Log Message:
Update to 1.0.6:

xcalc is a scientific calculator X11 client that can emulate a TI-30
or an HP-10C.

This minor maintenance release includes a couple years worth of build
improvements, code cleanups, and bug fixes.

Alan Coopersmith (9):
      Remove unused min & max macros from math.c
      Replace sprintf & strcpy calls with snprintf & strlcpy
      Remove redundant redeclaration of ‘factorial’
      Rename "e" arguments to "ev" to avoid shadowing e() \ 
function
      Mark functions noreturn as suggested by gcc -Wmissing-noreturn
      configure: Drop AM_MAINTAINER_MODE
      autogen.sh: Honor NOCONFIGURE=1
      Replace index() call with strchr()
      xcalc 1.0.6

Gaetan Nadon (2):
      Assume signal handlers return void, as C89 requires
      Replace signal_t with void

Stéphane Aulery (3):
      Drop CRAY support
      Use the new M_PI symbol from math.h
      Use the new M_E symbol from math.h