0001-Improved-cross-compiler-support.patch

From a59fc9c4715970a1c21d055e1143957179b17ead Mon Sep 17 00:00:00 2001
From: "Guillermo A. Amaral" <g@maral.me>
Date: Sun, 30 Aug 2015 15:22:58 -0700
Subject: [PATCH] Improved cross compiler support.

* Added a configure option for sysroot.
* Prevent pkgconfig environment variables to be clobbered.
* Prevent PATH environment variable pollution.
* Backward compatible.

Signed-off-by: Guillermo A. Amaral <g@maral.me>
---
 configure | 31 +++++++++++++++++++++++++++----
 1 file changed, 27 insertions(+), 4 deletions(-)

diff --git a/configure b/configure
index 921c9b4..dadfd8a 100755
--- a/configure
+++ b/configure
@@ -22,6 +22,7 @@ pidfile='/var/run/bitlbee.pid'
 ipcsocket=''
 pcdir='$prefix/lib/pkgconfig'
 systemlibdirs="/lib64 /usr/lib64 /usr/local/lib64 /lib /usr/lib /usr/local/lib"
+sysroot=''

 # Set these to default-on to let it be overriden by either the user or purple
 #
@@ -148,6 +149,7 @@ Option      Description             Default


 --target=...   Cross compilation target        same as host
+--sysroot=...  Cross compilation sysroot       $sysroot
 EOF
        exit;
    fi
@@ -239,12 +241,33 @@ EOF


 if [ -n "$target" ]; then
-   PKG_CONFIG_LIBDIR=/usr/$target/lib/pkgconfig
-   export PKG_CONFIG_LIBDIR
-   PATH=/usr/$target/bin:$PATH
+   # prepend sysroot to system lib dirs
+
+   systemlibdirs_cross=''
+   for i in $systemlibdirs; do
+       systemlibdirs_cross+="$sysroot$i "
+   done
+   systemlibdirs=$systemlibdirs_cross
+   unset systemlibdirs_cross
+
+   # backward compatibility
+
+   if [ -z "$PKG_CONFIG_LIBDIR" ]; then
+       PKG_CONFIG_LIBDIR=/usr/$target/lib/pkgconfig
+       export PKG_CONFIG_LIBDIR
+   fi
+
+   if [ -d /usr/$target/bin ]; then
+       PATH=/usr/$target/bin:$PATH
+   fi
+
+   if [ -d /usr/$target/lib ]; then
+       systemlibdirs+="/usr/$target/lib"
+   fi
+
    CC=$target-cc
    LD=$target-ld
-   systemlibdirs="/usr/$target/lib"
+   STRIP=$target-strip
 fi

 if [ "$asan" = "1" ]; then
--
2.4.6