Replace map files by -export-symbols-regex use

We had to support -export-symbols-regex anways
And map file did not really support versions but only list which symbol
to export. So this is more simple.

configure.ac

@@ -87,31 +87,6 @@ if test "x$enable_as_needed" != "xno"; then
   esac
 fi
 
-dnl check whether ld supports --version-script
-AC_ARG_ENABLE([ld-version-script],
-  AS_HELP_STRING([--disable-ld-version-script],
-    [Disable linker version script for libraries (default is to use linker version script if the linker supports it)]),
-  [enable_version_script=$enableval],
-  [enable_version_script=auto])
-
-if test "$enable_version_script" = auto
-then
-	AC_MSG_CHECKING([whether $LD supports --version-scripts.])
-	SAVED_LDFLAGS="$LDFLAGS"
-	LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map"
-	cat > conftest.map <<EOF
-	VERS_1 {
-	  global: *;
-	};
-EOF
-	AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
-	  [enable_version_script=yes; AC_MSG_RESULT([yes])],
-	  [enable_version_script=no; AC_MSG_RESULT([no])])
-	LDFLAGS="$SAVED_LDFLAGS"
-fi
-
-AM_CONDITIONAL(VERSION_SCRIPT, test x$enable_version_script = xyes)
-
 dnl check for iODBC
 
 AC_ARG_WITH(iodbc,

src/libmdb/Makefile.am

@@ -1,10 +1,5 @@
 lib_LTLIBRARIES	=	libmdb.la
 libmdb_la_SOURCES=	catalog.c mem.c file.c table.c data.c dump.c backend.c money.c sargs.c index.c like.c write.c stats.c map.c props.c worktable.c options.c iconv.c
-libmdb_la_LDFLAGS = -version-info 2:1:0
+libmdb_la_LDFLAGS = -version-info 2:1:0 -export-symbols-regex '^(mdb_|_mdb_put_int16$$|_mdb_put_int32$$)'
 AM_CPPFLAGS	=	-I$(top_srcdir)/include $(GLIB_CFLAGS)
 LIBS = $(GLIB_LIBS) @LIBS@
-if VERSION_SCRIPT
-  libmdb_la_LDFLAGS += -Wl,--version-script=$(srcdir)/libmdb.map
-else
-  libmdb_la_LDFLAGS += -export-symbols-regex '^(mdb_|_mdb_put_int16$$|_mdb_put_int32$$)'
-endif

src/libmdb/libmdb.map

@@ -1,9 +0,0 @@
-{
-global:
-	mdb_*;
-	_mdb_put_int16;
-	_mdb_put_int32;
-
-local:
-	*;
-};

src/odbc/Makefile.am

@@ -4,11 +4,6 @@ lib_LTLIBRARIES	=	libmdbodbc.la
 AM_CPPFLAGS	=	-I$(top_srcdir)/include $(GLIB_CFLAGS) $(ODBC_CFLAGS)
 libmdbodbc_la_SOURCES=	odbc.c connectparams.c
 libmdbodbc_la_LIBADD=	../libmdb/libmdb.la ../sql/libmdbsql.la
-libmdbodbc_la_LDFLAGS = -version-info 1:1:0
+libmdbodbc_la_LDFLAGS = -version-info 1:1:0 -export-symbols-regex '^(SQL|ODBCINST)'
 LIBS	=	@LEXLIB@ $(GLIB_LIBS) $(ODBC_LIBS)
 unittest_LDADD	=	libmdbodbc.la ../libmdb/libmdb.la ../sql/libmdbsql.la
-if VERSION_SCRIPT
-  libmdbodbc_la_LDFLAGS += -Wl,--version-script=$(srcdir)/libmdbodbc.map
-else
-  libmdbodbc_la_LDFLAGS += -export-symbols-regex '^(SQL|ODBCINST)'
-endif

src/odbc/libmdbodbc.map

@@ -1,8 +0,0 @@
-{
-global:
-	SQL*;
-	ODBCINST*;
-
-local:
-	*;
-};

src/sql/Makefile.am

@@ -1,13 +1,8 @@
 lib_LTLIBRARIES	=	libmdbsql.la
 libmdbsql_la_SOURCES=	mdbsql.c parser.y lexer.l 
-libmdbsql_la_LDFLAGS = -version-info 2:0:0
+libmdbsql_la_LDFLAGS = -version-info 2:0:0 -export-symbols-regex '^mdb_sql_'
 CLEANFILES = parser.c parser.h lexer.c
 AM_CPPFLAGS	=	-I$(top_srcdir)/include $(GLIB_CFLAGS)
 LIBS	=	$(GLIB_LIBS)
 libmdbsql_la_LIBADD =	../libmdb/libmdb.la
 YACC = @YACC@ -d
-if VERSION_SCRIPT
-  libmdbsql_la_LDFLAGS += -Wl,--version-script=$(srcdir)/libmdbsql.map
-else
-  libmdbsql_la_LDFLAGS += -export-symbols-regex '^mdb_sql_'
-endif

src/sql/libmdbsql.map

@@ -1,7 +0,0 @@
-{
-global:
-	mdb_sql_*;
-
-local:
-	*;
-};