Ooops, exported the wrong thing from git...
Sorry for the noise. Here's the intended patch
Cheers,
Peter
commit 1e1a3cb447ee0d725d6cd8249358d9d5595a039b
Author: Peter Rosin <peda@lysator.liu.se>
Date: Tue Jun 22 11:07:22 2010 +0200
MSVC needs a hint to force it to compile either as C or C++.
* libltdl/m4/libtool.m4: Add tag variable compile_tag to
enable tag specific compiler options that are bad in the
linking phase.
* libltdl/config/ltmain.m4sh: Add the tag specific options
to the compile command line.
* doc/libtool.texi (libtool script contents): Document
new variable.
diff --git a/ChangeLog b/ChangeLog
index 18e346d..2320bb8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2010-06-22 Peter Rosin <peda@lysator.liu.se>
+
+ MSVC needs a hint to force it to compile either as C or C++.
+ * libltdl/m4/libtool.m4: Add tag variable compile_tag to
+ enable tag specific compiler options that are bad in the
+ linking phase.
+ * libltdl/config/ltmain.m4sh: Add the tag specific options
+ to the compile command line.
+ * doc/libtool.texi (libtool script contents): Document
+ new variable.
+
2010-06-21 Gary V. Vaughan <gary@gnu.org>
Ensure getopts.m4sh is compatible with Autoconf-2.61 and newer.
diff --git a/doc/libtool.texi b/doc/libtool.texi
index 7ae2c66..94d9268 100644
--- a/doc/libtool.texi
+++ b/doc/libtool.texi
@@ -5910,6 +5910,11 @@ Whether libtool should build static libraries on this system. Set to
@samp{yes} or @samp{no}.
@end defvar
+@defvar compile_tag
+Add tag specific option for the compiler. Normally disabled (i.e.
+@code{compile_tag} is empty).
+@end defvar
+
@defvar compiler_c_o
Whether the compiler supports the @option{-c} and @option{-o} options
simultaneously. Set to @samp{yes} or @samp{no}.
diff --git a/libltdl/config/ltmain.m4sh b/libltdl/config/ltmain.m4sh
index a325e27..d484694 100644
--- a/libltdl/config/ltmain.m4sh
+++ b/libltdl/config/ltmain.m4sh
@@ -854,6 +854,10 @@ func_mode_compile ()
pic_mode=default
fi
+ if test -n "$compile_tag"; then
+ base_compile="$base_compile $compile_tag"
+ fi
+
# Calculate the filename of the output object if compiler does
# not support -o with -c
if test "$compiler_c_o" = no; then
diff --git a/libltdl/m4/libtool.m4 b/libltdl/m4/libtool.m4
index b93dd0c..e5f2459 100644
--- a/libltdl/m4/libtool.m4
+++ b/libltdl/m4/libtool.m4
@@ -5347,6 +5347,8 @@ _LT_TAGDECL([], [prelink_cmds], [2],
[Commands necessary for linking programs (against libraries) with templates])
_LT_TAGDECL([], [file_list_spec], [1],
[Specify filename containing input files])
+_LT_TAGDECL([], [compile_tag], [1],
+ [Add tag specific option for the compiler])
dnl FIXME: Not yet implemented
dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
dnl [Compiler flag to generate thread safe objects])
