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/* file : tests/basic/driver.c
* copyright : Copyright (c) 2016-2019 Code Synthesis Ltd
* license : ISC; see accompanying COPYING file
*/
/*
* Enable assertions.
*/
#ifdef NDEBUG
# undef NDEBUG
#endif
#include <libpkgconf/libpkgconf.h>
#include <stdio.h> /* printf(), fprintf(), stderr */
#include <stddef.h> /* NULL */
#include <stdlib.h> /* free() */
#include <assert.h>
#include <string.h> /* strcmp() */
#include <stdbool.h> /* bool, true, false */
static bool
error_handler (const char* msg, const pkgconf_client_t* c, const void* d)
{
(void) c; /* Unused. */
(void) d; /* Unused. */
/*
* Seems it always have a trailing newline char. Probably it still a good
* idea to check if it is. Let's see if it ever be missed.
*
*/
fprintf (stderr, "%s", msg);
return true;
}
static void
print_and_free (pkgconf_list_t* list)
{
char* buf = pkgconf_fragment_render (list,
true /* escape */,
NULL /* options */);
printf("%s", buf);
free (buf);
pkgconf_fragment_free (list);
}
/*
* Usage: argv[0] [--cflags] [--libs] (--with-path <dir>)* <name>
*
* Print package compiler and linker flags. If the package name has '.pc'
* extension it is interpreted as a file name. Prints all flags, as pkgconf
* utility does when --keep-system-libs and --keep-system-cflags are specified.
*
* --cflags
* Print compiler flags.
*
* --libs
* Print linker flags.
*
* --with-path <dir>
* Search through the directory for pc-files. If at least one --with-path
* is specified then the default directories are not searched through.
*/
int
main (int argc, const char* argv[])
{
pkgconf_client_t* c =
pkgconf_client_new (error_handler,
NULL /* error_handler_data */,
pkgconf_cross_personality_default ());
assert (c != NULL);
bool cflags = false;
bool libs = false;
bool default_dirs = true;
int client_flags = 0;
int i = 1;
for (; i < argc; ++i)
{
const char* o = argv[i];
if (strcmp (o, "--cflags") == 0)
cflags = true;
else if (strcmp (o, "--libs") == 0)
libs = true;
else if (strcmp (o, "--static") == 0)
client_flags = PKGCONF_PKG_PKGF_SEARCH_PRIVATE |
PKGCONF_PKG_PKGF_MERGE_PRIVATE_FRAGMENTS;
else if (strcmp (o, "--with-path") == 0)
{
++i;
assert (i < argc);
pkgconf_path_add (argv[i], &c->dir_list, /* filter_duplicates */ true);
default_dirs = false;
}
else
break;
}
assert (i + 1 == argc);
const char* name = argv[i];
int r = 1;
int max_depth = 2000;
pkgconf_client_set_flags (c, client_flags);
/*
* Bootstrap the package search default paths if not specified explicitly.
*/
if (default_dirs)
pkgconf_client_dir_list_build (c, pkgconf_cross_personality_default ());
pkgconf_pkg_t* p = pkgconf_pkg_find (c, name);
if (p != NULL)
{
int e = PKGCONF_PKG_ERRF_OK;
/*
* Print C flags.
*/
if (cflags)
{
pkgconf_client_set_flags (
c,
client_flags | PKGCONF_PKG_PKGF_SEARCH_PRIVATE);
pkgconf_list_t list = PKGCONF_LIST_INITIALIZER;
e = pkgconf_pkg_cflags (c, p, &list, max_depth);
if (e == PKGCONF_PKG_ERRF_OK)
print_and_free (&list);
pkgconf_client_set_flags (c, client_flags); /* Restore. */
}
/*
* Print libs.
*/
if (libs && e == PKGCONF_PKG_ERRF_OK)
{
pkgconf_list_t list = PKGCONF_LIST_INITIALIZER;
e = pkgconf_pkg_libs (c, p, &list, max_depth);
if (e == PKGCONF_PKG_ERRF_OK)
print_and_free (&list);
}
if (e == PKGCONF_PKG_ERRF_OK)
{
r = 0;
if (cflags || libs)
printf ("\n");
}
pkgconf_pkg_unref (c, p);
}
else
fprintf (stderr, "package '%s' not found\n", name);
pkgconf_client_free (c);
return r;
}
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