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[toplevel configury] Do not prepend $srcdir to /dev/null
- From: Phil Edwards <phil at jaj dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Mon, 5 Jul 2004 14:58:47 -0400
- Subject: [toplevel configury] Do not prepend $srcdir to /dev/null
All the makefile fragments go through a process of
foo_frag=/dev/null
case $something in
... zillion possibilities
special) foo_frag=config/special ;;
esac
foo_frag=${srcdir}/${foo_frag}
AC_SUBST_FILE(foo_frag)
which leads to sed attempting to open /path/to/source//dev/null for reading
during the file creation phase of configure (config.status to be precise).
Fortunately, sed silently deals with failure to open a nonexistent file
and keeps going. When by unhappy chance the file exists, hilarity ensues.
Tested both by configuring and by visual inspection of config.status. Okay?
2004-07-05 Phil Edwards <phil@codesourcery.com>
* configure.in: Do not prepend $srcdir to /dev/null in
makefile fragments.
* configure: Regenerate.
Index: configure.in
===================================================================
RCS file: /cvs/gcc/gcc/configure.in,v
retrieving revision 1.298
diff -u -p -r1.298 configure.in
--- configure.in 2 Jul 2004 07:55:37 -0000 1.298
+++ configure.in 5 Jul 2004 18:45:13 -0000
@@ -2039,10 +2039,13 @@ CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(ST
RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
# Makefile fragments.
-host_makefile_frag=${srcdir}/${host_makefile_frag}
-target_makefile_frag=${srcdir}/${target_makefile_frag}
-alphaieee_frag=${srcdir}/${alphaieee_frag}
-ospace_frag=${srcdir}/${ospace_frag}
+for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
+do
+ eval fragval=\$$frag
+ if test $fragval != /dev/null; then
+ eval $frag=${srcdir}/$fragval
+ fi
+done
AC_SUBST_FILE(host_makefile_frag)
AC_SUBST_FILE(target_makefile_frag)
AC_SUBST_FILE(alphaieee_frag)