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libpkgconf: Rewrite the prefix of all variables

pull/177/head
Patrick Griffis 2018-03-07 23:40:00 -05:00
parent d5fdb22910
commit 0a92786ef4
1 changed files with 22 additions and 1 deletions
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23
libpkgconf/pkg.c
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@ -287,6 +287,8 @@ pkgconf_pkg_new_from_file(pkgconf_client_t *client, const char *filename, FILE *
pkgconf_pkg_t *pkg;
char readbuf[PKGCONF_BUFSIZE];
char pathbuf[PKGCONF_ITEM_SIZE];
char original_prefix[PKGCONF_ITEM_SIZE];
char prefix[PKGCONF_ITEM_SIZE];
char *idptr;
size_t lineno = 0;
@ -294,6 +296,8 @@ pkgconf_pkg_new_from_file(pkgconf_client_t *client, const char *filename, FILE *
pkg->filename = strdup(filename);
pkgconf_tuple_add(client, &pkg->vars, "pcfiledir", pkg_get_parent_dir(pkg, pathbuf, sizeof pathbuf), true);
original_prefix[0] = '\0';
/* make module id */
if ((idptr = strrchr(pkg->filename, PKG_DIR_SEP_S)) != NULL)
idptr++;
@ -368,7 +372,22 @@ pkgconf_pkg_new_from_file(pkgconf_client_t *client, const char *filename, FILE *
pkgconf_pkg_parser_keyword_set(client, pkg, lineno, key, value);
break;
case '=':
if (strcmp(key, client->prefix_varname) || !(client->flags & PKGCONF_PKG_PKGF_REDEFINE_PREFIX))
/* Some pc files will use absolute paths for all of their directories
* which is broken when redefining the prefix. We try to outsmart the
* file and rewrite any directory that starts with the same prefix.
* Note that `pkg-config` just blindly sets all of the directories
* so this is a behavioral difference but arguablly more correct.
*/
if (client->flags & PKGCONF_PKG_PKGF_REDEFINE_PREFIX && original_prefix[0]
&& !strncmp(value, original_prefix, strlen(original_prefix)))
{
char newvalue[PKGCONF_ITEM_SIZE];
pkgconf_strlcpy(newvalue, prefix, sizeof newvalue);
pkgconf_strlcat(newvalue, value + strlen(original_prefix), sizeof newvalue);
pkgconf_tuple_add(client, &pkg->vars, key, newvalue, false);
}
else if (strcmp(key, client->prefix_varname) || !(client->flags & PKGCONF_PKG_PKGF_REDEFINE_PREFIX))
pkgconf_tuple_add(client, &pkg->vars, key, value, true);
else
{
@ -377,6 +396,8 @@ pkgconf_pkg_new_from_file(pkgconf_client_t *client, const char *filename, FILE *
{
pkgconf_tuple_add(client, &pkg->vars, "orig_prefix", value, true);
pkgconf_tuple_add(client, &pkg->vars, key, relvalue, false);
pkgconf_strlcpy(original_prefix, value, sizeof original_prefix);
pkgconf_strlcpy(prefix, relvalue, sizeof original_prefix);
}
else
pkgconf_tuple_add(client, &pkg->vars, key, value, true);