kc3-lang/pkgconf/main.c

Branch : - branch - master - tag - pkgconf-0.1 pkgconf-0.1.1 pkgconf-0.2 pkgconf-0.3 pkgconf-0.4 pkgconf-0.5 pkgconf-0.5.1 pkgconf-0.5.2 pkgconf-0.5.3 pkgconf-0.6 pkgconf-0.7 pkgconf-0.8 pkgconf-0.8.1 pkgconf-0.8.10 pkgconf-0.8.11 pkgconf-0.8.12 pkgconf-0.8.2 pkgconf-0.8.3 pkgconf-0.8.4 pkgconf-0.8.7 pkgconf-0.8.8 pkgconf-0.8.9 pkgconf-0.9.0 pkgconf-0.9.1 pkgconf-0.9.10 pkgconf-0.9.11 pkgconf-0.9.12 pkgconf-0.9.2 pkgconf-0.9.3 pkgconf-0.9.4 pkgconf-0.9.5 pkgconf-0.9.6 pkgconf-0.9.7 pkgconf-0.9.8 pkgconf-0.9.9 pkgconf-1 pkgconf-1.0.1 pkgconf-1.1.0 pkgconf-1.2.0 pkgconf-1.3.0 pkgconf-1.3.1 pkgconf-1.3.2 pkgconf-1.3.3 pkgconf-1.3.4 pkgconf-1.3.5 pkgconf-1.3.6 pkgconf-1.3.7 pkgconf-1.3.90 pkgconf-1.4.0 pkgconf-1.4.1 pkgconf-1.4.2 pkgconf-1.5.1 pkgconf-1.5.2 pkgconf-1.5.3 pkgconf-1.5.4 pkgconf-1.6.0 pkgconf-1.6.1 pkgconf-1.6.2 pkgconf-1.6.3 pkgconf-1.7.0 pkgconf-1.7.1 pkgconf-1.7.2 pkgconf-1.7.3 pkgconf-1.7.4 pkgconf-1.8.0 pkgconf-1.9.0 pkgconf-1.9.1 pkgconf-1.9.2 pkgconf-1.9.3 pkgconf-1.9.4 pkgconf-1.9.5 pkgconf-2.0.0 pkgconf-2.0.1 pkgconf-2.0.2 pkgconf-2.0.3 pkgconf-2.1.0 pkgconf-2.1.1 pkgconf-2.2.0 pkgconf-2.3.0 pkgconf-2.4.0 pkgconf-2.4.1 pkgconf-2.4.2 pkgconf-2.4.3 pkgconf-2.5.0 pkgconf-2.5.1

• Show log

  Commit

• Author : William Pitcock
  Date : 2016-12-09 23:07:15
  Hash : d6d7ff77
  Message : main: use pkgconf_fragment_render() to render fragment lists instead of custom stuff

• main.c

• /*
   * main.c
   * main() routine, printer functions
   *
   * Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016 pkgconf authors (see AUTHORS).
   *
   * Permission to use, copy, modify, and/or distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * This software is provided 'as is' and without any warranty, express or
   * implied.  In no event shall the authors be liable for any damages arising
   * from the use of this software.
   */
  
  #include <libpkgconf/libpkgconf.h>
  #include "getopt_long.h"
  
  #define PKG_CFLAGS_ONLY_I		(((uint64_t) 1) << 2)
  #define PKG_CFLAGS_ONLY_OTHER		(((uint64_t) 1) << 3)
  #define PKG_CFLAGS			(PKG_CFLAGS_ONLY_I|PKG_CFLAGS_ONLY_OTHER)
  #define PKG_LIBS_ONLY_LDPATH		(((uint64_t) 1) << 5)
  #define PKG_LIBS_ONLY_LIBNAME		(((uint64_t) 1) << 6)
  #define PKG_LIBS_ONLY_OTHER		(((uint64_t) 1) << 7)
  #define PKG_LIBS			(PKG_LIBS_ONLY_LDPATH|PKG_LIBS_ONLY_LIBNAME|PKG_LIBS_ONLY_OTHER)
  #define PKG_MODVERSION			(((uint64_t) 1) << 8)
  #define PKG_REQUIRES			(((uint64_t) 1) << 9)
  #define PKG_REQUIRES_PRIVATE		(((uint64_t) 1) << 10)
  #define PKG_VARIABLES			(((uint64_t) 1) << 11)
  #define PKG_DIGRAPH			(((uint64_t) 1) << 12)
  #define PKG_KEEP_SYSTEM_CFLAGS		(((uint64_t) 1) << 13)
  #define PKG_KEEP_SYSTEM_LIBS		(((uint64_t) 1) << 14)
  #define PKG_VERSION			(((uint64_t) 1) << 15)
  #define PKG_ABOUT			(((uint64_t) 1) << 16)
  #define PKG_ENV_ONLY			(((uint64_t) 1) << 17)
  #define PKG_ERRORS_ON_STDOUT		(((uint64_t) 1) << 18)
  #define PKG_SILENCE_ERRORS		(((uint64_t) 1) << 19)
  #define PKG_IGNORE_CONFLICTS		(((uint64_t) 1) << 20)
  #define PKG_STATIC			(((uint64_t) 1) << 21)
  #define PKG_NO_UNINSTALLED		(((uint64_t) 1) << 22)
  #define PKG_UNINSTALLED			(((uint64_t) 1) << 23)
  #define PKG_LIST			(((uint64_t) 1) << 24)
  #define PKG_HELP			(((uint64_t) 1) << 25)
  #define PKG_PRINT_ERRORS		(((uint64_t) 1) << 26)
  #define PKG_SIMULATE			(((uint64_t) 1) << 27)
  #define PKG_NO_CACHE			(((uint64_t) 1) << 28)
  #define PKG_PROVIDES			(((uint64_t) 1) << 29)
  #define PKG_VALIDATE			(((uint64_t) 1) << 30)
  #define PKG_LIST_PACKAGE_NAMES		(((uint64_t) 1) << 31)
  #define PKG_NO_PROVIDES			(((uint64_t) 1) << 32)
  #define PKG_PURE			(((uint64_t) 1) << 33)
  
  static unsigned int global_traverse_flags = PKGCONF_PKG_PKGF_NONE;
  
  static pkgconf_client_t pkg_client;
  
  static pkgconf_list_t filter_libdirs = PKGCONF_LIST_INITIALIZER;
  static pkgconf_list_t filter_includedirs = PKGCONF_LIST_INITIALIZER;
  
  static uint64_t want_flags;
  static int maximum_traverse_depth = 2000;
  
  static char *want_variable = NULL;
  
