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Lakka-LibreELEC/packages/devel/pkg-config/patches/0001-Add-support-for-multiple-sysroots.patch
2020-02-10 08:53:39 +01:00

257 lines
7.1 KiB
Diff

From 64a39cd046040552729d32caef2a753b7f3dfc9c Mon Sep 17 00:00:00 2001
From: Andre Heider <a.heider@gmail.com>
Date: Thu, 19 Dec 2019 17:42:01 +0100
Subject: [PATCH] Add support for multiple sysroots
Introduce PKG_CONFIG_SYSROOT_BASE, which can be set to a base directory
under which multiple install prefixes exist.
Now it's possible to:
* configure and install libfoo with --prefix=/base/foo/usr
* configure and install libbar with --prefix=/base/bar/usr
* export PKG_CONFIG_SYSROOT_BASE=/base
and pkg-config attempts to detect the sysroot directory for each .pc
file located under the base directory, and sets its sysroot accordingly.
Example with libfoo.pc and libbar.pc both contain includedir=/usr/include
$ PKG_CONFIG_PATH=/base/foo/usr/lib/pkg-config:/base/bar/usr/lib/pkgconfig \
PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 \
pkg-config --cflags libfoo libbar
Will print "-I/base/foo/usr/include -I/base/bar/usr/include"
---
main.c | 5 ++++
parse.c | 2 ++
pkg.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++++---
pkg.h | 2 ++
4 files changed, 84 insertions(+), 3 deletions(-)
diff --git a/main.c b/main.c
index 9b27d9a..409d474 100644
--- a/main.c
+++ b/main.c
@@ -35,6 +35,7 @@
#undef STRICT
#endif
+GString *pcsysrootbase = NULL;
char *pcsysrootdir = NULL;
char *pkg_config_pc_path = NULL;
@@ -531,6 +532,8 @@ main (int argc, char **argv)
add_search_dirs(pkg_config_pc_path, G_SEARCHPATH_SEPARATOR_S);
}
+ pcsysrootbase = g_string_new(getenv("PKG_CONFIG_SYSROOT_BASE"));
+
pcsysrootdir = getenv ("PKG_CONFIG_SYSROOT_DIR");
if (pcsysrootdir)
{
@@ -834,5 +837,7 @@ main (int argc, char **argv)
if (need_newline)
printf ("\n");
+ g_string_free(pcsysrootbase, FALSE);
+
return 0;
}
diff --git a/parse.c b/parse.c
index 6e9907c..bea87f3 100644
--- a/parse.c
+++ b/parse.c
@@ -634,6 +634,7 @@ static void _do_parse_libs (Package *pkg, int argc, char **argv)
while (i < argc)
{
Flag *flag = g_new (Flag, 1);
+ flag->pkg = pkg;
char *tmp = trim_string (argv[i]);
char *arg = strdup_escape_shell(tmp);
char *p;
@@ -837,6 +838,7 @@ parse_cflags (Package *pkg, const char *str, const char *path)
while (i < argc)
{
Flag *flag = g_new (Flag, 1);
+ flag->pkg = pkg;
char *tmp = trim_string (argv[i]);
char *arg = strdup_escape_shell(tmp);
char *p = arg;
diff --git a/pkg.c b/pkg.c
index f29ecc7..ecae401 100644
--- a/pkg.c
+++ b/pkg.c
@@ -408,6 +408,9 @@ flag_list_strip_duplicates (GList *list)
if (cur->type == prev->type && g_strcmp0 (cur->arg, prev->arg) == 0)
{
+ if (cur->type & (CFLAGS_I | LIBS_L) && cur->pkg != prev->pkg)
+ continue;
+
/* Remove the duplicate flag from the list and move to the last
* element to prepare for the next iteration. */
GList *dup = tmp;
@@ -421,19 +424,75 @@ flag_list_strip_duplicates (GList *list)
return list;
}
+static const struct _suffix {
+ const char * const suffix;
+ const size_t len;
+} suffixes[] = {
+ {
+ "/usr/local/lib/pkgconfig",
+ 24,
+ },
+ {
+ "/usr/local/share/pkgconfig",
+ 26,
+ },
+ {
+ "/usr/lib/pkgconfig",
+ 18,
+ },
+ {
+ "/usr/share/pkgconfig",
+ 20,
+ },
+ {
+ "/lib/pkgconfig",
+ 14,
+ },
+ {
+ "/share/pkgconfig",
+ 16,
+ },
+};
+
+static void
+get_sysroot(const Package *pkg, GString *dst)
+{
