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William S Fulton 77853770bd Disable use of gcc poison pragmas 
Needs a rethink to avoid use of poisoned macros in system headers.
I see this on Ubuntu 16.04:

gcc -DHAVE_CONFIG_H   -I../Source/Include -I../Source/CParse
-I../Source/Include -I../Source/DOH -I../Source/CParse
-I../Source/Doxygen -I../Source/Preprocessor -I../Source/Swig
-I../Source/Modules   -g -O2 -Wall -W -pedantic -MT DOH/base.o -MD -MP
-MF $depbase.Tpo -c -o DOH/base.o DOH/base.c &&\
mv -f $depbase.Tpo $depbase.Po
In file included from /usr/include/string.h:630:0,
                 from DOH/dohint.h:21,
                 from DOH/base.c:15:
/usr/include/x86_64-linux-gnu/bits/string2.h:1282:19: error: attempt to
use poisoned "calloc"
        ? (char *) calloc ((size_t) 1, (size_t) 1)        \
                   ^
/usr/include/x86_64-linux-gnu/bits/string2.h:1284:32: error: attempt to
use poisoned "malloc"
      char *__retval = (char *) malloc (__len);       \
                                ^
/usr/include/x86_64-linux-gnu/bits/string2.h:1302:19: error: attempt to
use poisoned "calloc"
        ? (char *) calloc ((size_t) 1, (size_t) 1)        \
                   ^
/usr/include/x86_64-linux-gnu/bits/string2.h:1308:26: error: attempt to
use poisoned "malloc"
      __retval = (char *) malloc (__len);        \
                          ^
2022-03-12 23:04:24 +00:00
..
CParse Try to prevent direct use of exit(), malloc(), etc 2022-03-06 15:36:42 +13:00
DOH Disable use of gcc poison pragmas 2022-03-12 23:04:24 +00:00
Doxygen Fix typos in docs and comments 2022-02-27 18:15:46 +13:00
Include Improve typemap method and attribute checking 2022-03-03 18:46:15 +13:00
Modules Using declarations, directors and overloaded methods 2022-03-10 22:18:23 +00:00
Preprocessor Handle ) in command line interface filename 2022-03-08 18:15:18 +13:00
Swig Fix fatal error implemented by assert 2022-03-07 14:24:48 +13:00
Makefile.am Disable CFFI Common Lisp target language 2019-02-05 18:42:23 +00:00
README Remove details of long-removed directories 2021-05-16 08:42:39 +12:00

README 

SWIG Source directory

 Source/DOH          -  A core set of basic datatypes including
                        strings, lists, hashes, and files.  Used
                        extensively by the rest of SWIG.

 Source/Swig         -  Swig core. Type-system, utility functions.

 Source/Preprocessor -  SWIG C Preprocessor

 Source/CParse       -  SWIG C Parser (still messy)

 Source/Modules      -  Language modules.

 Source/Include      -  Include files.