Introduce crealpath

crealpath (for "custom realpath") is a custom implementation of
realpath(3) that aims to work similarly to GNU's realpath(1). This
implementation is provided due to the following reasons:

- Future commits will require extracting an absolute path from a
  relative path, and/or process relative components from a path, such as
".." or ".".
- realpath(3) is defined by POSIX.1-2008 as a XSI extension, and
  extensions are generally avoided in this repository whenever possible.
- Additionally, realpath(3) requires the file or directory pointed to by
the path to exist, which might not always be the case for slcl.
- auth.c uses its own implementation to extract a dynamically allocated
string by repeatedly calling getcwd(3). Future commits will also
require this future, so it makes sense to keep it on a separate
component.

1 files changed, 1 insertions, 0 deletions

diff --git a/configure b/configure
index afe9057..3a6b1ce 100755
--- a/configure
+++ b/configure
@@ -96,6 +96,7 @@ OBJECTS = \
 	auth.o \
 	base64.o \
 	cftw.o \
+	crealpath.o \
 	hex.o \
 	jwt.o \
 	main.o \