+ if (pcsysrootbase->len && !strncmp(pkg->pcfiledir, pcsysrootbase->str, pcsysrootbase->len))
+ {
+ size_t len = strlen(pkg->pcfiledir);
+
+ for (int i = 0; i < sizeof(suffixes) / sizeof(*suffixes); i++)
+ {
+ const struct _suffix *x = &suffixes[i];
+
+ if (len > x->len && !strcmp(pkg->pcfiledir + len - x->len, x->suffix))
+ {
+ g_string_assign(dst, pkg->pcfiledir);
+ g_string_truncate(dst, dst->len - x->len);
+ return;
+ }
+ }
+ }
+
+ g_string_assign(dst, pcsysrootdir ? pcsysrootdir : "");
+}
+
static char *
flag_list_to_string (GList *list)
{
GList *tmp;
GString *str = g_string_new ("");
+ GString *sysroot = g_string_new ("");
+ GString *cmp = g_string_new(pcsysrootbase->len ? pcsysrootbase->str : pcsysrootdir);
char *retval;
tmp = list;
while (tmp != NULL) {
Flag *flag = tmp->data;
+ get_sysroot(flag->pkg, sysroot);
char *tmpstr = flag->arg;
- if (pcsysrootdir != NULL && flag->type & (CFLAGS_I | LIBS_L)) {
+ if (sysroot->len && flag->type & (CFLAGS_I | LIBS_L) && strncmp(tmpstr + 2, cmp->str, cmp->len)) {
/* Handle non-I Cflags like -isystem */
if (flag->type & CFLAGS_I && strncmp (tmpstr, "-I", 2) != 0) {
char *space = strchr (tmpstr, ' ');
@@ -441,14 +500,17 @@ flag_list_to_string (GList *list)
/* Ensure this has a separate arg */
g_assert (space != NULL && space[1] != '\0');
g_string_append_len (str, tmpstr, space - tmpstr + 1);
- g_string_append (str, pcsysrootdir);
+ g_string_append (str, sysroot->str);
g_string_append (str, space + 1);
} else {
g_string_append_c (str, '-');
g_string_append_c (str, tmpstr[1]);
- g_string_append (str, pcsysrootdir);
+ g_string_append (str, sysroot->str);
g_string_append (str, tmpstr+2);
}
+ } else if (sysroot->len && !strncmp(tmpstr, "/usr", 4) && strncmp(tmpstr, cmp->str, cmp->len)) {
+ g_string_append (str, sysroot->str);
+ g_string_append (str, tmpstr);
} else {
g_string_append (str, tmpstr);
}
@@ -458,6 +520,8 @@ flag_list_to_string (GList *list)
retval = str->str;
g_string_free (str, FALSE);
+ g_string_free (cmp, FALSE);
+ g_string_free (sysroot, TRUE);
return retval;
}
@@ -1046,6 +1110,8 @@ packages_get_var (GList *pkgs,
{
GList *tmp;
GString *str;
+ GString *sysroot = g_string_new ("");
+ GString *cmp = g_string_new(pcsysrootbase->len ? pcsysrootbase->str : pcsysrootdir);
str = g_string_new (NULL);
@@ -1055,11 +1121,14 @@ packages_get_var (GList *pkgs,
Package *pkg = tmp->data;
char *var;
+ get_sysroot(pkg, sysroot);
var = parse_package_variable (pkg, varname);
if (var)
{
if (str->len > 0)
g_string_append_c (str, ' ');
+ if (sysroot->len && (!strcmp(varname, "includedir") || !strcmp(varname, "libdir")) && strncmp(var, sysroot->str, sysroot->len))
+ g_string_append(str, sysroot->str);
g_string_append (str, var);
g_free (var);
}
@@ -1067,6 +1136,9 @@ packages_get_var (GList *pkgs,
tmp = g_list_next (tmp);
}
+ g_string_free(cmp, FALSE);
+ g_string_free(sysroot, TRUE);
+
return g_string_free (str, FALSE);
}
diff --git a/pkg.h b/pkg.h
index c6732bd..58edf38 100644
--- a/pkg.h
+++ b/pkg.h
@@ -53,6 +53,7 @@ struct Flag_
{
FlagType type;
char *arg;
+ Package *pkg;
};
struct RequiredVersion_
@@ -126,6 +127,7 @@ void disable_requires_private(void);
/* If TRUE, do not automatically prefer uninstalled versions */
extern gboolean disable_uninstalled;
+extern GString *pcsysrootbase;
extern char *pcsysrootdir;
/* pkg-config default search path. On Windows the current pkg-config install
--
2.24.0