unistd: allow to turn off getopt_long

The GNU variant of getopt() previously had no way to turn off getopt_long() support.
2025-10-14 01:32:00 +08:00 · 2014-12-12 16:18:12 +01:00
parent d6da534cbf
commit 0676373756
10 changed files with 42 additions and 22 deletions
--- a/Makefile.in
+++ b/Makefile.in
@@ -276,7 +276,7 @@ HEADERS_RM-$(UCLIBC_HAS_GETTEXT_AWARENESS)   += libintl.h
 HEADERS_RM-$(UCLIBC_HAS_GLIBC_CUSTOM_PRINTF) += printf.h
 HEADERS_RM-$(UCLIBC_HAS_GLOB)                += glob.h
 HEADERS_RM-$(UCLIBC_HAS_GNU_ERROR)           += error.h
-HEADERS_RM-$(UCLIBC_HAS_GNU_GETOPT)$(UCLIBC_HAS_GETOPT_LONG) += getopt.h
+HEADERS_RM-$(UCLIBC_HAS_GETOPT_LONG)         += getopt.h
 HEADERS_RM-$(UCLIBC_HAS_IPV6)                += netinet/ip6.h netinet/icmp6.h
 HEADERS_RM-$(UCLIBC_HAS_BACKTRACE)           += execinfo.h
 HEADERS_RM-$(UCLIBC_HAS_LOCALE)              += iconv.h bits/uClibc_ctype.h
--- a/extra/Configs/Config.in
+++ b/extra/Configs/Config.in
@@ -1893,25 +1893,25 @@ config UCLIBC_HAS_GNU_GETOPT
 	help
 	  Answer Y if you want to include full gnu getopt() instead of a
 	  (much smaller) SUSv3 compatible getopt().
+	  Note that getopt_long, getopt_long_only as well as getsubopt
+	  are implemented on top of this choice.

 	  Most people will answer Y.

 config UCLIBC_HAS_GETOPT_LONG
-	bool "Support getopt_long/getopt_long_only"
-	depends on !UCLIBC_HAS_GNU_GETOPT
+	bool "Support getopt_long/getopt_long_only (glibc-compat)"
 	default y
 	help
-	  Answer Y if you want to include getopt_long[_only() used by many
-	  apps, even busybox.
+	  Answer Y if you want to include getopt_long[_only()] used by many
+	  apps.

 	  Most people will answer Y.

 config UCLIBC_HAS_GNU_GETSUBOPT
-	bool "Support glibc getsubopt"
+	bool "Support getsubopt"
 	default y
 	help
-	  Answer Y if you want to include glibc getsubopt() instead of a
-	  smaller SUSv3 compatible getsubopt().
+	  Answer Y if you want to include getsubopt().

 	  Most people will answer Y.
 endmenu
--- a/extra/config/conf.c
+++ b/extra/config/conf.c
@@ -10,7 +10,6 @@
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
-#include <getopt.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <errno.h>
@@ -447,7 +446,7 @@ static void check_conf(struct menu *menu)
 }

 #if 00 // || !defined __UCLIBC__ || \
-	(defined UCLIBC_HAS_GETOPT_LONG || defined UCLIBC_HAS_GNU_GETOPT)
+	defined __UCLIBC_HAS_GETOPT_LONG__
 static struct option long_opts[] = {
 	{"oldaskconfig",    no_argument,       NULL, oldaskconfig},
 	{"oldconfig",       no_argument,       NULL, oldconfig},
@@ -526,7 +525,7 @@ int main(int ac, char **av)
 	tty_stdio = isatty(0) && isatty(1) && isatty(2);

 #if 00// !defined __UCLIBC__ || \
-	(defined UCLIBC_HAS_GETOPT_LONG || defined UCLIBC_HAS_GNU_GETOPT)
+	defined __UCLIBC_HAS_GETOPT_LONG__
 	while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1)
 #else
 	char *gch = "asonymArDSld";
--- a/include/getopt.h
+++ b/include/getopt.h
@@ -1,4 +1,4 @@
-/* This file will not be installed if not using gnu getopt. */
+/* This file will not be installed if not using getopt_long. */

 #include <bits/getopt.h>

--- a/libc/sysdeps/linux/common/bits/getopt.h
+++ b/libc/sysdeps/linux/common/bits/getopt.h
@@ -126,7 +126,7 @@ extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
       __THROW;
 libc_hidden_proto(getopt)

-#if defined __UCLIBC_HAS_GNU_GETOPT__ || defined __UCLIBC_HAS_GETOPT_LONG__
+#if defined __UCLIBC_HAS_GETOPT_LONG__
 #ifndef __need_getopt
 extern int getopt_long (int ___argc, char *const *___argv,
 			const char *__shortopts,
--- a/libc/unistd/Makefile.in
+++ b/libc/unistd/Makefile.in
@@ -16,10 +16,16 @@ OMIT-$(ARCH_USE_MMU) += __exec_alloc.c
 OMIT-$(if $(UCLIBC_SUSV3_LEGACY),,y) += ualarm.c usleep.c
 #OMIT-$(UCLIBC_HAS_THREADS_NATIVE) += sleep.c

