Modernize to current gettext, gnulib

* .gitignore, po/.gitignore: Revamp to match current source.
* README: Fix typo in file name.
* am/rmt.m4 (PU_RMT):
Modernize to use AC_PREPROC_IFELSE instead of AC_TRY_CPP.
* am/rmt.m4 (PU_RMT):
* configure.ac:
Modernize to use AS_HELP_STRING instead of AC_HELP_STRING.
* am/system.m4 (PU_SYSTEM):
* configure.ac:
Remove obsolescent AC_HEADER_STDC.  Use AC_CHECK_MEMBERS([struct
stat.st_blksize]) instead of AC_STRUCT_ST_BLKSIZE.
* am/system.m4 (PU_SYSTEM):
Use AC_CHECK_HEADERS_ONCE([sys/time.h]) instead of obsolescent
AC_HEADER_TIME.
* bootstrap: Sync from Gnulib.
* build-aux/bootstrap: Remove.
* bootstrap.conf: Simplify.  Don’t make m4, $source_base.
(bootstrap_post_import_hook):
New function, replacing a direct write.
* configure.ac: Remove calls to no-longer-needed macros
AC_ISC_POSIX, AM_STDBOOL_H, AC_HEADER_STDC, AC_TYPE_SIGNAL.
Modernize to use AC_COMPILE_ELSE instead of AC_TRY_COMPILE.
Remove MU_DEBUG_MODE, paxutils_GNULIB (not sure what those were from).
Fix quoting in warning
Remove Iconv code, as the iconv module should do this now.
Update Gettext version from 0.12.1 (2003) to 0.21 (2020).
Use AC_CONFIG_FILES.
All uses of corresponding C macros changed.
* gnulib.modules, paxlib.modules: Switch from gettext to gettext-h.
* paxlib.modules: Add iconv.

1 files changed, 17 insertions, 15 deletions

diff --git a/.gitignore b/.gitignore
index a353d05..85e10df 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,23 +3,25 @@
 *.lo
 *.o
 *~
-.bootstrap
 .deps
 .emacs*
-.libs
-ABOUT-NLS
+/.bootstrap
+/ABOUT-NLS
+/INSTALL
+/[0-9]*
+/aclocal.m4
+/am/.gitignore
+/autom4te.cache/
+/build-aux
+/config.h
+/config.h.in
+/config.log
+/config.status
+/configure
+/gnu/
+/gnulib/
+/m4/
+/stamp-h1
 ChangeLog
-INSTALL
 Makefile
 Makefile.in
-aclocal.m4
-autom4te.cache
-build-aux
-config.h
-config.h.in
-config.log
-config.status
-configure
-gnu
-m4
-stamp-h1