xgc-1.0.6-bp156.1.5

- Update to version 1.0.6
  * Update README for gitlab migration
  * Update configure.ac bug URL for gitlab migration
  * Fix spelling/wording issues
  * Trim trailing whitespace from lines
  * gitlab CI: add a basic build test
  * Use _CONST_X_STRING to make libXt declare String as const char *
  * Fix -Wformat-truncation warning
  * autogen.sh: use quoted string variables
  * autogen: add default patch prefix
  * autogen.sh: use exec instead of waiting for configure to finish

- modernize spec file (move license to licensedir)

- Update to version 1.0.5:
  * configure: Drop AM_MAINTAINER_MODE
  * autogen.sh: Honor NOCONFIGURE=1
  * Remove include of Version 7 <sys/timeb.h> header
  * configure: look for gram.c in $srcdir

- Update to version 1.0.4:
  + Bounds check value passed to WriteText.
  + config:
  - Add missing AC_CONFIG_SRCDIR.
  - Let Automake handle Lex and Yacc dist and cleaning.
  - Move man pages into their own directory.
  - Replace deprecated AM_CONFIG_HEADER with AC_CONFIG_HEADERS.
  - Replace deprecated AC_HELP_STRING with AS_HELP_STRING.
  - Replace AC_CHECK_FILE with test -f.

- Split xgc from xorg-x11. Initial version: 1.0.3.