  FILE *error_msgout = NULL;
  FILE *logfile_out = NULL;
  
  static bool
  error_handler(const char *msg)
  {
  	fprintf(error_msgout, "%s", msg);
  	return true;
  }
  
  static bool
  fragment_has_system_dir(const pkgconf_fragment_t *frag)
  {
  	int check_flags = 0;
  	pkgconf_list_t *check_paths = NULL;
  
  	switch (frag->type)
  	{
  	case 'L':
  		check_flags = PKG_KEEP_SYSTEM_LIBS;
  		check_paths = &filter_libdirs;
  		break;
  	case 'I':
  		check_flags = PKG_KEEP_SYSTEM_CFLAGS;
  		check_paths = &filter_includedirs;
  		break;
  	default:
  		return false;
  	}
  
  	if ((want_flags & check_flags) == 0)
  		return false;
  
  	return pkgconf_path_match_list(frag->data, check_paths);
  }
  
  static bool
  print_list_entry(const pkgconf_pkg_t *entry, void *data)
  {
  	(void) data;
  
  	if (entry->flags & PKGCONF_PKG_PROPF_UNINSTALLED)
  		return false;
  
  	printf("%-30s %s - %s\n", entry->id, entry->realname, entry->description);
  
  	return false;
  }
  
  static bool
  print_package_entry(const pkgconf_pkg_t *entry, void *data)
  {
  	(void) data;
  
  	if (entry->flags & PKGCONF_PKG_PROPF_UNINSTALLED)
  		return false;
  
  	printf("%s\n", entry->id);
  
  	return false;
  }
  
  static bool
  filter_cflags(const pkgconf_client_t *client, const pkgconf_fragment_t *frag, unsigned int flags)
  {
  	int got_flags = 0;
  	(void) client;
  	(void) flags;
  
  	if (fragment_has_system_dir(frag))
  		return false;
  
  	if (frag->type == 'I')
  		got_flags = PKG_CFLAGS_ONLY_I;
  	else
  		got_flags = PKG_CFLAGS_ONLY_OTHER;
  
  	return (want_flags & got_flags) != 0;
  }
  
  static bool
  filter_libs(const pkgconf_client_t *client, const pkgconf_fragment_t *frag, unsigned int flags)
  {
  	int got_flags = 0;
  	(void) client;
  	(void) flags;
  
  	if (fragment_has_system_dir(frag))
  		return false;
  
  	switch (frag->type)
  	{
  		case 'L': got_flags = PKG_LIBS_ONLY_LDPATH; break;
  		case 'l': got_flags = PKG_LIBS_ONLY_LIBNAME; break;
  		default: got_flags = PKG_LIBS_ONLY_OTHER; break;
  	}
  
  	return (want_flags & got_flags) != 0;
  }
  
  static void
  print_modversion(pkgconf_client_t *client, pkgconf_pkg_t *pkg, void *unused, unsigned int flags)
  {
  	(void) client;
  	(void) unused;
  	(void) flags;
  
  	if (pkg->version != NULL)
  		printf("%s\n", pkg->version);
  }
  
  static void
  print_variables(pkgconf_client_t *client, pkgconf_pkg_t *pkg, void *unused, unsigned int flags)
  {
  	pkgconf_node_t *node;
  	(void) client;
  	(void) unused;
  	(void) flags;
  
  	PKGCONF_FOREACH_LIST_ENTRY(pkg->vars.head, node)
  	{
  		pkgconf_tuple_t *tuple = node->data;
  
  		printf("%s\n", tuple->key);
  	}
  }
  
  static void
  print_requires(pkgconf_pkg_t *pkg)
  {
  	pkgconf_node_t *node;
  
  	PKGCONF_FOREACH_LIST_ENTRY(pkg->requires.head, node)
  	{
  		pkgconf_dependency_t *dep = node->data;
  
  		printf("%s", dep->package);
  
  		if (dep->version != NULL)
  			printf(" %s %s", pkgconf_pkg_get_comparator(dep), dep->version);
  
  		printf("\n");
  	}
  }
  
  static void
  print_requires_private(pkgconf_pkg_t *pkg)
  {
  	pkgconf_node_t *node;
  
  	PKGCONF_FOREACH_LIST_ENTRY(pkg->requires_private.head, node)
  	{
  		pkgconf_dependency_t *dep = node->data;
  
  		printf("%s", dep->package);
  
  		if (dep->version != NULL)
  			printf(" %s %s", pkgconf_pkg_get_comparator(dep), dep->version);
  
  		printf("\n");
  	}
  }
  
  static void
  print_provides(pkgconf_pkg_t *pkg)
  {
  	pkgconf_node_t *node;
  
  	PKGCONF_FOREACH_LIST_ENTRY(pkg->provides.head, node)
  	{
  		pkgconf_dependency_t *dep = node->data;
  
  		printf("%s", dep->package);
  
  		if (dep->version != NULL)
  			printf(" %s %s", pkgconf_pkg_get_comparator(dep), dep->version);
  
  		printf("\n");
  	}
  }
  
  static bool
  apply_provides(pkgconf_client_t *client, pkgconf_pkg_t *world, void *unused, int maxdepth, unsigned int flags)
  {
  	pkgconf_node_t *iter;
  	(void) unused;
  	(void) maxdepth;
  
