provider of
-those functions.
-
-1. First grab the gawk source, e.g. gawk-3.1.4.tar.bz2 and decompress
-it.
-2. Move to the gawk-3.1.4 directory you just created.
-3. cp pc/* . (copy the pc directory into the main one)
-4. edit makefile - uncomment lines "DYN_FLAGS", "DYN_EXP", "DYN_OBJ"
-and "DYN_MAKEXP=$(DMEmingw32)
-5. make mingw32 (make a gawk.exe)
-6. run "gcc -o gawk.exe array.o builtin.o eval.o field.o gawkmisc.o
-io.o main.o ext.o msg.o node.o profile.o re.o version.o dlfcn.o
-gawk.exp awkgram.o getid.o popen.o getopt.o getopt1.o dfa.o regex.o
-random.o" (i.e. remove the -s from the compile command from the
-makefile so the symbols are left in gawk.exe)
-
-now export all symbols from gawk.exe into foo.def so that we can put
-these in our library
-7. echo EXPORTS > foo.def
-8. nm gawk.exe | grep -E ' [TBD] _' | sed 's/.* [TBD] _//' >> foo.def
-9. cp foo.def gawkw32.def
-
-build the new library with all symbols included
-10. make mingw32
-
-Now you will see a file "libgawk.a" which you can link against to
-create extensions. For example to build an extension called "file" run:
-
-gcc -shared -dll -DHAVE_CONFIG_H -I . extension/file.c -o file.dll -L .
--lgawk
-
-Then you can load it in gawk using the expression:
-
-extension("./file.dll", "dlload");
-
-You must use the gawk you compiled from source though. It won't work
-with any other gawk unfortunately :-( But that's OK because the
-stripped gawk is not too big in size.
-
-Cheers,
-Dave.
-
-Michael Heiming wrote:
-> In comp.lang.awk David Smith <courierdavid@hotmail.com>:
-> > Has anyone managed to compile gawk extensions (such as "filefuncs")
-> > under Cygwin?
->
-> Solution is pretty simple, install a real OS, Linux/*BSD or any
-> other unix and this and further problems won't happen.
->
-> Good luck
->
-> --
-> Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
-> mail: echo zvpunry@urvzvat.qr | perl -pe 'y/a-z/n-za-m/'
-> #bofh excuse 242: Software uses US measurements, but the OS
-> is in metric...