The behavior of the `<ctype.h>` functions is undefined for negative
arguments (other than `EOF`). In such a situation, the argument should
be cast to `unsiged char` for safety.
References:
- C Programming: A Modern Approach, 2nd Edition: page 612, chapter 23.5
* meson: allow to build with openssl
* use MD4 from openssl
* meson: use MD5 from openssl too
* meson: use SHA* functions from ssl library
* libr/hash: fix makefile when using openssl
* meson.build: fix meson build when not on git
* meson.build: make capstone a dependency
* meson.build: make r_magic library optional
* meson.build: capstone include is already in the dependency
* meson.build: use dependencies instead of manual linking + includes
* meson.build: add travis
* flag/meson.build: include sdb dependency
* travis-script: print messages based on install system
* io/meson.build: add sdb as dependency
* syscall/meson.build: missing sdb dependency
* {parse,config}/meson.build: add sdb dependency
* travis.yml: pass INSTALL_SYSTEM var to docker
* {bin/shlr}/meson.build: add sdb_dep to r2java and bin
* install meson and ninja-build in r2-travis docker
* travis.yml: allow meson build to fail for now
* anal/meson.build: add sdb and java dependencies
* egg/meson.build: add sdb dependency
* travis.yml: meson build env should be also in the includes list
* core/meson.build: add java dep
* meson.build: use dependencies also to create main r2 dependency
* rasm2/meson.build: replace link_with with dependencies
* rasm2/meson.build: add sdb as dependency
* meson.builds: convert link_with to dependencies and fix tabs
* travis-script: change meson install prefix and set PKG_CONFIG_PATH
* travis-script: add lib64 to LD_LIBRARY_PATH
* Native one if possible or using memory barrier.
* Usage in few places at the moment.
* Attempt to fix OSx linkage issue, Meson linking to utils anyway
Indent `p=`, fix r_hash_entryopy_fraction (multiplier 256 is changed to 255 to avoid ut8 overflow, avoid ERANGE when calculating log(0), scan data once instead of 256 times)