  	PKGCONF_FOREACH_LIST_ENTRY(world->requires.head, iter)
  	{
  		pkgconf_pkg_t *pkg;
  		pkgconf_dependency_t *dep = iter->data;
  
  		pkg = pkgconf_pkg_verify_dependency(client, dep, flags, NULL);
  		print_provides(pkg);
  
  		pkgconf_pkg_free(&pkg_client, pkg);
  	}
  
  	return true;
  }
  
  static void
  print_digraph_node(pkgconf_client_t *client, pkgconf_pkg_t *pkg, void *unused, unsigned int flags)
  {
  	pkgconf_node_t *node;
  	(void) client;
  	(void) unused;
  	(void) flags;
  
  	printf("\"%s\" [fontname=Sans fontsize=8]\n", pkg->id);
  
  	PKGCONF_FOREACH_LIST_ENTRY(pkg->requires.head, node)
  	{
  		pkgconf_dependency_t *dep = node->data;
  
  		printf("\"%s\" -- \"%s\" [fontname=Sans fontsize=8]\n", dep->package, pkg->id);
  	}
  }
  
  static bool
  apply_digraph(pkgconf_client_t *client, pkgconf_pkg_t *world, void *unused, int maxdepth, unsigned int flags)
  {
  	int eflag;
  
  	printf("graph deptree {\n");
  	printf("edge [color=blue len=7.5 fontname=Sans fontsize=8]\n");
  	printf("node [fontname=Sans fontsize=8]\n");
  
  	eflag = pkgconf_pkg_traverse(client, world, print_digraph_node, unused, maxdepth, flags);
  
  	if (eflag != PKGCONF_PKG_ERRF_OK)
  		return false;
  
  	printf("}\n");
  	return true;
  }
  
  static bool
  apply_modversion(pkgconf_client_t *client, pkgconf_pkg_t *world, void *unused, int maxdepth, unsigned int flags)
  {
  	int eflag;
  
  	eflag = pkgconf_pkg_traverse(client, world, print_modversion, unused, maxdepth, flags);
  
  	if (eflag != PKGCONF_PKG_ERRF_OK)
  		return false;
  
  	return true;
  }
  
  static bool
  apply_variables(pkgconf_client_t *client, pkgconf_pkg_t *world, void *unused, int maxdepth, unsigned int flags)
  {
  	int eflag;
  
  	eflag = pkgconf_pkg_traverse(client, world, print_variables, unused, maxdepth, flags);
  
  	if (eflag != PKGCONF_PKG_ERRF_OK)
  		return false;
  
  	return true;
  }
  
  typedef struct {
  	const char *variable;
  	char buf[PKGCONF_BUFSIZE];
  } var_request_t;
  
  static void
  print_variable(pkgconf_client_t *client, pkgconf_pkg_t *pkg, void *data, unsigned int flags)
  {
  	var_request_t *req = data;
  	const char *var;
  	(void) flags;
  
  	var = pkgconf_tuple_find(client, &pkg->vars, req->variable);
  	if (var != NULL)
  	{
  		if (*(req->buf) == '\0')
  		{
  			strlcpy(req->buf, var, sizeof(req->buf));
  			return;
  		}
  
  		strlcat(req->buf, " ", sizeof(req->buf));
  		strlcat(req->buf, var, sizeof(req->buf));
  	}
  }
  
  static bool
  apply_variable(pkgconf_client_t *client, pkgconf_pkg_t *world, void *variable, int maxdepth, unsigned int flags)
  {
  	int eflag;
  
  	var_request_t req = {
  		.variable = variable,
  	};
  
  	*req.buf = '\0';
  
  	eflag = pkgconf_pkg_traverse(client, world, print_variable, &req, maxdepth, flags);
  	if (eflag != PKGCONF_PKG_ERRF_OK)
  		return false;
  
  	printf("%s\n", req.buf);
  	return true;
  }
  
  static bool
  apply_cflags(pkgconf_client_t *client, pkgconf_pkg_t *world, void *unused, int maxdepth, unsigned int flags)
  {
  	pkgconf_list_t unfiltered_list = PKGCONF_LIST_INITIALIZER;
  	pkgconf_list_t filtered_list = PKGCONF_LIST_INITIALIZER;
  	int eflag;
  	char *render_buf;
  	(void) unused;
  
  	eflag = pkgconf_pkg_cflags(client, world, &unfiltered_list, maxdepth, flags | PKGCONF_PKG_PKGF_SEARCH_PRIVATE);
  	if (eflag != PKGCONF_PKG_ERRF_OK)
  		return false;
  
  	pkgconf_fragment_filter(client, &filtered_list, &unfiltered_list, filter_cflags, flags);
  
  	if (filtered_list.head == NULL)
  		return true;
  
  	render_buf = pkgconf_fragment_render(&filtered_list);
  	printf("%s", render_buf);
  	free(render_buf);
  
  	pkgconf_fragment_free(&unfiltered_list);
  	pkgconf_fragment_free(&filtered_list);
  
  	return true;
  }
  
  static bool
  apply_libs(pkgconf_client_t *client, pkgconf_pkg_t *world, void *unused, int maxdepth, unsigned int flags)
  {
  	pkgconf_list_t unfiltered_list = PKGCONF_LIST_INITIALIZER;
  	pkgconf_list_t filtered_list = PKGCONF_LIST_INITIALIZER;
  	int eflag;
  	char *render_buf;
  	(void) unused;
  
  	eflag = pkgconf_pkg_libs(client, world, &unfiltered_list, maxdepth, flags);
  	if (eflag != PKGCONF_PKG_ERRF_OK)
  		return false;
  
  	pkgconf_fragment_filter(client, &filtered_list, &unfiltered_list, filter_libs, flags);
  
  	if (filtered_list.head == NULL)
  		return true;
  
  	render_buf = pkgconf_fragment_render(&filtered_list);
  	printf("%s", render_buf);
  	free(render_buf);
  
  	pkgconf_fragment_free(&unfiltered_list);
  	pkgconf_fragment_free(&filtered_list);
  
  	return true;
  }
  
  static bool
  apply_requires(pkgconf_client_t *client, pkgconf_pkg_t *world, void *unused, int maxdepth, unsigned int flags)
  {
  	pkgconf_node_t *iter;
  	(void) unused;
  	(void) maxdepth;
  
