X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/9fe40f0e26340190a179651f1498a462d11f9e5b..6fc0aac3632372ac488ccdd269fdf86c53701f28:/configure.in
diff --git a/configure.in b/configure.in
index 3bcd60b386..dce2a6271c 100644
--- a/configure.in
+++ b/configure.in
@@ -4,7 +4,7 @@ dnl autoconf
dnl in the directory containing this script.
dnl
dnl Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2003,
-dnl 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+dnl 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
dnl
dnl This file is part of GNU Emacs.
dnl
@@ -12,17 +12,17 @@ dnl GNU Emacs is free software: you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation, either version 3 of the License, or
dnl (at your option) any later version.
-dnl
+dnl
dnl GNU Emacs is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
-dnl
+dnl
dnl You should have received a copy of the GNU General Public License
dnl along with GNU Emacs. If not, see .
-AC_PREREQ(2.61)
-AC_INIT(emacs, 23.1.50)
+AC_PREREQ(2.62)
+AC_INIT(emacs, 23.2.92)
AC_CONFIG_HEADER(src/config.h:src/config.in)
AC_CONFIG_SRCDIR(src/lisp.h)
@@ -144,6 +144,7 @@ OPTION_DEFAULT_OFF([ns],[use nextstep (Cocoa or GNUstep) windowing system])
OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
+OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
## For the times when you want to build Emacs but don't have
## a suitable makeinfo, and can live without the manuals.
@@ -168,6 +169,12 @@ if test "X${with_pkg_config_prog}" != X; then
fi
fi
+CRT_DIR=
+AC_ARG_WITH([crt-dir],dnl
+[AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
+This option is only used on x86-64 and s390x GNU/Linux architectures.])])
+CRT_DIR="${with_crt_dir}"
+
AC_ARG_WITH([gnustep-conf],dnl
[AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
@@ -210,12 +217,12 @@ elif test "${enableval}" != "yes"; then
fi)
AC_ARG_ENABLE(checking,
-[ --enable-checking[=LIST]
- enable expensive run-time checks. With LIST,
- enable only specific categories of checks.
- Categories are: all,yes,no.
- Flags are: stringbytes, stringoverrun, stringfreelist,
- xmallocoverrun, conslist],
+[AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
+ [enable expensive run-time checks. With LIST,
+ enable only specific categories of checks.
+ Categories are: all,yes,no.
+ Flags are: stringbytes, stringoverrun, stringfreelist,
+ xmallocoverrun, conslist])],
[ac_checking_flags="${enableval}"],[])
IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
for check in $ac_checking_flags
@@ -274,9 +281,9 @@ if test x$ac_gc_check_cons_list != x ; then
fi
AC_ARG_ENABLE(profiling,
-[ --enable-profiling
- Build emacs with profiling support.
- This might not work on all platforms.],
+[AS_HELP_STRING([--enable-profiling],
+ [build emacs with profiling support.
+ This might not work on all platforms])],
[ac_enable_profiling="${enableval}"],[])
if test x$ac_enable_profiling != x ; then
PROFILING_CFLAGS="-DPROFILING=1 -pg"
@@ -286,6 +293,13 @@ else
PROFILING_LDFLAGS=
fi
+AC_ARG_ENABLE(autodepend,
+[AS_HELP_STRING([--enable-autodepend],
+ [automatically generate dependencies to .h-files.
+ Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
+ found])],
+[ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
+
#### Make srcdir absolute, if it isn't already. It's important to
#### avoid running the path through pwd unnecessarily, since pwd can
#### give you automounter prefixes, which can go away. We do all this
@@ -406,9 +420,9 @@ dnl see the `changequote' comment above.
case "${canonical}" in
alpha*-*-netbsd*) machine=alpha ;;
i[3456]86-*-netbsd*) machine=intel386 ;;
- mips-*-netbsd*) machine=pmax ;;
- mipsel-*-netbsd*) machine=pmax ;;
- mipseb-*-netbsd*) machine=pmax ;;
+ mips-*-netbsd*) machine=mips ;;
+ mipsel-*-netbsd*) machine=mips ;;
+ mipseb-*-netbsd*) machine=mips ;;
powerpc-*-netbsd*) machine=macppc ;;
sparc*-*-netbsd*) machine=sparc ;;
vax-*-netbsd*) machine=vax ;;
@@ -456,6 +470,7 @@ dnl see the `changequote' comment above.
case "${canonical}" in
i[3456]86-* ) machine=intel386 ;;
powerpc-* ) machine=macppc ;;
+ x86_64-* ) machine=amdx86-64 ;;
* ) unported=yes ;;
esac
opsys=darwin
@@ -478,6 +493,10 @@ dnl see the `changequote' comment above.
CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
;;
+ ia64*-hp-hpux1[1-9]* )
+ machine=hp800 opsys=hpux11
+ ;;
+
hppa*-*-linux-gnu* )
machine=hp800 opsys=gnu-linux
;;
@@ -578,15 +597,6 @@ dnl see the `changequote' comment above.
esac
;;
- ## Vaxen.
- vax-dec-* )
- machine=vax
- case "${canonical}" in
- *-vms* ) opsys=vms ;;
- * ) unported=yes
- esac
- ;;
-
## IA-64
ia64*-*-linux* )
machine=ia64 opsys=gnu-linux
@@ -757,6 +767,19 @@ CFLAGS="$SAVE_CFLAGS"
unset has_option
unset SAVE_CFLAGS
+### Use -Wdeclaration-after-statement if the compiler supports it
+AC_MSG_CHECKING([whether gcc understands -Wdeclaration-after-statement])
+SAVE_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wdeclaration-after-statement"
+AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
+if test $has_option = yes; then
+ C_WARNINGS_SWITCH="-Wdeclaration-after-statement $C_WARNINGS_SWITCH"
+fi
+AC_MSG_RESULT($has_option)
+CFLAGS="$SAVE_CFLAGS"
+unset has_option
+unset SAVE_CFLAGS
+
#### Some other nice autoconf tests.
dnl checks for programs
@@ -786,11 +809,11 @@ fi
## pre-built, and not deleted by the normal clean rules. makeinfo is
## therefore in the category of "special tools" not normally required, which
## configure does not have to check for (eg autoconf itself).
-## In a CVS checkout on the other hand, the manuals are not included.
-## So makeinfo is a requirement to build from CVS, and configure
+## In a Bazaar checkout on the other hand, the manuals are not included.
+## So makeinfo is a requirement to build from Bazaar, and configure
## should test for it as it does for any other build requirement.
## We use the presence of $srcdir/info/emacs to distinguish a release,
-## with pre-built manuals, from a CVS checkout.
+## with pre-built manuals, from a Bazaar checkout.
if test "$MAKEINFO" = "no"; then
if test "x${with_makeinfo}" = "xno"; then
MAKEINFO=off
@@ -983,18 +1006,28 @@ AC_CONFIG_LIBOBJ_DIR(src)
dnl Do this early because it can frob feature test macros for Unix-98 &c.
AC_SYS_LARGEFILE
-
-### The standard library on x86-64 and s390x GNU/Linux distributions can
-### be located in either /usr/lib64 or /usr/lib.
-### In some rare cases, /usr/lib64 exists but does not contain the
-### relevant files (bug#1287). Hence test for crtn.o.
+## Note: at present CRT_DIR is only used for amdx86-64 and ibms390x.
+## Other machine types hard-code the location in src/[ms]/*.h.
case "${canonical}" in
x86_64-*-linux-gnu* | s390x-*-linux-gnu* )
- if test -e /usr/lib64/crtn.o; then
- AC_DEFINE(HAVE_LIB64_DIR, 1,
- [Define to 1 if the directory /usr/lib64 exists.])
-fi
+ ## On x86-64 and s390x GNU/Linux distributions, the standard library
+ ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
+ ## For anything else (eg /usr/lib32), it is up the user to specify
+ ## the location (bug#5655).
+ ## Test for crtn.o, not just the directory, because sometimes the
+ ## directory exists but does not have the relevant files (bug#1287).
+ ## If user specified a crt-dir, use that unconditionally.
