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authorPaul Eggert <eggert@twinsun.com>2005-07-26 21:43:13 +0000
committerPaul Eggert <eggert@twinsun.com>2005-07-26 21:43:13 +0000
commit9eff9fe3e8ab53b7a8ad2c1633b0681beb3b655c (patch)
tree36f83598b89a1567622ee38b623f7888a4c2e904 /m4
parent1c9916a1f9dc944ee733f5c77db39013123da8da (diff)
downloademacs-9eff9fe3e8ab53b7a8ad2c1633b0681beb3b655c.tar.gz
Merge gnulib getopt implementation into Emacs.
* Makefile.in (AUTOCONF_INPUTS): New macro. ($(srcdir)/configure, $(srcdir)/src/stamp-h.in): Depend on it, so that these files also depend on m4/getopt.m4. * configure.in: Configure getopt by including m4/getopt.m4, and configuring a getopt replacement if necessary. * make-dist: Add m4 subdirectory. Unlink lib-src/getopt.h. * m4/getopt.m4: New file. * lib-src/Makefile.in (mostlyclean): Remove getopt.h, getopt.h-t. (GETOPT_H): New macro, from gnulib. (getopt.h): New rule, from gnulib. (GETOPTOBJS): Now autoconfigured. (GETOPTDEPS): getopt.h is now autoconfigured. (getopt.o, getopt1.o): Depend on $(GETOPT_H), not ${srcdir}/getopt.h. (getopt.o): Depend on ${srcdir}/gettext.h. (movemail.o): Depend on $(GETOPT_H). * lib-src/getopt.c, lib-src/getopt1.c: Sync from gnulib. * lib-src/getopt_.h, lib-src/getopt_int.h, lib-src/gettext.h: New files, from gnulib. * lib-src/getopt.h: Removed (now is getopt_.h). * nt/inc/gettext.h: Remove; no longer needed now that lib-src/gettext.h exists. * src/s/cygwin.h (C_SWITCH_SYSTEM): Remove, since gettext.h is now part of lib-src.
Diffstat (limited to 'm4')
-rw-r--r--m4/getopt.m478
1 files changed, 78 insertions, 0 deletions
diff --git a/m4/getopt.m4 b/m4/getopt.m4
new file mode 100644
index 00000000000..051c64905b0
--- /dev/null
+++ b/m4/getopt.m4
@@ -0,0 +1,78 @@
+# getopt.m4 serial 10
+dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# The getopt module assume you want GNU getopt, with getopt_long etc,
+# rather than vanilla POSIX getopt. This means your your code should
+# always include <getopt.h> for the getopt prototypes.
+
+AC_DEFUN([gl_GETOPT_SUBSTITUTE],
+[
+ AC_LIBOBJ([getopt])
+ AC_LIBOBJ([getopt1])
+ gl_GETOPT_SUBSTITUTE_HEADER
+ gl_PREREQ_GETOPT
+])
+
+AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER],
+[
+ GETOPT_H=getopt.h
+ AC_DEFINE([__GETOPT_PREFIX], [[rpl_]],
+ [Define to rpl_ if the getopt replacement functions and variables
+ should be used.])
+ AC_SUBST([GETOPT_H])
+])
+
+AC_DEFUN([gl_GETOPT_CHECK_HEADERS],
+[
+ GETOPT_H=
+ AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h])
+ if test -z "$GETOPT_H"; then
+ AC_CHECK_FUNCS([getopt_long_only], [], [GETOPT_H=getopt.h])
+ fi
+
+ dnl BSD getopt_long uses an incompatible method to reset option processing,
+ dnl and (as of 2004-10-15) mishandles optional option-arguments.
+ if test -z "$GETOPT_H"; then
+ AC_CHECK_DECL([optreset], [GETOPT_H=getopt.h], [], [#include <getopt.h>])
+ fi
+
+ dnl Solaris 10 getopt doesn't handle `+' as a leading character in an
+ dnl option string (as of 2005-05-05).
+ if test -z "$GETOPT_H"; then
+ AC_CACHE_CHECK([for working GNU getopt function], [gl_cv_func_gnu_getopt],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([#include <getopt.h>],
+ [[
+ char *myargv[3];
+ myargv[0] = "conftest";
+ myargv[1] = "-+";
+ myargv[2] = 0;
+ return getopt (2, myargv, "+a") != '?';
+ ]])],
+ [gl_cv_func_gnu_getopt=yes],
+ [gl_cv_func_gnu_getopt=no],
+ [dnl cross compiling - pessimistically guess based on decls
+ dnl Solaris 10 getopt doesn't handle `+' as a leading character in an
+ dnl option string (as of 2005-05-05).
+ AC_CHECK_DECL([getopt_clip],
+ [gl_cv_func_gnu_getopt=no], [gl_cv_func_gnu_getopt=yes],
+ [#include <getopt.h>])])])
+ if test "$gl_cv_func_gnu_getopt" = "no"; then
+ GETOPT_H=getopt.h
+ fi
+ fi
+])
+
+AC_DEFUN([gl_GETOPT_IFELSE],
+[
+ AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
+ AS_IF([test -n "$GETOPT_H"], [$1], [$2])
+])
+
+AC_DEFUN([gl_GETOPT], [gl_GETOPT_IFELSE([gl_GETOPT_SUBSTITUTE])])
+
+# Prerequisites of lib/getopt*.
+AC_DEFUN([gl_PREREQ_GETOPT], [:])