  	PKGCONF_FOREACH_LIST_ENTRY(world->requires.head, iter)
  	{
  		pkgconf_pkg_t *pkg;
  		pkgconf_dependency_t *dep = iter->data;
  
  		pkg = pkgconf_pkg_verify_dependency(client, dep, flags, NULL);
  		print_requires(pkg);
  
  		pkgconf_pkg_free(&pkg_client, pkg);
  	}
  
  	return true;
  }
  
  static bool
  apply_requires_private(pkgconf_client_t *client, pkgconf_pkg_t *world, void *unused, int maxdepth, unsigned int flags)
  {
  	pkgconf_node_t *iter;
  	(void) unused;
  	(void) maxdepth;
  
  	PKGCONF_FOREACH_LIST_ENTRY(world->requires.head, iter)
  	{
  		pkgconf_pkg_t *pkg;
  		pkgconf_dependency_t *dep = iter->data;
  
  		pkg = pkgconf_pkg_verify_dependency(client, dep, flags | PKGCONF_PKG_PKGF_SEARCH_PRIVATE, NULL);
  		print_requires_private(pkg);
  
  		pkgconf_pkg_free(&pkg_client, pkg);
  	}
  	return true;
  }
  
  static void
  check_uninstalled(pkgconf_client_t *client, pkgconf_pkg_t *pkg, void *data, unsigned int flags)
  {
  	int *retval = data;
  	(void) client;
  	(void) flags;
  
  	if (pkg->flags & PKGCONF_PKG_PROPF_UNINSTALLED)
  		*retval = EXIT_SUCCESS;
  }
  
  static bool
  apply_uninstalled(pkgconf_client_t *client, pkgconf_pkg_t *world, void *data, int maxdepth, unsigned int flags)
  {
  	int eflag;
  
  	eflag = pkgconf_pkg_traverse(client, world, check_uninstalled, data, maxdepth, flags);
  
  	if (eflag != PKGCONF_PKG_ERRF_OK)
  		return false;
  
  	return true;
  }
  
  static void
  print_graph_node(pkgconf_client_t *client, pkgconf_pkg_t *pkg, void *data, unsigned int flags)
  {
  	pkgconf_node_t *n;
  
  	(void) client;
  	(void) data;
  	(void) flags;
  
  	printf("node '%s' {\n", pkg->id);
  
  	if (pkg->version != NULL)
  		printf("    version = '%s';\n", pkg->version);
  
  	PKGCONF_FOREACH_LIST_ENTRY(pkg->requires.head, n)
  	{
  		pkgconf_dependency_t *dep = n->data;
  		printf("    dependency '%s'", dep->package);
  		if (dep->compare != PKGCONF_CMP_ANY)
  		{
  			printf(" {\n");
  			printf("        comparator = '%s';\n", pkgconf_pkg_get_comparator(dep));
  			printf("        version = '%s';\n", dep->version);
  			printf("    };\n");
  		}
  		else
  			printf(";\n");
  	}
  
  	printf("};\n");
  }
  
  static bool
  apply_simulate(pkgconf_client_t *client, pkgconf_pkg_t *world, void *data, int maxdepth, unsigned int flags)
  {
  	int eflag;
  
  	eflag = pkgconf_pkg_traverse(client, world, print_graph_node, data, maxdepth, flags);
  
  	if (eflag != PKGCONF_PKG_ERRF_OK)
  		return false;
  
  	return true;
  }
  
  static void
  version(void)
  {
  	printf("%s\n", PACKAGE_VERSION);
  }
  
  static void
  about(void)
  {
  	printf("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
  	printf("Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016 pkgconf authors (see AUTHORS in documentation directory).\n\n");
  	printf("Permission to use, copy, modify, and/or distribute this software for any\n");
  	printf("purpose with or without fee is hereby granted, provided that the above\n");
  	printf("copyright notice and this permission notice appear in all copies.\n\n");
  	printf("This software is provided 'as is' and without any warranty, express or\n");
  	printf("implied.  In no event shall the authors be liable for any damages arising\n");
  	printf("from the use of this software.\n\n");
  	printf("Report bugs at <%s>.\n", PACKAGE_BUGREPORT);
  }
  
  static void
  usage(void)
  {
  	printf("usage: %s [OPTIONS] [LIBRARIES]\n", PACKAGE_NAME);
  
  	printf("\nbasic options:\n\n");
  
  	printf("  --help                            this message\n");
  	printf("  --about                           print pkgconf version and license to stdout\n");
  	printf("  --version                         print supported pkg-config version to stdout\n");
  	printf("  --atleast-pkgconfig-version       check whether or not pkgconf is compatible\n");
  	printf("                                    with a specified pkg-config version\n");
  	printf("  --errors-to-stdout                print all errors on stdout instead of stderr\n");
  	printf("  --silence-errors                  explicitly be silent about errors\n");
  	printf("  --list-all                        list all known packages\n");
  	printf("  --list-package-names              list all known package names\n");
  	printf("  --simulate                        simulate walking the calculated dependency graph\n");
  	printf("  --no-cache                        do not cache already seen packages when\n");
  	printf("                                    walking the dependency graph\n");
  	printf("  --log-file=filename               write an audit log to a specified file\n");
  
