The VideoLAN Forums

Posted: **24 Mar 2014 02:46**

When trying to build VLC media player against the latest master git, the build aborts with an error.

Host OS: Ubuntu 13.10 64 bits
Target OS: Windows 32 bits

Steps to reproduce issue:

Download dev tools with:

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sudo apt-get -y install lua5.2 libtool automake autoconf autopoint make gettext pkg-config qt4-dev-tools git subversion yasm cmake cvs g++ ragel zip p7zip nsis bzip2 wine1.4-dev

Install latest mingw-w64 (MinGW-w64 3.1.0 and GCC 4.8.2) with Zeranoe's script (http://ffmpeg.zeranoe.com/blog/?p=269)

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sudo apt-get -y install texinfo flex bison
./mingw-w64-build-3.5.8
export PATH=${PATH}:/home/<user>/mingw-w64-i686/bin

Download sources with:

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git clone git://git.videolan.org/vlc.git vlc

Execute contrib build:

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cd vlc
mkdir -p contrib/win32
cd contrib/win32
../bootstrap --host=i686-w64-mingw32
make fetch
make

Execute main build:

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cd
cd vlc
./bootstrap
mkdir win32 && cd win32
../extras/package/win32/configure.sh --host=i686-w64-mingw32
make

The build aborts with the error:

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make[5]: Entering directory `/home/user/vlc/win32/modules/video_output'
  CCLD     libgl_plugin.la
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lGL
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -ldl
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -ldrm
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lXdamage
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lX11-xcb
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lxcb-glx
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lxcb-dri2
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lXxf86vm
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lXfixes
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lXext
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lX11
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lxcb
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lXau
/home/user/mingw-w64-i686/lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld: cannot find -lXdmcp
collect2: error: ld returned 1 exit status
make[5]: *** [libgl_plugin.la] Error 1
make[5]: Leaving directory `/home/user/vlc/win32/modules/video_output'
make[4]: *** [all] Error 2
make[4]: Leaving directory `/home/user/vlc/win32/modules/video_output'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/home/user/vlc/win32/modules'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/home/user/vlc/win32/modules'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/user/vlc/win32'
make: *** [all] Error 2

The main build can't find some contrib libraries, although the contrib build executed to the end without throwing any errors.

Posted: **24 Mar 2014 17:44**

libdrm does not exist on Windows. It looks rather like you have configured the build to use your build system's native OpenGL.

Posted: **24 Mar 2014 22:36**

libdrm does not exist on Windows. It looks rather like you have configured the build to use your build system's native OpenGL.

I didn´t, the build script did. Regardless of how --host parameter was set.

Looks like a cross-compilation bug. I can report it as a bug.

Posted: **25 Mar 2014 18:04**

Setting up the build environment is your job, not the build script's.

Posted: **26 Mar 2014 01:30**

Setting up the build environment is your job, not the build script's.

The same build environment works perfectly when building the stable 2.1.4 tag.

Posted: **01 Apr 2014 05:40**

I had similar issues with the latest branch:

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make[7]: Entering directory `/media/sf_temp/dev/vlc/win32/modules/gui/qt4'
  CXXLD    libqt4_plugin.la
/usr/bin/x86_64-w64-mingw32-ld: cannot find -laudio
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lXt
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lgobject-2.0
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lSM
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lICE
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lXi
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lXrender
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lXext
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lX11
/usr/bin/x86_64-w64-mingw32-ld: cannot find -ldl
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lgthread-2.0
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lglib-2.0
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lrt
collect2: error: ld returned 1 exit status

I saw that these libraries are added as a result of the pkg-config check:

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/usr/bin/x86_64-w64-mingw32-pkg-config --libs --static QtGui
-pthread -L/usr/X11R6/lib -lQtGui -laudio -lXt -lpng -lgobject-2.0 -lSM -lICE -lXi -lXrender -lfreetype -lXext -lX11 -lQtCore -lfontconfig -lpthread -lz -lm -ldl -lgthread-2.0 -lglib-2.0 -lrt

This is the wrong QtGui, and i suspect it was caused by the change to configure.ac in "configure: unbreak cross-pkg-config support with contrib":

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-  AS_IF([test "$build" = "$host" -o "$PKG_CONFIG_LIBDIR"], [
-    export PKG_CONFIG_PATH="${CONTRIB_DIR}/lib/pkgconfig:$PKG_CONFIG_PATH"
-  ], [
-    export PKG_CONFIG_LIBDIR="${CONTRIB_DIR}/lib/pkgconfig"
-  ])
+  export PKG_CONFIG_PATH="${CONTRIB_DIR}/lib/pkgconfig:$PKG_CONFIG_PATH"

I set the PKG_CONFIG_LIBDIR and the problem was solved. The question is if this is the behavior that we want, I think more developers are likely to encounter this problem.

