[Bug 1845185] Re: Cannot build qemu utils (qemu-img.exe, qemu-edid.exe, qemu-io.exe) statically with MSYS64 on Windows because intl and iconv libs are not loaded

[Peter Maydell]

I think this is probably a bug in the packaging of glib. What does "pkg-
config --static --libs glib-2.0" say? If it doesn't say that you need to
add -lintl -liconv to do a static link against glib, then that's a glib
packaging bug.  If it does say you need those flags, then we have a QEMU
configure script bug where we're failing to get the link line correct
(but we should fix it by using pkg-config correctly, not by manually
adding the libraries to the LIBS variable).

I'm not sure how much this applies to Windows, but in general we don't
support static linking for anything except the linux-user executables,
largely because so often the libraries we depend on don't ship with
correct pkg-config data for how to statically link them.

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Title:
  Cannot build qemu utils (qemu-img.exe, qemu-edid.exe, qemu-io.exe)
  statically with MSYS64 on Windows because intl and iconv libs are not
  loaded

Status in QEMU:
  New

Bug description:
  Using MSYS2 and mingw32 instructions from
  https://wiki.qemu.org/Hosts/W32#Native_builds_with_MSYS2, I could not
  statically build the qemu-utils using the latest qemu master branch.

  Steps to reproduce the issue:
  1. Install MSYS2 on a Windows 10 x64 box
  2. Install required mingw64 toolchain: pacman -S base-devel 
mingw-w64-x86_64-toolchain git python mingw-w64-x86_64-glib2 
mingw64/mingw-w64-x86_64-gtk3 mingw64/mingw-w64-x86_64-SDL2
  3. clone qemu
  4. Run configure for static build for the tools only
    ./configure --disable-user --disable-system --disable-docs --enable-tools  
--disable-guest-agent --disable-capstone --disable-sheepdog --enable-debug 
--static
    # I had to remove sheepdog, capstone and guest agent because other errors 
popped out, but let's not go in the rabbit hole.
  5. Run 'make -j'. the following errors appeared, signaling that intl lib is 
not loaded. If I add intl lib, iconv lib needs to be loaded too.

  make: *** [/home/ader1990/qemu/rules.mak:124: qemu-img.exe] Error 1
  make: *** Waiting for unfinished jobs....
  C:/msys64l/mingw64/lib\libglib-2.0.a(giowin32.c.obj):(.text+0x1522): 
undefined reference to `libintl_sprintf'
  C:/msys64l/mingw64/lib\libglib-2.0.a(giowin32.c.obj):(.text+0x154f): 
undefined reference to `libintl_sprintf'
  C:/msys64l/mingw64/lib\libglib-2.0.a(giowin32.c.obj):(.text+0x157e): 
undefined reference to `libintl_sprintf'
  C:/msys64l/mingw64/lib\libglib-2.0.a(giowin32.c.obj):(.text+0x15ad): 
undefined reference to `libintl_sprintf'
  C:/msys64l/mingw64/lib\libglib-2.0.a(giowin32.c.obj):(.text+0x15dc): 
undefined reference to `libintl_sprintf'
  C:/msys64l/mingw64/lib\libglib-2.0.a(giowin32.c.obj):(.text+0x1622): more 
undefined references to `libintl_sprintf' follow
  C:/msys64l/mingw64/lib\libglib-2.0.a(ggettext.c.obj):(.text+0x43): undefined 
reference to `libintl_textdomain'
  C:/msys64l/mingw64/lib\libglib-2.0.a(ggettext.c.obj):(.text+0x52): undefined 
reference to `libintl_gettext'
  C:/msys64l/mingw64/lib\libglib-2.0.a(ggettext.c.obj):(.text+0x203): undefined 
reference to `libintl_bindtextdomain'
  C:/msys64l/mingw64/lib\libglib-2.0.a(ggettext.c.obj):(.text+0x21e): undefined 
reference to `libintl_bind_textdomain_codeset'
  C:/msys64l/mingw64/lib\libglib-2.0.a(ggettext.c.obj):(.text+0x2c1): undefined 
reference to `libintl_dgettext'
  C:/msys64l/mingw64/lib\libglib-2.0.a(ggettext.c.obj):(.text+0x4e1): undefined 
reference to `libintl_dcgettext'
  C:/msys64l/mingw64/lib\libglib-2.0.a(ggettext.c.obj):(.text+0x53a): undefined 
reference to `libintl_dngettext'

  Patch to fix the issue (added intl and iconv to the libs):

  diff --git a/configure b/configure
  index 30aad233d1..e2ab8ef026 100755
  --- a/configure
  +++ b/configure
  @@ -920,7 +920,7 @@ if test "$mingw32" = "yes" ; then
     DSOSUF=".dll"
     # MinGW needs -mthreads for TLS and macro _MT.
     QEMU_CFLAGS="-mthreads $QEMU_CFLAGS"
  -  LIBS="-lwinmm -lws2_32 -liphlpapi $LIBS"
  +  LIBS="-lwinmm -lws2_32 -liphlpapi -lintl -liconv $LIBS"
     write_c_skeleton;
     if compile_prog "" "-liberty" ; then
       LIBS="-liberty $LIBS"

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