  	printf("\nchecking specific pkg-config database entries:\n\n");
  
  	printf("  --atleast-version                 require a specific version of a module\n");
  	printf("  --exact-version                   require an exact version of a module\n");
  	printf("  --max-version                     require a maximum version of a module\n");
  	printf("  --exists                          check whether or not a module exists\n");
  	printf("  --uninstalled                     check whether or not an uninstalled module will be used\n");
  	printf("  --no-uninstalled                  never use uninstalled modules when satisfying dependencies\n");
  	printf("  --no-provides                     do not use 'provides' rules to resolve dependencies\n");
  	printf("  --maximum-traverse-depth          maximum allowed depth for dependency graph\n");
  	printf("  --static                          be more aggressive when computing dependency graph\n");
  	printf("                                    (for static linking)\n");
  	printf("  --pure                            optimize a static dependency graph as if it were a normal\n");
  	printf("                                    dependency graph\n");
  	printf("  --env-only                        look only for package entries in PKG_CONFIG_PATH\n");
  	printf("  --ignore-conflicts                ignore 'conflicts' rules in modules\n");
  	printf("  --validate                        validate specific .pc files for correctness\n");
  
  	printf("\nquerying specific pkg-config database fields:\n\n");
  
  	printf("  --define-variable=varname=value   define variable 'varname' as 'value'\n");
  	printf("  --variable=varname                print specified variable entry to stdout\n");
  	printf("  --cflags                          print required CFLAGS to stdout\n");
  	printf("  --cflags-only-I                   print required include-dir CFLAGS to stdout\n");
  	printf("  --cflags-only-other               print required non-include-dir CFLAGS to stdout\n");
  	printf("  --libs                            print required linker flags to stdout\n");
  	printf("  --libs-only-L                     print required LDPATH linker flags to stdout\n");
  	printf("  --libs-only-l                     print required LIBNAME linker flags to stdout\n");
  	printf("  --libs-only-other                 print required other linker flags to stdout\n");
  	printf("  --print-requires                  print required dependency frameworks to stdout\n");
  	printf("  --print-requires-private          print required dependency frameworks for static\n");
  	printf("                                    linking to stdout\n");
  	printf("  --print-provides                  print provided dependencies to stdout\n");
  	printf("  --print-variables                 print all known variables in module to stdout\n");
  	printf("  --digraph                         print entire dependency graph in graphviz 'dot' format\n");
  	printf("  --keep-system-cflags              keep -I%s entries in cflags output\n", SYSTEM_INCLUDEDIR);
  	printf("  --keep-system-libs                keep -L%s entries in libs output\n", SYSTEM_LIBDIR);
  
  	printf("\nreport bugs to <%s>.\n", PACKAGE_BUGREPORT);
  }
  
  int
  main(int argc, char *argv[])
  {
  	int ret;
  	pkgconf_list_t pkgq = PKGCONF_LIST_INITIALIZER;
  	char *builddir;
  	char *sysroot_dir;
  	char *required_pkgconfig_version = NULL;
  	char *required_exact_module_version = NULL;
  	char *required_max_module_version = NULL;
  	char *required_module_version = NULL;
  	char *logfile_arg = NULL;
  
  	want_flags = 0;
  
  	struct pkg_option options[] = {
  		{ "version", no_argument, &want_flags, PKG_VERSION|PKG_PRINT_ERRORS, },
  		{ "about", no_argument, &want_flags, PKG_ABOUT|PKG_PRINT_ERRORS, },
  		{ "atleast-version", required_argument, NULL, 2, },
  		{ "atleast-pkgconfig-version", required_argument, NULL, 3, },
  		{ "libs", no_argument, &want_flags, PKG_LIBS|PKG_PRINT_ERRORS, },
  		{ "cflags", no_argument, &want_flags, PKG_CFLAGS|PKG_PRINT_ERRORS, },
  		{ "modversion", no_argument, &want_flags, PKG_MODVERSION|PKG_PRINT_ERRORS, },
  		{ "variable", required_argument, NULL, 7, },
  		{ "exists", no_argument, NULL, 8, },
  		{ "print-errors", no_argument, &want_flags, PKG_PRINT_ERRORS, },
  		{ "short-errors", no_argument, NULL, 10, },
  		{ "maximum-traverse-depth", required_argument, NULL, 11, },
  		{ "static", no_argument, &want_flags, PKG_STATIC, },
  		{ "pure", no_argument, &want_flags, PKG_PURE, },
  		{ "print-requires", no_argument, &want_flags, PKG_REQUIRES, },
  		{ "print-variables", no_argument, &want_flags, PKG_VARIABLES|PKG_PRINT_ERRORS, },
  		{ "digraph", no_argument, &want_flags, PKG_DIGRAPH, },
  		{ "help", no_argument, &want_flags, PKG_HELP, },
  		{ "env-only", no_argument, &want_flags, PKG_ENV_ONLY, },
  		{ "print-requires-private", no_argument, &want_flags, PKG_REQUIRES_PRIVATE, },
  		{ "cflags-only-I", no_argument, &want_flags, PKG_CFLAGS_ONLY_I|PKG_PRINT_ERRORS, },
  		{ "cflags-only-other", no_argument, &want_flags, PKG_CFLAGS_ONLY_OTHER|PKG_PRINT_ERRORS, },
  		{ "libs-only-L", no_argument, &want_flags, PKG_LIBS_ONLY_LDPATH|PKG_PRINT_ERRORS, },
  		{ "libs-only-l", no_argument, &want_flags, PKG_LIBS_ONLY_LIBNAME|PKG_PRINT_ERRORS, },
  		{ "libs-only-other", no_argument, &want_flags, PKG_LIBS_ONLY_OTHER|PKG_PRINT_ERRORS, },
  		{ "uninstalled", no_argument, &want_flags, PKG_UNINSTALLED, },
  		{ "no-uninstalled", no_argument, &want_flags, PKG_NO_UNINSTALLED, },
  		{ "keep-system-cflags", no_argument, &want_flags, PKG_KEEP_SYSTEM_CFLAGS, },
  		{ "keep-system-libs", no_argument, &want_flags, PKG_KEEP_SYSTEM_LIBS, },
  		{ "define-variable", required_argument, NULL, 27, },
  		{ "exact-version", required_argument, NULL, 28, },
  		{ "max-version", required_argument, NULL, 29, },
  		{ "ignore-conflicts", no_argument, &want_flags, PKG_IGNORE_CONFLICTS, },
  		{ "errors-to-stdout", no_argument, &want_flags, PKG_ERRORS_ON_STDOUT, },
  		{ "silence-errors", no_argument, &want_flags, PKG_SILENCE_ERRORS, },
  		{ "list-all", no_argument, &want_flags, PKG_LIST|PKG_PRINT_ERRORS, },
  		{ "list-package-names", no_argument, &want_flags, PKG_LIST_PACKAGE_NAMES|PKG_PRINT_ERRORS, },
  		{ "simulate", no_argument, &want_flags, PKG_SIMULATE, },
  		{ "no-cache", no_argument, &want_flags, PKG_NO_CACHE, },
  		{ "print-provides", no_argument, &want_flags, PKG_PROVIDES, },
  		{ "no-provides", no_argument, &want_flags, PKG_NO_PROVIDES, },
  		{ "debug", no_argument, &want_flags, 0, },
  		{ "validate", no_argument, NULL, 0 },
  		{ "log-file", required_argument, NULL, 40 },
  		{ NULL, 0, NULL, 0 }
  	};
  
