diff --git a/configure.ac b/configure.ac
index 4a8099c2ca..59352b8994 100644
--- a/configure.ac
+++ b/configure.ac
@@ -73,6 +73,7 @@ AM_PROG_AS
 
 AC_ARG_VAR([DESKTOP_FILE_VALIDATE], [Validator for desktop entry files])
 AC_CHECK_PROGS(DESKTOP_FILE_VALIDATE, [${DESKTOP_FILE_VALIDATE} desktop-file-validate], :)
+AC_CHECK_PROGS(YASM, yasm)
 
 dnl Check for compiler properties
 AC_C_CONST
@@ -96,6 +97,18 @@ dnl
 dnl  Check the operating system
 dnl
 HAVE_WIN64="0"
+
+YASMFLAGS=""
+case "${host}" in
+    i?86*)
+    YASMFLAGS="-f elf32"
+        ;;
+    x86_64*)
+    YASMFLAGS="-f elf64"
+        ;;
+esac
+
+
 case "${host_os}" in
   "")
     SYS=unknown
@@ -131,6 +144,7 @@ case "${host_os}" in
     case "${host}" in
       i?86*)
         ARCH_flag="-arch i386"
+        YASMFLAGS="-f macho32"
       ;;
       ppc64*)
         ARCH_flag="-arch ppc64"
@@ -140,6 +154,7 @@ case "${host_os}" in
       ;;
       x86_64*)
         ARCH_flag="-arch x86_64"
+        YASMFLAGS="-f macho64"
       ;;
       arm*)
         ac_cv_c_bigendian="no"
@@ -237,10 +252,12 @@ case "${host_os}" in
                 HAVE_WIN64="1"
                 WINDOWS_ARCH="x64"
                 PROGRAMFILES="PROGRAMFILES64"
+                YASMFLAGS="-f win64"
             ;;
             *)
                 WINDOWS_ARCH="x86"
                 PROGRAMFILES="PROGRAMFILES"
+                YASMFLAGS="-f win32"
             ;;
         esac
         AC_SUBST(WINDOWS_ARCH)
@@ -275,6 +292,8 @@ AM_CONDITIONAL(HAVE_WIN32,   test "${SYS}" = "mingw32")
 AM_CONDITIONAL(HAVE_WIN64,   test "${HAVE_WIN64}" = "1")
 AM_CONDITIONAL(HAVE_SYMBIAN, test "${SYS}" = "symbian")
 
+AC_SUBST(YASMFLAGS)
+
 dnl
 dnl Sadly autoconf does not think about testing foo.exe when ask to test
 dnl for program foo on win32
diff --git a/m4/dolt.m4 b/m4/dolt.m4
index d14bbe781b..ff28bef516 100644
--- a/m4/dolt.m4
+++ b/m4/dolt.m4
@@ -12,36 +12,24 @@ AC_DEFUN([DOLT], [
 AC_REQUIRE([AC_CANONICAL_HOST])
 # dolt, a replacement for libtool
 # Josh Triplett <josh@freedesktop.org>
-AC_PATH_PROG(DOLT_BASH, bash)
+AC_PATH_PROG([DOLT_BASH], [bash])
 AC_MSG_CHECKING([if dolt supports this host])
 dolt_supported=yes
-if test x$DOLT_BASH = x; then
-    dolt_supported=no
-fi
-if test x$GCC != xyes; then
-    dolt_supported=no
-fi
-case $host in
-*-*-linux* \
-|amd64-*-freebsd*|i?86-*-freebsd*|ia64-*-freebsd*)
-    pic_options='-fPIC'
-    ;;
-*-apple-darwin*)
-    pic_options='-fno-common'
-    ;;
-*mingw*|*nacl*)
-    pic_options=''
-    ;;
-*)
-    dolt_supported=no
-    ;;
-esac
-if test x$dolt_supported = xno ; then
+AS_IF([test x$DOLT_BASH = x], [dolt_supported=no])
+AS_IF([test x$GCC != xyes], [dolt_supported=no])
+
+AS_CASE([$host],
+    [*-*-linux*|*-*-freebsd*], [pic_options='-fPIC'],
+    [*-apple-darwin*],         [pic_options='-fno-common'],
+    [*mingw*|*nacl*],          [pic_options='']
+    [*],                       [dolt_supported=no]
+)
+AS_IF([test x$dolt_supported = xno], [
     AC_MSG_RESULT([no, falling back to libtool])
     LTCOMPILE='$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(COMPILE)'
     LTCXXCOMPILE='$(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CXXCOMPILE)'
     m4_pattern_allow([AM_V_lt])
-else
+], [
     AC_MSG_RESULT([yes, replacing libtool])
 
 dnl Start writing out doltcompile.
@@ -85,7 +73,13 @@ pic_object="$libobjdir/$objbase.o"
 args@<:@$objarg@:>@="$pic_object"
 __DOLTCOMPILE__EOF__
     cat <<__DOLTCOMPILE__EOF__ >>doltcompile
-"\${args@<:@@@:>@}" $pic_options -DPIC || exit \$?
+    pic_options="$pic_options"
+    if test x\$passthrough = xtrue; then
+        pic_options=""
+    fi
+__DOLTCOMPILE__EOF__
+    cat <<'__DOLTCOMPILE__EOF__' >>doltcompile
+${args@<:@@@:>@} $pic_options -DPIC || exit $?
 __DOLTCOMPILE__EOF__
     fi
 
@@ -161,6 +155,7 @@ for arg in "$[]@"; do
     case "$arg" in
         --mode=compile) modeok=true ;;
         --tag=CC|--tag=CXX) tagok=true ;;
+        --tag=ASM|--tag=YASM) tagok=true; passthrough=true;;
         --silent|--quiet) ;;
         *) args@<:@${#args[@]}@:>@="$arg" ;;
     esac
@@ -175,7 +170,10 @@ __DOLTLIBTOOL__EOF__
 dnl Done writing out doltlibtool; substitute it for libtool.
     chmod +x doltlibtool
     LIBTOOL='$(top_builddir)/doltlibtool'
-fi
+
+DOLT_CLEANFILES="doltlibtool doltcompile"
+AC_SUBST(DOLT_CLEANFILES)
+])
 AC_SUBST(LTCOMPILE)
 AC_SUBST(LTCXXCOMPILE)
 # end dolt
diff --git a/modules/common.am b/modules/common.am
index 94fb399bd0..9f78fb9a39 100644
--- a/modules/common.am
+++ b/modules/common.am
@@ -35,3 +35,8 @@ AM_LDFLAGS = \
 if HAVE_WIN32
 AM_LDFLAGS += $(top_builddir)/modules/module.rc.lo
 endif
+
+SUFFIXES = .asm
+
+.asm.lo:
+	$(LIBTOOL) --mode=compile --tag=ASM $(YASM) $(YASMFLAGS) $< -o $@
diff --git a/modules/gui/qt4/Makefile.am b/modules/gui/qt4/Makefile.am
index f0b8095ec0..82f55fbcb4 100644
--- a/modules/gui/qt4/Makefile.am
+++ b/modules/gui/qt4/Makefile.am
@@ -12,7 +12,7 @@ guidir = $(pluginsdir)/gui
 # For each ressource (icon, png, ...)
 #   - Add it to DEPS_res
 
-SUFFIXES = .ui .h .hpp .moc.cpp
+SUFFIXES += .ui .h .hpp .moc.cpp
 
 libqt4_plugin_la_CXXFLAGS = $(AM_CXXFLAGS) $(QT_CFLAGS)
 libqt4_plugin_la_LIBADD = $(QT_LIBS)