Posted: **01 Apr 2014 21:03**

This is the documented behaviour in VLC and in pkg-config.

Posted: **23 Jul 2014 15:44**

What did you set PKG_CONFIG_LIBDIR to to get it to work? David

Posted: **25 Jul 2014 15:30**

For some time, I have also met these problems when cross compiling the latest git for Windows from Ubuntu14.04.

Here are the two patches I use as a workaround

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diff --git a/configure.ac b/configure.ac
index b847f57..d149698 100644
--- a/configure.ac
+++ b/configure.ac
@@ -392,6 +392,7 @@ AS_IF([test -n "${CONTRIB_DIR}"], [
   CXXFLAGS="${CXXFLAGS} -I${CONTRIB_DIR}/include"
   OBJCFLAGS="${OBJCFLAGS} -I${CONTRIB_DIR}/include"
   export PKG_CONFIG_PATH="${CONTRIB_DIR}/lib/pkgconfig:$PKG_CONFIG_PATH"
+  export PKG_CONFIG_LIBDIR="${CONTRIB_DIR}/lib/pkgconfig"
   LDFLAGS="${LDFLAGS} -L${CONTRIB_DIR}/lib"

   AS_IF([test "${SYS}" = "darwin"], [
diff --git a/extras/package/npapi.am b/extras/package/npapi.am
index e778f7d..3b33608 100644
--- a/extras/package/npapi.am
+++ b/extras/package/npapi.am
@@ -37,7 +37,7 @@ npapi-vlc/Makefile: npapi-vlc/configure
                CXX="$(CXX)" CXXFLAGS="$(CXXFLAGS)" \
                LD="$(LD)" LDFLAGS="$(LDFLAGS)" \
                SHELL="$(SHELL)" \
-               PKG_CONFIG_PATH="$(libdir)/pkgconfig:$(CONTRIB_DIR)/lib/pkgconfig"
+               PKG_CONFIG_LIBDIR="$(libdir)/pkgconfig:$(CONTRIB_DIR)/lib/pkgconfig"
        touch $@

 npapi-vlc/npapi/npvlc.la: npapi-vlc/Makefile
-- 
1.9.1

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diff --git a/extras/package/win32/package.mak b/extras/package/win32/package.mak
index 0b7abf8..7aac71b 100644
--- a/extras/package/win32/package.mak
+++ b/extras/package/win32/package.mak
@@ -25,7 +25,7 @@ package-win-install:
        touch $@
   
 
-package-win-common: package-win-install build-npapi
+package-win-common: package-win-install
        mkdir -p "$(win32_destdir)"/ 
 
 # Executables, major libs+manifests
@@ -54,10 +54,10 @@ if BUILD_SKINS
        cp -r $(prefix)/share/vlc/skins2 $(win32_destdir)/skins
 endif
                
-       cp "$(top_builddir)/npapi-vlc/activex/axvlc.dll.manifest" "$(win32_destdir)/"
-       cp "$(top_builddir)/npapi-vlc/installed/lib/axvlc.dll" "$(win32_destdir)/"
-       cp "$(top_builddir)/npapi-vlc/npapi/package/npvlc.dll.manifest" "$(win32_destdir)/"
-       cp "$(top_builddir)/npapi-vlc/installed/lib/npvlc.dll" "$(win32_destdir)/"
+#cp "$(top_builddir)/npapi-vlc/activex/axvlc.dll.manifest" "$(win32_destdir)/"
+#cp "$(top_builddir)/npapi-vlc/installed/lib/axvlc.dll" "$(win32_destdir)/"
+#cp "$(top_builddir)/npapi-vlc/npapi/package/npvlc.dll.manifest" "$(win32_destdir)/"
+#cp "$(top_builddir)/npapi-vlc/installed/lib/npvlc.dll" "$(win32_destdir)/"
 
 # Compiler shared DLLs, when using compilers built with --enable-shared
 # The shared DLLs may not necessarily be in the first LIBRARY_PATH, we

It amounts to adding the PKG_CONFIG_LIBDIR variable in configure.ac and disabling both npapi and activex.

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