  	pkgconf_client_init(&pkg_client, error_handler);
  	pkgconf_path_build_from_environ("PKG_CONFIG_SYSTEM_LIBRARY_PATH", SYSTEM_LIBDIR, &filter_libdirs);
  	pkgconf_path_build_from_environ("PKG_CONFIG_SYSTEM_INCLUDE_PATH", SYSTEM_INCLUDEDIR, &filter_includedirs);
  
  	while ((ret = pkg_getopt_long_only(argc, argv, "", options, NULL)) != -1)
  	{
  		switch (ret)
  		{
  		case 2:
  			required_module_version = pkg_optarg;
  			break;
  		case 3:
  			required_pkgconfig_version = pkg_optarg;
  			break;
  		case 7:
  			want_variable = pkg_optarg;
  			break;
  		case 11:
  			maximum_traverse_depth = atoi(pkg_optarg);
  			break;
  		case 27:
  			pkgconf_tuple_define_global(&pkg_client, pkg_optarg);
  			break;
  		case 28:
  			required_exact_module_version = pkg_optarg;
  			break;
  		case 29:
  			required_max_module_version = pkg_optarg;
  			break;
  		case 40:
  			logfile_arg = pkg_optarg;
  			break;
  		case '?':
  		case ':':
  			return EXIT_FAILURE;
  			break;
  		default:
  			break;
  		}
  	}
  
  	if ((want_flags & PKG_PRINT_ERRORS) != PKG_PRINT_ERRORS)
  		want_flags |= (PKG_SILENCE_ERRORS);
  
  	if ((want_flags & PKG_SILENCE_ERRORS) == PKG_SILENCE_ERRORS && !getenv("PKG_CONFIG_DEBUG_SPEW"))
  		want_flags |= (PKG_SILENCE_ERRORS);
  	else
  		want_flags &= ~(PKG_SILENCE_ERRORS);
  
  	if ((want_flags & PKG_ABOUT) == PKG_ABOUT)
  	{
  		about();
  		return EXIT_SUCCESS;
  	}
  
  	if ((want_flags & PKG_VERSION) == PKG_VERSION)
  	{
  		if (argc > 2)
  		{
  			fprintf(stderr, "%s: --version specified with other options or module names, assuming --modversion.\n", argv[0]);
  
  			want_flags &= ~PKG_VERSION;
  			want_flags |= PKG_MODVERSION;
  		}
  		else
  		{
  			version();
  			return EXIT_SUCCESS;
  		}
  	}
  
  	if ((want_flags & PKG_HELP) == PKG_HELP)
  	{
  		usage();
  		return EXIT_SUCCESS;
  	}
  
  	error_msgout = stderr;
  	if ((want_flags & PKG_ERRORS_ON_STDOUT) == PKG_ERRORS_ON_STDOUT)
  		error_msgout = stdout;
  	if ((want_flags & PKG_SILENCE_ERRORS) == PKG_SILENCE_ERRORS)
  		error_msgout = fopen(PATH_DEV_NULL, "w");
  
  	if ((want_flags & PKG_IGNORE_CONFLICTS) == PKG_IGNORE_CONFLICTS || getenv("PKG_CONFIG_IGNORE_CONFLICTS") != NULL)
  		global_traverse_flags |= PKGCONF_PKG_PKGF_SKIP_CONFLICTS;
  
  	if ((want_flags & PKG_STATIC) == PKG_STATIC)
  		global_traverse_flags |= (PKGCONF_PKG_PKGF_SEARCH_PRIVATE | PKGCONF_PKG_PKGF_MERGE_PRIVATE_FRAGMENTS);
  
