Disconnect libm from the build tree. It's broken, not being

maintained, and has been replaced by msun.  The libm sources
shouldn't be removed just yet as there are parts that should be
merged into msun first.

PR:		misc/17848
Discussed with:	phk & bde

2 files changed, 9 insertions, 8 deletions

diff --git a/lib/Makefile b/lib/Makefile
index b934bba..82b4ea4 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -7,7 +7,7 @@
 # csu must be built before all shared libaries for ELF.
 # libcom_err must be built before libkrb, libpam and libss.
 # libcrypt must be built before libkrb, libpam and libskey.
-# libm must be built before libg++ and libstdc++.
+# msun must be built before libg++ and libstdc++.
 # libmd must be built before libatm, libopie, libradius, libskey, and
 # libtacplus.
 # libncurses must be built before libdialog, libedit and libreadline.
@@ -19,7 +19,7 @@
 #
 # Otherwise, the SUBDIR list should be in alphabetical order.
 
-SUBDIR=	${_csu} libcom_err ${_libcrypt} ${_libm} libmd \
+SUBDIR=	${_csu} libcom_err ${_libcrypt} msun libmd \
 	libncurses libradius libskey libtacplus libutil \
 	${_compat} libalias libatm ${_libbind} libc ${_libc_r} libcalendar \
 	libcam libcompat libdevstat libdisk libedit libfetch libform \
@@ -56,12 +56,6 @@ _libncp=	libncp
 _libvgl=	libvgl
 .endif
 
-.if defined(WANT_CSRG_LIBM)
-_libm=		libm
-.else
-_libm=		msun
-.endif
-
 .if ${MACHINE_ARCH} == "alpha"
 _libio=		libio
 .endif
diff --git a/lib/libm/README-FREEBSD b/lib/libm/README-FREEBSD
new file mode 100644
index 0000000..d7ad931
--- /dev/null
+++ b/lib/libm/README-FREEBSD
@@ -0,0 +1,7 @@
+$FreeBSD$
+
+The libm library has been superceded by the msun library.  The
+source has not been delegated to the attic yet because there are
+still bits that need to be merged into msun.
+
+(end)