Hello Olly,
* Olly Betts wrote on Tue, Sep 19, 2006 at 01:21:58AM CEST:
>
> After mail from a user who'd tried to specify "-l<library>" in LDFLAGS
> I was suprised to realise that the output of "./configure --help"
> doesn't mention LIBS at all. I think it should
[...]
> Digging deeper, I noticed LIBS doesn't seem to get marked as precious,
> which I think must be an oversight.
Thanks for the report. The documentation even already lists LIBS as
precious (Preset Output Variables: ...They are all precious...).
OK to install?
Cheers,
Ralf
* lib/autoconf/c.m4 (_AC_ARG_VAR_LDFLAGS): Update comment.
(_AC_ARG_VAR_LIBS): New macro: let LIBS be precious.
(AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC): Call _AC_ARG_VAR_LIBS.
* lib/autoconf/fortran.m4 (AC_PROG_F77, AC_PROG_FC): Likewise.
Report by Olly Betts.
Index: lib/autoconf/c.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/c.m4,v
retrieving revision 1.234
diff -u -r1.234 c.m4
--- lib/autoconf/c.m4 24 Aug 2006 18:08:17 -0000 1.234
+++ lib/autoconf/c.m4 20 Sep 2006 16:00:09 -0000
@@ -389,13 +389,21 @@
# _AC_ARG_VAR_LDFLAGS
# -------------------
# Document and register LDFLAGS, which is used by
-# AC_PROG_{CC, CXX, F77}.
+# AC_PROG_{CC, CXX, F77, FC, OBJC}.
AC_DEFUN([_AC_ARG_VAR_LDFLAGS],
[AC_ARG_VAR([LDFLAGS],
[linker flags, e.g. -L<lib dir> if you have libraries in a
nonstandard directory <lib dir>])])
+# _AC_ARG_VAR_LIBS
+# ----------------
+# Document and register LIBS, which is used by
+# AC_PROG_{CC, CXX, F77, FC, OBJS}.
+AC_DEFUN([_AC_ARG_VAR_LIBS],
+[AC_ARG_VAR([LIBS],
+ [libraries to pass to the linker, e.g. -l<library>])])
+
# AC_LANG_PREPROC(C)
# -------------------
@@ -517,6 +525,7 @@
AC_ARG_VAR([CC], [C compiler command])dnl
AC_ARG_VAR([CFLAGS], [C compiler flags])dnl
_AC_ARG_VAR_LDFLAGS()dnl
+_AC_ARG_VAR_LIBS()dnl
_AC_ARG_VAR_CPPFLAGS()dnl
m4_ifval([$1],
[AC_CHECK_TOOLS(CC, [$1])],
@@ -756,6 +765,7 @@
AC_ARG_VAR([CXX], [C++ compiler command])dnl
AC_ARG_VAR([CXXFLAGS], [C++ compiler flags])dnl
_AC_ARG_VAR_LDFLAGS()dnl
+_AC_ARG_VAR_LIBS()dnl
_AC_ARG_VAR_CPPFLAGS()dnl
_AC_ARG_VAR_PRECIOUS([CCC])dnl
if test -z "$CXX"; then
@@ -926,6 +936,7 @@
AC_ARG_VAR([OBJC], [Objective C compiler command])dnl
AC_ARG_VAR([OBJCFLAGS], [Objective C compiler flags])dnl
_AC_ARG_VAR_LDFLAGS()dnl
+_AC_ARG_VAR_LIBS()dnl
_AC_ARG_VAR_CPPFLAGS()dnl
_AC_ARG_VAR_PRECIOUS([OBJC])dnl
AC_CHECK_TOOLS(OBJC,
Index: lib/autoconf/fortran.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/fortran.m4,v
retrieving revision 1.212
diff -u -r1.212 fortran.m4
--- lib/autoconf/fortran.m4 5 Sep 2006 17:17:31 -0000 1.212
+++ lib/autoconf/fortran.m4 20 Sep 2006 16:00:09 -0000
@@ -392,6 +392,7 @@
AC_ARG_VAR([F77], [Fortran 77 compiler command])dnl
AC_ARG_VAR([FFLAGS], [Fortran 77 compiler flags])dnl
_AC_ARG_VAR_LDFLAGS()dnl
+_AC_ARG_VAR_LIBS()dnl
_AC_PROG_FC([Fortran 77], [$1])
G77=`test $ac_compiler_gnu = yes && echo yes`
AC_LANG_POP(Fortran 77)dnl
@@ -407,6 +408,7 @@
AC_ARG_VAR([FC], [Fortran compiler command])dnl
AC_ARG_VAR([FCFLAGS], [Fortran compiler flags])dnl
_AC_ARG_VAR_LDFLAGS()dnl
+_AC_ARG_VAR_LIBS()dnl
_AC_PROG_FC([$2], [$1])
AC_LANG_POP(Fortran)dnl
])# AC_PROG_FC
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