  	/* if --static and --pure are both specified, then disable merge-back.
  	 * this allows for a --static which searches private modules, but has the same fragment behaviour as if
  	 * --static were disabled.  see <https://github.com/pkgconf/pkgconf/issues/83> for rationale.
  	 */
  	if ((want_flags & PKG_PURE) == PKG_PURE || getenv("PKG_CONFIG_PURE_DEPGRAPH") != NULL)
  		global_traverse_flags &= ~PKGCONF_PKG_PKGF_MERGE_PRIVATE_FRAGMENTS;
  
  	if ((want_flags & PKG_ENV_ONLY) == PKG_ENV_ONLY)
  		global_traverse_flags |= PKGCONF_PKG_PKGF_ENV_ONLY;
  
  	if ((want_flags & PKG_NO_CACHE) == PKG_NO_CACHE)
  		global_traverse_flags |= PKGCONF_PKG_PKGF_NO_CACHE;
  
  	if ((want_flags & PKG_NO_UNINSTALLED) == PKG_NO_UNINSTALLED || getenv("PKG_CONFIG_DISABLE_UNINSTALLED") != NULL)
  		global_traverse_flags |= PKGCONF_PKG_PKGF_NO_UNINSTALLED;
  
  	if ((want_flags & PKG_NO_PROVIDES) == PKG_NO_PROVIDES)
  		global_traverse_flags |= PKGCONF_PKG_PKGF_SKIP_PROVIDES;
  
  	if (getenv("PKG_CONFIG_ALLOW_SYSTEM_CFLAGS") != NULL)
  		want_flags |= PKG_KEEP_SYSTEM_CFLAGS;
  
  	if (getenv("PKG_CONFIG_ALLOW_SYSTEM_LIBS") != NULL)
  		want_flags |= PKG_KEEP_SYSTEM_LIBS;
  
  	if ((builddir = getenv("PKG_CONFIG_TOP_BUILD_DIR")) != NULL)
  		pkgconf_client_set_buildroot_dir(&pkg_client, builddir);
  
  	if ((sysroot_dir = getenv("PKG_CONFIG_SYSROOT_DIR")) != NULL)
  		pkgconf_client_set_sysroot_dir(&pkg_client, sysroot_dir);
  
  	/* at this point, global_traverse_flags should be set, so build the dir list */
  	pkgconf_pkg_dir_list_build(&pkg_client, global_traverse_flags);
  
  	if (required_pkgconfig_version != NULL)
  	{
  		if (pkgconf_compare_version(PACKAGE_VERSION, required_pkgconfig_version) >= 0)
  			return EXIT_SUCCESS;
  
  		return EXIT_FAILURE;
  	}
  
  	if ((want_flags & PKG_LIST) == PKG_LIST)
  	{
  		pkgconf_scan_all(&pkg_client, NULL, print_list_entry);
  		return EXIT_SUCCESS;
  	}
  
  	if ((want_flags & PKG_LIST_PACKAGE_NAMES) == PKG_LIST_PACKAGE_NAMES)
  	{
  		pkgconf_scan_all(&pkg_client, NULL, print_package_entry);
  		return EXIT_SUCCESS;
  	}
  
  	if (logfile_arg == NULL)
  		logfile_arg = getenv("PKG_CONFIG_LOG");
  
  	if (logfile_arg != NULL)
  	{
  		logfile_out = fopen(logfile_arg, "w");
  		pkgconf_audit_set_log(&pkg_client, logfile_out);
  	}
  
  	if (required_module_version != NULL)
  	{
  		pkgconf_pkg_t *pkg;
  		pkgconf_node_t *node;
  		pkgconf_list_t deplist = PKGCONF_LIST_INITIALIZER;
  
  		while (argv[pkg_optind])
  		{
  			pkgconf_dependency_parse_str(&deplist, argv[pkg_optind]);
  			pkg_optind++;
  		}
  
  		PKGCONF_FOREACH_LIST_ENTRY(deplist.head, node)
  		{
  			pkgconf_dependency_t *pkgiter = node->data;
  
  			pkg = pkgconf_pkg_find(&pkg_client, pkgiter->package, global_traverse_flags);
  			if (pkg == NULL)
  				return EXIT_FAILURE;
  
  			if (pkgconf_compare_version(pkg->version, required_module_version) >= 0)
  				return EXIT_SUCCESS;
  		}
  
  		return EXIT_FAILURE;
  	}
  
  	if (required_exact_module_version != NULL)
  	{
  		pkgconf_pkg_t *pkg;
  		pkgconf_node_t *node;
  		pkgconf_list_t deplist = PKGCONF_LIST_INITIALIZER;
  
  		while (argv[pkg_optind])
  		{
  			pkgconf_dependency_parse_str(&deplist, argv[pkg_optind]);
  			pkg_optind++;
  		}
  
  		PKGCONF_FOREACH_LIST_ENTRY(deplist.head, node)
  		{
  			pkgconf_dependency_t *pkgiter = node->data;
  
  			pkg = pkgconf_pkg_find(&pkg_client, pkgiter->package, global_traverse_flags);
  			if (pkg == NULL)
  				return EXIT_FAILURE;
  
  			if (pkgconf_compare_version(pkg->version, required_exact_module_version) == 0)
  				return EXIT_SUCCESS;
  		}
  
  		return EXIT_FAILURE;
  	}
  
  	if (required_max_module_version != NULL)
  	{
  		pkgconf_pkg_t *pkg;
  		pkgconf_node_t *node;
  		pkgconf_list_t deplist = PKGCONF_LIST_INITIALIZER;
  
  		while (argv[pkg_optind])
  		{
  			pkgconf_dependency_parse_str(&deplist, argv[pkg_optind]);
  			pkg_optind++;
  		}
  