+ if test "X$CRT_DIR" = "X"; then
+ CRT_DIR=/usr/lib
+ test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
+ fi
+
+ test -e $CRT_DIR/crtn.o || test -e $CRT_DIR/crt0.o || \
+ AC_MSG_ERROR([crt*.o not found. Use --with-crt-dir to specify the location.])
+ ;;
esac
+test "X$CRT_DIR" = "X" && CRT_DIR=/usr/lib
+AC_SUBST(CRT_DIR)
dnl This function defintion taken from Gnome 2.0
dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
@@ -1093,7 +1126,7 @@ AC_CHECK_HEADERS(sys/select.h sys/timeb.h sys/time.h unistd.h utime.h \
linux/version.h sys/systeminfo.h termios.h limits.h string.h stdlib.h \
termcap.h stdio_ext.h fcntl.h strings.h coff.h pty.h sys/mman.h \
sys/param.h sys/vlimit.h sys/resource.h locale.h sys/_mbstate_t.h \
- sys/utsname.h pwd.h)
+ sys/utsname.h pwd.h utmp.h)
AC_MSG_CHECKING(if personality LINUX32 can be set)
AC_TRY_COMPILE([#include ], [personality (PER_LINUX32)],
@@ -1237,6 +1270,32 @@ dnl AC_C_BIGENDIAN
dnl check for Make feature
AC_PROG_MAKE_SET
+dnl check for GNU Make if we have GCC and autodepend is on.
+if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
+ AC_MSG_CHECKING([whether we are using GNU Make])
+ HAVE_GNU_MAKE=no
+ testval=`make --version 2>/dev/null | grep 'GNU Make'`
+ if test "x$testval" != x; then
+ HAVE_GNU_MAKE=yes
+ else
+ ac_enable_autodepend=no
+ fi
+ AC_MSG_RESULT([$HAVE_GNU_MAKE])
+ if test $HAVE_GNU_MAKE = yes; then
+ AC_MSG_CHECKING([whether gcc understands -MMD -MF])
+ SAVE_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -MMD -MF deps.d"
+ AC_TRY_COMPILE([], [], , ac_enable_autodepend=no)
+ CFLAGS="$SAVE_CFLAGS"
+ test -f deps.d || ac_enable_autodepend=no
+ rm -rf deps.d
+ AC_MSG_RESULT([$ac_enable_autodepend])
+ fi
+ if test $ac_enable_autodepend = yes; then
+ AC_DEFINE(AUTO_DEPEND, 1, [Generate dependencies with gcc.])
+ fi
+fi
+
dnl checks for operating system services
AC_SYS_LONG_FILE_NAMES
@@ -1254,7 +1313,7 @@ fi
## No need to do anything special for these standard directories.
## This is an experiment, take it out if it causes problems.
if test -n "${x_libraries}" && test x"${x_libraries}" != xNONE; then
-
+
x_libraries=`echo :${x_libraries}: | sed -e 's|:/usr/lib64:|:|g' -e 's|:/lib64:|:|g' -e 's|^:||' -e 's|:$||'`
fi
@@ -1571,7 +1630,7 @@ fi
### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
HAVE_RSVG=no
-if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
+if test "${HAVE_X11}" = "yes" || test "${NS_IMPL_GNUSTEP}" = "yes"; then
if test "${with_rsvg}" != "no"; then
RSVG_REQUIRED=2.11.0
RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
@@ -1708,7 +1767,21 @@ HAVE_DBUS=no
if test "${with_dbus}" = "yes"; then
PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
if test "$HAVE_DBUS" = yes; then
- AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
+ LIBS="$LIBS $DBUS_LIBS"
+ AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
+ AC_CHECK_FUNCS([dbus_watch_get_unix_fd])
+ fi
+fi
+
+dnl GConf has been tested under GNU/Linux only.
+dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
+HAVE_GCONF=no
+if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
+ PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
+ if test "$HAVE_GCONF" = yes; then
+ AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
+ dnl Newer GConf doesn't link with g_objects, so this is not defined.