-# XXX: GNU_GETOPT comes with getopt_long unconditionally, which is wrong
-GO_LONG := $(if $(UCLIBC_HAS_GNU_GETOPT),getopt_long-simple.c)
-OMIT-y += $(if $(UCLIBC_HAS_GNU_GETOPT),getopt-susv3.c $(GO_LONG),getopt.c)
-OMIT-y += $(if $(UCLIBC_HAS_GNU_GETSUBOPT),getsubopt-susv3.c,getsubopt.c)
+ifeq ($(UCLIBC_HAS_GNU_GETOPT),y)
+# GNU getopt family
+OMIT-y += getopt-susv3.c getopt_long-simple.c getsubopt-susv3.c
+OMIT-y += $(if $(UCLIBC_HAS_GNU_GETSUBOPT),,getsubopt.c)
+else
+# SuS getopt family
+OMIT-y += getopt.c getsubopt.c
+OMIT-y += $(if $(UCLIBC_HAS_GETOPT_LONG),,getopt_long-simple.c)
+OMIT-y += $(if $(UCLIBC_HAS_GNU_GETSUBOPT),,getsubopt-susv3.c)
+endif

 CSRC-y := $(filter-out $(OMIT-y),$(CSRC-y))

--- a/libc/unistd/getopt.c
+++ b/libc/unistd/getopt.c
@@ -1162,6 +1162,7 @@ getopt (int argc, char *const *argv, const char *optstring)
 }
 libc_hidden_def(getopt)

+#if defined __UCLIBC_HAS_GETOPT_LONG__
 int
 getopt_long (int argc, char *const *argv, const char *options,
 	     const struct option *long_options, int *opt_index)
@@ -1180,5 +1181,6 @@ getopt_long_only (int argc, char *const *argv, const char *options,
 {
  return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
 }
+#endif /* __UCLIBC_HAS_GETOPT_LONG__ */

 #endif	/* Not ELIDE_CODE.  */
--- a/test/nptl/tst-cancel7.c
+++ b/test/nptl/tst-cancel7.c
@@ -196,13 +196,16 @@ do_cleanup (void)
 #define OPT_COMMAND	10000
 #define OPT_PIDFILE	10001
 #define CMDLINE_OPTIONS \
+	"c:p:"
+/*
  { "command", required_argument, NULL, OPT_COMMAND },	\
  { "pidfile", required_argument, NULL, OPT_PIDFILE },
+*/
 #define CMDLINE_PROCESS \
-  case OPT_COMMAND:	\
+  case 'c':	\
    command = optarg;	\
    break;		\
-  case OPT_PIDFILE:	\
+  case 'p':	\
    pidfile = optarg;	\
    break;
 // #define CLEANUP_HANDLER do_cleanup ()
--- a/test/nptl/tst-mqueue7.c
+++ b/test/nptl/tst-mqueue7.c
@@ -32,10 +32,12 @@
 static mqd_t after_exec = (mqd_t) -1;

 #define CMDLINE_OPTIONS \
+	"a:"
+/*
  { "after-exec", required_argument, NULL, OPT_AFTEREXEC },
-
+*/
 #define CMDLINE_PROCESS \
-  case OPT_AFTEREXEC:					\
+  case 'a':					\
    after_exec = (mqd_t) strtoul (optarg, NULL, 0);	\
    break;

--- a/test/test-skeleton.c
+++ b/test/test-skeleton.c
@@ -18,7 +18,6 @@
   <http://www.gnu.org/licenses/>.  */

 #include <errno.h>
-#include <getopt.h>
 #include <malloc.h>
 #include <search.h>
 #include <signal.h>
@@ -46,6 +45,7 @@
 #define OPT_DIRECT 1000
 #define OPT_TESTDIR 1001

+#if 0 /* Not used in uClibc */
 static struct option options[] =
 {
 #ifdef CMDLINE_OPTIONS
@@ -55,6 +55,7 @@ static struct option options[] =
  { "test-dir", required_argument, NULL, OPT_TESTDIR },
  { NULL, 0, NULL, 0 }
 };
+#endif

 /* PID of the test itself.  */
 static pid_t pid;
@@ -234,7 +235,14 @@ main (int argc, char *argv[])
  setbuf (stdout, NULL);
 #endif

+#if 0 /* Not used in uClibc */
  while ((opt = getopt_long (argc, argv, "+", options, NULL)) != -1)
+#else
+# ifndef CMDLINE_OPTIONS
+#  define CMDLINE_OPTIONS ""
+# endif
+  while ((opt = getopt (argc, argv, "+" CMDLINE_OPTIONS)) >= 0)
+#endif
    switch (opt)
      {
      case '?':