  		PKGCONF_FOREACH_LIST_ENTRY(deplist.head, node)
  		{
  			pkgconf_dependency_t *pkgiter = node->data;
  
  			pkg = pkgconf_pkg_find(&pkg_client, pkgiter->package, global_traverse_flags);
  			if (pkg == NULL)
  				return EXIT_FAILURE;
  
  			if (pkgconf_compare_version(pkg->version, required_max_module_version) <= 0)
  				return EXIT_SUCCESS;
  		}
  
  		return EXIT_FAILURE;
  	}
  
  	while (1)
  	{
  		const char *package = argv[pkg_optind];
  
  		if (package == NULL)
  			break;
  
  		while (isspace((unsigned int)package[0]))
  			package++;
  
  		/* skip empty packages */
  		if (package[0] == '\0') {
  			pkg_optind++;
  			continue;
  		}
  
  		if (argv[pkg_optind + 1] == NULL || !PKGCONF_IS_OPERATOR_CHAR(*(argv[pkg_optind + 1])))
  		{
  			pkgconf_queue_push(&pkgq, package);
  			pkg_optind++;
  		}
  		else
  		{
  			char packagebuf[PKGCONF_BUFSIZE];
  
  			snprintf(packagebuf, sizeof packagebuf, "%s %s %s", package, argv[pkg_optind + 1], argv[pkg_optind + 2]);
  			pkg_optind += 3;
  
  			pkgconf_queue_push(&pkgq, packagebuf);
  		}
  	}
  
  	if (pkgq.head == NULL)
  	{
  		fprintf(stderr, "Please specify at least one package name on the command line.\n");
  		return EXIT_FAILURE;
  	}
  
  	ret = EXIT_SUCCESS;
  
  	if ((want_flags & PKG_SIMULATE) == PKG_SIMULATE)
  	{
  		want_flags &= ~(PKG_CFLAGS|PKG_LIBS);
  
  		if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_simulate, -1, global_traverse_flags | PKGCONF_PKG_PKGF_SKIP_ERRORS, NULL))
  		{
  			ret = EXIT_FAILURE;
  			goto out;
  		}
  	}
  
  	if (!pkgconf_queue_validate(&pkg_client, &pkgq, maximum_traverse_depth, global_traverse_flags))
  	{
  		ret = EXIT_FAILURE;
  		goto out;
  	}
  
  	if ((want_flags & PKG_VALIDATE) == PKG_VALIDATE)
  		return 0;
  
  	if ((want_flags & PKG_UNINSTALLED) == PKG_UNINSTALLED)
  	{
  		ret = EXIT_FAILURE;
  		pkgconf_queue_apply(&pkg_client, &pkgq, apply_uninstalled, maximum_traverse_depth, global_traverse_flags, &ret);
  		goto out;
  	}
  
  	if ((want_flags & PKG_PROVIDES) == PKG_PROVIDES)
  	{
  		want_flags &= ~(PKG_CFLAGS|PKG_LIBS);
  
  		if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_provides, maximum_traverse_depth, global_traverse_flags, NULL))
  		{
  			ret = EXIT_FAILURE;
  			goto out;
  		}
  	}
  
  	if ((want_flags & PKG_DIGRAPH) == PKG_DIGRAPH)
  	{
  		want_flags &= ~(PKG_CFLAGS|PKG_LIBS);
  
  		if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_digraph, maximum_traverse_depth, global_traverse_flags, NULL))
  		{
  			ret = EXIT_FAILURE;
  			goto out;
  		}
  	}
  
  	if ((want_flags & PKG_MODVERSION) == PKG_MODVERSION)
  	{
  		want_flags &= ~(PKG_CFLAGS|PKG_LIBS);
  
  		if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_modversion, 2, global_traverse_flags, NULL))
  		{
  			ret = EXIT_FAILURE;
  			goto out;
  		}
  	}
  
  	if ((want_flags & PKG_VARIABLES) == PKG_VARIABLES)
  	{
  		want_flags &= ~(PKG_CFLAGS|PKG_LIBS);
  
  		if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_variables, 2, global_traverse_flags, NULL))
  		{
  			ret = EXIT_FAILURE;
  			goto out;
  		}
  	}
  
  	if (want_variable)
  	{
  		want_flags &= ~(PKG_CFLAGS|PKG_LIBS);
  
  		if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_variable, 2, global_traverse_flags | PKGCONF_PKG_PKGF_SKIP_ROOT_VIRTUAL, want_variable))
  		{
  			ret = EXIT_FAILURE;
  			goto out;
  		}
  	}
  
  	if ((want_flags & PKG_REQUIRES) == PKG_REQUIRES)
  	{
  		want_flags &= ~(PKG_CFLAGS|PKG_LIBS);
  
  		if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_requires, maximum_traverse_depth, global_traverse_flags, NULL))
  		{
  			ret = EXIT_FAILURE;
  			goto out;
  		}
  	}
  
  	if ((want_flags & PKG_REQUIRES_PRIVATE) == PKG_REQUIRES_PRIVATE)
  	{
  		want_flags &= ~(PKG_CFLAGS|PKG_LIBS);
  
  		if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_requires_private, maximum_traverse_depth, global_traverse_flags, NULL))
  		{
  			ret = EXIT_FAILURE;
  			goto out;
  		}
  	}
  
  	if ((want_flags & PKG_CFLAGS))
  	{
  		if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_cflags, maximum_traverse_depth, global_traverse_flags, NULL))
  		{
  			ret = EXIT_FAILURE;
  			goto out_println;
  		}
  	}
  
  	if ((want_flags & PKG_LIBS))
  	{
  		if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_libs, maximum_traverse_depth, global_traverse_flags, NULL))
  		{
  			ret = EXIT_FAILURE;
  			goto out_println;
  		}
  	}
  
  	pkgconf_queue_free(&pkgq);
  
  out_println:
  	if (want_flags & (PKG_CFLAGS|PKG_LIBS))
  		printf(" \n");
  
  out:
  	pkgconf_client_deinit(&pkg_client);
  
  	if (logfile_out != NULL)
  		fclose(logfile_out);
  
  	return ret;
  }