Revert "s3-build: Remove --enable-merged support."

This reverts commit f8fc7fcbeb8141c5b2775e2219bae17c55ad4a3c.

Was that pushed by coincidence ? merged build is really, really required over
here.

1 files changed, 48 insertions, 3 deletions

diff --git a/source3/configure.in b/source3/configure.in
index a30f3018e3..9a190cc872 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -195,15 +195,17 @@ AC_ARG_WITH(profiling-data,
 )
 
 dnl Checks for programs.
+merged_build_possible=yes
+
 AC_PROG_INSTALL
 AC_PROG_AWK
 # Check for GNU make
 m4_include(../m4/check_make.m4)
-AC_SAMBA_GNU_MAKE([true], [true])
+AC_SAMBA_GNU_MAKE([true], [merged_build_possible=no])
 
 # Check for perl
 m4_include(../m4/check_perl.m4)
-AC_SAMBA_PERL([true], [true])
+AC_SAMBA_PERL([true], [merged_build_possible=no])
 
 AC_CHECK_TOOL(AR, ar)
 
@@ -1829,6 +1831,7 @@ if test x"$BLDSHARED" != x"true"; then
 	SHLD="shared-libraries-disabled"
 	PICFLAG="${PIE_CFLAGS}"
 	SHLIBEXT="shared_libraries_disabled"
+	merged_build_possible=no
 fi
 
 AC_MSG_CHECKING([used PICFLAG])
@@ -4232,6 +4235,10 @@ if test x"$with_ads_support" != x"no"; then
 LIBS="$ac_save_LIBS"
 fi
 
+if test x"$use_ads" != xyes; then
+	merged_build_possible=no
+fi
+
 AC_CHECK_LIB_EXT(nscd, NSCD_LIBS, nscd_flush_cache)
 PASSDB_LIBS="$PASSDB_LIBS $NSCD_LIBS"
 
@@ -6620,8 +6627,39 @@ MSG
 
 fi
 
+AC_ARG_ENABLE(merged-build, 
+[AS_HELP_STRING([--enable-merged-build], [Build Samba 4 as well])], 
+[ enable_merged_build=$enableval ], [ enable_merged_build=auto ])
+
+if test x"$enable_merged_build" = x"yes" -a \
+	x"$merged_build_possible" = x"no" ; then
+	AC_MSG_ERROR(Merged build required but not possible)
+fi
+
 m4_include(../lib/zlib/zlib.m4)
 
+if test x$enable_merged_build = xauto; then
+	# Check for python
+	m4_include(../m4/check_python.m4)
+	AC_SAMBA_PYTHON_DEVEL([true], [merged_build_possible=no])
+
+	AC_MSG_CHECKING([whether it would be possible to do a merged build])
+	AC_MSG_RESULT([$merged_build_possible])
+
+	# Enable merged build automatically if possible, when in developer mode
+	if test "x$developer" = xyes; then
+		enable_merged_build=$merged_build_possible
+	fi
+fi
+
+if test x$enable_merged_build = xyes; then
+	MERGED_BUILD=1
+	saved_USESHARED="$USESHARED"
+	USESHARED="false"
+	m4_include(samba4.m4)
+	USESHARED="$saved_USESHARED"
+fi
+
 AC_SUBST(ZLIB_LIBS)
 AC_SUBST(ZLIB_OBJS)
 AC_ZLIB([ZLIB_OBJS=""], [
@@ -6693,7 +6731,14 @@ SMBD_LIBS="$samba_dmapi_libs"
 AC_SUBST(SMBD_LIBS)
 
 CFLAGS="${CFLAGS} \$(FLAGS)"
-CFLAGS="${CFLAGS} -D_SAMBA_BUILD_=3"
+
+if test x$MERGED_BUILD != x1; then
+	CFLAGS="${CFLAGS} -D_SAMBA_BUILD_=3"
+else
+	if test x"$BLDSHARED" = x"true" ; then
+		LDFLAGS="$LDFLAGS -L./bin"
+	fi
+fi
 
 AC_SUBST(MAKEFILE)
 if test x$samba_cv_gnu_make = xyes; then