+ AC_CHECK_FUNCS([g_type_init])
fi
fi
@@ -1723,7 +1796,8 @@ if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
#include
#include ],
[],
- emacs_cv_xaw3d=yes,
+ [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
+ emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
emacs_cv_xaw3d=no)])
else
emacs_cv_xaw3d=no
@@ -1933,12 +2007,17 @@ if test "${HAVE_X11}" = "yes"; then
if test "x${with_xft}" != "xno"; then
PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
- if test "$HAVE_XFT" != no; then
+ ## Because xftfont.c uses XRenderQueryExtension, we also
+ ## need to link to -lXrender.
+ HAVE_XRENDER=no
+ AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
+ if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
OLD_CPPFLAGS="$CPPFLAGS"
OLD_CFLAGS="$CFLAGS"
OLD_LIBS="$LIBS"
CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
CFLAGS="$CFLAGS $XFT_CFLAGS"
+ XFT_LIBS="-lXrender $XFT_LIBS"
LIBS="$XFT_LIBS $LIBS"
AC_CHECK_HEADER(X11/Xft/Xft.h,
AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
@@ -1977,7 +2056,7 @@ if test "${HAVE_X11}" = "yes"; then
AC_DEFINE(HAVE_FREETYPE, 1,
[Define to 1 if using the freetype and fontconfig libraries.])
if test "${with_libotf}" != "no"; then
- PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
+ PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
HAVE_LIBOTF=no)
if test "$HAVE_LIBOTF" = "yes"; then
AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
@@ -2186,6 +2265,7 @@ if test "${HAVE_NS}" = "yes"; then
fi
# We also have mouse menus.
HAVE_MENUS=yes
+ OTHER_FILES=ns-app
fi
@@ -2297,6 +2377,15 @@ AC_CHECK_FUNCS(getpt)
# than to expect to find it in ncurses.
AC_CHECK_LIB(ncurses, tparm)
+case "$opsys" in
+ netbsd)
+ AC_SEARCH_LIBS(tputs, [ncurses terminfo termcap])
+ if test $ac_cv_search_tputs = -lterminfo; then
+ AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
+ fi
+ ;;
+esac
+
# Do we have res_init, for detecting changes in /etc/resolv.conf?
resolv=no
@@ -2543,12 +2632,23 @@ dnl Fixme: Use AC_FUNC_MEMCMP since memcmp is used. (Needs libobj replacement.)
CFLAGS="$REAL_CFLAGS"
CPPFLAGS="$REAL_CPPFLAGS"
+## Hack to detect a buggy GCC version.
+if test "x$GCC" = xyes \
+ && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
+ && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
+ && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
+ AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
+fi
+
#### Find out which version of Emacs this is.
[version=`grep 'defconst[ ]*emacs-version' ${srcdir}/lisp/version.el \
| sed -e 's/^[^"]*"\([^"]*\)".*$/\1/'`]
if test x"${version}" = x; then
AC_MSG_ERROR([can't find current emacs version in `${srcdir}/lisp/version.el'.])
fi
+if test x"${version}" != x"$PACKAGE_VERSION"; then
+ AC_MSG_WARN([version mismatch between `${srcdir}/configure.in' and `${srcdir}/lisp/version.el'.])
+fi
### Specify what sort of things we'll be editing into Makefile and config.h.
### Use configuration here uncanonicalized to avoid exceeding size limits.
@@ -2593,6 +2693,7 @@ AC_SUBST(GNUSTEP_SYSTEM_HEADERS)
AC_SUBST(GNUSTEP_SYSTEM_LIBRARIES)
AC_SUBST(GNU_OBJC_CFLAGS)
AC_SUBST(LIB_SRC_EXTRA_INSTALLABLES)
+AC_SUBST(OTHER_FILES)
AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
[Define to the canonical Emacs configuration name.])
@@ -2656,7 +2757,7 @@ fi
AH_TOP([/* GNU Emacs site configuration template file.
Copyright (C) 1988, 1993, 1994, 1999, 2000, 2001, 2002, 2004, 2005,
- 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+ 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
This file is part of GNU Emacs.
