[vlc-devel] [PATCH] build: support YASM targets

[Luca Barbato]

The files must be .asm
---

Initial working version, sent as preview.
Something slightly better will come later possibly, feedbacks welcome nonetheless.

 configure.ac      | 21 +++++++++++++++++++++
 m4/dolt.m4        | 50 ++++++++++++++++++++++++--------------------------
 modules/common.am |  5 +++++
 3 files changed, 50 insertions(+), 26 deletions(-)

diff --git a/configure.ac b/configure.ac
index ecf1bdd..219079a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -79,6 +79,7 @@ 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
@@ -102,6 +103,17 @@ dnl
 dnl  Check the operating system
 dnl
 HAVE_WIN64="0"
+
+case "${host}" in
+    i?86*)
+    YASMFLAGS="-f elf32"
+        ;;
+    x86_64*)
+    YASMFLAGS="-f elf64"
+        ;;
+esac
+
+
 case "${host_os}" in
   "")
     SYS=unknown
@@ -137,6 +149,7 @@ case "${host_os}" in
     case "${host}" in
       i?86*)
         ARCH_flag="-arch i386"
+        YASMFLAGS="-f macho32"
       ;;
       ppc64*)
         ARCH_flag="-arch ppc64"
@@ -146,6 +159,7 @@ case "${host_os}" in
       ;;
       x86_64*)
         ARCH_flag="-arch x86_64"
+        YASMFLAGS="-f macho64"
       ;;
       arm*)
         ac_cv_c_bigendian="no"
@@ -243,10 +257,12 @@ case "${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)
@@ -265,13 +281,16 @@ case "${host_os}" in
     ;;
   symbian*)
     SYS=symbian
+    YASMFLAGS=""
     ;;
   *os2*)
     SYS=os2
     LDFLAGS="${LDFLAGS} -Zomf -Zbin-files -Zargs-wild"
+    YASMFLAGS=""
     ;;
   *)
     SYS="${host_os}"
+    YASMFLAGS=""
     ;;
 esac
 AM_CONDITIONAL(HAVE_DARWIN,  test "${SYS}" = "darwin")
@@ -281,6 +300,8 @@ 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 d14bbe7..ff28bef 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 at 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 94fb399..9f78fb9 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 $@
--
1.8.3.2