From 5c926c42f3d53d55d2568fcb19aae2adc1816080 Mon Sep 17 00:00:00 2001
From: Jonas Karlman <jonas@kwiboo.se>
Date: Wed, 4 Jan 2017 22:36:56 +0100
Subject: [PATCH] pkg-config: use sysroot path

---
 config/functions                              |  6 ++++
 .../pkg-config-0001-use-sysroot-path.patch    | 28 +++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 packages/devel/pkg-config/patches/pkg-config-0001-use-sysroot-path.patch

diff --git a/config/functions b/config/functions
index e52cbec6ec..c27fe873fe 100644
--- a/config/functions
+++ b/config/functions
@@ -17,9 +17,12 @@ setup_toolchain() {
       export CFLAGS="$TARGET_CFLAGS"
       export CXXFLAGS="$TARGET_CXXFLAGS"
       export LDFLAGS="$TARGET_LDFLAGS"
+      export PKG_CONFIG="$ROOT/$TOOLCHAIN/bin/pkg-config"
       export PKG_CONFIG_PATH=""
       export PKG_CONFIG_LIBDIR="$SYSROOT_PREFIX/usr/lib/pkgconfig:$SYSROOT_PREFIX/usr/share/pkgconfig"
       export PKG_CONFIG_SYSROOT_DIR="$SYSROOT_PREFIX"
+      export PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1
+      export PKG_CONFIG_ALLOW_SYSTEM_LIBS=1
       export CMAKE_CONF=$ROOT/$TOOLCHAIN/etc/cmake-$TARGET_NAME.conf
       export CMAKE="cmake -DCMAKE_TOOLCHAIN_FILE=$CMAKE_CONF -DCMAKE_INSTALL_PREFIX=/usr"
       if [ ! -f $CMAKE_CONF ] ; then
@@ -66,9 +69,12 @@ setup_toolchain() {
       export CFLAGS="$HOST_CFLAGS"
       export CXXFLAGS="$HOST_CXXFLAGS"
       export LDFLAGS="$HOST_LDFLAGS"
+      export PKG_CONFIG="$ROOT/$TOOLCHAIN/bin/pkg-config"
       export PKG_CONFIG_PATH=""
       export PKG_CONFIG_LIBDIR="$ROOT/$TOOLCHAIN/lib/pkgconfig:$ROOT/$TOOLCHAIN/share/pkgconfig"
       export PKG_CONFIG_SYSROOT_DIR=""
+      unset PKG_CONFIG_ALLOW_SYSTEM_CFLAGS
+      unset PKG_CONFIG_ALLOW_SYSTEM_LIBS
       export CMAKE_CONF=$ROOT/$TOOLCHAIN/etc/cmake-$HOST_NAME.conf
       export CMAKE="cmake -DCMAKE_TOOLCHAIN_FILE=$CMAKE_CONF -DCMAKE_INSTALL_PREFIX=$ROOT/$TOOLCHAIN"
       if [ ! -f $CMAKE_CONF ] ; then
diff --git a/packages/devel/pkg-config/patches/pkg-config-0001-use-sysroot-path.patch b/packages/devel/pkg-config/patches/pkg-config-0001-use-sysroot-path.patch
new file mode 100644
index 0000000000..0b53525fd8
--- /dev/null
+++ b/packages/devel/pkg-config/patches/pkg-config-0001-use-sysroot-path.patch
@@ -0,0 +1,28 @@
+diff -Naur a/pkg.c b/pkg.c
+--- a/pkg.c	2016-02-26 17:56:52.000000000 +0100
++++ b/pkg.c	2017-01-02 19:48:34.000000000 +0100
+@@ -468,11 +468,14 @@
+     Flag *flag = tmp->data;
+     char *tmpstr = flag->arg;
+ 
+-    if (pcsysrootdir != NULL && flag->type & (CFLAGS_I | LIBS_L)) {
++    if (pcsysrootdir != NULL && flag->type & (CFLAGS_I | LIBS_L) && strncmp(tmpstr+2, pcsysrootdir, strlen(pcsysrootdir)) != 0) {
+       g_string_append_c (str, '-');
+       g_string_append_c (str, tmpstr[1]);
+       g_string_append (str, pcsysrootdir);
+       g_string_append (str, tmpstr+2);
++    } else if (pcsysrootdir != NULL && strncmp(tmpstr, "/usr", 4) == 0 && strncmp(tmpstr, pcsysrootdir, strlen(pcsysrootdir)) != 0) {
++      g_string_append (str, pcsysrootdir);
++      g_string_append (str, tmpstr);
+     } else {
+       g_string_append (str, tmpstr);
+     }
+@@ -1087,6 +1090,8 @@
+         {
+           if (str->len > 0)
+             g_string_append_c (str, ' ');
++          if (pcsysrootdir != NULL && (strcmp(varname, "includedir") == 0 || strcmp(varname, "libdir") == 0) && strncmp(var, pcsysrootdir, strlen(pcsysrootdir)) != 0)
++            g_string_append (str, pcsysrootdir);
+           g_string_append (str, var);
+           g_free (var);
+         }