- Accordingly to Bruno Haible the define -DMAP_VARIABLE=MAP_PRIVATE
should become removed

- Add some more debug code for build architecture

- Update to (lib)fcall-1.13 release
* The license has been changed from GPLv2 to GPLv2+.
* Added support for the following platforms:
(Previously, a build on these platforms failed.)
- x86_64: Mac OS X 64-bit.
- x86_64: Solaris 64-bit.
- x86_64: Linux with x32 ABI: CC="gcc -mx32".
- arm: Linux 32-bit, without hardware floats.
- arm64: Linux 64-bit.
- s390x: Linux 64-bit.
- powerpc: AIX 64-bit.
- mips: IRIX 6.5 with CC="cc -32".
- sparc: Solaris 64-bit.
* Fixed support for the following platforms:
(Previously, a build on these platforms appeared to succeed but was buggy.)
- x86_64: Linux.
- arm: Linux 32-bit, with hardware floats.
- powerpc: Linux 64-bit.
- mips: Linux with CC="gcc -mabi=32".
- mips: Linux with CC="gcc -mabi=n32".
- mips: Linux with CC="gcc -mabi=64".
- mips: IRIX 6.5 with CC="gcc -mabi=n32".
- s390: Linux.
- sparc: Linux 64-bit.
- ia64: Linux.