@@ -2739,7 +2840,6 @@ AH_BOTTOM([
side does this in s/darwin.h and we cannot
parallel this exactly since GNUstep is multi-OS. */
#ifdef HAVE_NS
-#define OTHER_FILES ns-app
# ifdef NS_IMPL_GNUSTEP
/* See also .m.o rule in Makefile.in */
/* FIXME: are all these flags really needed? Document here why. */
@@ -2843,15 +2943,19 @@ extern char *getenv ();
#ifdef HAVE_STDLIB_H
#include
#endif
-#ifndef __GNUC__
-# ifdef HAVE_ALLOCA_H
-# include
-# else /* AIX files deal with #pragma. */
-# ifndef alloca /* predefined by HP cc +Olibcalls */
-char *alloca ();
-# endif
-# endif /* HAVE_ALLOCA_H */
-#endif /* __GNUC__ */
+#ifdef HAVE_ALLOCA_H
+# include
+#elif defined __GNUC__
+# define alloca __builtin_alloca
+#elif defined _AIX
+# define alloca __alloca
+#else
+# include
+# ifdef __cplusplus
+extern "C"
+# endif
+void *alloca (size_t);
+#endif
#ifndef HAVE_SIZE_T
typedef unsigned size_t;
#endif
@@ -2954,6 +3058,7 @@ echo " Does Emacs use -lpng? ${HAVE_PNG}"
echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
echo " Does Emacs use -lgpm? ${HAVE_GPM}"
echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
+echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
@@ -2970,16 +3075,6 @@ fi
echo
-if test "$USE_X_TOOLKIT" = GTK; then
- case "$canonical" in
- *cygwin*)
- echo "There are known problems with Emacs and Gtk+ on cygwin, so you
- will probably get a crash on startup. If this happens, please use another
- toolkit for Emacs. See etc/PROBLEMS for more information."
- ;;
- esac
-fi
-
if test "$HAVE_NS" = "yes"; then
echo
echo "You must run \"make install\" in order to test the built application.
@@ -2995,11 +3090,6 @@ to run if these resources are not installed."
echo
fi
-if test "$HAVE_DBUS" = yes && test "${opsys}" != "gnu-linux"; then
- echo "D-Bus integration has been tested for GNU/Linux only."
- echo
-fi
-
# Remove any trailing slashes in these variables.
[test "${prefix}" != NONE &&
@@ -3013,7 +3103,7 @@ test "${exec_prefix}" != NONE &&
# the C preprocessor to some helpful value like 1, or maybe the empty
# string. Needless to say consequent macro substitutions are less
# than conducive to the makefile finding the correct directory.
-[cpp_undefs="`echo $srcdir $configuration $canonical |
+[cpp_undefs="`echo $srcdir $configuration $canonical unix |
sed -e 's/[^a-zA-Z0-9_]/ /g' -e 's/^/ /' -e 's/ *$//' \
-e 's/ */ -U/g' -e 's/-U[0-9][^ ]*//g'`"]
@@ -3059,7 +3149,7 @@ echo creating lib-src/Makefile
sed -e '1,/start of cpp stuff/d'\
-e 's,/\*\*/#\(.*\)$,/* \1 */,' \
< Makefile.c > junk.c
- $CPP $cpp_undefs -I. -I$srcdir/src $CPPFLAGS junk.c | \
+ $CPP -P $cpp_undefs -I. -I$srcdir/src $CPPFLAGS junk.c | \
sed -e 's/^ / /' -e '/^#/d' -e '/^[ ]*$/d' > junk2.c
cat junk1.c junk2.c > Makefile.new
rm -f junk.c junk1.c junk2.c
@@ -3075,7 +3165,7 @@ echo creating src/Makefile
sed -e '1,/start of cpp stuff/d'\
-e 's,/\*\*/#\(.*\)$,/* \1 */,' \
< Makefile.c > junk.c
- $CPP $cpp_undefs -I. -I$srcdir/src $CPPFLAGS junk.c | \
+ $CPP -P $cpp_undefs -I. -I$srcdir/src $CPPFLAGS junk.c | \
sed -e 's/^ / /' -e '/^#/d' -e '/^[ ]*$/d' > junk2.c
cat junk1.c junk2.c > Makefile.new
rm -f junk.c junk1.c junk2.c